MILL CREEK DAM, WASHINGTON

Period of Record General Climate Summary - Precipitation

Station:(455387) MILL CREEK DAM
From Year=1948 To Year=2012
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 2.19 5.37 1970 0.38 1949 1.65 16/1956 12 6 1 0 4.7 25.5 1950
February 1.61 3.59 1986 0.20 2005 1.33 13/1970 10 5 1 0 2.0 13.5 1985
March 1.85 4.25 1983 0.41 1965 1.21 13/1972 11 6 1 0 0.5 6.5 1951
April 1.66 3.88 1978 0.21 1956 1.42 07/1969 10 5 1 0 0.0 0.0 1949
May 1.72 5.67 1991 0.35 2012 1.86 31/2000 9 5 1 0 0.0 0.0 1949
June 1.19 3.05 1971 0.00 2003 1.34 07/1950 7 3 1 0 0.0 0.0 1949
July 0.47 3.16 1992 0.00 1949 2.10 23/1992 3 1 0 0 0.0 0.0 1948
August 0.64 3.23 1977 0.00 1955 1.44 30/1977 3 2 0 0 0.0 0.0 1948
September 0.81 3.31 1959 0.00 1975 1.27 02/1971 4 2 0 0 0.0 0.0 1948
October 1.54 4.61 1950 0.00 1987 1.82 10/1955 7 4 1 0 0.0 0.0 1948
November 2.23 5.62 1973 0.54 1952 2.00 01/1994 11 6 1 0 1.2 22.5 1985
December 2.30 5.06 1973 0.35 1965 1.50 12/2009 12 7 1 0 3.3 27.8 2008
Annual 18.22 25.95 1983 10.51 1952 2.10 19920723 99 53 9 1 11.7 39.8 2008
Winter 6.10 11.31 1982 1.76 2005 1.65 19560116 34 18 3 0 10.0 36.9 2009
Spring 5.24 9.42 1991 2.54 1964 1.86 20000531 29 16 2 0 0.5 6.5 1951
Summer 2.30 5.68 1992 0.34 2003 2.10 19920723 13 6 1 0 0.0 0.0 1949
Fall 4.58 8.40 1973 0.92 1987 2.00 19941101 23 13 2 0 1.2 22.5 1985
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