YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | -25.00 | b | -25.00 | b | -11.00 | b | 14.00 | a | 25.00 | a | 31.00 | b | 41.00 | 37.00 | 25.00 | 16.00 | b | -2.00 | b | -13.00 | c | -25.00 | q | |||
1894 | -22.00 | -27.00 | g | -1.00 | d | 19.00 | 26.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
1895 | ----- | z | ----- | z | -15.00 | a | 18.00 | 22.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | -20.00 | a | -18.00 | -12.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | -26.00 | -35.00 | -35.00 | 4.00 | 27.00 | 29.00 | 35.00 | 33.00 | 24.00 | 19.00 | 8.00 | a | -19.00 | -35.00 | a | |||||||||||
1963 | -34.00 | -33.00 | -20.00 | 15.00 | 17.00 | 31.00 | 34.00 | 31.00 | 24.00 | 25.00 | 4.00 | -21.00 | -34.00 | |||||||||||||
1964 | -16.00 | -28.00 | -12.00 | -2.00 | 24.00 | 25.00 | 38.00 | 32.00 | 22.00 | 18.00 | -16.00 | -23.00 | -28.00 | |||||||||||||
1965 | -35.00 | -31.00 | -23.00 | -0.00 | 24.00 | 28.00 | 33.00 | 29.00 | 21.00 | 19.00 | 5.00 | -10.00 | -35.00 | |||||||||||||
1966 | -22.00 | -30.00 | -10.00 | 8.00 | a | 12.00 | 28.00 | 37.00 | 37.00 | 25.00 | a | 12.00 | -1.00 | -19.00 | -30.00 | b | ||||||||||
1967 | -36.00 | a | -40.00 | a | -29.00 | 10.00 | 16.00 | 32.00 | 34.00 | 30.00 | 25.00 | 18.00 | -5.00 | -22.00 | -40.00 | b | ||||||||||
1968 | -31.00 | -16.00 | -8.00 | 5.00 | 18.00 | 32.00 | 33.00 | 31.00 | 31.00 | 17.00 | 9.00 | -21.00 | -31.00 | |||||||||||||
1969 | -19.00 | -21.00 | -17.00 | 10.00 | 24.00 | 28.00 | 37.00 | 33.00 | 30.00 | 2.00 | -6.00 | -14.00 | -21.00 | |||||||||||||
1970 | -28.00 | -32.00 | -14.00 | 8.00 | 17.00 | 31.00 | 38.00 | 33.00 | 28.00 | 22.00 | -1.00 | -20.00 | -32.00 | |||||||||||||
1971 | -28.00 | -36.00 | -21.00 | -0.00 | 25.00 | 29.00 | 37.00 | 36.00 | 27.00 | 27.00 | 4.00 | -12.00 | -36.00 | |||||||||||||
1972 | -35.00 | -32.00 | -28.00 | -10.00 | 24.00 | 29.00 | 33.00 | 32.00 | 28.00 | 14.00 | -0.00 | -27.00 | -35.00 | |||||||||||||
1973 | -29.00 | -26.00 | 11.00 | 11.00 | 21.00 | 38.00 | 40.00 | 37.00 | 25.00 | 26.00 | 6.00 | -25.00 | -29.00 | |||||||||||||
1974 | -34.00 | -24.00 | -16.00 | 2.00 | 14.00 | 31.00 | 39.00 | 31.00 | 19.00 | 17.00 | 3.00 | -5.00 | -34.00 | |||||||||||||
1975 | -23.00 | -27.00 | -17.00 | -5.00 | 25.00 | 34.00 | 40.00 | 35.00 | 25.00 | 18.00 | 1.00 | -14.00 | -27.00 | |||||||||||||
1976 | -30.00 | -31.00 | -21.00 | 9.00 | 16.00 | 33.00 | 38.00 | 29.00 | 20.00 | 8.00 | -20.00 | -29.00 | -31.00 | |||||||||||||
1977 | -41.00 | -24.00 | -10.00 | -6.00 | 22.00 | 28.00 | 38.00 | 29.00 | 31.00 | a | 21.00 | -3.00 | -35.00 | -41.00 | a | |||||||||||
1978 | -17.00 | a | -30.00 | -20.00 | 15.00 | 21.00 | a | 30.00 | 36.00 | 37.00 | 28.00 | 22.00 | -7.00 | -19.00 | -30.00 | b | ||||||||||
1979 | -33.00 | -42.00 | -15.00 | -4.00 | 18.00 | 31.00 | 35.00 | 34.00 | 29.00 | 22.00 | -5.00 | -15.00 | -42.00 | |||||||||||||
1980 | -26.00 | -22.00 | -24.00 | 13.00 | 28.00 | a | 28.00 | 38.00 | 40.00 | 26.00 | 14.00 | 7.00 | -19.00 | -26.00 | a | |||||||||||
1981 | -31.00 | -28.00 | -8.00 | 13.00 | 22.00 | 37.00 | 37.00 | 35.00 | 28.00 | 8.00 | 5.00 | -14.00 | -31.00 | |||||||||||||
1982 | -35.00 | -31.00 | -21.00 | -7.00 | 28.00 | 28.00 | 38.00 | 30.00 | 29.00 | 21.00 | a | -4.00 | -5.00 | -35.00 | a | |||||||||||
1983 | -21.00 | -23.00 | a | -7.00 | a | 7.00 | 18.00 | a | 31.00 | 36.00 | 41.00 | 29.00 | 20.00 | 7.00 | -31.00 | -31.00 | c | |||||||||
1984 | -33.00 | -10.00 | a | -24.00 | 15.00 | 23.00 | 37.00 | 39.00 | 36.00 | 24.00 | 13.00 | 1.00 | -15.00 | -33.00 | a | |||||||||||
1985 | -22.00 | -35.00 | -16.00 | 2.00 | 26.00 | 31.00 | a | 37.00 | 38.00 | 28.00 | 22.00 | -10.00 | -24.00 | b | -35.00 | c | ||||||||||
1986 | -22.00 | a | -21.00 | -16.00 | 19.00 | 20.00 | 27.00 | 34.00 | 31.00 | b | 28.00 | 21.00 | -6.00 | -18.00 | a | -22.00 | d | |||||||||
1987 | -20.00 | -10.00 | -8.00 | 1.00 | 22.00 | 32.00 | b | 41.00 | 35.00 | a | 29.00 | a | 17.00 | -0.00 | -13.00 | a | -20.00 | e | ||||||||
1988 | -28.00 | a | -25.00 | -14.00 | 15.00 | a | 26.00 | 31.00 | 34.00 | 39.00 | 31.00 | a | 9.00 | 14.00 | -16.00 | -28.00 | c | |||||||||
1989 | -21.00 | -26.00 | a | -27.00 | 6.00 | d | 22.00 | d | 32.00 | d | 43.00 | e | 38.00 | d | 23.00 | d | 17.00 | g | -5.00 | e | -22.00 | f | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -27.19 | -27.07 | -15.91 | 6.61 | 21.71 | 30.76 | 37.00 | 34.10 | 26.28 | 17.43 | -0.59 | -18.50 | -32.00 | |||||||||||||
S.D. | 6.49 | 7.61 | 8.88 | 8.20 | 4.19 | 3.02 | 2.63 | 3.50 | 3.28 | 5.83 | 7.42 | 7.11 | 5.10 | |||||||||||||
SKEW | -0.13 | 0.39 | 0.53 | -0.29 | -0.50 | 0.70 | 0.20 | 0.17 | -0.47 | -0.72 | -0.56 | -0.24 | 0.12 | |||||||||||||
MAX | -16.00 | -10.00 | 11.00 | 19.00 | 28.00 | 38.00 | 43.00 | 41.00 | 31.00 | 27.00 | 14.00 | -5.00 | -21.00 | |||||||||||||
MIN | -41.00 | -42.00 | -35.00 | -10.00 | 12.00 | 25.00 | 33.00 | 29.00 | 19.00 | 2.00 | -20.00 | -35.00 | -42.00 | |||||||||||||
YRS | 31 | 30 | 32 | 31 | 31 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 26 |