PORTLAND WSFO, OREGON

Period of Record General Climate Summary - Precipitation

Station:(356751) PORTLAND WSFO
From Year=1941 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 5.42 12.83 1953 0.06 1985 2.49 01/2009 18 12 3 1 3.2 41.4 1950
February 3.88 10.03 1996 0.72 1993 2.16 06/1996 16 10 2 0 1.1 13.2 1949
March 3.77 7.89 2012 1.10 1965 1.54 29/1983 18 11 2 0 0.4 12.9 1951
April 2.54 5.26 1993 0.53 1956 1.25 21/1988 15 8 1 0 0.0 0.0 1949
May 2.27 5.55 1998 0.10 1992 1.47 19/1968 13 7 1 0 0.0 0.6 1953
June 1.61 4.27 2010 0.03 1951 1.70 06/1958 9 5 1 0 0.0 0.0 1949
July 0.56 2.68 1983 0.00 1952 1.06 09/1995 4 2 0 0 0.0 0.0 1949
August 0.86 4.53 1968 0.00 1955 1.47 25/1977 5 2 0 0 0.0 0.0 1949
September 1.53 4.30 1986 0.00 1975 2.23 17/1969 7 4 1 0 0.0 0.0 1948
October 3.06 8.41 1994 0.19 1988 2.44 27/1994 13 8 2 0 0.0 0.2 1950
November 5.57 11.92 2006 0.77 1976 2.69 19/1996 18 12 3 1 0.4 8.2 1955
December 5.88 13.35 1996 1.38 1976 2.17 27/1942 19 13 4 1 1.4 15.7 1968
Annual 36.95 63.20 1996 22.48 1985 2.69 19961119 154 93 20 4 6.6 44.5 1950
Winter 15.18 24.70 1970 4.41 1985 2.49 20090101 53 35 9 2 5.7 43.7 1950
Spring 8.58 14.51 2012 4.31 1994 1.54 19830329 46 26 4 1 0.4 12.9 1951
Summer 3.03 6.92 1983 0.33 1951 1.70 19580606 18 8 1 0 0.0 0.0 1949
Fall 10.17 18.01 1996 2.49 1952 2.69 19961119 38 24 6 1 0.4 8.2 1955
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