PORTLAND WSO CITY, OREGON

Period of Record General Climate Summary - Precipitation

Station:(356761) PORTLAND WSO CITY
From Year=1928 To Year=1973
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 6.62 15.22 1970 0.90 1949 2.63 06/1948 19 14 5 1 5.1 32.9 1950
February 4.60 11.43 1949 0.97 1929 2.35 17/1949 16 11 3 1 1.3 15.9 1937
March 4.71 8.37 1957 1.31 1969 2.06 31/1931 18 12 3 1 0.6 10.4 1951
April 2.70 6.22 1937 0.50 1956 1.83 12/1937 14 8 1 0 0.2 5.2 1936
May 2.01 4.97 1941 0.61 1935 1.46 01/1949 11 6 1 0 0.0 0.0 1928
June 1.58 3.88 1937 0.03 1951 1.92 08/1933 9 5 1 0 0.0 0.0 1928
July 0.37 1.43 1963 0.00 1930 0.93 08/1946 3 1 0 0 0.0 0.0 1928
August 0.73 4.25 1968 0.00 1928 1.29 25/1956 4 2 0 0 0.0 0.0 1928
September 1.78 4.87 1969 0.04 1965 2.41 17/1969 7 4 1 0 0.0 0.0 1928
October 3.64 9.70 1947 0.44 1936 1.82 09/1955 13 8 2 1 0.0 0.6 1935
November 6.02 14.38 1942 0.36 1936 2.95 15/1950 17 12 4 1 0.1 6.4 1955
December 7.74 17.45 1933 2.18 1944 3.99 26/1937 20 14 5 2 1.3 13.4 1964
Annual 42.51 59.99 1968 26.20 1929 3.99 19371226 150 97 27 7 8.6 36.3 1937
Winter 18.97 30.98 1970 9.85 1931 3.99 19371226 54 39 13 4 7.8 34.4 1937
Spring 9.42 14.96 1963 3.92 1939 2.06 19310331 43 26 5 1 0.7 10.4 1951
Summer 2.69 6.66 1968 0.29 1951 1.92 19330608 17 8 1 0 0.0 0.0 1928
Fall 11.43 21.19 1950 2.21 1936 2.95 19501115 36 24 8 2 0.2 6.4 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