SEATTLE CITY OFFICE, WASHINGTON

Period of Record General Climate Summary - Temperature

Station:(457488) SEATTLE WB CITY
From Year=1948 To Year=1972
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 44.8 36.7 40.7 63 31/1960 11 14/1950 47.1 1953 28.7 1950 0.0 2.0 7.0 0.0
February 49.7 39.6 44.6 74 29/1968 12 01/1950 50.6 1968 38.2 1956 0.0 0.1 2.6 0.0
March 52.2 40.3 46.2 74 03/1965 22 05/1955 50.2 1968 41.5 1955 0.0 0.0 1.1 0.0
April 58.0 43.8 50.9 81 12/1951 34 20/1961 53.5 1951 47.2 1955 0.0 0.0 0.0 0.0
May 65.2 49.1 57.2 92 21/1963 35 01/1954 62.2 1958 53.1 1955 0.2 0.0 0.0 0.0
June 69.7 53.5 61.6 100 09/1955 45 12/1952 65.7 1958 58.1 1954 0.3 0.0 0.0 0.0
July 75.2 56.3 65.8 98 28/1958 48 04/1949 70.6 1958 62.0 1955 1.2 0.0 0.0 0.0
August 74.1 56.7 65.4 97 08/1960 48 22/1960 70.5 1967 62.0 1954 0.5 0.0 0.0 0.0
September 69.0 53.9 61.5 92 15/1967 40 27/1972 66.3 1967 57.8 1972 0.0 0.0 0.0 0.0
October 59.9 48.4 54.1 78 06/1952 32 28/1971 57.3 1965 51.0 1949 0.0 0.0 0.0 0.0
November 52.0 42.9 47.4 73 03/1970 13 15/1955 51.5 1949 41.2 1955 0.0 0.2 1.3 0.0
December 47.2 39.3 43.3 62 13/1952 10 30/1968 47.9 1950 39.0 1948 0.0 0.4 3.1 0.0
Annual 59.7 46.7 53.2 100 19550609 10 19681230 56.2 1958 50.5 1955 2.3 2.7 15.1 0.0
Winter 47.2 38.5 42.9 74 19680229 10 19681230 47.4 1958 37.5 1949 0.0 2.5 12.7 0.0
Spring 58.5 44.4 51.4 92 19630521 22 19550305 53.9 1958 47.3 1955 0.2 0.0 1.1 0.0
Summer 73.0 55.5 64.3 100 19550609 45 19520612 68.3 1958 60.8 1954 2.0 0.0 0.0 0.0
Fall 60.3 48.4 54.3 92 19670915 13 19551115 57.4 1967 51.3 1955 0.0 0.2 1.4 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