WHITE SWAN, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(459191)

File last updated on Apr 4, 2013
*** 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
1927 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 12.00 k 20.00 3.00 b 3.00
1928 6.00 14.00 15.00 24.00 24.00 31.00 42.00 40.00 30.00 21.00 18.00 7.00 6.00
1929 -15.00 -19.00 21.00 20.00 29.00 35.00 38.00 36.00 31.00 24.00 10.00 8.00 -19.00
1930 -30.00 14.00 21.00 28.00 25.00 b 31.00 a 34.00 a 41.00 32.00 18.00 ----- z ----- z -30.00
1931 ----- z ----- z 24.00 w 21.00 32.00 30.00 a 41.00 d 38.00 e 35.00 d 27.00 o ----- z ----- z 21.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.00 s 33.00 a 25.00 a 20.00 k -5.00 -5.00
1933 3.00 ----- z 20.00 20.00 a 33.00 m 30.00 38.00 38.00 23.00 22.00 c 16.00 b 19.00 3.00
1934 25.00 24.00 e 20.00 b 25.00 32.00 35.00 38.00 39.00 a 30.00 31.00 a 24.00 20.00 20.00
1935 -12.00 19.00 19.00 22.00 30.00 36.00 38.00 38.00 33.00 n 15.00 4.00 a 19.00 -12.00
1936 5.00 -6.00 22.00 y 17.00 a 33.00 a 43.00 39.00 41.00 a 28.00 b 25.00 c 10.00 e 12.00 -6.00
1937 -15.00 -4.00 28.00 26.00 a 31.00 a 37.00 41.00 d 37.00 32.00 a 30.00 u 19.00 17.00 -15.00
1938 19.00 15.00 a 21.00 23.00 28.00 c 39.00 45.00 a 36.00 a 41.00 ----- z 9.00 9.00 9.00
1939 18.00 8.00 17.00 a 24.00 31.00 33.00 b 40.00 a 35.00 33.00 29.00 i 19.00 k 15.00 8.00
1940 9.00 c 7.00 a 23.00 30.00 30.00 36.00 a 41.00 b 42.00 a 36.00 a 38.00 u 14.00 6.00 6.00
1941 20.00 21.00 a 17.00 28.00 33.00 35.00 44.00 a 42.00 a 31.00 f ----- z 20.00 15.00 15.00
1942 -2.00 18.00 21.00 b 34.00 30.00 36.00 41.00 a 40.00 36.00 27.00 f 23.00 10.00 -2.00
1943 -12.00 6.00 17.00 27.00 29.00 32.00 35.00 40.00 35.00 24.00 a 24.00 c 14.00 -12.00
1944 3.00 20.00 12.00 22.00 a 29.00 34.00 37.00 39.00 31.00 30.00 ----- z 10.00 c 3.00
1945 19.00 18.00 13.00 a 25.00 ----- z 58.00 z 47.00 c 44.00 d 36.00 26.00 h 15.00 d 10.00 j 10.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 14.00 t 7.00 21.00 a 29.00 34.00 a 39.00 a 44.00 38.00 38.00 o 32.00 22.00 18.00 b 7.00
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 0.76 10.42 18.66 24.15 29.55 35.96 40.02 39.44 32.72 23.89 15.11 9.82 -4.67
S.D. 13.13 11.37 5.18 3.51 2.83 3.58 3.13 2.80 4.36 4.91 6.89 9.08 11.66
SKEW -0.14 -1.18 -1.01 0.18 0.32 0.08 -0.18 0.20 -0.38 -0.43 -0.36 -1.53 -0.06
MAX 25.00 26.00 28.00 34.00 38.00 43.00 47.00 48.00 41.00 32.00 26.00 21.00 8.00
MIN -30.00 -24.00 3.00 17.00 24.00 30.00 33.00 34.00 22.00 10.00 1.00 -20.00 -19.00
NO YRS 45 45 44 48 47 50 49 48 46 36 37 38 6