LOWER GRANITE DAM, WASHINGTON

Period of Record General Climate Summary - Precipitation

Station:(454835) LOWER GRANITE DAM
From Year=1965 To Year=1975
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 3.21 5.58 1970 0.61 1968 1.55 26/1975 11 8 2 0 5.4 25.5 1969
February 1.52 2.41 1968 0.48 1967 0.85 19/1974 7 4 1 0 0.0 0.2 1969
March 1.48 2.18 1972 0.75 1968 0.53 18/1975 9 5 0 0 0.3 2.7 1970
April 1.17 2.53 1969 0.15 1968 0.76 01/1974 8 4 0 0 0.0 0.0 1967
May 0.98 1.42 1972 0.51 1966 0.74 12/1967 5 3 0 0 0.0 0.0 1966
June 1.16 3.47 1971 0.30 1973 0.81 21/1967 6 4 1 0 0.0 0.0 1967
July 0.51 1.61 1974 0.00 1969 0.98 05/1966 2 1 1 0 0.0 0.0 1966
August 0.52 1.38 1975 0.00 1967 0.54 16/1972 3 1 0 0 0.0 0.0 1966
September 0.76 1.90 1968 0.06 1974 1.02 18/1968 4 2 1 0 0.0 0.0 1966
October 1.12 2.01 1968 0.00 1974 0.80 28/1967 7 4 1 0 0.0 0.0 1967
November 2.50 7.21 1973 0.39 1969 1.46 01/1973 10 7 1 0 0.0 0.0 1966
December 2.81 5.71 1973 0.81 1965 1.00 22/1972 13 7 1 0 2.6 11.5 1968
Annual 17.72 22.18 1971 14.07 1969 1.55 19750126 85 50 9 1 8.4 28.2 1969
Winter 7.54 11.62 1974 5.15 1973 1.55 19750126 31 19 4 1 8.0 37.2 1969
Spring 3.63 5.03 1972 2.00 1968 0.76 19740401 21 12 1 0 0.3 2.7 1970
Summer 2.19 5.07 1971 0.30 1973 0.98 19660705 11 6 1 0 0.0 0.0 1967
Fall 4.37 8.54 1973 1.80 1974 1.46 19731101 22 13 2 0 0.0 0.0 1967
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