ELECTRON HEADWORKS, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(452493)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 198005
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 38.00 33.00 38.00 29.00 24.00 23.00 14.00 14.00
1949 2.00 6.00 20.00 25.00 28.00 32.00 34.00 a 38.00 31.00 22.00 a 30.00 10.00 2.00
1950 -6.00 -4.00 22.00 24.00 28.00 30.00 39.00 36.00 28.00 26.00 21.00 28.00 -6.00
1951 6.00 19.00 16.00 24.00 29.00 32.00 38.00 32.00 33.00 24.00 20.00 12.00 6.00
1952 6.00 18.00 23.00 22.00 26.00 32.00 32.00 34.00 31.00 26.00 12.00 18.00 6.00
1953 22.00 20.00 19.00 24.00 27.00 34.00 a 36.00 36.00 32.00 a 26.00 26.00 25.00 19.00
1954 5.00 24.00 18.00 25.00 26.00 33.00 36.00 35.00 29.00 24.00 22.00 17.00 5.00
1955 20.00 14.00 1.00 25.00 26.00 36.00 37.00 36.00 32.00 29.00 -2.00 17.00 -2.00
1956 1.00 2.00 7.00 26.00 29.00 34.00 35.00 39.00 30.00 29.00 21.00 18.00 1.00
1957 -1.00 10.00 26.00 28.00 a 34.00 36.00 37.00 33.00 31.00 a 26.00 22.00 22.00 -1.00
1958 26.00 24.00 23.00 28.00 28.00 40.00 41.00 40.00 32.00 26.00 18.00 26.00 18.00
1959 4.00 23.00 26.00 25.00 28.00 38.00 36.00 34.00 33.00 26.00 19.00 24.00 4.00
1960 15.00 13.00 14.00 28.00 30.00 33.00 37.00 a 36.00 30.00 27.00 22.00 23.00 13.00
1961 22.00 28.00 26.00 26.00 30.00 35.00 38.00 40.00 28.00 27.00 18.00 a 15.00 15.00
1962 6.00 8.00 21.00 a 28.00 29.00 33.00 33.00 38.00 a 34.00 28.00 25.00 17.00 d 6.00
1963 6.00 28.00 25.00 25.00 28.00 38.00 37.00 40.00 35.00 27.00 23.00 20.00 6.00
1964 26.00 22.00 24.00 25.00 27.00 33.00 40.00 39.00 b 33.00 27.00 22.00 1.00 1.00
1965 22.00 26.00 18.00 26.00 27.00 32.00 38.00 32.00 30.00 30.00 26.00 16.00 16.00
1966 20.00 19.00 17.00 26.00 28.00 35.00 38.00 35.00 33.00 27.00 25.00 26.00 17.00
1967 26.00 24.00 20.00 25.00 30.00 37.00 39.00 38.00 35.00 30.00 24.00 15.00 15.00
1968 11.00 19.00 24.00 23.00 30.00 38.00 38.00 38.00 33.00 29.00 26.00 4.00 4.00
1969 6.00 16.00 a 21.00 28.00 27.00 42.00 36.00 33.00 29.00 24.00 24.00 26.00 6.00
1970 14.00 27.00 24.00 27.00 29.00 36.00 37.00 36.00 26.00 24.00 14.00 20.00 14.00
1971 14.00 a 20.00 8.00 26.00 30.00 33.00 33.00 38.00 30.00 a 19.00 a 21.00 17.00 8.00
1972 3.00 6.00 23.00 25.00 29.00 35.00 38.00 38.00 26.00 23.00 25.00 -3.00 -3.00
1973 3.00 20.00 26.00 25.00 29.00 34.00 37.00 32.00 31.00 28.00 21.00 26.00 3.00
1974 4.00 25.00 15.00 26.00 30.00 34.00 d 38.00 37.00 30.00 27.00 25.00 19.00 4.00
1975 16.00 16.00 20.00 24.00 29.00 32.00 42.00 37.00 33.00 28.00 15.00 20.00 15.00
1976 23.00 14.00 14.00 25.00 28.00 28.00 35.00 36.00 33.00 27.00 20.00 23.00 14.00
1977 14.00 26.00 27.00 28.00 29.00 33.00 36.00 38.00 30.00 28.00 8.00 21.00 8.00
1978 17.00 22.00 23.00 26.00 29.00 33.00 39.00 39.00 32.00 26.00 14.00 -1.00 -1.00
1979 -1.00 8.00 26.00 27.00 30.00 33.00 37.00 37.00 33.00 32.00 25.00 27.00 -1.00
1980 2.00 23.00 28.00 30.00 30.00 c ----- z ----- z ----- z ----- z ----- z ----- z ----- z 2.00
Period of Record Statistics
MEAN 11.06 17.69 20.16 25.78 28.66 34.44 36.88 36.50 31.09 26.44 20.47 17.59 6.87
S.D. 9.29 8.07 6.25 1.72 1.60 2.91 2.30 2.40 2.29 2.58 6.21 8.10 7.10
SKEW 0.16 -0.87 -1.29 0.27 0.77 0.49 -0.15 -0.46 -0.43 -0.54 -1.73 -1.08 0.16
MAX 26.00 28.00 28.00 30.00 34.00 42.00 42.00 40.00 35.00 32.00 30.00 28.00 19.00
MIN -6.00 -4.00 1.00 22.00 26.00 28.00 32.00 32.00 26.00 19.00 -2.00 -3.00 -6.00
NO YRS 32 32 32 32 32 32 32 32 32 32 32 32 30