ASPEN stat,

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(050370)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197911
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
1899 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1900 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1901 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1902 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1903 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1904 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1905 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1906 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1907 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1908 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1909 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1910 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1911 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1912 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1913 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1914 -12.00 a -6.00 0.00 10.00 29.00 20.00 f 37.00 32.00 21.00 15.00 6.00 -13.00 -13.00
1915 -21.00 -10.00 2.00 12.00 15.00 27.00 34.00 34.00 27.00 19.00 -7.00 a -14.00 -21.00
1916 -20.00 -23.00 -4.00 13.00 a 15.00 e 25.00 a 38.00 35.00 c 25.00 b 15.00 -14.00 -20.00 -23.00
1917 -13.00 a -21.00 -11.00 -3.00 18.00 25.00 38.00 33.00 22.00 4.00 6.00 0.00 -21.00
1918 -17.00 -18.00 -1.00 6.00 18.00 a 30.00 38.00 36.00 29.00 10.00 -5.00 -16.00 -18.00
1919 -25.00 -11.00 -10.00 14.00 25.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z -25.00
1920 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1921 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1922 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1923 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1924 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1925 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1926 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1927 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1928 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1929 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1930 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1931 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 ----- z ----- z ----- z ----- z ----- z 20.00 c 39.00 40.00 21.00 21.00 -1.00 -6.00 -6.00
1935 -24.00 -8.00 -6.00 12.00 22.00 30.00 37.00 41.00 26.00 4.00 5.00 -7.00 -24.00
1936 -9.00 -17.00 4.00 -2.00 24.00 30.00 39.00 37.00 24.00 20.00 e 0.00 -3.00 -17.00
1937 -25.00 -13.00 5.00 13.00 25.00 24.00 40.00 38.00 26.00 20.00 1.00 -3.00 -25.00
1938 -6.00 -10.00 -1.00 3.00 14.00 34.00 36.00 38.00 29.00 16.00 -11.00 -12.00 -12.00
1939 -10.00 -20.00 -13.00 10.00 21.00 15.00 34.00 34.00 23.00 16.00 9.00 -9.00 -20.00
1940 -29.00 -11.00 1.00 13.00 c 26.00 24.00 39.00 37.00 33.00 17.00 -11.00 -12.00 a -29.00
1941 -12.00 -7.00 -6.00 17.00 28.00 29.00 33.00 33.00 22.00 16.00 -9.00 -12.00 -12.00
1942 -19.00 -27.00 -12.00 13.00 20.00 g 31.00 39.00 37.00 20.00 a 10.00 a -5.00 -3.00 g -27.00
1943 -37.00 -22.00 -26.00 10.00 16.00 21.00 35.00 31.00 30.00 h 17.00 0.00 -4.00 -37.00
1944 -15.00 -8.00 -4.00 5.00 21.00 29.00 39.00 29.00 29.00 20.00 5.00 a -16.00 -16.00
1945 -5.00 -5.00 -6.00 -10.00 24.00 24.00 32.00 37.00 20.00 12.00 -6.00 -17.00 -17.00
1946 -16.00 -16.00 7.00 12.00 14.00 27.00 34.00 36.00 15.00 3.00 -8.00 -19.00 -19.00
1947 -27.00 -9.00 -9.00 9.00 25.00 22.00 31.00 37.00 25.00 17.00 -8.00 -13.00 -27.00
1948 -6.00 z ----- z ----- z ----- z ----- z ----- z ----- z 32.00 25.00 14.00 -9.00 -13.00 -13.00
1949 -21.00 a -21.00 8.00 14.00 25.00 25.00 34.00 35.00 28.00 10.00 g 7.00 -8.00 -21.00
1950 -19.00 g -15.00 -12.00 12.00 18.00 23.00 32.00 b 31.00 a 29.00 a 22.00 a -8.00 -6.00 -19.00
1951 -8.00 -30.00 -1.00 6.00 17.00 27.00 35.00 35.00 a 25.00 13.00 a -11.00 -12.00 -30.00
1952 -20.00 b -16.00 a -10.00 b 9.00 a 26.00 30.00 b 34.00 35.00 a 30.00 b 12.00 -16.00 -14.00 a -20.00
1953 -6.00 -13.00 -4.00 4.00 b 14.00 28.00 38.00 37.00 30.00 17.00 -3.00 -13.00 -13.00
1954 -5.00 2.00 -2.00 16.00 21.00 24.00 37.00 35.00 27.00 a 13.00 4.00 -12.00 -12.00
1955 -12.00 -24.00 -7.00 3.00 20.00 24.00 31.00 32.00 a 20.00 10.00 b -19.00 d -10.00 -24.00
1956 -2.00 -20.00 -7.00 7.00 20.00 31.00 36.00 a 31.00 27.00 13.00 -7.00 -13.00 -20.00
1957 -12.00 -5.00 2.00 2.00 20.00 29.00 40.00 38.00 21.00 17.00 -12.00 -6.00 -12.00
1958 -13.00 -3.00 -1.00 10.00 19.00 a 34.00 35.00 36.00 26.00 15.00 -7.00 -7.00 -13.00
1959 -15.00 -12.00 -3.00 10.00 20.00 29.00 32.00 35.00 19.00 15.00 -1.00 -5.00 -15.00
1960 -6.00 a -10.00 -1.00 11.00 20.00 31.00 37.00 b 31.00 30.00 9.00 -2.00 -8.00 -10.00
1961 -10.00 -4.00 3.00 6.00 21.00 30.00 35.00 41.00 15.00 15.00 -2.00 -19.00 -19.00
1962 -28.00 -20.00 -10.00 20.00 14.00 28.00 35.00 30.00 21.00 24.00 14.00 -18.00 -28.00
1963 -33.00 -5.00 -6.00 9.00 26.00 30.00 36.00 40.00 33.00 25.00 2.00 -10.00 -33.00
1964 -20.00 -14.00 -10.00 11.00 20.00 31.00 43.00 29.00 29.00 18.00 3.00 -12.00 -20.00
1965 -3.00 -10.00 -14.00 14.00 22.00 33.00 41.00 38.00 23.00 22.00 -2.00 -3.00 -14.00
1966 -14.00 ----- z -13.00 7.00 26.00 29.00 39.00 29.00 30.00 10.00 4.00 -13.00 -14.00
1967 -14.00 -8.00 -4.00 14.00 17.00 31.00 40.00 37.00 26.00 10.00 1.00 -9.00 -14.00
1968 -8.00 -4.00 -1.00 7.00 15.00 27.00 34.00 28.00 25.00 13.00 -3.00 -8.00 -8.00
1969 -7.00 -11.00 -3.00 18.00 31.00 b 29.00 38.00 41.00 26.00 16.00 a -3.00 -10.00 -11.00
1970 -14.00 -2.00 -4.00 1.00 16.00 25.00 a 37.00 38.00 20.00 8.00 4.00 -1.00 -14.00
1971 -22.00 -8.00 -8.00 9.00 24.00 31.00 39.00 40.00 a 15.00 6.00 -2.00 -7.00 -22.00
1972 -17.00 -10.00 9.00 ----- z 16.00 38.00 38.00 35.00 a 28.00 6.00 b -5.00 -13.00 -17.00
1973 -12.00 -4.00 2.00 a -1.00 21.00 23.00 36.00 40.00 23.00 17.00 3.00 -5.00 -12.00
1974 -17.00 -12.00 6.00 8.00 23.00 28.00 39.00 a 33.00 24.00 22.00 2.00 -6.00 -17.00
1975 -20.00 -10.00 -10.00 4.00 19.00 28.00 41.00 c 35.00 21.00 3.00 -7.00 -4.00 a -20.00
1976 -17.00 -6.00 a -6.00 19.00 23.00 24.00 41.00 36.00 27.00 c 13.00 a -16.00 -1.00 -17.00
1977 -6.00 b 4.00 -2.00 b 12.00 23.00 38.00 41.00 29.00 28.00 e 12.00 a 11.00 17.00 q -6.00
1978 -7.00 q -8.00 n ----- z ----- z ----- z 37.00 h 40.00 27.00 19.00 18.00 5.00 a -21.00 -21.00
1979 -25.00 -9.00 -2.00 h 4.00 b 23.00 b 27.00 a 38.00 ----- z 27.00 7.00 -9.00 ----- z -25.00
Period of Record Statistics
MEAN -15.60 -11.71 -4.15 8.81 20.83 27.75 36.88 34.88 24.68 14.14 -2.69 -10.06 -18.11
S.D. 8.09 7.37 6.72 5.97 4.31 4.33 2.91 3.70 4.38 5.49 7.30 5.31 6.13
SKEW -0.49 -0.37 -0.43 -0.70 0.14 -0.15 -0.23 -0.25 -0.36 -0.25 -0.03 -0.10 -0.63
MAX -2.00 4.00 9.00 20.00 31.00 38.00 43.00 41.00 33.00 25.00 14.00 0.00 -8.00
MIN -37.00 -30.00 -26.00 -10.00 14.00 15.00 31.00 27.00 15.00 3.00 -19.00 -21.00 -33.00
NO YRS 48 48 48 48 48 48 50 50 50 50 51 48 36