WHITE SWAN, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(459191)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 198107
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 43.00 39.00 c 40.00 b 30.00 b 18.00 b 13.00 m 2.00 h 2.00
1949 -8.00 6.00 e 21.00 d 26.00 28.00 c 35.00 a 40.00 a 39.00 c 32.00 q 20.00 l 26.00 15.00 r -8.00
1950 -21.00 c -24.00 20.00 25.00 30.00 a 38.00 43.00 a 41.00 30.00 29.00 18.00 20.00 d -24.00
1951 0.00 15.00 13.00 h 19.00 27.00 37.00 40.00 40.00 e 45.00 u ----- z ----- z 9.00 m 0.00
1952 2.00 12.00 17.00 22.00 25.00 38.00 41.00 a 40.00 38.00 a 28.00 j 16.00 m 13.00 m 2.00
1953 18.00 19.00 20.00 19.00 30.00 38.00 42.00 a 43.00 34.00 a 30.00 21.00 e ----- z 18.00
1954 -16.00 a 14.00 18.00 b 25.00 a 25.00 35.00 a 38.00 42.00 34.00 24.00 18.00 h 10.00 u -16.00
1955 12.00 12.00 a 8.00 23.00 28.00 31.00 34.00 36.00 ----- z 27.00 r 1.00 9.00 a 1.00
1956 -3.00 -13.00 13.00 a 21.00 29.00 37.00 a 42.00 a 40.00 a 30.00 b 21.00 a 5.00 a 3.00 z -13.00
1957 -23.00 d -1.00 23.00 n 27.00 a 38.00 36.00 39.00 b 35.00 c 31.00 c 22.00 f 11.00 t 13.00 a -23.00
1958 20.00 a 22.00 19.00 a 25.00 a 30.00 ----- z 49.00 q 43.00 b 27.00 a 22.00 8.00 h 19.00 e 8.00
1959 -1.00 15.00 a 23.00 a 23.00 b 26.00 b 30.00 b 39.00 b 38.00 32.00 22.00 f 3.00 c 10.00 a -1.00
1960 -4.00 8.00 b 3.00 a 24.00 a 27.00 a 34.00 a 40.00 35.00 30.00 a 24.00 b 18.00 15.00 o -4.00
1961 17.00 c 23.00 19.00 25.00 27.00 b 36.00 b 41.00 a 43.00 27.00 a 21.00 c 15.00 j 6.00 6.00
1962 -1.00 9.00 5.00 b 27.00 26.00 a 33.00 b 34.00 a 37.00 a 33.00 a 28.00 b ----- z 14.00 b -1.00
1963 -5.00 b 0.00 20.00 c 22.00 a 30.00 b 37.00 b 39.00 d 40.00 a 38.00 b 19.00 a 15.00 16.00 w -5.00
1964 12.00 e 17.00 14.00 b 20.00 a 25.00 a 33.00 c 35.00 b 41.00 b 31.00 24.00 c 23.00 v -20.00 e -20.00
1965 ----- z ----- z 13.00 t 27.00 b 29.00 40.00 b 40.00 a 34.00 a 27.00 ----- z ----- z ----- z 13.00
1966 ----- z ----- z ----- z ----- z 30.00 d 33.00 c 40.00 a 40.00 a 36.00 b 25.00 c 20.00 b 14.00 a 14.00
1967 18.00 g 16.00 17.00 b 22.00 31.00 42.00 a 40.00 40.00 b 35.00 28.00 b 12.00 b 5.00 b 5.00
1968 2.00 a 14.00 23.00 17.00 e 30.00 38.00 40.00 41.00 35.00 23.00 21.00 -15.00 -15.00
1969 -10.00 a -1.00 19.00 a 25.00 a 28.00 a 39.00 a 45.00 n 34.00 32.00 22.00 16.00 21.00 a -10.00
1970 4.00 26.00 28.00 24.00 28.00 b 38.00 a 42.00 40.00 22.00 19.00 b 11.00 a 8.00 4.00
1971 10.00 14.00 14.00 25.00 d 37.00 m 34.00 33.00 39.00 f 30.00 10.00 12.00 c 5.00 5.00
1972 -11.00 -7.00 21.00 19.00 30.00 40.00 43.00 c 41.00 c 24.00 20.00 a 24.00 e -6.00 c -11.00
1973 3.00 a 20.00 a 23.00 25.00 31.00 36.00 40.00 38.00 a 38.00 27.00 21.00 6.00 3.00
1974 -14.00 24.00 22.00 29.00 31.00 31.00 39.00 42.00 34.00 27.00 23.00 17.00 -14.00
1975 12.00 8.00 20.00 24.00 33.00 35.00 45.00 39.00 a 38.00 27.00 15.00 15.00 8.00
1976 16.00 9.00 14.00 24.00 30.00 30.00 a 41.00 i 42.00 h 39.00 23.00 9.00 9.00 9.00
1977 0.00 16.00 23.00 23.00 b 28.00 36.00 38.00 d 43.00 w 36.00 30.00 9.00 12.00 0.00
1978 -1.00 23.00 b 24.00 30.00 31.00 42.00 46.00 42.00 35.00 d 20.00 7.00 e ----- z -1.00
1979 -9.00 -8.00 o 22.00 27.00 34.00 42.00 43.00 c 48.00 41.00 32.00 4.00 14.00 -9.00
1980 -8.00 11.00 25.00 29.00 j 34.00 a 39.00 a 43.00 37.00 d 36.00 26.00 k 20.00 m 9.00 q -8.00
1981 26.00 p ----- z 25.00 j 17.00 n ----- z 40.00 d 40.00 b ----- z ----- z ----- z ----- z ----- z 17.00
Period of Record Statistics
MEAN -0.24 10.59 18.39 23.80 29.32 36.55 39.94 39.63 32.77 23.72 14.14 8.38 -1.00
S.D. 11.55 11.46 5.83 3.06 2.89 3.52 3.00 3.05 4.57 4.83 7.34 10.61 11.53
SKEW -0.02 -1.22 -1.08 -0.26 0.79 -0.11 -0.49 0.12 -0.40 -0.62 -0.19 -1.39 -0.56
MAX 20.00 26.00 28.00 30.00 38.00 43.00 46.00 48.00 41.00 32.00 26.00 21.00 8.00
MIN -23.00 -24.00 3.00 17.00 25.00 30.00 33.00 34.00 22.00 10.00 1.00 -20.00 -14.00
NO YRS 29 29 28 30 31 33 31 30 30 25 22 21 3