BONNEVILLE DAM, OREGON

Period of Record General Climate Summary - Temperature

Station:(350897) BONNEVILLE DAM
From Year=1937 To Year=2012
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 42.4 32.9 37.6 64 10/1990 -5 31/1950 46.4 1953 23.9 1950 0.0 3.2 12.3 0.0
February 47.4 35.2 41.3 68 23/2002 -5 01/1950 47.1 1991 32.6 1956 0.0 0.6 7.3 0.1
March 53.5 37.8 45.7 75 28/1947 20 03/1960 52.0 1941 39.9 1955 0.0 0.1 4.0 0.0
April 59.9 42.1 51.0 88 28/1987 26 01/2008 55.3 2004 45.6 1955 0.0 0.0 0.5 0.0
May 66.6 47.2 56.9 98 23/2001 31 20/1966 62.8 1992 52.2 1962 0.2 0.0 0.1 0.0
June 71.8 52.4 62.1 104 27/2006 37 02/1967 67.6 1992 58.0 1971 1.0 0.0 0.0 0.0
July 78.8 56.8 67.8 107 15/1941 43 24/1953 72.6 1985 62.0 1955 3.1 0.0 0.0 0.0
August 78.9 56.6 67.8 107 18/1977 42 08/1965 73.2 1967 63.8 1954 3.1 0.0 0.0 0.0
September 74.1 52.9 63.5 100 06/1955 34 27/1972 67.8 1967 59.0 1972 1.0 0.0 0.0 0.0
October 62.8 46.7 54.8 86 03/1952 29 19/1949 60.9 1952 48.3 1949 0.0 0.0 0.2 0.0
November 50.8 39.7 45.3 80 12/1961 9 24/1985 50.7 1995 36.3 1985 0.0 0.4 3.0 0.0
December 43.9 34.7 39.3 65 26/1980 0 30/1968 43.7 1939 29.0 1985 0.0 1.6 9.2 0.0
Annual 60.9 44.6 52.7 107 19410715 -5 19500131 56.0 1992 49.7 1955 8.4 5.9 36.5 0.1
Winter 44.6 34.3 39.4 68 20020223 -5 19500131 44.0 1992 32.3 1949 0.0 5.5 28.8 0.1
Spring 60.0 42.4 51.2 98 20010523 20 19600303 56.2 1992 46.3 1955 0.2 0.1 4.5 0.0
Summer 76.5 55.3 65.9 107 19410715 37 19670602 69.5 1992 61.7 1954 7.2 0.0 0.0 0.0
Fall 62.6 46.4 54.5 100 19550906 9 19851124 58.5 1987 49.9 1985 1.0 0.4 3.1 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