ROSS DAM, WASHINGTON

Period of Record General Climate Summary - Temperature

Station:(457185) ROSS DAM
From Year=1960 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 37.5 28.8 33.2 57 15/1974 -2 29/1969 39.6 1981 22.1 1969 0.0 5.2 19.4 0.1
February 42.0 30.6 36.3 61 23/1973 -2 01/1989 40.6 1977 27.4 1989 0.0 1.4 17.0 0.1
March 47.4 32.9 40.1 71 30/1966 10 03/1989 48.0 1992 34.6 2002 0.0 0.4 13.2 0.0
April 55.1 37.2 46.2 82 27/2004 27 01/2008 51.2 2004 41.0 2011 0.0 0.0 3.7 0.0
May 63.4 43.4 53.4 97 30/1983 27 14/1964 58.9 1993 48.3 1962 0.1 0.0 0.2 0.0
June 69.6 49.3 59.4 100 01/1986 36 02/1976 65.4 1992 54.5 1981 0.9 0.0 0.0 0.0
July 76.8 53.7 65.2 103 22/2006 37 17/1962 70.9 1985 60.0 1993 3.4 0.0 0.0 0.0
August 77.5 54.8 66.2 101 31/1967 40 24/1975 71.8 1967 60.5 1975 3.6 0.0 0.0 0.0
September 69.7 49.5 59.6 97 01/1998 34 27/1972 65.1 1995 54.0 1972 0.3 0.0 0.0 0.0
October 56.8 42.1 49.4 86 12/1991 16 31/1984 54.2 1987 45.3 1990 0.0 0.0 0.7 0.0
November 44.1 34.9 39.5 64 02/1965 2 27/1985 44.3 1987 27.4 1985 0.0 0.9 7.9 0.0
December 38.1 30.0 34.1 57 16/1976 -10 30/1968 38.9 1976 26.8 1990 0.0 3.4 18.7 0.2
Annual 56.5 40.6 48.6 103 20060722 -10 19681230 50.9 1992 46.7 2011 8.4 11.2 80.9 0.3
Winter 39.2 29.8 34.5 61 19730223 -10 19681230 38.0 1992 28.2 1969 0.0 9.9 55.2 0.3
Spring 55.3 37.8 46.6 97 19830530 10 19890303 52.1 1992 42.8 2011 0.1 0.4 17.2 0.0
Summer 74.6 52.6 63.6 103 20060722 36 19760602 67.1 2003 59.9 1976 8.0 0.0 0.0 0.0
Fall 56.8 42.1 49.5 97 19980901 2 19851127 53.8 1987 43.0 1985 0.3 0.9 8.6 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