SEATTLE UNIV OF WASHING, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(457478)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 198307
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1948 ----- z ----- z ----- z ----- z ----- z 48.00 a 48.00 50.00 39.00 35.00 29.00 22.00 22.00
1949 13.00 21.00 30.00 36.00 35.00 43.00 44.00 49.00 41.00 29.00 36.00 23.00 13.00
1950 6.00 8.00 29.00 31.00 35.00 44.00 49.00 47.00 40.00 38.00 29.00 32.00 a 6.00
1951 15.00 27.00 26.00 31.00 a 38.00 44.00 50.00 49.00 42.00 33.00 29.00 20.00 15.00
1952 18.00 29.00 29.00 30.00 34.00 41.00 f 45.00 a 48.00 44.00 38.00 25.00 27.00 a 18.00
1953 30.00 31.00 30.00 32.00 40.00 41.00 48.00 50.00 45.00 37.00 34.00 32.00 30.00
1954 22.00 30.00 23.00 a 37.00 37.00 e 42.00 45.00 49.00 45.00 34.00 35.00 31.00 22.00
1955 29.00 a 25.00 a 17.00 31.00 38.00 36.00 47.00 46.00 42.00 39.00 10.00 a 25.00 a 10.00
1956 18.00 a 15.00 25.00 31.00 39.00 44.00 48.00 51.00 47.00 34.00 d 30.00 18.00 15.00
1957 13.00 22.00 34.00 34.00 46.00 43.00 f ----- z ----- z 42.00 h 38.00 f 30.00 32.00 13.00
1958 40.00 z 33.00 31.00 a 39.00 40.00 a 52.00 a 53.00 a 53.00 b 45.00 e 38.00 c 25.00 g ----- z 25.00
1959 14.00 a 31.00 d 34.00 a 36.00 36.00 45.00 50.00 d 50.00 a 46.00 a 38.00 27.00 30.00 14.00
1960 26.00 28.00 25.00 37.00 40.00 46.00 48.00 46.00 42.00 40.00 c 32.00 28.00 o 25.00
1961 29.00 f 34.00 30.00 d ----- z 41.00 r 45.00 i 51.00 n 52.00 j 44.00 k 36.00 c 30.00 e 31.00 q 29.00
1962 16.00 d 21.00 26.00 k 36.00 b 37.00 43.00 i 45.00 f 48.00 j 43.00 i 42.00 b 33.00 c 28.00 a 16.00
1963 17.00 33.00 31.00 c 33.00 a 40.00 48.00 a 48.00 b 51.00 47.00 a 39.00 f 31.00 25.00 b 17.00
1964 ----- z ----- z 32.00 35.00 37.00 44.00 ----- z ----- z 46.00 39.00 30.00 i 10.00 10.00
1965 24.00 33.00 28.00 36.00 36.00 45.00 50.00 48.00 42.00 43.00 32.00 25.00 24.00
1966 29.00 30.00 29.00 a 36.00 41.00 47.00 51.00 50.00 48.00 41.00 33.00 33.00 29.00
1967 28.00 30.00 28.00 34.00 43.00 51.00 51.00 53.00 48.00 36.00 31.00 24.00 24.00
1968 25.00 29.00 33.00 32.00 35.00 48.00 52.00 53.00 45.00 40.00 34.00 8.00 8.00
1969 16.00 29.00 29.00 36.00 38.00 50.00 51.00 48.00 44.00 35.00 32.00 28.00 16.00
1970 24.00 33.00 31.00 36.00 39.00 46.00 52.00 51.00 40.00 b 31.00 25.00 25.00 24.00
1971 24.00 27.00 24.00 35.00 42.00 46.00 46.00 52.00 44.00 28.00 32.00 25.00 24.00
1972 12.00 21.00 31.00 33.00 37.00 46.00 45.00 52.00 37.00 35.00 35.00 13.00 12.00
1973 18.00 29.00 32.00 37.00 41.00 42.00 49.00 48.00 47.00 40.00 32.00 33.00 18.00
1974 21.00 32.00 29.00 35.00 a 38.00 45.00 49.00 52.00 43.00 38.00 32.00 30.00 21.00
1975 27.00 29.00 30.00 33.00 39.00 47.00 52.00 50.00 47.00 37.00 25.00 29.00 25.00
1976 28.00 24.00 26.00 33.00 42.00 42.00 50.00 52.00 48.00 39.00 27.00 31.00 24.00
1977 25.00 32.00 34.00 37.00 39.00 46.00 50.00 51.00 45.00 40.00 21.00 29.00 21.00
1978 26.00 32.00 28.00 34.00 40.00 49.00 a 50.00 51.00 46.00 36.00 26.00 16.00 a 16.00
1979 18.00 j 21.00 j 34.00 38.00 d 45.00 46.00 ----- z 48.00 m 49.00 a 40.00 31.00 29.00 18.00
1980 12.00 a 29.00 30.00 36.00 41.00 a 45.00 c 51.00 47.00 47.00 38.00 33.00 24.00 12.00
1981 28.00 a 23.00 d 28.00 32.00 b 40.00 45.00 48.00 d 49.00 43.00 35.00 29.00 27.00 23.00
1982 9.00 26.00 28.00 32.00 40.00 45.00 48.00 49.00 45.00 33.00 27.00 25.00 9.00
1983 22.00 30.00 24.00 29.00 42.00 49.00 44.00 ----- z ----- z ----- z ----- z ----- z 22.00
Period of Record Statistics
MEAN 20.48 27.45 28.88 34.21 39.12 45.53 48.77 49.83 44.34 36.82 29.61 25.28 18.00
S.D. 6.66 5.65 3.65 2.51 2.79 3.14 2.46 2.02 2.92 3.49 4.90 6.47 6.98
SKEW -0.35 -1.58 -0.99 -0.19 0.33 -0.49 -0.40 -0.18 -0.59 -0.67 -2.05 -1.13 -0.01
MAX 30.00 34.00 34.00 39.00 46.00 52.00 53.00 53.00 49.00 43.00 36.00 33.00 30.00
MIN 6.00 8.00 17.00 29.00 34.00 36.00 44.00 46.00 37.00 28.00 10.00 8.00 6.00
NO YRS 31 33 34 34 34 32 31 30 32 33 33 32 22