maximum station precipitation for l, 2, 24...

U. S. DEPARTMENT OF COMMERCE CHARLES SAWYER, Secretary

WEATHER BUREAU F. W. REICHELDERFER, Chief

TECHNICAL PAPER NO.- 15

Maximum Station Precipitation for

l, 2, 3, 6, 12, and 24 Hours

Part II: Idaho

DIVISION OF CLIMATOLOGICAL AND HYDROLOGIC ·SERVICES

COOPERATIVE STUDIES SECTION

In cooperation with

U.S. DEPARTMENT OF THE INTERIOR, BUREAU OF RECLAMATION

WASHINGTON, D. C.

1951

MAXIMUM STATIONPRECIPITATION FOR 1, 2, 3, 6, 12, AND 24 HOURS

INTRODUCTION

This report, which is one of a planned series covering the entire United States, was prompted by the long-standing and widespread interest in maximum observed precipitation amounts for durations of 24 hours and under. At least two summaries of this type of data :i1ave already been preparedl. Neither summary involved more than a couple of hundred stations throughout the United States, and no attempt was made to determine the month-tomonth variation of the maximum.values .. Eventually, the records for some 3000 recording gages in the United States will have been examined for maximum amounts. The survey for the eastern half of the country is being conductedby the Hyd:r:ometeorblogical Section in cooperation with the Corps of Engineers and that for the western half by the Cooperative Studies Section in cooperation with the Bureau of Reclamation. Sources of data are (1) Hydrologic Bulletin, (2) Climatological Data, (3) WB Form 1009, Cooperative Observers Meteorological Record, (4) WB Form 1017, triple-reg:lster sheet, and (5) WB Form 1030, Monthly Climatological Summary.

All precipitation amounts presented in the tabulations are in inches.

The station names and locations shown on the index map (p. 3) are those listed in Climatological Data for December 1949. Some stations have operated under two or more names and/or at several local sites during the period of record. Any important change in location usually calls for a new station name so that records for the two site.s are automatically tabulated separately.

The p~riod of record, except at Weather Bureau first-order stations, is limited to the 10 years since the hydrologic network of weighing gages was inaugurated about 1940. In the case of Weather Bureau first-order stations, tipping-bucket gage records were surveyed for the entire period of

1. Yarnell, D. L., "Rainfall Intensity-Frequency Data", U.S. Department of Agriculture Miscellaneous Publication No. 204, August 1935.

Shands, A. L., and D. Ammerman, "Maximum Recorded United States Point Rainfall", Weather Bureau Technical Paper No. 2, April 1947.

2

record prior to 1950. For comparative purposes, two sets of maxima were obtained from these long records, one for the period 1940-1949 and the.other for the period from the installation of the tippingbucket gage through 1949. Records for stations in operation less than 5 years were not used unless the stations were active through 1949, in which case their maxima are listed to facilitate future surveys of subsequent data. If the period of record was not continuous and any single interruption was less than one year, the notation "with break (s)'' is inserted after the years denoting the period of record. Interruptions of one year or longer are shown by separate listing of the years, e.g., 1940-1942, 1943-1949, indicating that a break of 12 months or longer occurred in 1~42-1943.

Many recording-gage stations are also equipped with nonrecording gages. Maxima from nonrecording gages were used whenever they exceeded those of the recording gages and are identified in the tables by the letter ''N' '. Such maxima appear quite frequently in the 24-hour column but only occasionally in the 6-and 12-hour columns since the catch is measured at 24-hour intervals for most nonrecording gages and at 6 or 12-hour intervals for only a few.

The time intervals· used in most of the survey and tabulations begin on the hour. This practice yields lower values than would be obtained by allowing the interval to begin any time within an hour, but the extra work involved in obtaining the true values would greatly increase the cost of the project. It is possible that when the survey for the entire United States has been completed an attempt will be made to determine the relation between true maxima and those for the standard clock intervals at several scattered stations. A satisfactory correlation would provide a procedure for adjusting the tabulated amounts to values more nearly representing the true maxima. In the case of some Weather Bureau first-order stations, the maxima for 1, 2, arid 24-hour durations are true maxima, i.e., the interval is actually for the period of maximum precipitation and does not necessarily begin on the hour. True maxima are indicated by the letter "T" in the tabulations.

The dates shown in the tabulations refer to the

beginnings of the periods of maximum precipitation. Hence, the period of maximum precipitation may actually extend into the day following the given date.

Estimates of maximum amounts, indicated by the letter "E" in the tabulations, were required whenever either or both of the following conditions prevailed:

l. Recording gages were not .functioning because of mechanical or electrical failure or because the precipitation was in the form of snow (tippingbucket gages cannot measure ·snowfall rates). In such cases, the precipitation was assumed to have been evenly distributed throughout the period and estimates were obtained by prorating the accumulation. For example, in one case an amount of 5.00 inches was accumulated through a period of 54 hours. It developed that 24/54 of this amount, or 2.22 inches, was higher than any other amount for 24 hours, and this was used as the maximum.

2. Stick measurements sometimes yielded maxima for 6, 12, or 24-hour durations indicating that maxima for shorter durations were too low. For example, a 3-hour observed maximum might

3

be less than half the 6-hour maximum. In such cases, a value of one-half the maximum for the next longer duration was used as an estimate, except that two-thirds of the 3-hour maximum was the estimate for the 2-hour duration. In all but very few cases, this estimated amount is, of course, lower than the true maximum, since precipitation rarely falls at an even rate for other than very short periods.

Since this survey was confined to the period covered by recording gages, the 24-hour maximum amounts listed may be exceeded by 24-hour maxima published in reports2 of other surveys supplementing the recording-gage data with antecedent nonrecording-gage records. Although it would have been an easy matter to use these higher maxima, it was believed preferable to list maxima for all durations for the same period of record.

2. The Weather Bureau's Hydrometeorological Section is now preparing for publication the results of a recently completed survey of maximum 24-hour point precipitation at all stations in the United States for the entire period of record.

sf~~~~~0:~~11[7~·~:~:~~~~~~~~1:1~1[6~·~~~~~~~~~~~~-~~~L5~·~~~~~;,~~~~~~-~-T~~4~~·~~~~~~~:~·~~JITI~3~·~~~~~~~~~~~~-~ll~2:._'~~~~~~~~~~~~-,-~l~ti'::_:_:__=:J19' I I

I BONNERS F1,RRY

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I BEPj.TON DAM ' :

I SANDPOINT EXPERIMENTAL STATION . ., I . 1

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STATION INDEX

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> MOOSE CREEK RANGER S1ATION ( \

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~-~~-{/~--------~L-________ • ____ JL ________ ~--~-------~~-----4--------------1-------------~--~45' wf- J ?

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CASCADE. R~NGER STATION

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DUBOIS AI~PORT

w __ J_ __ __J__ __ ~:-::-:-::-::-::~~--+---rn44° MACKAY RAN~ER STAT.ION CLEMENTSVILLE 4 SE I

• ATLANTA IE

0 SUN VALLEY

Cl BOISE AIRPORT

• I I

• IDAHO FALLS AIRPORT I I 1

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L-~--------------Jl--~e~M~O~U~NT~A:IN~HO=M~E~IiW--------------~--------------~--------~~~~~~B~LA~C~KF~O~~~DA~M~I~~l43 Cl POCATELLO AIRPORT Cl GOODING AIRPORT

Cl BANCROFT

0 BURLEY AIRPORT

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I I I

I ~ .BRIDGE IISW I I I _JL ______________ j_ ______________ ~------------~~-------------+-----------·-M_A_L_~t~D----------~--~~l42

l 116'"

4

Station: ATLANTA 1 E, IDAHO

Drainage basin: BOISE County: ELMORE

Lot. 43° 48•N long. 115° 07'W E lev.(U.) 6000

Period of record: 1941-1949

Mon.th Duration (hours) <

I 2 3 6 12 24 <

Amt. 0.23 0.40 0.55 0.96 1.68 2.45 Jan. Date 21/1943 21/1943 21/1943 21/1943 21/1943 20/1943 . Amt. 0.15a 0.25a 0.35a 0.58 1.11 1.54 Feb; Date 10/1949 10/1949 10/1949 12/1945' 12/1945 13/1945

Men. Amt. 0.23 0.38 0.48 0.50 0.70 1.29 Dote 22/1949 22/1949 22/1949 22/1949 11/1943 11/1943 Amt. 0.16 0.28 0.39 0.47 0.64 1.2~(N Apr. Date 6/1948 11/1944 11/1944 16/1948 ,' 28/1943 10/1941 Amt. 0.20b 0.30 0.40 0.43 0.64 0.10 May Dote 25/1942 16/1945 16/1945 I 16/1945 16/1945 16/1945 Amt. 0.38 0.50 0.61 0.65 0.71 0.71c Jun. Dote 24/1945 24/1945 24/1945 24/1945 24/1945 24/1945 Amt. 0.43 0.62 0. 74 0.74 0.74 0.74 Jul. Dote 30/1946 30/1946 30/1946 30/1946 30/1946 30/1946 Amt. 0.35 0.55 0.64 0.65 o. 74 1.04N Aug. Dote 23/1946 23/1946 11/1941 11/1941 11/1941 11/1941 Amt. 0.22 0.36 0.42 0.51 o. 74 0 .. 80 Sep. Date 11/1941 11/1941 11/1941 25/1948 25/1948 25/1948 Amt. 0.30 0.42 . 0.45 0.56 1.05 1. 73N Oct. Date 10/1943 10/1943 10/1943 16/1947 16/1947 2/1946 Am f. < 0.23 0.35 o.41d 0.63 1..05 1.79N Nov. Dote 4/1944 11/1947 1/1948 1/1948 26/1942 18/1946 Amt. 0.19 0.30E o.45E 0.90Ee 1.45 2.14 Dec. Dote 25/1949 11/1948 11/1948 11/1948 11/1948 2/1941

Amt. 0.43 0.62 0.74 0.96 1.68 2.45 Annual Dote 7/30/1946 7/30/1946 7/30/1946 1/21/1943 1/21/1943 1/20/1943

(a) Also on 2/4/1949 (b) Also on 5/19/1948 (c) Also on 6/15/1942 (d) Also on 11/11/1947 (e) Prorated from. 1.20 in. in 8 hours

5

5 to ti on : BANCROFT, IDAHO

Drainage basin: SNAKE County: BANNOCK

Lot. 4~ 0 43'N Long. 111° 54'W


Month Duration (hour$)

I 2 3 6 12 24

)

0.21 0.28 0.41 0.81 Amt. 0.15 0.30 Jan. Date 22/1943 22/1943 21/1943 20/1943 20/1943 20/1943 ·.

Amt. 0.15 0.29 0.39 0.62 0.79 1.00 Feb. Date 8/1949 8/1949 7/1949 7/1949 7/1949 I 7/1949

Amt. O.lOa 0.18 0.22 0.27 0.38 0.54 Mac. Date 20/1941 26/1945 26/1945 1/1941 I 1/1941 3/1945

Amt. 0.35 0.42 0.43' 0.70 1.05 1.57 Apr. Date 4/1942 4/1942 4/1942 ·. 4/1942 3/1941 3/1941

May . Amt. 0.23 0.28b 0.38 0.52 0.59c 0.71

Date 31/1944 31/1944 8/1946 16/1945 16/1945 11/1947

Jun. Amt. 0.38 0.69 0.75d 1.00 1.00 1.19 Date 3/1941 3/1941 30/1940 30/1940 30/1940 21/1948

Jul. Am f. 0.47 0.80 0.89 0.90 1.13 1.22 Date 21/1943 21/1943 21/1943 21/1943 21/1943 . 21/1943

Amt. 0.44 0.49 0.55 0.61 0.61 0.85 Auo. Dote 1/1945 1/1945 1/1945 1/1945 1/1945 22/1946

Amt. 0.20 0.37 0.50 0.74 1.02 1.92 Sep. Date 18/1940 . 18/1940 18/1940 12/1942 12/1942 17/1947

{,}

Amt. 0.18 0.35 0.40 0.64 0.91 1.21 Oct. Date 17/1949 17/1949 17/1949 1'7/1949 27/1946 2'7/1946

Amt. 0.23 0.29 0.33 0.38 0.54E 1.08 Nov. Date 20/1946 20/1946 20/1946 20/1946 10/1944 10/1944

Amt.. 0.23 0.45 0.45 0.45 0.49 0.69 De.c. Date 24/1940 24/1940 24/1940 24/1940 23/1940 23/1940

Am f. 0.47 0.80 1.00 1.00 1.13 1.92 . Annual Date 7/21/1943 7/21/1943 6/30/1940 6/30/1940 7/21/1943 9/17/1947

(a) Also on -3/3/1945 (b) Also on 5/8/1946 (c) Also on 5/11/1947 (d) Prorated from 1.00 in. in 4 hours

6

.

Station: BENTON DAM, IDAHO

Drainage basin: PEND OREILLE

Lat. 48° 21'N Long. 116° 50'W

County: BONNER

E lev.(ft.) 2640


Month Duration (hours)

I 2 3 6 12 24

Amt. 0.17 0.27 0.35 0.54 0.79 1.00 Jon. Date 13/1945 13/1945 13/1945 13/1945 1/1948 5/1.948

Amt. 0.20 0.30 0.40 0.58 0.98 1.52 Feb. Date 14/1948 14/1948 14/1948 10/1949 10/1949 9/1949

Mar:. Amt. 0.17 0.25a o.30b 0.55 0.94 1.15. Dote 26/1949 17/1945 20/1945 9/1945 9/1945 9/1945

Amt. 0.25 0.40 0.41 0.52 0.78 1.02 Apr. Dote 28/1949 28/1949 28/1949 28/1949 12/1944 10/1946

May Amt. 0.25 0.45c 0.65 0.90 1.12 1.62 Date 12/1948 12/1948 12/1948 12/1948 17/1941 16/1941

Jun. Amt. 0.90 0.95 0.95 0.95 1.36 1.37 Date 9/1948 9/1948 9/1948 9/1948 5/1946 5/1946

Am f. 0.69 0.94 0.94 1.25 1.38 1.38 Jul. Dote 14/1942 18/1948 18/1948 5/1948 5/1948 5/1948

Amt. 0.25 0.37 0.40 0.53 0.82 0.90 Aug. Date 21/1943 21/1943 21/1943 22/1947 22/1947 22/1947

Amt. 0.81 0.85 0.86 0.90 1.14 1. 73 Sep. Dote 9/i942 9/1942 9/1942 9/1942 20/1945 19/1945

Amt. 0.20 0.33 0.45 0.80 1.25 1.65 Oct. Dote 27/1942 4/1949 4/1949 4/1949 4/1949 24/1943

Amt. 0.27 0.47 0.60 0.95 1.36 2.04 Nov. Date 14/1942 14/1942 14/1942 13/1941 13/1941 17/1946

Amt.. 0.27 0.46 0.69 1.19 1.63 1.93 Dec. Dote 23/1949 23/1949 23/1949 23/1949 23/1943 2/1941

Annual Amt. 0.90 0.95 0.95 1.25 1.63 2.04 Dote 6/9/1948 6/9/1948 6/9/1948 7/5/1948 12/23/1949 11/17/194E

(a) Also on 3/26/1949 and 3/30/1947 · (b) Also on 3/17/1945 and 3/8/1949 (c) Also on 5/30/1941 and 3/30/1947 '

7

Station: lUG CBEEK, IDAHO

Drainage basin: SAlMON County~ VALLEY

E tev.(ft.) 5737

Period of record: 1942•1949 (with breaks)

Duration (hours) Month

I 2 3 6 12 24

Amt. 0.13 0.25 0.35 0.67 1.07 1.58 Jan. Date -21/1943 21/1943 21/1943 21/1943 21/1943 21/1943

Amt. 0.10 0.15 0.20 0.36 0.47 0.67 Feb. Date 2/1945 2/1945 2/1945 2/1945 2/1945 7/1945.

Amt. 0.14 I 0.19 0$25 0.30 0.44 I 0.58 Mar. Date 30/1946 I 26/1943 '26/1943 26/1943 13/1943 13/1943

Amt. 0.09 O.l4a. 0.19a 0.30 0.50 0.60 Apr. Date 14/1942 28/1942 28/1942 28/1943 20/1943 20/1943

Amt. O.l5b 0.27 I O)t.O 0.68 0.76 1.13 May Date 3/1943 8/1946 8/1946 8/1946' 7/1946 1/1949

Amt. 0.30 0.55 0.78 0.89 0.92 1.24 Jun. Date 11/1944 11/1944 11/1944 11/1944 11/1944 11/1944

..

Amt. 0.39 0.41 o.42c Ow62 0.75 l.OON Jul. Dote 30/1946 9/1944 . 30/1946 8/1946 8/1946 10/1944

Am f. 0.41 0 .. 44 0.44 o .. 44d o.62Ee 0.75 Aug. Date 28/1946 28/1946 28/1946 28/1946 22/1947 22/1947

Amt. 0.31 0.44 0.45 0.47 0 .. 62 0.68 Sep. Date 1/1944 1/1944 1/1944 1/1944 1/1944 1/1944

Oct. Amt. 0.25 0.35 0.37 0.5lf o. 73 0.97 Dote 10/1943 10/1943 28/1943 28/1943 10/1943 10/1943

Amt. 0.20 0.36 0.47 0.64 0.87 1.06 Nov. Date 24/1942 14/1942 14/1942 14/1942 23/1942 13/1941

Amt. 0.24 0.40 0.59 1.01 1.69 2.59 Dec. Dote 3/1941 2/1941 2/1941 2/1941 2/1941 2/1941

'·

Amt. 0.41 0.55 0.78 1.01 1.69 2.59 Annual Dote 8/28/1946 6/11/1944 6/11/1944 12/2/1941 12/2/1941 12/2/1941

(a) Also on 4/14./1942 (b) Also on 5/22/1946 and 5/26/1946 (c) Also on 7/9/1944 (d) Also on 8/23/1946 and 8/22/1947 (e) Prorated from 0.72 in. in 14 hours (f) Also on 10/10/1943

8

Station: BLACKFOOT DAM, IDAHO

Drainage basin: SNAKE County: CARIBOU

Month I

Amt. 0.14 Jon .. Dote 2/1944

Amt. 0.18 Feb. Date 22/1948

/

Amt. 0.38 Mar. Date 14/1942

Amt. 0.'16 Apr. Date 4/1942

Am f. 0.42 May Dote 27/1947

Jun. Amt. 0.60 Date 5/1945

Amt. 0.23a Jul. Date 21/1945

Amt. 0.70 Aug. Date 23/1946

Amt. 0.48 Sep. Dote 5/1945

Oct Amt. 0.21b Dote 1/1946

Amt. 0.19 Nov. Dote 5/1943

Amt.. 0.14 Dec. Dote 22/1944

Annual Amt. 0.70 Date 8/23/1946

(a). Also on 7/9/1947 (d) Also on 12/4/1941

9460~4 0---51---2

E lev.(ft) 6200

Period of record: 194l-1949 (with breaks)

Duration (hours}

2 3 6 12 24

0.20 0.24 0.46 0.68 0.87 2/1944 2/1944 8/1942 . 7/1942 7/1942

0.32 0.37 0.37 0.52 0.67 22/1948 22/1948 22/1948 4/1942. 21/1948

0.67 0.76 0.91 1.02 1.05 14/1942 14/1942 14/1942 13/1942 13/1942

0.25 0.35 0.64 1.01 1.14 4/1942 4/1942 4/1942 4/1942 4/1942

0.42 0.43 0.65 0.72 1.20 27/1947 16/1945 16/1945 11/1947 11/1947

0.70 0.70 0.71 0.90 1 .. 14 5/1945 5/1945 5/1945 5/1945 21/1948

0.32 0.40 0.40 0.40 0.55 20/1944 21/1945 21/1945 21/1945 4/1949

0.85 0.91 0.92 1.03 1.24 23/1946 23/1946 23/1946 23/1946 22/1946

0•73 0.73 0.88 1.05 1.23 5/1945 5/1945 21/1945 21/1945 20/1945

0.30 o.45 0.65 0.85 1.02 17/1945 17/1949 17/1949 17/1949 17/1949

0.23 0.30 0.49 0.59c 1.04 10/1947 10/1947 18/1942 18/1942 18/1942

0.25 0.29 0.35d 0.50 0.58 . 22/1944 22/1944 22/1944 22/1944 22/1944

o.85 0.91 0.92 1.05 1.24 8/23/1946 8/23/1946 8/23/1946 9/21/1945 8/22/194€

(b) Also on 10/17/1949 (c) Also on 11/17/1942

9

" I

Station: BOISE AlRPORT, IDAHO

Drainage basin: BOISE County: ADA

Lat. 43° 34'N LQng. 116° 13'W E lev.(ft.) 2844

Period" of record: 1940-1949


I 2 3 6 12 24

Amt. 0.14T 0.19'1' 0.25 0.30a. 0.34 0.53T Jan. Date 2/1940 2/1940 2/1940 2/1940 14/1941 2/1940

Amt. 0.19T 0.21T 0.28. 0.48 0.74 o.82T Feb. Dote 21/1946 14/1949 14/1949 .. 14/1949 14/1949 14/1949

Mar. Amt. 0.37T 0.53T 0.57 0.70 0.75 1.12T Dote 31/1940 31/1940 31/1940 31/1940 31/1940 7/1943

Amt. 0.28T 0.40T 0.51 0.77 0. 78 o. 79T Apr. Dote 28/1940 11/1944 11/1944 11/1944 11/1944 11/194"4

May Amt. o.49T o.65T 0.78 0.86 1.12 1.511'

, Dote 22/1942 23/1942 23/1942 23/1942 23/1942 22/1942

Jun. Amt. 0.51T 0.55T 0.62 0.84 1.11 1.45T

1 Date 27/1941 6/1941 6/1941 6/1941 6/1941 6/1941

Am f. 0.15T 0.22T 0.23 0.23 0.23 · 0.23T Jul. Dote 3/1940 3/1940 3/1940 3/1940 3/1940 3/1940

Amt. O.l?T o.21T 0.22· 0.26 0.36 o.40T Aug. Date 11/1941 11/1941 11/1941 11/1941 11/1941 11/1941

Amt. 0.2?T 0.35T 0.42 0.43 0.43 o.43T Sep. Date 9/1940 17/1947 16/1947 16/1947 16/1947 16/1947

Oct. Amt. 0.36T 0.49'1' 0.50 0.53 0.57 0. 7€Jr Dote 5/1949 30/1945 30/1945 24/1940 24/1940 9/1947

Amt. 0.19'1' 0.;23T 0.31 0.36 0.49 o.60T Nov. Dote 18/1942 2/1940 1/1940 23/1949 23/1949 19/1946

Amt.. 0.14T 0.20T 0.26 0.35 0.52 0. 73T Dec. Dote 23/1945 11/1948 11/1948 11/1948 27/1945 10/1948

Annual Amt. 0.51T o.65T 0.78 0.86 1.12 1.51T Dote 6/27/1941 5/23/1942 5/23/1942 5/23/1942 5/23/1942 5/22/194~

(a.) Also on 1/16/1941

10

Station: BOISE AIRPORT, IDAHO*

Drainage basin: BOISE County~ ADA

Lat. 43° 34'N LOng. 116° 13'W E lev.(ft.} 2844

Month I

Jon. Amt. 0.20'1' Dote 15/1927

Amt. 0.30'1' Feb. Dote 27/1902

Amt. 0.44T Mar. Dote 18/1931

Amt. 0.39bT Apr. Dote 25/1900

Amt. 0.71T May Do.te 18/1921

Jun. Amt. o.69T Date 18/1916

Amt. 0.98'1' Jul. Date 30/1912

Amt. 0.32T Aug. Date 28/1922

Amt. 0.39'1' Sep. Dote 27/1927

Amt. o.61T Oct. Date 3/1901

Amt. 0.24T Nov. Date 12/1899

Amt .. 0.24d.T Dec. Date 3/1910

Amt. 0.98T Annual Date 7/30/1912

(a) Also on 1/21/1903 (d) Also on 12/1/1921

Period of record: 1898 .. 1949

Duration (hours}

2 3 6 12 24

0.31T 0.33T 0.45a 0.72 1.36T 15/1927 15/1927 25/1911 21/1903 21/1903

0.43T 0.58 0.63 1.08 1.32T 27/1902 27/1902 27/1902 25/19"§0 1/1916

0.56T 0.77 1.36 1.86 2.46T 29/1904 29/1904 29/1904 29/1904 28/1904

0.54T 0.61 0.94 1.03 1.27T 14/1930 28/1917 27/1917 27/1917 12/1912

0.73T 0.78 o.86c 1.28 1.65T 18/1921 23/1942 23/1942 15/1911 15/1911

0.79'1' 0.79 1.15 1.30 1.5<Jr 18/1916 18/1916 14/1925 14/1925 3/1908

1.16T 1.22 1.26 1.27 . 1.27T 30/1912 30/1912 30/1912 30/1912 30/1912

0.39'1' 9/1930

0.45 9/1930

0.73 9/1930

0.74 9/1930

0.74T 9/1930

0.52'1' 0.59 0.65 , 1.22 1.31T 27/1927 7/1908 7/1908 22/1918 22/1918

0.75T 3/1901

0.75 3/1901

0.98 4/1923

1.32 27/1912

1.53T 27/1912

0.33T 0.39T 0.51 0.68 1.1ar 30/1921 30/1921 12/1899 3/1938 3/1938 .

0.33T 0.38 0.43 0.68 1.19'1' 3/1910 3/1910 13/1917 12/1917 29/1924

1.16T 1.22 1.36 1.86 2.46T 7/30/1912 7/30/1912 3/29/1904 3/29/1904 3/28/190~

(b) Also on 4/14/1930 (c) Also on 5/11/1900 (*) Prior to July 1939 observations were made at

city office, 4 miles DE of Ai;rport

11

S to ti on: BONNERS FRY, IDAHO

Drainage basin: KOOTENAY County: BOUNDARY

E lev.(ft.) 1842

Period of record: 1941-1949 (with breaks)

Month O.urotion (hours)

I 2 3 6 12 24

Amt. 0.15 0.29 0.39 0.51 0.61 0.85a Jan. Date 13/1945 13/1945 13/1945 13/1945 5/1948 19/1943

Amt. 0.15 0.25 0.34 0.48 0.80 1.14 Feb. Date 16/1949 16/1949 16/1949 16/1949 10/1949 21/1949

Amt. 0.13 0.16 0.25 0.41 0.62 0.67 Mar. Date 20/1943 20/1943 10/1945 10/1945 9/1945 9/1945

Amt. 0.14 0.19 0.25 0.39 0.50 0.68 Apr. Date 6/1946 6/1946 6/1946 8/1943 8/1943 e/1943

May Amt. 0.51 0.59 0.62 0.76 1.00 1.17

', Date 25/1942 . 25/1942 25/1942 11/1942 11/1942 11/1942

Jun. Amt. 0.25 0.43 0.51 0.59 0.81 1.04 Date 14/1946 9/1948 9/1948 9/1948 25/1942 25/1942

Amt. 0.22 0.28 0.33 0.46 0. 75 0.87 Jul .. Dote 27/1942 28/1942 28/1942 27/1942 27/1942 27/1948

Amt. 0.18 0.29 0.35 0.49 0.86 0.96 Aug. Date 1/1942 1/1942 1/1942 22/1947 22/1947 22/1947

Amt. 0.28 0.30b 0.40 0.71 1.00 1.04 Sep. Date 9/1942 9/1942 16/1947 16/1947 16/1947 16/1947

Amt. 0.17c 0.32 0.44 0.75 0.97 1.31N Oct. Date 4/1949 4/1949 4/1949 4/1949 18/1947 15/1947

Amt. 0.36 0.43 0.55d 1.06 1.76 2.63 Nov .. Date 2/1942 2/1942 13/1941 18/1946 18/1946 17/1946

Amt .. 0.15 0.26 0.36 0.65 1.00. 1.60 Dec. Dote 2/1941 2/1941 23/1949 2/1941 2/1941 2/1941

Amt. 0.51 0.59 0.62 1.06 1.76 2.63 Annual Date 5/25/1942 5/25/1942 5/25/1942 11/18/1946 11/18/1946 11/17/1946

(a) 25-hour accumulation (b) Also on 9/16/1947 (d) Also on 11/18/1946

(c) Also on 10/4/1947

12

S to ti on : BRIJ)GE 1 Sl(, IDAHO

Drainage basin: SNAKE County: CASSIA

Lat. 42° 08•N Long. 113° 21'W E lev.(U.) 4700


Month ' .. Duration {hours)

I 2 3 6 12 24

Amt 0.15 0.22 0.25 o:31 0.39 0.41 Jan. Date 23/1944 23/1944 23/1944 2/1944 2/1944 2/1944 ,'

Amt. 0.05 0.10 0.12 0.12 0.17E 0.34Es. Feb. Date 21/1944 21/1944 21/1944 : 21/1944 11/1948 11/1948

Amt. 0.12 0.19 0.24 0.27 0.30 0.33 Mar. Date 3/1945 3/1945 3/1945 3/1945 20/1946 3/1945

Amt. 0.13 0.19 0.26 0.42 0.73 0.92 Apr. Dote 24/1944· 8/1944 8/1944 8/1944 8/1944 8/1944

Am f. 0.25b 0.45 0.65 0 .. 79 1.18 1.30 May Date 27/1946 27/1946 27/1946 27/1946 27/1946 27/1946

Jun. Amt. 0.26c 0.35 0.47 0.76 0.79 0.81 Date 12/1944 26/1944 26/1944 26/1944 26/1944 26/1944

Am f. 0.55 0.55 0.55 0.55 0.55d 0.60 Jul. Date 23/1946 23/1946 23/1946 23/1946 23/1946 23/1943

Amt. 0.40 0.62 0.62 0.62 0.88 0.91 Aug. Date 3/1949 19/1945 19/1945 19/1945 19/1945 19/1945

Amt. 0.21 0.40 0.50 0.68 0.75 0.75 Sep. Date 30/1946 30/1946 30/1946 . 30/1946 30/1946 30/1946

Oct. Amt. 0.17 0.25 0.25 0.40 0.44 0.80 Date 16/1945 16/1945 16/1945 16/1945 ,31/1947 18/1949

Amt. 0.14 0.22 0.24 0.,38 0.57 0.83 Nov. Date 2/1947 2/1947 2/1947 11/1944 11/1944 11/1944

A.mt. 0.15 0.18 0.20 0.23 0.31 0.35 Dec. Dote 26/1945 26/1945 26/1945 25/1945 .. 25/1945 25/1945

Amt. 0.55 0.62 0.65 0.79 1.18 1.30 Annual Date 7/23/1946 8/19/1945 5/27/1946 5/27/1946 5/27/1946 5/27/1946

(a) Prorated from 0.43 in. in 31 hours (b) Also on 5/16/1949 (c) Also on 6/1/1947 and 6/7/1947 (d) Also on 7/23/1943

13

S to ti on : BURLEY AIRPORT, IDAHO

Drainage basin: SNAKE County: CASSIA

Lat. 42° 32'N Long. 113° 46•w Etev.(ft.) 4157



I 2 3 6 12 24 ..

Amt. 0.12 0.19 0.23 0.27 0.34 0.58 Jan. Date 25/1942 25/1942 25/1942 25/1942 .·.· 24/1942 14/1949

Amt. 0.13 0.18 0.25 0.39a 0.49b 0.72 Feb. Date 24/1946 2/1945 2/1945 2/1945 6/1949 6/1949

Mar. Amt. 0.20 0.35 0.48 0.53 0.84 1.15 Date 13/1946 13/1946 13/1946 13/1946 13/1946 12/1946

Amt. 0.2lc 0.40 0.47 0.61 0.80 I 0.87 Apr~ Date·.· 4/1942 4/1942 4/1942 4/1942 4/19la-2 3/1942

Amt. 0.40 0.45 0.55 0.69 0.90 .. .1.20N May Date 22/1946 22/1946 22/1946 12/1942 12/1942 12/1942

Amt. 0~35 ... 0.55 0.68 0.96 1.59 1.66N Jun. Date 8/1944 8/1944 8/1944 8/1944 8/1944 8/1944

J~l. Am f. 0.34 0.39 0.39 0.39 0.39 0.39 Date 26/1941 26/1941 26/1941. 26/1941 26/1941 26/1941

Amt. 0.29 0.31 0.33 0.36 0.38 0.41 Auo. Date 23/1949 23/1949 23/1949 23/1949 23/1949 ?.~/1949

Amt. 0.22 0.28 0.3ld I 0.41 0.71 0.71 Sep. Date 18/1948 25/1948 25/1948 29/1940 29/1940 29/1940

Oct. Amt. 0.17 0.32 0.43 0.50 0.60 0.93If Date 1/1946 1/1946 1/1946 1/1946 1/1946 18/1943

Amt. 0.24 0.33 0.44 0.58 o.6lE 1. 2llf Nov. Date 20/1946 10/1944 10/1944 10/1944 12/1944 12/1944

Amt.. 0.13e 0.23 o·.32 0.51 0.68 0.59 Dec. Dote 16/1941 23/1942 1/1947 1/1947 . 1/1947 1/1947 .

Amt. 0.40 Annual Date 5/22/194€.

(a} Also on 2/4/1949 (d) Also on 9/21/194·5

0.68 0.96 1.66N 0.55 6/8/1944 6/8/1944 6/8/1944

1.59 6/8/1944 6/8/1944

(b) 13-hour accumulation (e) Also on 12/24/1942

14

(c) Also on 4/24/1944

.

Station: CASCADE RANGER STATION, IDAHO

Drainage basin: PAYm'E County: VALLEY

Lat. 44 o 31' N Long. 116° 03 'W E lev.(U.) 4740



I 2 3 6 12 24

Amt. 0.59 0.79 0.89 0.95 0.95 1.74 Jan. Date 2/1948 2/1948 2/1948 2/1948 2/1948 1/1948

Amt. 0.25 0.49 0.59 0.80 0.90 1.41 Feb. Date .· 14/1949 14/1949 14/1949 14/1949 14/1949 6/1946

Amt. 0.13 0.21 0.29 0.41 0.51 0.71 Mar. Date 4/1944 4/1944 4/1944 4/1944 4/1944 4/1944

Amt. 0.16a 0.24 0.29 0.38 0.70 0.80 Apr. Date 13/1943 5/1941 5/1941 5/1941 5/1941 5/1941

Amt. 0.51 0.81 1.05 1.30 1.33 1.37 May Date 23/1942 23/1942 23/1942 23/1942 23/1942 23/1942

Jun. Amt. 0.30 0.39 0.49 0.76 1.15 1.33 Date 3/1947 3/1947 5/1945 4/1945 4/1945 4/1945

Amt. 0.33 o.44E 0.65 0.65 0.70 0.70 Jul. Date. 30/1946 30/1946 30/1946 30/1946 30/1946 30/:)46

Amt. 0.11b 0.19 0.24 0.29 0.39 0.43 Aug. Date 7/1945 7/1945 7/1945 7/1945 11/1941 11/1941

Amt. 0.47 o.6o 0.61 0.70 0.75 1.08 Sep. Date 12/1940 12/1940 12/1940 12/1940 12/1940 12/1940

Amt. 0.18c 0.33 0.44 0.83 1.51 2.08 Oct. Date 16/1947 16/1947 16/1947 16/1947 15/1947 15/1947

Amt. 0.21 0.34d 0.43e 0.13 1.20 1.45 Nov. Date 14/1942 14/1942 14/1942 14/1942 14/1942 14/1942

Amt.. 0.20f 0.38 0.55 0.82 1.44 2.55 Dec. Date 2/1941 2/1941 2/1941 2/1941 2/1941 2/1941

Amt. 0.59 0.81 1.05 1.;o 1.51 2.55 Annual Date 1/2/1948 5/23/1942 5/23/1942 5/23/1942 5/15/1947 12/2/1941

(a) Also on 4/13/1944 (b) Also on 8/2/1943 (c) Also on 10/25/1946 (d) Also on 11/3/1945 (e) Also on 11/4/1944 and 11/3/1948 (f)·Alao on 12/24/1942

15

Station: CLARK FORK. 1 ENE, IDAHO

County: BONNER Drainage basin: PEND OREILLE

Lot. 48° 09'N Long. 116° 10''W E ltv.(ft.) 2125


Month Duration (hours}

I 2 3 6 12 24

Amt. 0.20 0.38 0.52 0.8; 1.28 1.55 Jon. Dote 7/1945 7/1945 7/1945 7/1945 6/1945 5/1948

Amt. 0.15a 0.25a 0.35a 0.60 0.93 1.17 Feb. Dote 16/1948 16/1948 16/1948 16/1948 10/1949 21/1949

Mar:. Amt. 0.25 0.36 0.46 0.56 0.90 1 .. 16 Date 26/1943 .. 26/1943 26/1943 26/1943 26/1943 26/1943

Amt. 0.29 0.42 0.50 0.65 0.82 1.11 Apr. Dote 12/1944 12/1944 12/1944 12/1944 30/1943 30/1943

Am f. 0.30 0.40 0.53 0.88 1.15 1.65 May Date 22/1948 22/1948 22/1948 22/1948 22/1948 22/1948

Jun. Amt. o.:;o 0.40 0.55 0.79 1.18 1.39 Date 9/1948 16/1948 16/1948 9/1947 9/1947 8/1947

Am f. 0.39 0.53 0.64 0.70 0.70 1.37N Jul. Dote 18/1948 18/1948 18/1948 18/1948 18/1948 18/1948

Amt. 0 .. 25b 0.35 0.40 0.64 0.91 1.00 Aug. Dote 25/1949 25/1949 25/1949 I 22/1947 22/1947 22/1947

Amt. 0.46 0.46 0.55 0.85 1.09 1.57 Sep. Date 21/1944 21/1944 4/1945 4/1945 4/1945 4/1945

Oct. Amt. 0.35 0.61 0.75 1.06 1.61 1 .. 85N Dote 28/1949 28/1949 28/1949 ·28/1949 31/1942 31/1942

Amt. 0.35 0.51 0.66 1.20 2.0:; :;.02N Ne>v. Dote 27/1949 27/1949 · .. 23/1942 23/1942 17/1946 17/1946

Amt.. 0.22 0.36 0.44 0.84 1.1; 1.71 Dec. Dote 2/1941 2/1941 2/1941 2/1941 2/1941 2/1941

.

Amt. 0.46 0.61 0.75 1.20 2.0:; 3.02N Annual Date 9/21/1944 10/28/1949 10/28/1949 11/23/1942 11/17/1946 11/17/194t

(a) Also on 2/10/1949 {b) Also on 8/9/1947

16

Station: CLARKIA RANGER STATION, IDAHO

Drainage basin: ST. JOE County: SHOSHONE

Lot. 47° ootN Long. 116° 15'W E lev.(ft.} 2800

Period of record: 1941.;;.1949


I 2 3 6 12 24

Amt. 0.16 0.28 0.38 0.68 0.96 1.40 Jan. Date 25/1947 25/1947 25/1947 25/1947 25/1947 6/1948

Amt. 0.19 0.33 0.43 0.66 1.19 2.00 Feb. Date 5/1942 10/1949 10/1949 25/1948 25/1948 9/1949

Mar. Amt. 0.24 0.30 0.38 0.60 1.17 1.71 Date 29/1948 }0/1947 30/1947 9/1942 9/1942 8/1941

Amt. 0.18 0.33 0.40 0.60 0.91 1.05 Apr. Date 28/1949 28/1949 28/1949 28/1949 7/1945 7/1945

May Amt. 0.30 0.35a 0.45 0.67 1.08 1.24 Date 26/1946 26/1946 28/1948 23/1948 28/1948 7/1948

Jun. Amt. 0.61 o. 73 0.81 0.91 1 .. 01 ' 1.06 Date 5/1946 5/1946 5/1946 5/1946 5/1946 5/1946

Amt. 0.24 0.36 0.47 . 0.83 1.34 1.84 Jul. Date 16/1942 20/1948 28/1948 28/1948 19/1948 27/1948

Amt. 0.22 0.25b 0.42 0.54 0.62 0.70 Aug. Date 21/1943 21/1943 21/1943 13/1944 ' 13/1944 13/1944

Amt. 0.28 0.43 0.65 0.97 1.41 1.43 Sep. Date 15/1949 15/1949 15/1949 15/1949 15/1949 -15/1949

Oct. Amt. 0.23 0.30 0.40 0. 72. 1.10 1.48 Date 4/1948 3/1941 31/1942 31/1942 31/1942 30/1942

Amt. 0.29 0.44 0.53 0.66 1.08 1.69 No.v. Date 25/1947 . 13/1941 13/1941 13/1941 25/1947 26/1945

Amt 0.21 0.31 0.45 0.75 1~24 1.70 Dec~ Date 14/1946 14/1946 14/1946 14/1946 14/1946 27/1945

..

Annual Amt. 0.61 0. 73 0.81 0.97 1.41 2.00 Date 6/5/1946 6/5/1946 6/5/1946 9/15/1949 9/15/1949 2/9/1949

(a) Also on 5/22/1948 (b) Also on 8/13/1944

fl46094 0--51------3 17

S to ti on : CLIMENTSVILLE 4 SE, IDAHO

Drainage basin: SNAKE County: TETON

Lot. 43° 51'N Long. 111° 16•w E lev.{ft.) 5904


.. . (hours) . Ourot•on

Month I 2 3 6 12 24

Amt. 0.15 0.20 0.23 0.25 0.,36 0.45 Jon. Date 24/1946 24/1946 24/1946 24/1946 5/1944 24/1946

Amt. 0.09a 0.14 0.18 0.28 0.39 0.54Eb Feb. Date 9/1948 9/1948 9/1948 9/1948 2/1943 21/1948

Amt. 0.16 0.21· . 0.26 0.29 0.30 0.3'7 Mar:. Dote 19/1944 8/1943 8/1943 8/1943 J/1943 7/1943

Amt. 0.18 0.22 0.30 o.;5 0.42 0.56 Apr. Date 24/1945 28/1943 28/1942 28/1942 28/1942 4/1941

Amt. 0.45c 0.53 0.54 0.79 0.89 1.13 May Date 16/1949 27/1949 27/1949 . 16/1949 16/1949 16/1949

Amt. 0.28 0.40 0.57 0.87 1.56 2.00 Jun. Date 30/1941 27/1944 27/1944 27/1944 1 27/1944 27/1944

Amt. 0.43 0.50 0.56 0.56 0.56d 0.63 Jul. Date 2/1943 .·· 9/1944 9/1944 9/1944 9/1944 9/1944

Amt. 0.70 0.82 0.84 1.18 1.20 1.28 Aug. Date 9/1941 9/1941 9/1941 9/1941 9/1941 9/1941

Amt. 0.24 0.43 0.53e 0.67 0.90 I 1:.10 Sep. Dote 25/1947 25/1947 25/1947 .27/1940 17/1947 21/1945

Amt. 0.18f 0~33 0.43 0.50 0.61 0.76 Oct. Date 26/1946 1'7/1945 17/1945 17/1949 17/1949 27/1946

Amt. 0.20 0.24 0.27 0.36 0.53 o.85h Nov. Dote 24/1942 4/1944 4/1944 4/1944 •. 2/1947 ~0-1/1947

Am f.. 0.15 0.30 0.46g 0.65 0.78 o.85h Dec. Date 1/1947 1/1947 1/1947 1/1947 1/1947 ~0-1/1947

•.

' •·

Amt. 0.70 0.82 0.84 1.18 1.56 2.00 Annual Date 8/9/1941 8/9/1941 8/9/1941 8/9/1941 6/27/1944 6/27/1944

_:_

(a} Also on 2/8/1945 (b) Prorated from 0.59 in.· in 26 hours (c) Also on 5/27/1949 (d) Also on 7/2/1948 (e) Also on 9/28/1940 (f) Also on 10/17/1945 (g) Also on 12/13/1945 (h) Began 11/30/1947

18

5 to ti on: COEUR D'ALENE AmPORT, IDAHO

Drainage basin: KOOTENAY County: KOOTENAY

Lat. 47° 46•N Long. 116° 49'W E tev.(ft.) 2273

Period of record~ 1940~1949 (with breaks)


I 2 3 6 12 24

Amt. 0.24 0.35 0.45 0.67 1.07 1.47 Jan. Date 25/1947 13/1945 13/1945 6/1948 6/1948 6/1948

Amt. 0.21 0.35 0.48 0.61 0.95 1.15 Feb. Date 22/1948 27/1946 27/1946 27/1946 7/1945 25/1948

Mac. Amt. 0.17 . 0.29 0.35 0.54 0.63 1.05 Date 30/1947 5/1946 26/1943 26/1943 12/1945 11/1945

Amt. 0.25 0.30 0.36 0.55 0.71 0.93 Apr. Dote 19/1947 ~2/1944 12/1944 11/1944 28/1946 28/1946

May Amt. 0.31 0.54 o.68E 1.35 1.87 2.10 Date 30/1941 30/1941 7/1948 7/19~ 7/1948 7/1948

Jun. Amt. 0.53 0.60 0.63 0.82 0.95 0.96 Date 16/1948 16/1948 16/1948 6/1947 6/1947 16/1948

Amt. 0.39 0.40 0.47 0.59 o. 72 1.04 Jul. Date 11/1941 .. 11/1941 5/1948 5/1948 5/1948 27/1948

Amt. 1.09 1.09 1.14 1.19 1.19 1.19 Aug. Date 1/1948 1/1948 1/1948 1/1948 1/1948 1/1948

Amt. 0.30 0.36 0.55 o.B4 1.01 1.15 Sep. Dote 7/1947 20/1945 20/1945 20/1945 20/1945 17/1941

Oct. Amt. 0.35 0.54 0.75 1.21 1.44·. 1.53 Date 16/1947 16/1947 16/1947 16/1947 15/194>7 15/1947

Amt. 0.17 0.30 0.37a 0.64 0.95 1.32 Nov. Dote 27/1945 23/1942 23/1942 14/1942 26/1945 17/1946

Amt.. 0.16 0.28 0.40 0.67 1.01 1.28 Dec. Date 28/1945 28/1945 28/1945 28/1945 28/1945 27/1945

Annual Amt. 1.09 1.09 L.l4 1.35 1.87 2.10 Date 8/1/1948 8/1/1948 8/1/1948 5/7/1948 5/7/1948 5/7/1948

(a) Also on 11/14/1941

19

Station: COTTONWOOD 2 SW, IDAHO

Drainage basin: CLEABWATER

Lot. 46° 03'N Long. 116° 21'W

County·: IDAHO

E I ev.(ft.) 3600



I 2 3 6 12 24

Amt. . 0.10 0.15 0.21 0.32 0.46 0.62 Jan. Date 24/1947 24/1947 1···. 6/1948 6/1948 6/1948 6/1948

Amt. 0.10 0.17 0.25 0.46 0.71 1.03 Feb. Date 26/1944 18/1949 18/1949 18/1949 2/1946 18/1949

Amt. 0.19 0.29a 0.35 0.52 0.67 0.81 Mar. Date 29/1947 29/1943 .. 29/1943 I 29/1943 23/1948 23/1948

Amt. 0.21 0.36 0~48 0.60 0.75 0.84 Apr. Date 4/1944 4/1944 19/1949 I 29/1946 19/1949 30/1941

Amt. 0.43b 0.49 0.62 1.03 1.54 1.66 May Date 1/1941 22/1942 ?3/1948 23/1948 23/1948 22/1948

Amt. 0.62 0.65 0.65· 0.67 0.69 0.97 Jun. Date 21/l945 21/1945 21/1945 21/1943 IS/1943 6/1941

Amt. o.42c 0·57 0.59 0.74 0.85 0.97 Jul. Date 10/1942 10/1942 3/1943 3/1943 3/1943 3/1943

Amt. 1.50 2.07 2.07 2 .. 10 2.12 2.12 Aug. Date 1/1948 1/1948 1/1948 1/1948 1/1948 1/1948

~

Amt. 0.37 0.56 0.66 0.81 1.33 1.45 Sep. Date 15/1946 9/1942 9/1942 9/1942 9/1942 9/1942

Amt. 0.20 0.33 0;.44 0.75 p 1.12 1.67 Oct. Dote 3/1940 3/1940 2/1940 I 2/1940 2/1940 31/1942

Amt . 0.26 0.34 0.40 0.52 0.95d 1.66d . Nov. Dote 27/1949 . 27/1949 27/1949 27/1949 1/1942 1/1942

Amt .. 0.15e 0.29 0.43 0.55 0.93 1.25 Dec. Dote 28/1945 27/1942 27/1942 11/1946 11/1946 10/1946

Amt. 1.50 2c07 2.07 2.10 2.12 2.12 Annual Dote 8/1/1948 8/1/1948 8/1/1948 8/1/1948 8/1/1948. 8/1/1948

(a) Also on 3/29/1946 (b) Also on 5/15/1949 (d) Began 10/31/1942 (e) Also on 12/28/1942

(c) Also on 7/15/1942

20

Station: COUNCIL 2 NNE, IDAHO

Drainage basin: SNAKE County: ADAMS

Elev.(ft.) 3150

Period .of record: 1940-1949 (with breaks)


I 2 3 6 .. 12 .. 24

Amt. 0.20a 0.38 0.50 0.89 1.41 2.29 Ja-n. Dote 20/1943 20/1943 20/1943 20/1943 20/1943 20/1943

Amt. 0.25b 0.44 0.57 0.88 1.11 1.98 Feb. Dote 8/1945 8/1945 8/1945 8/1945 7/1945 7/1945

Mar. Amt. 0.24 0.35 0.38o 0.63 0.95 1.77N Dote 30/1947 29/1946 9/1947 9/1947 9/1947 26/1940

Amt. 0.32 0.48 0.93 0.87 0.98 1.00 Apr. Dote 29/1946 8/1943 8/1943 8/1943 8/1943 8/1948

Amt. 0.34 0.47 0.69 0.98 1.16 1-57 May Date 10/1945 10/1945 31/1943 31/1943 31/1943 31/1943

Amt. 0.36 0.69 0.85 1.17 1.26 l.57d Jun. Dote 19/1941 19/1941 3/1948 3/1948 3/1948 1/1943

Amt. 0.3l 0.39 0.39 0.45 0.50e 0.64 Jul. Date 13/1945 13/1945 13/1945 8/1946 8/1946 0 27/1941

Amt. 0.51 0.57 0.71 0.82 0.82 0.90N Au9. Date 23/1946 23/1946 23/1946 23/1946 23/1946 23/1946

Amt. 0.36 0.50 0.51 0~69 0.97 1.22 Sep. Date 21/1945 5/1946 l/1944 1/1944 21/1945 21/1945

Amt. 0.37 0.65 0.71 0.88 1.12 1.59 Oct. Dote ·16/1947 16/1947. 16/1947 16/1947 15/1947 15/1947

Amt. 0.35 0.53 o. 72 1.06 1.40 2.00 Nov. Dote 1/1948 1/1948 1/19.48 1/1948 i/1948· 18/1946

Amt.. 0.16 I 0.29 0.36 . 0.66 1.18 1.73 Dec. Dote 30/1942 30/1942 8/1942. 8/1942 . 8/1942 7/1942

Annual Amt. 0.51 0.69 0.85 1.17 1.41 2.29 Dote 8/2·3/1946 6/19/1941 6/3/1948 6/3/1948 1/20/1943 1/20/1943

(a) Also on 1/21/1943 (b) Also on 2/6/1946 (d) Began 5/31/1943 (e.) Also on 7/27/1941

(o) Also on 3/10/1947 .

21

Station: CRAIGMONT, IDAHO

County: LEWIS Drainage basin: CLEARWATER

LOt. 46° 14'N Long. 116° 28'W E lev.(ft.) 2950

Month

Jan. Amt. 0.09a Date 6/1948

Feb. Amt. 0.07 Date 24/1946

Mar: Amt. 0.16 Date 30/1947

Apr. Amt. o·.15b Date 12/1946

May Amt. 0.55 Date 25/1946

Jun. Amt. 0. 92 Date 8/1948

Amt. 0.12


·. Duration (hours)

2 3 6

0.18 0.26 6/1948 6/1948

0.11 0.13 15/1948 l5/1948

0.20 .·· 0.22 1/1948 23/1948

0.28 0.30c 12/1946 12/1946

0.63 . o. 78 22/1948 22/1948

0.93 0.93 8/1948 8/1948

0.44 6/1948

0.20 15/1949

0.38 23/1948

0.40 30/1945

1.15 22/1948

0.93 8/1948

12

0.58 6/1948

0.23 2/1946

0.49 23/1948

0.43 30/1945

1.87 22/1948

1.02 5/1947

24

0.86 6/1948

0.31 2/1946

0.74 23/1948

0.63 29/1946

1.89 22/1948

Aug: oa te 25/1945 0.20d 0.20d i' 0.20d 0.20d" 0.2?

11/1948 11/1948 11/1948 11/1948 . . 25/1945

Sep.

Oct.

Amt. Date

Amt. Date

0.25 16/1947

·0.47 1E)/1947

0.20 0.27 ~/19481. 7/1947

0.57 16/1947

0.32 ·7/1941

Amt. 0.15 0.20 0.25 Nov. Dote 23/1946 23/1946 23/1946

Amt. Dec. Date

Annual Amt. Date

0.15e 0.25 1

Q.33 11/1946 11/1946 .ll/1946

0.69 16/1947

0.45 0.61 7/1947 I 7/1947

0.93 15/1949

0.61 7/1947

0.27 0.37 0.51 8/1947 23/1949 23/1949

0.50 0.84 11/1946. : 11/1946

1.13 11/1946

(a) Also on 1/12/1947 (c) .Also on 4/30/1945

(b) Also. on 4/8/194 7. and 4/29/1948 (d) Also on 8/19/1948 (e) Also on 12/28/1945

22

Station: DEADWOOD DAM, IDAHO

Drainage basin: PAYErTE County: VALLEY

Lot. 44 o 17'N Long.· 115 ° .38'W E lev.(f.t) 5.375



tl . 2 3 6 12 24

Amt. 0.16 0.25 0 • .33 0.52 1.01E 2.01N Jan. Date 6/1948 6/1948 6/1948 6/1948 20/194.3 20/1943

Amt. 0.30 0.40E o.6oa 1.00 1.50 2.00 Feb. Dote 2/1945 10/1949 10/1949 10/1949 10/1949 10/1949

Amt. 0.22 0.,38 0.53 0.80 1.18 1.43 Mar. Dote 4/1944 4/1944 4/1944 4/1944 4/1944 3/1943

Amt. 0.24 0.39 0.52 0.65 0.94 1.0,3 Apr. Date 28/1943 28/1943 28/1943 28/1943 28/1943 28/1943

Amt. 0.26 0.48 0.68 0.82 1.03 1.07 May Dote 13/1947 16/1945 16/1945 16/1945 16/1945 16/1945

Amt. 0.25 0.35 0.47 . 0.52· 0.55 0.86 Jun. Date 1/1943 1/194.3 1/194.3 1/1943 1/194.3 10/1944

Amt. 0.18 0.18 0.18 0.18 0.24' 0.,36 Jul. Date 1/1942 1/1942 1/1942 1/1942 t• 3/194.3 9/1946

Amt. 0.27 0.38 0.40 0.40 0.40 0.40 Aug. Date 2/194.3 2/194.3 2/1943 2/1943 2/1943 . 2/1943

Amt. 0.21 0.25b 0.32 0.56 0.69 0.73.. Sep. Date 28/1949 28/1949 28/1949 22/19l.ta 22/1948 22/1948

Amt. 0.25 0.40 0.52 1.00 1.80 2.56N Oct. Date 16/1947 16/1947 16/1947 15/1947 I 15/1947 15/1947

Amt. 0.25 0.33 o.4lc 0. 75 1.45E 2.90d Nov. Date 4/1944 3/1941 3/1941 27/1942 27/1942 27/1942

Amt.. 0.22 0.42 0.63 1.17 2.l9 3.07N Dec. Dote 2/1941 2/1941 2/1941 2/1941 2/1941 I 2/1941

Amt. 0.30 0.48 0.68 1.17 2.19 3.07N Annual Dote 2/2/1945 5/16/1945 ;/16/1945 12/2/1941 12/2/1941·· 12/2/1941

(a) Prorated from 0.80 in. in 4 hours {b) Also on 9/22/1948 (c) Also on 11/4/1944 (d) Also on 11/18/1946

23

Station: DE9EPriON CREEK, IDAHO

Drainage basin: KOOTENAY County: KOOTENAY

E lev.(U.} 3000

Period of record: 1941-1942; 1944-1949

'


ll 2 3 6 12 24 .. .

Amt. .•

Jon. Date 110 RECO:F D

Amt. Feb. Date NO RECO:F D

Mar:. Amt.

RECO:F Date NO D .·

Amt. Apr. Dote NO

1

RECO:E D

May Amt.

RECOE Dote N 0 D

Jun. Amt. 0.94 0.94 0.94 0.95 0.95 1.40 Dote 9/1948 9/1948 9/1948 9/1948 9/1948 8/1947

Amt. 0.35 I· 0.54 0.65 1.08 1.43 1.64 Jul. Dote 24/1949 19/1948 19/1948 19/1948 19/1948 19/1948

Amt. 0.35 0.35 0.35a 0-53 0.81 0.94 Aug. Dote ~/1949 3/1949 3/1949 23/1949 23/1949 23/1949

Amt. I 0.31 0.53 0.74 1.22 2.14 2.32 Sep. Dote 15/1949 15/1949 20/1945 20/1945 20/1945 20/1945

Oct Amt. 0.40 0.56 0.71 1.05 1.55 ' 2.62 Dote 4/1948 3/1941 20/1946 20/1946 4/1949 20/1946

Nov. i Amt. N 0 RECOR D

Dote

Am f.. N 0 RECOR D Dec. Dote

Amt. 0.94 0.94 0.94 1~22 2.14 2.62 Annual Dote 6/9/1948 6/9/1948 6/9/1948 9/20/1945 9/20/1945 .. 0/20/1946

(a) Also on 8/23/1949

24

Station: DUBOIS AIRPORT, IDAHO

Drainage basin: LOST County: CLABK

Lot. 44 o 10'N Long. 112° 13 •w E lev.(ft.) 5122

Month I

Amt. 0.11 Jon. Dote 23/1943 ..

Amt. 0.19 Feb. Dote 8/1944

Amt. 0.20 Mot. Dote 20/1946

Amt. 0.25 Apr. Dote 5/1944

May Amt. 0.42 Dote 4/1943

Amt. 0.59 Jun. Dote 26/1944

Amt. 0.19b Jul. Dote 19/1944

·. Amt. 0.83 Aug. Dote 19/1945

Amt. 0.21 Sep. Dote 29/1944

Oct. Amt. 0.13d Dote 4/1941

Amt. 0.19 Nov. Dote 4/1944

Amt 0.12 Dec. Dote 5/1946

Amt. o.83 Annual Dote 8/19/1945

(a} Also on 5/17/1944 (d) Also on 10/8/1949

I


Duration (hours)

2 3 6 12 24

0.19 0.26 0.43 0.60 0.90 23/1943 23/1943 27/1942 27/1942· 27/1942

0.29 0.30 0.50 0.80 1.00 8/1944 8/1944 4/1949 4/1949 4/1949

0.28 0.33 0.43 0.52 0.73 20/1946 20/1946 20/1946 20/1946 4/1945

0.35 0.35 0.42 0.59 0.62 5/1944 5/1944 25/1944 24/1944 24/1944

0.51 0.52 o.;2a 0.83 1.05 4/1943 4/1943 4/1943 17/1944 20/1949

0.80 0.95 1.12 1.55 2.19 26/1944 26/1944 26/1944 26/1944 26/1944

0.31 0.45 0.50 0.50 0.50c 19/1944 19/1944 19/1944 19/1944 19/1944

1.10 1.31 1.49 1.64 2.05 19/1945 19/1945 19/1945 19/1945 19/1945

0.35E 0.52E . 1.03 1.36 . 1.39 20/1940 20/1940 20/1940 19/1940 19/1940

0.23 0.31d 0.45 0.52 0.67 4/1941 4/1941 4/1941 4/1941 7/1949

0.32 0.36 0.43 0.64 1.03 4/1944 4/1944 12/1944 12/1944 12/1944

0.15e 0.20 0.30 0.48 0.52 5/1946 2/1941 2/1941 2/1941 2/1941

1.10 1.31 1.49 1.64 2.19 • 8/19/1945 8/19/1945 8/19/1945 8/19/1945 6/26/1944

(b) Also on 7/22/1944 (e) Also on 12/2/1941

{c) Also on 7/19/1941

25

Station: GOODING AIRPORT, IDAHO

Drainage basin: SNAKE County: GOODING

Lot. 42° 55'N Long. 114 o 46•w E lev.(ft) 3696



ll 2 3 6 12 24

Jon. Amt. 0.13 0.22 0.31 0.54 o. 73 0.75 Dote .23/1944 23/1944 23/1944 22/1946 22/1946 22/1946

Amt. 0.10a 0.18 0.25 0.46 0.60 0.65 Feb. Dote 12/1945 12/1945 12/1945 12/1945 12/1945 1/1945

Mar. Amt. 0.15 0.23 0.25 0.42 0.68 0.99 Dote 13/1946 13/1946 13/1946 13/1946 ·. 7/1943 7/1943

Amt. 0.14 0.20 0.29 0.47 0.69 0.79 Apr. Dote 27/1942 19/1944 19/1944 19/1944 19/1944 19/1944

May Amt. 0.45 o.45b 0.52 0.59 0.63 0.63 Date 29/1949 27/1947 27/1947 27/1947 27/1947 27/1947

Jun. Amt. 0.42 0.42c 0.46 0.57 0.77 1.25N Date 1/1943 1/1943 1/1943 8/1944 8/1944 1/1943

Jul. Am f. 0.35 0.35 0.35 0.35 0.35 0.37 Dote 2/1948 2/1948 2/1948 2/1948. 2/1948 2/1948

Amt. 0.16 0.21 0.23 0.34 0.39 0.39 Aug. Date 3/1947 3/1947 23/1946 23/1946 23/1946 23/1946

Amt. 0.18 0.28 0.28 0.31 . 0.40 0.46 Sep. Dote 28/1949 18/1948 18/1948 18/1948 18/1948 18/1948

Oct. Amt. 0.33 0.48 0.56 0.83 0.95 1.41N Dote 1/1946 1/1946 1/1946 1/1946 1/1946 1/1946

Amt. 0.17 0.19 0.26 0.38 0.53 0.87 Nov. Date 4/1944 17/1942 17/1942 17/1942 26/1942 26/1942

Am f.. 0.18 0.23 0.29 0.40 0.69 0.82 Dec. ' Dote 5/1946 5/1946 27/1945 27/1945 27/1945 27/1945

Annual Amt. 0.45 . 0.48 0.56 0.83 0.95 1.41N Dote 5/29/1949 10/1/1946 10/1/1946 10/1/1946 10/1/1946 10/l/1946

(a)A1so on 2/4/1943; 2/21/1944; 2/1/1945; 2/24/1946, and 2/12/1947 (b) Also on 5/29/1949 (c) A1.eo on 6/8/1944

26

Station: IDAHO FALLS AIRPORT, IDAHO

Drainage basin: SNAKE County: BONNEVILLE

Lat. 4}0 :3l'N Long. 112° 04•W E lev.(ft.) 47:30



ll 2 3 6 12 24

Amt. 0~15 0.25 0.:38 0.6:3 o. 75 1.:30N Jon. Dote 21/194:3 21/194:3 21/194:3 21/194:3 21/194:3 14/1949 Amt. 0.15 0.18 0.23 0.33 0.44E 0.88N Feb. Date 22/1948 2/1945 2/1945 2/1945 11/1949 11/1949

Amt. 0.14 0.27 0-33 0.43 0.63 0.71 Mot. Date 20/1941 20/1941 20/1941 20/1941 20/1941 13/1946 I Amt. 0.49 0~49 0.49 o.49 0.49 0.49 Apr. Dote 30/1941 30/1941 30/1941 :30/1941 30/1941 30/1941

Amt. 0.32 .0.37 0.45 0.60 0.80 0.93 May Date 26/1941 26/1941 11/1947 11/1947 28/1946 16/1949

Jun. Amt. 0.40 0.50 0.69 0.92 1.20 1.44 Date 19/1948 26/1944 8/1949 26/1944 26/1944 26/1944

Amt. 0.33 0.63 0.64 0.64 0.64 '0.64 Jul. Date 25/1941 25/1941 25/1941 25/1941 25/1941 25/1941 Amt. 0.42 0.62 0.63 0.64 0.66 0.71 Aug. Dote 9/1941 9/1941 9/1941 9/1941 9/1941 8/1941 Amt. 0.25 0.35 0.40 0.71 1.08 1.20 Sep. Date 17/1947 17/1947 12/1942 3/1940 17/1947 17/1947

Oct. Amt. 0.19 0.22a 0.27 0.41 0.46 0.69 Date 28/1941 28/1941 22/1949 22/1949 22/1949 1/1946

Amt. 0.14b 0.20 0.32 0.58 1.03N 1.19N Nov. Date 10/1949 9/1949 9/1949 18/1942 18/1942 18/1942

Amt.. 0.18 0.24 0.30 0.42 0.63 0.93 Dec. Date 6/1946 3/1941 3/1941 2/1941 3/1941 2/1941

Amt. 0.49 0.63 0.69 0.92 1.20 1.44 Annual Date 4/30/1941 7/25/1941 6/8/19~9 6/26/1944 6/26/1944 6/26/1944

(a) Also qn 10/27/19'43 (b) Also on 11/4/194 7

27

Station: LEADORE, IDAHO

Drainage basin: SALMON County: LEMHI

Lat. 44° 41'N Long. 113° 22'W E lev.(ft.) 6100

Period of record:· 1941-1949 (with breaks)

Duration (hours) Month

12 .• •I 2 3 6 24

Amt. 0.07 .0.13 0.17 0.27 0.35 0.36 Jcin. Date 24/1946 24/1946 24/1946 24/1946 24/1946 24/1946

Amt. 0.16 0.17 ' 0.17 0.18 0.21 0.22 Feb. Dote 6/1946 6/1946 6/1946 6/1946 8/1944 8/1944

Amt. 0.20 0.29 0-35 0.35 0.35 0.35 Mar. Date 29/1947 29/1947 29/1947 29/1947 29/1947 29/1947

Amt. 0.12a 0.15b 0.20 0.30 0.45 0.46 Apr~ Date 24/1945 17/1942 28/1942 5/1942 4/1942 4/1942

Amt. 0.32 0.54 0.65 0.79 1.29 1.69 May Dote 27/1946 27/1946 21/1946 28/1946 27/1946 27/1946

Amt. 0.25 0.45 0.48 0.70 1.26 1.45 Jun. Dote 26/1944 26/1944 26/1944 26/1944 26/1944 26/1944 ..

Amt. 0.39 0.48 0.49 0.65 0.65 0.82 Jul. Date 21/1943 21/1943 21/1943 5/1949 5/1949 21/1943

Amt. 0.85 1.43 ' 1.48 1.49 1.59 1.60 Aug. Date 21/1947 21/1947 121/1947 21/1947 21/1947 21/1947

Amt. 0.24 0.43 0.52 0.74 0.85 1.16 Sep. Date 25/1948 25/1948 25/1948 25/1948 25/1948 25/1948

Amt. 0.27 0.33 0.40 0.66 0.90 1.12 Oct. Date 1/1946 1/1946 1/1946 1/1946 . 1/1946 1/1946

Amt. 0.11 0.18 0.20 0.23 0.26 0.27 Nov. Date 20/1946 20/1946 20/1946 20/1946 20/1946 12/1944

Amt. 0.15 0.15c 0.19 0.32 0.45 0.52 Dec. Dote 16/1949 16/1949 3/1948 3/1948 3/1948 3/1948

Amt. 0.85 1.43 1.48 1.49 1.59 1.69 Annual Date 8/21/1947 8/21/1947 8/21/1947 8/21/1947 8/21/1947 5/27/1946

{a) Also on 4/10/1948 and 4/29/1949 (b) Aleo on 4/28/1942 and 4/10/1948 (c) Also on 12/3/1948 and 4/29/1949

28

Station: LEWISTON, IDAliO

Drainage basin: CLEARWATER County: NEZ PERCE

Lat. 46° 25'N Long. 117° 02'W E lev.(ft.} 738



I 2 3 6 12 24

Amt. 0.20T 0.30T 0.38 0.53 0.84 1.36T Jon. Dote 5/1926 6/1923 6/1923 25/1920 25/1920 25/19'20

Amt. 0.22T 0.35T 0.42 0.61 0.64 0.97T_ Feb. Date 1/1924 23/1933 23/1933 23/1933 23/1933 22/1912

Amt. 0.2gr 0.34T 0.48 0.75 1.26 . 2 .33T Mar:. Date 19/1910 31/1928 31/1931 30/1931 31/1931 31/1931

Amt. 0.43T 0.52T 0.55T 0.62 0.62 o.66T Apr. Dote 2/1915 2/1915 2/1915 2/1915 . 2/1915 29/1915

Amt. o.45T 0.52T 0.60 0.80 0 .. 90 1.12T M.ay Date 22/1914 3/1932 3/1932 3/1932 18/1903 20/1912

Jun. Amt. o.62T 0.66T 0.82 1.03 1.10 1.16T Date 8/1929 8/1927 8/1927 8/1927 8/1927 10/1915

Am f. o~34T 0.39T 0.51T 0.93 1.70 1.87T Jul. Date 2/1916 2/1916 27/1909 27/1909 27/1909 27/1909

Amt. 1.081' 1.11T 1.11 1.25 1.27 1.45T Aug. Dote 24/1907 24/1907 .. 24/1907 24/1907 24/1907 24/1907

Amt. 0.38T 0.44T 0.44 0.83 1.31 1.54T Sep. Date 1/1907 1/1907 1/1907 23/1917 23/1917 26/1905

Oct. Amt. 0.52T 0.53T 0.58T 0.65 0.91 0.9laT Dote 13/1918 13/1918 2/1915 2/1915 25/19'26 25/1926

Amt. 0.21T 0.32T 0.43 o. 73 0.92 1.27T Nov. Date 15/1932 15/1932 15/1926 15/1926 13/1906 4/1927

Amt .. 0.16T 0.29T 0.40 0.74 0.99 l.06T Dec. Dote 28/1923 28/1923 28/1923 28/1923 28/1923 19/1906

Amt. 1.08T 1.11T 1.11 1.25 1.70 ' 2.33T Annual Date 8/24/1907. 8/24/1907 8/24/1907 8/24/1907 7/27/1909 3/31/1931

(a) Also. on 10/2/1915

29

Station: MACKAY RANGER STATION, IDAHO

Drainage basin:· LOST County: CUSTER

Lot. 43° 55'N Long. 113° 17'W Elev.(ft.) 5900



I 2 3 6 12 24

Amt. 0.09a 0.15 0.21 0.29E 0.57E 1.14N Jon. Date 23/1943 23/1943 20/1943 21/1943 21/1943 21/1,:943

Amt. 0.17 0.20 0.22 0.25 0.37 0.48 Feb. Date 8/1944 8/1944 8/1944 8/1944 2/1945 1/1945

Mar. Amt. O.l3b 0.20 0.22 0.28 0.52 0.71 Date 19/1946 20/1946 20/1946 20/1946 19/1946 19/1946

Amt. 0.09 0.15 0.20 0.28 0.44 0.54 Apr. Date 11/1944 11/1944 11/1944 11/1944 11/1944. 29/1943

May Amt. 0.31 0.37 0.42 0.59 0.63 0.75 Date 11/1944 14/1949 28/1946 28/1946 28/1946 18/1949

Jun. Amt. 0.38 0.56 o.66 0.95 1.58 2.26 Date 8/1944 8/1944 8/1944 8/1944 8/1944 8/1944

Amt 0.22c 0.34 0.37 0.43 0.43 0.56 Jul. Date 9/1947 9/1947 28/1941 26/1946 26/1946 19/1944

Amt. 0.30 0.39 .0.46 0.57 0.91 1.20 Aug. Date 9/1948 11/1941 11/1941 11/1941 2;/1946 11/1941

Amt. 0~45 0.47 0.47 0.52 0.60 0.94 Sep. Date 7/1940 71:1.940 7/1940 6/1945 16/1946 16/1946

Oct. Amt. 0.21. 0.35 0.52 0.70 0.87 1.10N Date 1/1946 26/1940 26/1940 26/1940 26/1940 26/1940

Amt. 0.11 0.19 0.27 0.40 0.62 1.06N Nov. Dote 18/1946 18/1946 18/1946 14/1942 19/1946 18/1946

Amt.. 0.13 0.25 0.35 0.61 0.91 1.16N Dec. Date 3/1941 3/1941 2/1941 2/1941 2/1941 3/1941

Annual Amt. 0.45 0.56 0~66 0.95 1.58 2.26 Dote 9/7/1940 6/8/1944 6/8/1944 6/8/1944 6/8/1944 6/8/1944

(a) Also on 1/21/1943 (b) Also on 3/30/1947 (c) Also on 7/20/1944

30'

Station: MALAD, IDAHO

Drainage basin: BEAR County: ONEIDA

Lot. 42° 11'N Long. 112° 16'W E lev.(ft.) 4420


Month Duration {hours)

I 2 '

3 6 12 24

Amt. 0.17 0.23 0.;4 0.38 0.76 0.81 Jon. Dote 20/1943 20/1943 20/1943 20/1943 21/1949 21/1949

Amt. 0.16 0.26a 0.40 0.69 0.79 0.96 Feb. Dote 2/1945 2/1945 2/1945 2/1945 2/1945 2/1945

Mo~ Amt. 0.17 0.30 0.37 0.60 0.89 1.10 Dote 20/1946 20/1946 13/1946 13/1946 13/1946 13/1946

Amt. 0.37 0.39 0.40 0.55 0.57 0.71 Apr. Dote 26/1941 26/1941 29/1943 29/1943 29/1943 12/1941

Amt. 0.33 0.48 0.48 0.52 0.60 0.92 May Date 27/1946 14/1949 14/1949 30/1945 20/1949 20/1949 ,·

Jun. Amt. 0.56 o. 71. 0 .. 77 0.94 1.22 1.3,7N Dote 8/1944 8/1944 8/1944 8/1944 8/1944 8/1944

Amt. 0.25 0.33 0.34 0.44 0.58 0.65 Jul. Dote 21/1943 21/1943 21/1943 19/1941 21/1943 21/1943

Amt. 0.44 0.86 1.27 1.~7 1.35 1.35 Auo. Date 17/1941 17/1941 17/1941 17/1941 17/1941 17/1941

Amt. 0.35 0.68 0.96 1.49 .2.01 2.98 Sep. Dote 17/1947 17/1947 17/1947 ' 17/1947 17/1947 17/1947

Amt. 0.30 0.35 0.35 0.55 0.80 1.16 Oct. Date 12/1942 12/1942 12/1942 17/1949 17/1949 27/1946

Amt. 0.40 0.62 0.77 1.31 1.69 2.11 Nov. Dote 10/1944 10/1944 10/1944 10/1944 10/1944 10/1944

Amt.. 0.20 0.34 0.44 0.64 0.80 0.87 Dec. Dote 7/1946 7/1946 7/1946 7/1946 7/1946 7/1946

'

Am f. 0.56 0.86 1.27 1.49 2.01 2.98 . Annual Date 6/8/1944 8/17/1941 8/17/1941 9/17/1947 9/17/1947 9/17/1947

(a) Also on 2/27/1946

31

-

Station: MOHLER (NR):, IDAHO

Droinaoe basin: CLE.ARWATER

Lat. 47° 16'N Long. 116° 16•W

County: LEWIS

E lev.(ft.) 3000



I 2 3 6 12 24 -=

;_

Amt. NO RECOB D Jon. Date

Amt. N 0 R E C 0 B D Feb. Dote

Mar. Amt. 0.23 0.23 0.26 0.31 0.39 0.44 Dote 29/1941 -- 29/1941 29/1941 28/1943 8/1943 7/J.943

Amt. I R E c 0 B D

-

Apr. Dote N 0

--

May Amt. Date

N 0 R.E C 0 B D

Amt. - --

Jun. Dote NO R_ E C 0 B D

Amt. 0.33 0.50 o. 73 0.94 1.14 1.31 Jul. Date 26/1940 -· 26/1940 -. 26/1940 26/1940 26/1940 26/1940

Amt. I 0.17 0.20 0.21 0.38 0.41 0.68 ~ug. --- Dote 30/1943 30/1943 8/1944 8/1944 29/1943 29/1943

Amt. 0.70 0.70 0.70 0.86 1.28 1.37 Sep. Date 17/1940 17/1940 17/1940 9/1942 9/1942 9/1942

Amt. N 0 R E C 0 R D Oct. Date

Amt. N 0 R E.C 0 R D Nov. Dote

Amt.. N 0 R E C .0 R D Dec. Dote

Annual Amt. 0.70 0.70 0.73 0.94 1.28 1.37 Date 9/17/1940 9/17/1940 7/26/1940 7/26/1940 9/9/1942 9/9/1942.

32

Stati·on: MOOSE CREEK RANGER STATION, IDAHO

Drainage basin: CLEARWATER

Lat. 46° 08•ff Long. 114° 50''W

County: IDAHO

E lev.(U.) 2400

I

Month I

Amt. Jon. Date

Amt. Feb. Date

Mar. Amt. 'Dote

Amt. 0.20a Apr. Date 30/1945

Am f. 0.50 May Dote 28/1948

Amt. 0.48 Jun. Dote 26/1947

Amt. 0.80 Jul. Date 4/1942

Amt. 0.61 Aug. Dote 12/1945

Am f. 0.44 Sep. Dote 3/1946

Amt. 0.24 Oct.. Dote 30/1945

Amt. Nov. Date

Amt.. Dec. Date

Amt. 0.80 Annual Dote 7/4/1942

(a) Also on 4/30/1948 (d) Also on 8/22/1947


Duration {hours)

2 3 6 12 24

N 0 ~ECORI

NO ~ECORI

N 0 ~ E C 0 R I

0.35b 0.40 0.49 0.87Ec 1.40 30/1945 23/1945 23/1945 20/1943 20/1943

0.6; 0.64 0.90 1.38 1.41 28/1948 28/1948 28/1948 28/1948 28/1948

0.61 0.69 0.92 1.37 1.60 26/1947 26/1947 26/1947 26/1947 26/1947

0.80 0.80 0.80 0.80 0.84 4/1942 4/1942 4/1942 4/1942 27/1948

0.68 0.70 0.80 0.85d 1.01 I 12/1945 12/1945 30/1943 30/1943 21/1947

0.46 0.50 0.65 0.69 1.04 3/1946 3/1946 16/1947 16/1947 2/1946

o.4c 0.50 0.85 1.67 2.64 5/194.9 5/1949 31/1942 31/1942 31/1942

N 0 J~ E C 0 R D

NO ~'ECORD

0.80 0.80 0.92 1.67 2.64 7/4/1942 7/4/1942, 6/26/1947 10/31/1942 10/31/1942

(b) Also on 4/23/1945 (c) Prorated from 1.30 in. in ·18 hours

33

S to ti on : MOUNTAIN BOME 1 W, IDAHO

Drainage basin: SNAKE County: ELMORE

Lot. 43° 08•N Long. 115° 43'W E lev.{ft.) 3150



I 2 3 6 12 24

Amt. 0.17 0.30 0.3; 0.40 0.43 0.45 Jan. Date 25/1942 25/1942 25/1942 25/1942 24/1942 24/1942

Amt. 0.10a 0.19 0.22b 0.34 0.39. 0.78N Feb. Date 8/1944 1/1942 8/1944 12/1945 12/1945 15/1949

Mat:. Amt. 0.30 0.42 0.50 0.60 0.89 1.37 Date 22/1945 22/1945 22/1945 22/1945 20/1946 7/1943

Amt. 0.2; 0.35 0.40 0.62 0.63 0.65 Apr. Date 8/1943 8/1943 11/1944 11/1944 11/1944 11/1944

May Amt. 0.30 o.;2c 0.38 0.46 0.61 0.67 Date 9/1946 24/1945 24/1945 9/1946 .. 9/1946 9/1946

Jun. Amt. 0.34 0.36 . 0.36 0.46 o.62E l.23N Date 4/1943 4/1943 4/1943 1/1943 7/1941 7/1941

Jul. Amt. 0.49 0.60 0.60 0.60 0.60 0.60 Da.te 3/1943 3/1943 3/1943 3/1943 3/1943 3/1943

Amt. 0.12 0.15 0.19 . 0.31E o.62E 1.23N Aug. Date 23/1946 23/1946 23/1946 12/1941 12/1941 12/1941

Amt. 0.11 0.11 0.11 0.12 0.20 0.22 Sep. ocite 2/1946 2/1946 2/1946 21/1945 21/1945 20/1945

Oct. Amt. 0.28 0.37 0.47 0.66 0.94 1.51 Date 1/1946 1/1946 l/1946 1/1946 1/1946 1/1946

Amt. 0.15 0.25d 0.35 0.43 0.44 0.58 Nov. Date 15/1947 15/1947 15/1947 15/1947 15/1947 26/1942

Dec. Amt 0.37 0.47 0.47 0.50 0.73 0.99 Date 5/1946 5/1946 5/1946 27/1945 27/1945 27/1945

Annual Amt. 0.49 o.6o 0.60 0.66 0.94 1.51 Date 7/3/1943 7/3/1943 7/3/1943 10/1/1946 10/1/1946 10/1/1946

(a) Also on 2/1/1942 and 2/4/1942 . (b) Also on 2/12/1945 (c) Also on 5/9/1946 (d) Also on 11/20/1946

34

Station: MULLAN PASS, IDAHO

Drainage basin: COEUR D'ALENE Cou,.ty: SHOSHONE

Lat. 47° 27'N Long. 115° 41''W E lev.(ft.) 6022



I 2 3 6 12 24

Amt. 0.20a 0.29 Oo56 0.82 1.21 1.91 Jan. Date 6/1948 6/1948 7/1945 7/1945 1/1948 1/1948

Amt. 0.68 0.84 0.85 0.86 1.62 2.68 Feb. Date. 20/1949 20/1949 20/1949 20/1949 16/1949 16/1949

Mar.. Amt. 0.15b 0.25 0.36c o.66c 1.10 1.60 Date 2/1946 21/1948 21/1948 21/1948 10/1945 21/1948

Amt. 0.25 0.50 0.59 0.67 0.89 1.28d Apr. Dote 23/1945 23/1945 23/1945 23/1945 7/1945 7/1945

Amt. 0.71 0.74 0.74 0.90 1.06 1.47 May Date 7/1947 7/1947 7/1947 30/1947 30/1947 16/1941

Jun. Amt. 0.35 0.50 0.58 0.77 1.29 1.53 Date 10/1948 21/1945 17/1943 13/1943 17/1943 17/1943

Amf: 0.40 0.40 0.43 0.60 0.80 1.21 Jul. Date 1/1941 1/1941 19/1948 28/1948 19/1948 19/1948

Amt. 0.73 1.00 1.05 1.05 1.05 1.08N Aug. Date 22/1948 22/1948 22/1948 22/1948 22/1948 22/1948

Amt. 0.88 0.98 0.99 1.01 1.40 1.70 Sep. Dote 19/1947 19/1947 19/1947 19/1947 15/1949 15/19~9

Amt. 0.35 0.65 0.90 1.42 1.66 2.40 Oct. Date 28/1949 28/1949 28/1949 28/1949 17/1947 17/1947

Amt. 0.30 0.50 0.70 1.15 2.00 3.56 Nov. Dote 13/1941 13/1941 13/1941 23/1942 17/1946 17/1946

Amt 0.33 0.63 0.85 1.53 2.64 3.89 Dec. Date 2/1941 2/1941 2/1941 2/1941 2/1941 2/1941

Amt. 0.88 1.00 1.05 1.53 2.64 3.89 Annual Dote 9/19/1947 8/22/1948 8/22/1948 12/2/1941 12/2/1941 12/2/1941

(a) Also on 1/7/1945 (b) Also on 3/6/19.46; 3/22/1948 and 3/10/1947 (c) Also on 3/10/1945 (d) Also on 3/3111943-4/1/1943

35

Station: OLA, IDAHO

Drainage basin: PAYETTE County: GEM

Lat. 44° lO'N long. 116° 17'W E lev.(ft.) 3075

P·eriod of recor'd: 1940-1949 (with breaks)

Month Duration {hours}

I 2 3 6 12

Amt. 0.14a 0.25 .·. 0.38 0.72 1.26 Jan. Date 11/1947 20/1943 20/1943 20/1943 20/1943

Amt. 0.20 0.32 0.47 . 0.78 1.15 Feb. Date 10/1949 8/1945 8/1945 5/1946 5/1946

Amt. 0.17 0.32 0.36 0.48 0.70 Men. Dote 29/1941 29/1941 29/1941 29/1941 12/1946

Amt. 0.24 0.30 0.40 0.60 0.84 Apr. Date 5/1946 8/1943 8/1943 8/1943 8/1943

Amt. 0.45 0.60 0.65 0.77 0.93 May Dote 23/1942 23/1942 23/1942 24/1945 24/1945

Amt. i· 0.45 0.49 0.64 0.95 1.12 Jun. Date 17/1941 17/1941 19/1941 3/1948 5/1948

J.ul. Amt. 0 .. 65 0.70 o. 73 o. 75 0.83 Dote 26/1946 26/1946 26/1946 26/1946 26/1946

Amt. 0.09 0.15 0 .. 18 0.28 0 .. 28 Aug. Dote 7/1945 7/1945 7/1945 7/1945 7/1945

Amt. 0.37 0.40 0.40 0.77 0.93 Sep. Date 4/1946 4/1946 4/1946 13/1940 13/1940

Amt. 0.29 0.53 0.70 o. 78 0.84 Oct Dote 30/1945 30/1945 30/1945 30/1945 24/1940

Amt. 0.23 0.45 0.62 0.84 1.15 Nov. Dote 4/1944 4/1944 4/1944 4/1944 3/1944

Am f. 0.20b 0.38 o.48c 0.86 1.2, Dec. Dote 11/194.8 11/1948 24/1942 24/1942 27/1945

Amt. 0.65 0.70 0.73 0.95 1.26 Annual Date 7/26/194E 7/26/194~ 7/26/l94E 6/3/1948 1/20/194~

(a) Also on 1/30/1947 (b) Also on 12/12/1948 and 12/16/1949 (c) Also on 12/16/1949

36

24

1.64 19/1943

1.38 5/1946

0.82 12/1946

0.87 8/1943

0.96 22/1942

1.51 18/1941

0.85 26/1946

0.28 7/1945

1.61N 13/1940

1.05 . 15/1947

1.52 3/1944

1.67 27/1945

1.67 12/27/1945

Station: PIERCE RANGER STATION, IDAHO

Drainage basin: CLEARWATER County: C:LEABWATER

Lat. 46° ;o•N Long. 115° 48•w E.l e v. {f t.) 3175



I 2 3 6 . 12 24

Amt. 0.33 0.43 0~52 0.80 1.13 1.35 Jan. Date 5/1946 5/1946 5/1946 20/1943 20/1943 19/1943

Amt. 0.38 0.40 0.51 0.66 0.88 1.22 Feb. Date 7/1946 7/1946 .•. 7/1946 8/1945 12/1947 10/1943

Amt. 0 .. 16 0.29 0.35 0.53a 0.79 1.26 Men. Date 29/1943 29/1943 29/1943 29/1943 31/1943 31/1943

Am f. 0.18 0.31 0.40 0.58 0.72 1.38N Apr. Dote 13/1944 13/194-4 13/1944 '29/1946 7/1945 17/1947

Amt. o.4o 0.58 0.70 0.80 1.11 l.67N May Date 22/1942 22/1948 22/1948 .·· 9/1947 i 9/1947 7/1948

Amt. 0.50 0.63 0.89 1.56 2~4.4 2.66 Jun. Date 21/1945 16/1946 16/1946 16/1946 16/1946 16/1946

Amt. 0.34 0.39 0.55 1..00 1.45 2.17 Jul. Date 8/1946 8/1946 8/1946 ·. 28/1948 28/1948 27/1948

Amt. 0.44 0.57 0.60 0.60 0.76 0.81 Aug. Date 14/1944 14/1944 14/1944 14/1944 14/1944 14/1944

Amt. 0.26 o.48b 0.55 0.8; 1.23 1.33 Sep. Date 10/1942 9/1942 9/1942 9/1942 9/1942 9/1942

Amt. 0.25 0.42 0.58 1.02 1.63 2.61 Oct. Date 1/1945 31/1942 31/1942 31/1942 31/1942 30/1942

Amt. 0.27 0.39 0.54 0.90 1 .. 33c 2.56c Nov. Dote 14/1942 7/1947 7/1947 7/1947 1/1942 1/1942

Am f .. 0.24 0.41 0.49 0.84 1.33 2.23 Dec. Dote 28/1945 28/1945 28/1945 28/1945 28/1945 27/1945

Amt. 0.50 0.63 0.89 . 1.56 2.44 2.66 Annual Dote 6/21/1945 6/16/1946 6/16/1946 6/16/1946 6/16/1946 6/16/1946

(a) Also on 3/31/1943 (b) Also on 9/2/1946 (c) Began 10/31/1942

37

S to ti on: PLUMMER 3 'WSW, IDAHO

Drainage basin: CEOUR D'ALENE

Lot. 47° 19'N Long. 116° 57'W

County: BENEWAH

E lev.(ft.) 2970


' Duration (hours) Month

I 2 3 6 12 24 '

Amt. 0.18 0.34 0.50 0.71 1.13 1-75 Jon. Dote 13/1945 13/1945 13/1945 6/1948 6/1948 6/1948

Amt. 0.16 0.30 0.43 o. 73 1.25 1 .• 49 Feb. Oo~e 9/1948 25/1948 25/1948 25/1948 25/1948 25/1948

Amt. 0.16 0.26 0.35 0.63 0.63 0.89 Men. Dote 31/1943 31/1943 31/1943 26/1943 26/1943 12/1945

Amt. 0.24 0.34 0.36a 0.60 1.00 1.01 Apr. Dote 16/1948 16/1948 16/1948 . 29/1946 29/1946 29/1946

Am f. 0.38 0.62 0.64 0.92 1.46 1.65 May Dote 20/1948 20/1948 20/1948 23/1948 23/1948 22/1948

Amt. 0.39 o. 75 1.12 1.46 1.74 1.75 Jun. Dote 6/1947 6/1947 6/1947 5/1947 5/1947 5/1947

Am f. 0.26 0.37 0.52 0.92 1.27 1.62 Jul. Date 26/1940 26/1940 26/1940 26/1940 26/1940 26/1940

Am f. 0.15 0.20 0.25 0.28 0.37 ,' 0.40 Aug. Dote 23/1949 23/1949 23/1949 23/1949 23/1949 23/1949

Amt. 0.42 0.64 0.83 1.01 1.16 1.45 Sep. Dote 20/1945 20/1945 20/1945 20/1945 20/1945 20/1945

Am f. 0.27 0.52 0.76 0.82 1.01 1.71 Oct. Date 2/1940 2/1940 2/1940 2/1940 2/1940 2/1940

Amt. 0.18 0.35 0.50· 0.81 1.22 1.78 . Nov. Dote 28/1940 28/1940 28/1940 28/1940 17/1946 17/1946

Amt.. 0.21 0.36 0.50 0.86 1.24 1.67 Dec. Dote 12/1948 28/1945 28/1945 28/1945 27/1945 27/1945

Amt. 0.42 0.75 1.12 1.46 1.74 1.78 Annual Dote 9/20/1945 6/6/1947 6/6/1947 6/5/1947 6/5/1947 11/17/1946

(a) Also on 4/29/1946

38

Station: POCATELLO AIRPOR'l', IDAHO


Lot. 42° 55'N Long. 112° 32'W E lev.(ft.) 4453


....

Month .. Duration (hours) .. · ..

.. ,, 2 3 6 12 24

Amt. 0.20T 0.27T 0.30 0.37 0.52 0.69N Jan. Date 8/1942 8/1942 8/1942 7/1942 7/1942 5/1940

Amt. 0.18T 0.32'1' 0.42 0.51 0.52 0.52.N Feb. Date 29/1940 . 29/1940 29/1940 29/1940 29/1940 29/1940

Amt. 0.21T 0.38r 0.46 0 .. 58 0.68 0.88T Mar. Date 30/1948 5/1947 5/1947 5/1947 20/1946 13/1946

Amt. o. 23[' 0.24T 0.30T 0.34 o.6o o.65T Apr. Date 5/1946 5/1946 15/1940 13/1941 13/1941 13/1941

Amt . o.43T 0.50T . 0.51 0.72 1.00 1.21T . Mar Date 20/1945 20/1945 20/1945 11/1947 28/1946 28/1946

Jun. Amt. 0.37T o.47T 0.52 0.69 1.09 1.65T

.. Date 12/1944 18/1946 18/1946 26/1944' 21/1948 21/1948 .

Amt. 0.92T 0.97T 0.91 0.97 0.91 0.97f Jul. Date 20/1944 20/1944 20/1944 20/1944 20/1944 20/1944

Am f. 0.73T o. TfT 0.77 0.77 0.77 o. 77T Aug. Date 3/1945 3/1945 3/1945 3/1945 3/1945 3/1945

Amt. 0.50T o.64T 0.95 1.37 1.46 1.51T Sep. Date 12/1940 12/1942 12/1942 12/1942 12/1942 11/1942

Amt. 0.31T 0.45T 0.56 0.83 1.00 1.02T Oct. Date 1/1946 26/1940 26/1940 26/1940 26/1940 25/1940

Amt. 0.29'1' 0.44T 0.46 0.49 0.50 0.82T Nov. Date 20/1946 20/1946 20/1946 20/1946 1/1948 17/1941

Amt. 0.12T 0.19aT 0.26 0.48 0.60 0.88T Dec. Date 27/1940 3/1941 3/1941 3/1941 3/1941 2/1941

.

Amt. 0.92T 0.97'1' 0.97 1.37 1.46 1.65T Annual Date 7/20/1944·. 7/20/1944 7/20/1944 9/12/1942 9/12/1942 6/21/1948 .

(a) Also on 12/22/1944 and 12/6/1946

39

.

Station: POCATELLO AIRPORT, IDAHO*


Lot. 42° 55'N Long. 112° 32''W E lev.(ft.) 4453

Month •...

Jon.

Feb.

Men.

Apr.

May

. Jun.

Jul.

Aug.

Sep.

Oct

Nov.

Dec.

Annual


:: .· Duration (hours) .·

I 2 3 6 12 .

Amt. 0.35T o.49T 0.51 0.70 1.03 Date .. 25/1914 25/1914 25/1914 24/1911 24/1911 I

Amt. 0.19T 0.34T 0.43 0.54 :·. 0.62 Date .. 21/1914 21/1914 25/1902 25/1902 25/1902

Amt. 0.31T I 0.45T I 0.58 0.97 1.21 Date 2/1910 12/1906 12/1906 I 12/1906 12/1906

Amt. 0.35T 0.55T 0.65 o·.79 0.94 Dote 2/1910 6/1923 .. 6/1923 6/1923 22/1900

Amt. 0.71T 0.73T 0. 73 0.87 :. 1.25 Date 19/1915 19/1915 19/1915 16/1909 •• 16/1909

Amt. 0. 7&r 0.86T 0.86 0.95 1.09 Dote 8/1912 8/1912 ~/1912· 5/1906 21/1948

Am f. 1.03T l.06T 1.10T 1.1.3 1.39 Date 31/1936 31/1936 31/1936 31/1936 .. · 31/1936

Amt. 1.24T 1.26T 1.28 1o29 1.63 Dote 2/1920 2/1920 2/1920 2/1920 9/1930

Amt. 0.50T 0.75T 1.08 1.92 2.44 Date 12/1940 30/1906 30/1926 ' 30/1926 29/1926

Amt. 0.32T 0.45T 0.56 0.83 1.00 Date 3/1909 26/1940 26/1940 .. 26/1940 . 26/1940 ..

Amt. o.41T 0.55T 0.59 0.68 0.82 Date 10/1927 10/1927 10/1927 26/1920 9/1927

Amt. 0.25T 0.35T 0.41 0.59 I 0.95 Date 26/1907 3/1916 3/1916 26/1907 26/1907

.. ..

Amt. 1.24T 1.26T 1.28 .. 1 .. 92 . 2.44 ()ate 8/2/1920 8/2/1920 8/2/1920 9/30/1926 9/29/1926

.

* 9 mi .. W of Pocatello. Prior to Sept. 1, 19.38, observations were made at city office.. Station was moved 6 miles west on that date, and to its present location in May 1949.

40

24 ·····

1.4rr 24/1911

1.07T 8/1909

1.62T 6/1907

1.25T 22/1900

1.64T 18/1913

1.65T 21/1948 . 1.75T

3,1/1936

1.90T 8/1930

2.60T 29/1926

1.021' 25/1940

0.93T 9/1927

1.15T 12/1933 ·.

2o60T 9/29/1926

:

Station: SANDPOINT EXPERIMENTAL STATION, IDAHO

County: BONNER Drainage basin: PEND OBEI:LLE

Lat. 48° 17'N long. 116° 34'W E lev.{ft.) ~100

Month I

Amt. 0.19 Jan. Date 1/1948

Amt. 0.18 Feb. Date 2/1945

Mar:. Amt. 0.40 Date 10/i947

Amt. 0.27 Apr. Date 19/1947 .

Amt. 0.48 Mar Date 22/1.942

Amt. 1.04 Jun. Date 27/1942

Amt. 0.40 Jul. Date 12/1941

Amt 0.30 Aug. Date 23/1941

Amt. 0.50 Sep~ Date 21/1944

Amt. 0.22 Oct .. Date 6/1941

Amt. 0.22 Nov. Date 13/1941

Amt. 0.22 Dec. Dote 2/1941

'>

Am f. 1.04 Annual Date 6/27/1942

{a) Also on 4/17/1948 (d) Also on 10/16/1947


'> Ourotiop (~o-..rs)

2 3 6 12 2.4

0.33 0.46 o. 75 0.96 1..52 13/1945 13/1945 13/1945 6/1945 17/1941

0.)2 0.47 0.83 1.26 1.53 7/1945 7/1945 7/1945 7/1945 7/1945

0.60 0.76 0.78 1.16 1.41 10/1947 10/1947 10/1947 10/1947 9/1947

0.35a 0.49 o.64b 0~83 1.07 1/1942 17/1948 17/1948 1/1942 16/1948

0.~51 0.52 0.83 1.38 2.00 22/1942 22/1942 17/1941 17/1941 16/1941

1.41 1.48 1.54 1.54 1 .. 80 27/1942 27/1942 27/1942 27/1942 27/1942

0.44 0.44 0.44 0~48 0.48 12/1941 12/1941 12/194:1 5/1948 5/1948

0.36 0.36 0.50c 0.53· .

0.75 30/1942 30/1942 27/1941 27/1941 26/1941

0.72 0.81 1.14 1~55 1.60 21/1944 21/1944 4/1940 4/1940 4/1940

0.37 0.50d 0.82 1.21e 1.55 30/1940 30/1940 16/1947 4/1949 4/1949

0.41. .. 0.61 1.02 1.32 2.03N 13/1941 .· 13/1941 13/1941 13/1941 17/194-6

0.37 0.52 0.75 1.13 1.87 2/1941 2/1941 2/1941 2/1941 2/1941

..

1.41 1.48 1.54 1.55 2.03 6/27/1942 6/27/1942 6/27/1942 9/4/1940 111/17/1946

.

(b) Also on 4/16/1948 (e) Also on 10/31/1942

(c) 7-hr accumulation

41

Station:. SUN VAUXY, IDAHO

Drainage basin: SNAKE County: BlAINE

Lot. 43~ 4l'N Long. 114° 21'W E le v.(ft.} 5821

Period of record: 1941~1949

.. .·

Month ll

··. Amt. 0!35 Jan. Date 23/1946

Amt. 0.20 Feb. Date 2/1945

Amt. 0.15a Mor:. Date 12/1940 ..

Amt. 0.19 Apr. Date 28/1943

Amt o.;o May Date 15/1949

Amt. 0.28 Jun. Date 24/1945

Amt. 0.52 . .. Jul. Date 11/1945

Amt. 0.32 Aug. Date 20/1945

Amt. 0.22 Sep. Date 25/1948

Amt. 0.25 Oct. Date 30/1945

Amt. O.l6c Ne>v. Dote 19/1946·

Amt .. 0.18d Dec. Dote 3/1941

.

Annual Amt. 0.52 Date 7/11/1945

(a) Also on 3/30/1947 (d) Also on 12/6/1946

.· · ... 2

0.43 24/1946

0.30 2/1945

0.25 30/1947

0.30 27/1944

0.41 18/1949

0.44 23/1945

0.55 11/1945

0.40 20/1945

0.'37 25/1948

0.37 30/1945

0.29 19/1946

0.35 6/1946

0.55 7/11/1945

..

Duration (hours}

3 6 12 24

0.55 20/1943

0.95 20/1943

1·35 20/1943

1.83 20/1943

0.45 0.77 1.22 1.56 2/1945 2/1945 1/1945 1/1945

0.31 0.40 0.55 0.64 30/1947 30/1947 I 12/1940 19/1946

0.39 0.59 0.84 0.96 28/1943 28/1943 28/1943 27/1943

0.49 0.65 0.76 1.05N 18/1949 18/1949 18/1949 19/1949

0.51 o.6ob 0.85 1.24 23/1945 13/1943 8/1944 8/1944

0.55 0.57 0-57 0.61 11/1945 11/1945 11/1945 10/1945

0.50 0:60 0.65 0.90N 20/1945 20/1945 19/1945 11/1941

0.51 0.81 1.02 1.30 25/1948 25/1948 25/1948 25/1948

0.43 0.70 1.09 1.48 1/1946 16/1947 16/1947 1/1946

0.37 0.65 1.16E 2.30N 19/1946 20/1946 19/1946 19/1946

0.48 0.91 1.63 2.55 2/1941 2/1941 2/1941 2/1941

0.55 . 0.95 1.63 2.55 7/11/1945 1/20/1943 12/2/1941 12/2/1941 .1/20/1943

. (c) Also on 11/10/1945

42

Station: WALLACE 2 NE, IDAHO

Drainage basin: CEOUR D'ALENE County: SHOSHONE

Lot. 47° 30'N Long. 115° 53'W E tev.(ft.) 2950


Month Duration (hours) ll 2 3 6 12 24

Amt. 0.16 0.31 0.45 0.74 1.18 1.81 Jon. Dote 6/1948 6/1948 6/1948 6/1948 6/1948 6/1948

Amt. 0.15a 0.27 0.37 0.70 1.22 1.78 Feb. Date 10/1949 10/1949 17/1949 17/1949 17/1949 1/1947

Moe. Amt. 0.19 0.32 0.45 0.58 0.95 I 1.29 Dote 26/1943 26/1943 26/1943 26/1943 12/1946 11/1946

Amt. 0.24 0.40 0.53 0.59 0.61 o.86b Apr. Dote 23/1945 23/1945 23/1945 23/1945 23/1945 23/1945

Amt. 0.40 0.42 0.46 0.55c 0.87 1.01 May Dote 22/1942 22/1942 22/1942 22/1942 14/1942 13/1942

Amt. 0.32 0.50 0.58 0.77 1.08 1.14 Jun. Dote 28/1941 6/1946 6/1946 13/1943 28/1941 27/1941

Amt. 0.58 0.75 0.85 1.10 1.11 1.34N Jul. Dote 8/1946 8/1946 8/1946 8/1946 8/1946 7/1946

.·

Amt. 0.55 0.60 0.60 0. 73 0. 73 0.73 Aug. Dote 1/1948 1/1948 1/1948 ~/1948 1/1948 1/1948

Amt. 0.47 0.62 0.69 0.75 1.13 1.26 Sep. Dote 21/1944 21/1944 21/1944 21/1944 15/1949 15/1949

Oct. Amt. 0.30 0.60 0.84 1.17 1.41 1.64 Dote 28/1949 28/1949 28/1949 28/1949 28/1949 30/1942

Amt. 0.30 0.60 0.76 0.99 1.86 3.07N Nov. Dote 27/1949 27/1949 27/1949 17/1946 17/1946 16/1946

Amt.. 0.28 0.52 0.68 1.04 1.34 2.53 Dec. Dote 2/1941 2/1941 2/1941 2/1941 2/1941 ·~· 2/1941

Annual Amt. 0.58 0.75 0.85 1.17 1.86 3.07N . Dote 7/8/1946 7/8/1946 7/8/1946 10/28/1949 11/17/1946 11/16/1946

(a) Also on 2/17/1949 (b) Also on 3/31-4/1/1943 (c) Also on 5/14/1942

43

:

Station: WOLF. LODGE SUMMIT, IDAHO

Drainage basin: CEOUR D'ALENE

Lot. 47° 43'N LOng. 116° 30'W

County: KOOTENAY

E lev.{H.) 4650

Perio·d of record: 1941-1949 (with breaks)


I 2 3 6 12 24

Amt. N 0 RECORD Jan. Date

Amt. N 0. RECORD Feb. Date

Mor.. Amt. N Q ... RECORD Dote

Amt. NO R E C 0 R ~ Apr. Dote

Amt. 0.35 0.41 0.60 0.78 1.39 1.90 May Date 25/1942 25/1942 25/1942 26/1942 26/1942 26/1942

Ju.n. Amt. 0.33 0.58 0.70 0.90 1.41 1.63 Dote 30/1949 30/1949 30/1949 13/1943 13/1943 13/1943

Jul. Amt. 0~29 o.44 0.55 0.95 1.36 1.99 Date 24/1949 11/1942 19/1948 19/1948 19/1948 27/1948

Amt. 0.27 0.48 0.64 0.69 0.96 1.19 Aug. Date 9/1944 9/1944 13/1944 13/1944 26/1945 26/1945

Amt. 0.38 0.53 0.63 1.00 1.72 2.05a Sep. Date·· 5/1945 25/1945 25/1945 20/1945 20/1945 14/1949

Oct. Amt. 0.42 0.65 0.90 1.55 . 2.04 2.21 Dote 2/1947 31/1942 31/1942 31/1942 11/1943 10/1943

Amt. 0.28 0.50 0.70 1~13 1.67 3.00 Nov. Dote 23/1942 15/1942 15/1942 30/1943 23/1942 30/1943

Amt.. 0.45 0.66 0.85 1.24 1.99 3.00b Dec. Dote 3/1943 3/1943 2/1943 2/1943 30/1944 1/1943

Annual Amt. 0.45 0.66 0.90 1.55 2.04 3.00 Date 12/3/1943 12/3/1943 10/31/1942 10/31/1942 10/11/1943 1/30/194!

(a) Also on 9/15/1949

44 U.S. GOVERNMENT PRINTING OFFICE: 0-1951

maximum station precipitation for l, 2, 24...

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