DIABLO DAM, WASHINGTON

Period of Record General Climate Summary - Temperature

Station:(452157) DIABLO DAM
From Year=1931 To Year=2006
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 37.8 27.7 32.8 62 09/1953 -8 25/1950 40.3 1994 15.3 1950 0.0 5.3 21.5 0.4
February 42.9 29.8 36.4 63 28/1988 -10 07/1936 41.9 1958 20.6 1936 0.0 1.7 18.6 0.1
March 48.9 32.5 40.8 75 30/2004 3 04/1955 49.4 1992 33.3 1955 0.0 0.4 14.5 0.0
April 57.1 37.1 47.1 90 25/1977 24 01/1935 52.1 1941 42.2 1954 0.0 0.0 4.2 0.0
May 65.3 43.1 54.2 103 30/1983 28 01/1954 61.7 1958 48.2 1955 0.5 0.0 0.2 0.0
June 70.4 48.4 59.4 100 01/1986 35 06/1932 64.8 1969 54.9 1971 1.4 0.0 0.0 0.0
July 77.1 52.1 64.7 106 22/1938 38 04/1932 73.0 1958 60.0 1993 3.6 0.0 0.0 0.0
August 77.4 52.7 65.0 106 01/1965 37 29/1936 70.2 1961 60.3 1995 3.6 0.0 0.0 0.0
September 70.7 48.0 59.4 101 04/1988 31 27/1972 64.6 1938 53.9 1941 0.9 0.0 0.0 0.0
October 58.0 41.1 49.6 87 12/1991 18 31/1984 55.6 1952 45.5 1949 0.0 0.0 1.4 0.0
November 45.0 34.2 39.6 65 01/1954 4 27/1985 45.3 1954 28.0 1985 0.0 0.8 10.3 0.0
December 39.0 30.2 34.6 58 04/1965 -8 29/1968 39.4 1939 27.1 1983 0.0 2.9 19.3 0.1
Annual 57.5 39.8 48.6 106 19380722 -10 19360207 51.8 1958 45.6 1955 10.1 11.1 90.1 0.6
Winter 39.9 29.3 34.6 63 19880228 -10 19360207 39.1 1958 27.1 1950 0.0 9.9 59.5 0.6
Spring 57.1 37.6 47.4 103 19830530 3 19550304 52.8 1992 41.5 1955 0.6 0.4 18.9 0.0
Summer 75.0 51.1 63.0 106 19380722 35 19320606 68.8 1958 59.0 1954 8.6 0.0 0.0 0.0
Fall 57.9 41.1 49.5 101 19880904 4 19851127 53.1 1987 43.2 1985 0.9 0.9 11.8 0.0
Table updated on Jul 28, 2006
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