LEWISTON WTP, IDAHO

Period of Record General Climate Summary - Precipitation

Station:(105236) LEWISTON WATER PLANT
From Year=1894 To Year=1955
Precipitation Total Snowfall
Mean High Year Low Year 1 Day Max. >=
0.01 in.		 >=
0.10 in.		 >=
0.50 in.		 >=
1.00 in.		 Mean High Year
in. in. - in. - in. dd/yyyy
or
yyyymmdd		 # Days # Days # Days # Days in. in. -
January 1.19 3.57 1953 0.27 1944 1.40 12/1900 10 4 0 0 4.3 29.8 1950
February 0.97 2.47 1940 0.18 1935 0.99 11/1897 8 3 0 0 2.4 15.4 1936
March 0.99 2.05 1934 0.30 1899 0.95 12/1939 9 3 0 0 0.2 2.0 1955
April 1.12 1.91 1937 0.17 1899 0.93 16/1935 8 4 0 0 0.0 0.4 1945
May 1.44 3.55 1941 0.41 1947 1.65 16/1897 8 4 1 0 0.0 0.0 1900
June 1.65 3.95 1941 0.06 1895 1.39 29/1941 8 5 1 0 0.0 0.0 1899
July 0.49 1.87 1948 0.00 1953 0.81 05/1895 3 2 0 0 0.0 0.0 1940
August 0.31 1.47 1896 0.00 1934 0.90 31/1896 3 1 0 0 0.0 0.0 1940
September 0.96 4.42 1940 0.02 1953 1.45 14/1955 5 3 1 0 0.0 0.0 1934
October 1.26 3.24 1940 0.04 1895 1.10 10/1955 8 4 1 0 0.0 0.0 1899
November 1.42 4.20 1897 0.07 1943 0.95 08/1896 11 5 0 0 0.3 2.5 1896
December 1.35 2.53 1937 0.26 1954 0.89 27/1937 10 5 0 0 1.8 5.0 1955
Annual 13.15 21.38 1940 8.40 1935 1.65 18970516 89 43 4 0 9.0 29.8 1950
Winter 3.51 6.15 1940 1.62 1955 1.40 19000112 27 12 1 0 8.4 33.8 1950
Spring 3.55 5.99 1941 1.69 1936 1.65 18970516 25 12 1 0 0.3 2.0 1955
Summer 2.44 5.30 1941 0.78 1949 1.39 19410629 14 7 1 0 0.0 0.0 1940
Fall 3.64 9.13 1940 0.95 1936 1.45 19550914 24 12 1 0 0.3 0.5 1940
Table updated on Oct 31, 2012
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov. 






Western Regional Climate Center, wrcc@dri.edu