ROSS DAM, WASHINGTON

Period of Record General Climate Summary - Precipitation

Station:(457185) ROSS DAM
From Year=1960 To Year=2006
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 9.33 17.98 1974 0.60 1985 3.65 10/1983 18 14 7 3 15.6 55.0 1972
February 6.20 13.47 1961 1.08 2004 5.42 22/2002 15 10 4 2 9.0 46.5 1990
March 5.15 12.53 1997 0.29 1992 3.16 06/1972 17 11 3 1 5.0 40.1 2002
April 3.09 7.11 1991 0.27 1999 2.82 04/1991 14 8 2 0 0.2 7.0 1975
May 2.06 5.32 1984 0.35 1992 2.48 12/1987 11 6 1 0 0.0 0.0 1961
June 1.58 4.92 1968 0.19 1965 2.19 02/1968 10 4 1 0 0.0 0.0 1961
July 1.20 4.54 1983 0.05 1984 1.95 09/1997 7 3 1 0 0.0 0.0 1961
August 1.28 4.03 2004 0.01 1986 1.62 25/2004 7 4 1 0 0.0 0.0 1961
September 2.38 6.43 1972 0.21 1989 2.32 30/2005 9 5 1 0 0.0 0.0 1960
October 5.87 19.71 2003 0.23 1987 6.85 17/2003 15 10 4 1 0.1 2.6 1984
November 9.86 28.41 1995 1.24 1979 5.36 08/1995 20 15 7 3 4.0 45.5 1973
December 9.30 18.60 1975 1.26 1985 4.54 26/1980 19 14 6 3 13.1 72.0 1996
Annual 57.29 79.11 1990 38.66 1985 6.85 20031017 161 104 37 14 47.0 133.5 1990
Winter 24.82 39.47 1974 7.55 1985 5.42 20020222 52 38 17 7 37.7 93.0 1997
Spring 10.30 18.74 1997 4.47 1992 3.16 19720306 41 25 6 2 5.2 40.4 2002
Summer 4.06 8.81 1983 0.87 2003 2.19 19680602 24 11 2 0 0.0 0.0 1961
Fall 18.11 37.92 1995 6.22 1987 6.85 20031017 44 30 12 4 4.1 45.5 1973
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