YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 11.97 | 5.03 | 8.50 | j | ||
1896 | 12.74 | 9.64 | d | 17.26 | 22.86 | b | 31.23 | 37.13 | 43.29 | 41.61 | 36.23 | 28.10 | 13.10 | a | 11.94 | 25.43 | ||||||||||
1897 | 6.84 | 6.25 | 9.32 | 21.27 | 32.26 | 33.33 | 37.71 | ----- | z | 39.77 | 27.94 | 15.80 | 6.13 | 21.51 | a | |||||||||||
1898 | 2.13 | 9.79 | 8.94 | 24.10 | 27.03 | 33.60 | 40.87 | 41.13 | 29.90 | 23.10 | 12.00 | a | ----- | z | 22.96 | a | ||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | 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 | 40.33 | m | 34.62 | a | 25.74 | 15.60 | 13.97 | 22.48 | h | |||
1959 | 6.94 | 8.00 | 12.43 | a | 22.47 | 29.65 | 35.30 | 39.29 | 41.65 | 32.13 | 25.55 | 14.53 | 12.48 | 23.37 | ||||||||||||
1960 | 0.80 | a | -0.17 | 16.60 | a | 22.77 | 27.16 | 35.17 | 39.61 | 38.77 | a | 34.70 | 26.33 | a | 15.87 | 5.97 | 21.96 | |||||||||
1961 | 3.55 | 8.32 | 15.68 | 21.20 | 28.81 | 33.90 | 39.00 | 41.52 | 32.17 | 24.19 | 11.80 | 5.58 | 22.14 | |||||||||||||
1962 | 5.68 | 11.29 | 6.00 | 23.93 | 29.32 | 31.27 | 37.71 | 36.39 | 33.47 | 26.61 | 18.83 | 10.35 | 22.57 | |||||||||||||
1963 | 1.74 | 8.93 | a | 10.13 | 22.67 | 29.55 | 31.60 | 40.71 | 42.74 | 36.10 | 28.94 | 17.47 | 6.52 | 23.09 | ||||||||||||
1964 | 0.42 | 0.38 | 6.39 | 18.40 | 27.55 | 31.73 | 41.77 | 38.65 | 32.93 | 24.61 | 12.90 | 3.97 | 19.98 | |||||||||||||
1965 | 8.94 | 2.54 | 7.52 | 20.57 | 26.84 | 31.40 | 41.42 | 38.65 | 31.90 | 24.42 | 19.21 | a | 9.23 | 21.88 | ||||||||||||
1966 | -0.68 | -1.11 | 13.58 | 21.43 | 28.97 | 33.33 | 41.61 | 40.39 | 32.53 | 24.71 | 18.18 | b | 5.97 | 21.58 | ||||||||||||
1967 | 3.33 | a | 6.50 | 18.00 | 21.83 | 26.48 | 33.07 | 42.32 | 39.39 | 34.17 | 26.35 | 19.13 | 6.03 | 23.05 | ||||||||||||
1968 | 4.39 | 10.48 | 11.55 | 16.60 | 27.42 | 32.37 | 39.71 | 37.52 | 29.50 | 25.39 | 15.07 | 4.13 | 21.18 | |||||||||||||
1969 | 10.87 | 3.52 | a | 5.71 | 22.20 | 28.74 | 31.90 | 41.61 | 42.06 | 34.03 | 22.39 | 12.66 | a | 10.16 | 22.15 | |||||||||||
1970 | 2.30 | a | 9.79 | 9.39 | 14.50 | 25.94 | 33.83 | 41.03 | a | 42.71 | 31.57 | 22.35 | 16.83 | 3.71 | 21.16 | |||||||||||
1971 | 5.47 | a | 5.48 | a | 10.32 | 20.23 | 25.52 | 31.97 | 38.90 | 40.71 | 27.97 | 22.58 | 12.03 | 4.07 | a | 20.44 | ||||||||||
1972 | 1.48 | 7.41 | 19.65 | 21.80 | 25.84 | 35.27 | 38.45 | 38.13 | 33.83 | 31.00 | a | 10.03 | 0.68 | 21.96 | ||||||||||||
1973 | -0.33 | a | 4.50 | 9.94 | 14.34 | a | 26.94 | 32.03 | 37.74 | 38.10 | 28.97 | 22.71 | 15.80 | 5.97 | a | 19.72 | ||||||||||
1974 | 1.81 | -1.07 | 16.10 | 17.53 | 27.35 | 33.90 | a | 40.26 | 36.10 | 31.30 | 27.48 | 11.69 | a | 2.97 | 20.45 | |||||||||||
1975 | 5.45 | 3.25 | 11.58 | 15.27 | 24.77 | 30.33 | 39.77 | 35.48 | 31.67 | 20.13 | 12.45 | a | 6.10 | 19.69 | ||||||||||||
1976 | 2.97 | 9.48 | 8.00 | 21.67 | 28.29 | 30.27 | 39.16 | 36.71 | 33.47 | 20.52 | 13.50 | 5.55 | 20.80 | |||||||||||||
1977 | -0.03 | 6.68 | 7.42 | 21.27 | 25.84 | 34.20 | 39.55 | 38.61 | 31.87 | 25.23 | 17.24 | a | 10.97 | 21.57 | ||||||||||||
1978 | 8.10 | 4.23 | b | 19.10 | 23.10 | a | 27.55 | 34.23 | 39.32 | 36.87 | 33.53 | 26.10 | a | 16.50 | 0.90 | a | 22.46 | |||||||||
1979 | 1.32 | 3.04 | 10.40 | a | 18.33 | ----- | z | 32.90 | 38.48 | 37.84 | 32.47 | 25.52 | 8.73 | 9.16 | 19.84 | a | ||||||||||
1980 | 12.07 | a | 9.79 | 9.47 | a | 17.57 | 27.32 | 32.53 | 39.68 | 38.97 | 33.23 | 22.77 | 16.53 | 18.32 | 23.19 | |||||||||||
1981 | 15.58 | 11.54 | 14.32 | 25.83 | 30.26 | 37.83 | 42.13 | 38.55 | 33.57 | 25.03 | 18.20 | 10.58 | 25.29 | |||||||||||||
1982 | 5.71 | 6.46 | 14.48 | 20.70 | 28.10 | 31.23 | 38.06 | 41.74 | 34.77 | 20.81 | 13.03 | 5.71 | 21.73 | |||||||||||||
1983 | 7.65 | 9.46 | 16.23 | 15.90 | 26.27 | a | 33.23 | 40.52 | 41.65 | 34.07 | 25.48 | 15.62 | a | 9.42 | 22.96 | |||||||||||
1984 | 1.26 | 6.10 | 11.87 | 16.40 | 23.52 | 26.07 | 33.03 | 31.97 | 23.40 | 16.65 | 10.57 | 6.19 | 17.25 | |||||||||||||
1985 | 1.13 | -0.32 | 14.63 | a | 24.57 | 30.48 | 35.87 | 41.58 | 37.55 | 30.27 | 25.42 | 14.60 | 5.55 | 21.78 | ||||||||||||
1986 | 10.10 | 13.14 | 17.32 | 22.73 | 26.48 | 36.53 | 40.52 | 41.65 | 33.57 | 26.48 | 17.90 | 9.87 | 24.69 | |||||||||||||
1987 | 8.39 | 12.46 | 11.10 | a | 23.27 | 31.58 | 36.53 | 39.40 | a | 40.84 | 32.27 | 27.97 | 17.03 | 9.10 | a | 24.16 | ||||||||||
1988 | 5.23 | a | 10.75 | a | 12.57 | a | 24.48 | a | 30.10 | a | 39.77 | 42.68 | 43.13 | 33.83 | 29.00 | 15.57 | 8.97 | 24.67 | ||||||||
1989 | 3.20 | a | 13.48 | a | 21.00 | 27.57 | 30.90 | 35.87 | 40.16 | 36.74 | 32.90 | 23.84 | 16.30 | 6.45 | 24.03 | |||||||||||
1990 | 5.65 | 9.61 | 16.58 | 25.59 | c | 26.81 | 35.30 | 38.58 | 27.48 | 31.47 | 27.06 | 19.07 | b | 3.31 | b | 22.21 | ||||||||||
1991 | 3.13 | 12.41 | a | 14.07 | a | 19.83 | 29.97 | 35.67 | c | 42.45 | 42.03 | 33.14 | a | 23.26 | 12.23 | 2.48 | 22.56 | |||||||||
1992 | 0.67 | a | 7.39 | a | 14.23 | 22.53 | 28.19 | 30.43 | 35.32 | 35.81 | 29.97 | 25.00 | 8.79 | a | 2.84 | 20.10 | ||||||||||
1993 | 7.97 | a | 9.71 | 14.37 | a | 20.70 | ----- | z | ----- | z | 36.86 | j | 39.10 | 29.77 | 23.63 | d | 10.67 | 5.35 | 17.92 | c | ||||||
1994 | 4.13 | 4.39 | 14.58 | 23.90 | 28.23 | 34.46 | d | 39.47 | a | 41.14 | i | 34.00 | g | 25.23 | a | 12.00 | a | 9.10 | b | 19.55 | b | |||||
1995 | 6.96 | c | 15.59 | a | 16.03 | b | 20.28 | a | 28.21 | c | 33.60 | 39.10 | 43.83 | a | 35.07 | ----- | z | 18.80 | 10.54 | c | 24.36 | a | ||||
1996 | 5.43 | a | 14.55 | 13.39 | 21.70 | c | 31.17 | g | 37.80 | 43.33 | a | 40.50 | a | 32.83 | a | 23.81 | d | 16.56 | c | 7.57 | c | 23.41 | a | |||
1997 | 7.93 | b | 6.70 | a | 14.97 | a | 19.83 | a | 31.38 | b | 35.83 | 40.90 | a | 41.73 | e | 38.36 | b | 24.03 | a | 15.54 | b | 5.79 | c | 23.58 | ||
1998 | 6.71 | 6.96 | a | 12.26 | 18.76 | a | 28.48 | b | 31.66 | a | 45.03 | a | 42.13 | 36.85 | c | 26.71 | 16.41 | a | 8.23 | a | 23.35 | |||||
1999 | 11.43 | a | 9.71 | 20.26 | 19.00 | b | 27.60 | a | 34.33 | 44.17 | b | 43.53 | a | 33.60 | 24.74 | 18.90 | 8.23 | 24.63 | ||||||||
2000 | 9.87 | 12.24 | 15.23 | 23.97 | 30.07 | a | 36.39 | l | 41.87 | 44.35 | 34.87 | 27.52 | 7.66 | a | 8.38 | b | 23.27 | a | ||||||||
2001 | 3.38 | b | 8.11 | 15.39 | 23.62 | d | 30.41 | b | 34.62 | a | 43.50 | a | 41.03 | a | ----- | z | ----- | z | ----- | z | ----- | z | 25.01 | d | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 5.21 | 7.55 | 13.16 | 21.07 | 28.22 | 33.71 | 40.24 | 39.45 | 32.86 | 24.94 | 14.70 | 7.16 | 22.24 | |||||||||||||
S.D. | 3.88 | 4.18 | 3.88 | 3.06 | 1.97 | 2.48 | 2.24 | 3.23 | 2.73 | 2.61 | 3.09 | 3.46 | 1.76 | |||||||||||||
SKEW | 0.56 | -0.38 | -0.06 | -0.42 | 0.01 | -0.23 | -0.52 | -1.31 | -0.55 | -0.55 | -0.37 | 0.66 | -0.37 | |||||||||||||
MAX | 15.58 | 15.59 | 21.00 | 27.57 | 32.26 | 39.77 | 45.03 | 44.35 | 39.77 | 31.00 | 19.21 | 18.32 | 25.43 | |||||||||||||
MIN | -0.68 | -1.11 | 5.71 | 14.34 | 23.52 | 26.07 | 33.03 | 27.48 | 23.40 | 16.65 | 7.66 | 0.68 | 17.25 | |||||||||||||
YRS | 46 | 46 | 46 | 46 | 43 | 44 | 45 | 44 | 45 | 45 | 47 | 46 | 37 |