YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | 9.46 | c | 22.73 | b | 31.60 | a | 43.64 | b | 60.50 | a | 78.48 | a | 79.23 | 75.55 | 66.23 | 53.97 | b | 36.57 | b | 20.25 | c | 48.18 | ||||
1894 | 21.00 | 26.00 | c | 38.52 | b | 53.79 | a | 59.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.71 | g | ||
1895 | ----- | z | ----- | z | 31.93 | a | 56.63 | 68.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.31 | i | ||
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 | 18.90 | j | 30.81 | g | 53.27 | i | ----- | 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 | 18.84 | 22.39 | 39.29 | 50.73 | 69.42 | 74.27 | 76.16 | 76.42 | 63.67 | 56.97 | 39.27 | 25.19 | 51.05 | |||||||||||||
1963 | 12.57 | a | 20.32 | 40.35 | 55.73 | 65.29 | 77.90 | 81.71 | 75.00 | 69.23 | 69.42 | 44.70 | 21.77 | 52.83 | ||||||||||||
1964 | 28.58 | 29.59 | 33.68 | 52.10 | 70.10 | a | 74.97 | 80.16 | 70.00 | 63.93 | a | 54.52 | b | 41.30 | 23.84 | 51.90 | ||||||||||
1965 | 21.45 | b | 22.36 | 30.55 | 46.83 | a | 67.58 | 71.97 | a | 74.74 | 73.52 | 60.59 | a | 53.80 | a | 38.23 | 30.03 | 49.30 | ||||||||
1966 | 17.29 | 24.75 | 37.55 | 45.80 | 58.77 | 76.83 | 82.27 | a | 71.90 | 67.67 | 52.90 | 34.10 | 25.42 | 49.60 | ||||||||||||
1967 | 25.55 | b | 19.61 | 34.94 | 50.93 | 57.93 | a | 72.13 | 75.52 | 73.13 | 67.33 | 50.61 | 33.63 | 27.90 | 49.10 | |||||||||||
1968 | 20.16 | 22.00 | 42.42 | 51.87 | 60.77 | 71.20 | 75.45 | 75.42 | 66.43 | 56.65 | 37.17 | 24.97 | 50.38 | |||||||||||||
1969 | 21.35 | 27.57 | 34.52 | 51.80 | 65.13 | 64.07 | 76.23 | 81.87 | 67.77 | 49.23 | 37.80 | 26.84 | 50.35 | |||||||||||||
1970 | 16.77 | 22.96 | 33.58 | 50.63 | 59.74 | 75.60 | 81.29 | 79.16 | 66.03 | 56.16 | 37.70 | 25.45 | 50.42 | |||||||||||||
1971 | 16.29 | 23.29 | 31.77 | 50.20 | 60.45 | 76.90 | 73.71 | 74.03 | 67.73 | 59.97 | 38.03 | 26.68 | 49.92 | |||||||||||||
1972 | 16.90 | 20.48 | 31.19 | 45.37 | 70.48 | 71.13 | 74.00 | 73.87 | 64.17 | 48.90 | 34.60 | 20.00 | 47.59 | |||||||||||||
1973 | 26.19 | 25.68 | 43.61 | 48.03 | 57.94 | 72.50 | 77.84 | 76.55 | 66.23 | 60.55 | 36.37 | 25.45 | 51.41 | |||||||||||||
1974 | 19.87 | 23.89 | 34.00 | 50.57 | 61.23 | 70.53 | 80.06 | 74.97 | 61.57 | 54.03 | b | 40.40 | 31.19 | 50.19 | ||||||||||||
1975 | 23.77 | 27.11 | 33.39 | 45.30 | 70.84 | 73.30 | 81.65 | 78.10 | 63.13 | 57.94 | 45.53 | 25.74 | 52.15 | |||||||||||||
1976 | 18.13 | 30.76 | 34.03 | 53.83 | 62.97 | 78.53 | 81.32 | 79.87 | 68.30 | 50.48 | 32.37 | 17.45 | 50.67 | |||||||||||||
1977 | 12.65 | 26.36 | 41.16 | 56.40 | 76.90 | 71.93 | 80.58 | 71.42 | 63.43 | 54.97 | 37.57 | 23.55 | 51.41 | |||||||||||||
1978 | 19.67 | a | 23.00 | 35.97 | 46.30 | 67.77 | a | 71.67 | 74.71 | 76.16 | 67.10 | 52.74 | 38.53 | 21.19 | 49.57 | |||||||||||
1979 | 12.39 | 17.89 | 34.00 | 46.97 | 57.90 | 71.97 | 79.10 | 71.90 | 67.27 | 48.52 | 35.97 | 28.87 | 47.73 | |||||||||||||
1980 | 22.19 | 22.83 | 32.42 | 51.10 | 71.40 | a | 71.03 | 78.94 | 74.68 | 63.37 | 48.39 | 37.83 | 21.84 | 49.67 | ||||||||||||
1981 | 22.68 | 27.71 | 37.61 | 52.17 | 63.55 | 71.97 | 78.06 | 75.74 | 64.03 | 48.10 | 43.60 | 26.55 | 50.98 | |||||||||||||
1982 | 13.61 | 23.50 | 32.87 | 45.83 | 69.81 | 68.60 | 77.97 | 72.45 | 62.77 | 54.94 | 36.17 | 29.13 | 48.97 | |||||||||||||
1983 | 24.97 | a | 29.81 | a | 34.65 | 45.90 | a | 58.73 | a | 74.33 | 84.13 | 80.52 | 68.67 | 54.29 | 39.17 | a | 16.13 | 50.94 | ||||||||
1984 | 17.71 | 33.82 | a | 30.13 | 54.00 | 61.06 | 76.13 | 77.48 | 78.03 | 64.07 | 56.10 | 38.37 | 25.48 | 51.03 | ||||||||||||
1985 | 19.10 | 21.54 | 40.00 | 54.04 | b | 67.23 | 70.13 | 77.26 | 72.71 | 65.20 | 54.42 | 32.63 | 18.00 | a | 49.35 | |||||||||||
1986 | 22.07 | a | 25.00 | 37.87 | 56.37 | 69.94 | 73.17 | 79.55 | 72.70 | a | 64.80 | 53.42 | 34.40 | 28.00 | 51.44 | |||||||||||
1987 | 26.00 | 34.32 | 43.00 | 58.97 | 68.65 | 78.10 | a | 79.97 | 74.90 | 69.27 | 47.97 | 40.50 | 29.52 | 54.26 | ||||||||||||
1988 | 20.81 | 22.14 | 35.35 | 52.67 | 72.90 | 80.53 | 83.97 | 77.81 | 65.93 | 47.27 | a | 36.80 | 25.45 | 51.80 | ||||||||||||
1989 | 27.52 | 20.79 | 32.74 | 50.54 | d | 67.59 | d | 72.08 | d | 84.85 | e | 78.22 | d | 70.62 | d | 59.38 | g | 32.65 | d | 16.96 | e | 50.41 | a | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.85 | 24.67 | 35.64 | 50.81 | 65.17 | 73.52 | 78.89 | 75.40 | 65.74 | 53.83 | 37.65 | 24.44 | 50.44 | |||||||||||||
S.D. | 4.79 | 4.02 | 3.83 | 4.00 | 5.28 | 3.51 | 3.08 | 2.93 | 2.47 | 4.76 | 3.37 | 4.10 | 1.50 | |||||||||||||
SKEW | -0.20 | 0.78 | 0.60 | 0.02 | 0.17 | -0.18 | 0.09 | 0.33 | -0.08 | 1.12 | 0.54 | -0.48 | 0.22 | |||||||||||||
MAX | 28.58 | 34.32 | 43.61 | 58.97 | 76.90 | 80.53 | 84.85 | 81.87 | 70.62 | 69.42 | 45.53 | 31.19 | 54.26 | |||||||||||||
MIN | 9.46 | 17.89 | 30.13 | 43.64 | 57.90 | 64.07 | 73.71 | 70.00 | 60.59 | 47.27 | 32.37 | 16.13 | 47.59 | |||||||||||||
YRS | 30 | 30 | 31 | 31 | 31 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 |