LOWER GRANITE DAM, WASHINGTON

Period of Record General Climate Summary - Temperature

Station:(454835) LOWER GRANITE DAM
From Year=1965 To Year=1975
Monthly Averages Daily Extremes Monthly Extremes Max. Temp. Min. Temp.
Max. Min. Mean High Date Low Date Highest
Mean		 Year Lowest
Mean		 Year >=
90 F		 <=
32 F		 <=
32 F		 <=
0 F
F F F F dd/yyyy
or
yyyymmdd		 F dd/yyyy
or
yyyymmdd		 F - F - # Days # Days # Days # Days
January 41.7 29.6 35.7 66 15/1974 -2 01/1969 43.8 1967 25.3 1969 0.0 6.7 16.4 0.4
February 49.5 34.7 42.1 68 28/1972 11 03/1972 45.0 1970 38.4 1975 0.0 0.8 8.7 0.0
March 56.4 37.8 47.1 75 29/1966 24 03/1966 51.3 1968 44.0 1975 0.0 0.0 6.0 0.0
April 61.1 41.1 51.1 89 30/1968 25 13/1968 53.7 1969 48.8 1967 0.0 0.0 2.1 0.0
May 72.6 48.7 60.7 100 06/1966 30 16/1966 62.7 1969 57.9 1975 1.5 0.0 0.0 0.0
June 81.9 56.3 69.1 103 24/1970 45 05/1967 72.6 1969 64.0 1975 8.5 0.0 0.0 0.0
July 91.6 62.5 77.0 112 13/1967 45 05/1971 79.6 1968 74.6 1974 19.0 0.0 0.0 0.0
August 91.0 62.2 76.6 112 25/1966 45 15/1968 81.6 1967 71.9 1975 17.8 0.0 0.0 0.0
September 81.3 55.6 68.4 111 01/1967 40 14/1970 74.6 1967 63.3 1972 6.2 0.0 0.0 0.0
October 65.3 45.6 55.4 88 06/1971 24 29/1971 58.3 1974 53.3 1969 0.0 0.0 0.4 0.0
November 51.9 38.5 45.2 72 01/1967 17 23/1970 47.2 1966 42.1 1973 0.0 0.0 5.0 0.0
December 44.9 32.9 38.9 67 11/1968 -20 30/1968 43.8 1966 33.1 1972 0.0 2.9 11.5 0.4
Annual 65.8 45.5 55.6 112 19660825 -20 19681230 57.0 1967 54.7 1969 53.0 10.4 50.2 0.8
Winter 45.4 32.4 38.9 68 19720228 -20 19681230 43.9 1967 33.3 1969 0.0 10.4 36.6 0.8
Spring 63.4 42.6 53.0 100 19660506 24 19660303 54.9 1968 50.3 1975 1.5 0.0 8.1 0.0
Summer 88.2 60.3 74.2 112 19660825 45 19670605 76.7 1967 71.0 1975 45.3 0.0 0.0 0.0
Fall 66.2 46.6 56.4 111 19670901 17 19701123 58.7 1967 55.0 1973 6.2 0.0 5.4 0.0
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