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 | 26.47 | 36.84 | 37.33 | 46.71 | 46.90 | 33.27 | 29.16 | 22.57 | 4.26 | 31.50 | c | |||||||||
1895 | 2.16 | 4.21 | 11.03 | 23.80 | 29.17 | g | 39.50 | n | 45.04 | e | 47.71 | 35.53 | 32.55 | ----- | z | ----- | z | 25.25 | d | |||||||
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 | 24.33 | v | 33.80 | 37.94 | 45.03 | 46.65 | 43.84 | 38.60 | 32.77 | ----- | z | ----- | z | 39.80 | e | |||||||
1901 | 6.94 | m | 10.46 | 16.94 | 25.90 | 40.55 | 38.27 | 48.94 | 49.90 | 36.17 | 36.32 | 25.80 | 10.45 | 30.88 | a | |||||||||||
1902 | 10.65 | 18.93 | 12.52 | 28.43 | 34.97 | 40.30 | 42.26 | 45.16 | 36.40 | ----- | z | ----- | z | 7.97 | 27.76 | b | ||||||||||
1903 | ----- | z | ----- | z | 15.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.45 | k | |
1904 | ----- | z | ----- | z | ----- | z | 24.37 | ----- | z | ----- | z | 41.65 | 49.29 | 42.53 | ----- | z | ----- | z | ----- | z | 39.46 | h | ||||
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.37 | ----- | z | 48.42 | 39.80 | 24.48 | 24.77 | 2.26 | 30.02 | f | ||||||
1906 | 5.77 | ----- | z | 15.63 | a | ----- | z | 27.81 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.70 | j | |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | 34.42 | 39.03 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.73 | j | ||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.75 | w | ----- | z |
1909 | 19.38 | b | 14.07 | 21.26 | 25.33 | 34.26 | 43.83 | 47.65 | 48.74 | 38.53 | 31.26 | d | 23.97 | 5.26 | 29.46 | |||||||||||
1910 | 7.90 | 9.46 | 28.13 | 34.87 | 38.06 | 42.63 | 50.68 | 43.70 | a | 40.80 | 33.03 | a | 25.27 | 14.03 | b | 30.71 | ||||||||||
1911 | 11.55 | 6.14 | 19.42 | 26.07 | 34.97 | 44.90 | 47.97 | 44.16 | 37.37 | 29.55 | 18.00 | 10.04 | c | 27.51 | ||||||||||||
1912 | 10.71 | 14.90 | 17.97 | 29.43 | 35.55 | 44.09 | g | 47.27 | a | 46.16 | 35.87 | 29.93 | a | 23.00 | 11.42 | 27.47 | a | |||||||||
1913 | 5.16 | 7.00 | 18.35 | 29.63 | 38.81 | 43.73 | 46.71 | 49.55 | 39.40 | 27.47 | a | 24.93 | 10.10 | 28.40 | ||||||||||||
1914 | 12.61 | 10.32 | 20.19 | 31.93 | 38.53 | a | 41.63 | 48.68 | 45.68 | 37.17 | 34.23 | 22.97 | 5.23 | 29.10 | ||||||||||||
1915 | 7.35 | 18.29 | 23.61 | 35.00 | 35.87 | 37.83 | 44.81 | 51.07 | a | 39.00 | 31.94 | 19.53 | 12.58 | 29.74 | ||||||||||||
1916 | 5.55 | 15.66 | 22.74 | 31.40 | 32.77 | 39.33 | 47.45 | 46.00 | 39.13 | 29.00 | 15.70 | 2.48 | 27.27 | |||||||||||||
1917 | -0.72 | b | 8.25 | 7.48 | 24.20 | 35.61 | 38.97 | 51.06 | 47.42 | 41.83 | 31.35 | 28.27 | 23.16 | 28.07 | ||||||||||||
1918 | 15.03 | 10.68 | 21.32 | 26.53 | 34.19 | 48.77 | 48.03 | 43.10 | 43.07 | 34.19 | 19.47 | 10.90 | 29.61 | |||||||||||||
1919 | 8.58 | 8.82 | 16.10 | 30.20 | 37.29 | 42.37 | 49.42 | 49.33 | a | 40.97 | 24.94 | 19.69 | a | 7.00 | 27.89 | |||||||||||
1920 | 10.16 | 14.38 | 17.23 | 25.80 | 34.42 | 40.40 | 48.94 | 46.48 | 39.07 | 29.29 | 22.53 | 9.94 | 28.22 | |||||||||||||
1921 | 8.70 | a | 8.14 | 20.84 | 25.67 | 37.03 | 43.80 | 47.65 | 45.13 | 31.80 | 30.65 | 21.93 | 14.52 | 27.99 | ||||||||||||
1922 | -0.84 | 6.93 | 14.61 | 24.67 | 35.94 | 46.10 | 49.23 | 51.58 | 41.90 | 33.65 | 21.33 | 8.81 | 27.82 | |||||||||||||
1923 | 9.87 | 5.50 | 15.58 | 29.33 | 36.68 | 41.83 | 51.35 | 47.90 | 42.37 | 31.68 | 24.87 | 8.68 | 28.80 | |||||||||||||
1924 | 5.16 | 21.86 | 19.23 | 29.33 | 39.35 | 41.62 | d | 49.84 | 47.26 | 40.40 | 32.81 | 20.13 | 5.58 | 29.38 | ||||||||||||
1925 | 8.32 | 16.04 | 21.52 | 31.87 | 39.87 | 42.93 | 52.03 | 45.90 | 40.03 | 30.06 | 21.57 | 17.74 | 30.66 | |||||||||||||
1926 | 8.61 | 15.96 | 22.94 | 34.30 | 36.29 | 45.43 | 49.94 | 48.10 | 32.93 | 31.00 | 24.70 | 9.42 | 29.97 | |||||||||||||
1927 | 12.10 | 13.21 | 17.45 | 26.47 | 33.77 | 41.87 | 46.77 | 44.39 | 37.43 | 30.16 | 24.93 | 3.81 | 27.70 | |||||||||||||
1928 | 10.90 | 10.10 | 22.39 | 24.13 | 38.81 | 37.27 | 46.77 | 42.00 | 37.53 | 29.48 | 21.03 | 4.65 | 27.09 | |||||||||||||
1929 | -3.87 | 2.54 | 20.90 | 27.10 | 35.48 | 41.73 | 49.77 | 51.06 | 37.33 | 32.13 | 16.23 | 19.97 | 27.53 | |||||||||||||
1930 | 0.71 | 19.86 | 22.00 | 33.90 | 36.23 | 39.77 | 50.86 | b | 51.03 | 40.60 | 31.77 | 14.97 | a | 5.42 | 28.93 | |||||||||||
1931 | 8.00 | 14.82 | 21.26 | 29.77 | 37.55 | 45.20 | 51.45 | 49.45 | 40.83 | 32.19 | 13.21 | a | 7.87 | 29.30 | ||||||||||||
1932 | -1.61 | 7.10 | 18.61 | 28.73 | 37.53 | a | 43.43 | 47.42 | 45.10 | 38.63 | 28.10 | 24.13 | 5.16 | 26.86 | ||||||||||||
1933 | 6.32 | -2.89 | 18.94 | 27.70 | 33.87 | 46.07 | 50.97 | 47.13 | 36.37 | 34.13 | 24.83 | 18.03 | 28.46 | |||||||||||||
1934 | 13.26 | 23.75 | 28.32 | 35.70 | 40.52 | 43.27 | 50.77 | 50.19 | 37.57 | 33.81 | 25.93 | 12.10 | 32.93 | |||||||||||||
1935 | 9.29 | 12.46 | 18.23 | 28.60 | 34.39 | 41.03 | 47.29 | 44.94 | 39.70 | 28.29 | 11.40 | 7.06 | 26.89 | |||||||||||||
1936 | 3.42 | 6.24 | 14.90 | 29.17 | 37.71 | 46.69 | a | 53.90 | 49.87 | 38.50 | 32.42 | 16.67 | 12.90 | 28.53 | ||||||||||||
1937 | -6.10 | 8.18 | 21.29 | 27.60 | 37.81 | 42.10 | 51.74 | 45.81 | 43.07 | 32.87 | 24.70 | 16.00 | 28.76 | |||||||||||||
1938 | 10.23 | 13.93 | 19.77 | 29.60 | 36.10 | 43.80 | 49.03 | 45.68 | 44.10 | 34.39 | 14.57 | 11.74 | 29.41 | |||||||||||||
1939 | 7.26 | 3.57 | 19.65 | 30.93 | 39.61 | 41.90 | a | 50.55 | 48.71 | 41.47 | 30.81 | 22.10 | 20.19 | 29.73 | ||||||||||||
1940 | 10.45 | 16.66 | 22.81 | 30.47 | 38.48 | 45.47 | 49.90 | 47.94 | 41.93 | 33.81 | 16.63 | 15.81 | 30.86 | |||||||||||||
1941 | 12.97 | 19.18 | 24.81 | 30.77 | 39.55 | 43.47 | 52.29 | 48.06 | 36.07 | a | 31.90 | 25.87 | 18.61 | 31.96 | ||||||||||||
1942 | 7.03 | 6.56 | a | 15.42 | 32.87 | 35.97 | 39.73 | 50.10 | 47.97 | 39.10 | 33.35 | 20.92 | f | 12.32 | c | 29.13 | a | |||||||||
1943 | 8.07 | c | 12.96 | e | 14.74 | d | 34.65 | d | 34.65 | e | 40.18 | b | 48.63 | a | 46.19 | 42.63 | 34.16 | 25.90 | 16.55 | 29.94 | ||||||
1944 | 6.94 | 15.76 | 14.39 | 29.80 | 37.23 | 40.33 | 46.97 | 44.55 | 39.83 | 35.81 | 21.43 | 9.74 | 28.56 | |||||||||||||
1945 | 11.55 | 15.29 | 19.42 | 26.33 | 37.06 | 41.13 | 49.48 | 48.84 | 36.07 | 34.45 | 17.77 | 8.16 | 28.80 | |||||||||||||
1946 | 5.32 | 8.89 | 22.81 | 32.27 | 38.03 | 42.60 | 50.84 | 48.26 | 39.47 | 27.81 | 22.17 | a | 19.23 | 29.81 | ||||||||||||
1947 | 4.58 | 18.79 | 25.35 | 31.00 | 40.35 | 42.10 | 50.16 | 46.87 | 40.23 | 35.55 | 17.93 | 15.63 | a | 30.71 | ||||||||||||
1948 | 9.81 | 13.00 | 18.35 | 29.43 | 36.58 | 46.37 | 47.55 | 46.74 | 41.17 | 32.97 | 17.97 | 5.19 | 28.76 | |||||||||||||
1949 | -5.84 | 7.82 | 24.58 | 32.63 | 40.81 | 42.23 | 48.48 | 50.39 | 42.97 | 27.71 | 28.50 | 11.80 | a | 29.34 | ||||||||||||
1950 | 5.65 | 11.39 | 18.00 | 28.60 | 34.00 | 42.37 | 48.48 | 47.74 | 42.67 | 35.13 | 25.73 | 16.72 | b | 29.71 | ||||||||||||
1951 | 6.13 | 13.57 | 15.48 | 31.10 | 38.26 | 39.57 | 49.81 | 47.19 | 38.97 | a | 30.61 | 16.63 | 4.58 | 27.66 | ||||||||||||
1952 | 4.74 | 4.83 | 14.65 | 30.30 | 38.68 | 43.77 | 48.65 | 47.23 | 42.17 | 34.52 | 14.20 | 12.03 | 27.98 | |||||||||||||
1953 | 20.45 | 14.07 | 20.52 | 27.93 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.74 | h | ||||
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 | 11.17 | x | 9.97 | 9.97 | k | |
1960 | 4.45 | 7.45 | 18.81 | 30.30 | 34.00 | 42.83 | 52.52 | 42.61 | 39.63 | 27.65 | 21.67 | 9.72 | f | 29.26 | a | |||||||||||
1961 | 10.03 | 18.43 | 18.26 | 26.50 | 33.35 | 47.39 | b | 50.10 | 51.39 | 36.22 | c | 29.97 | 21.33 | 8.26 | 29.27 | |||||||||||
1962 | 0.44 | f | 12.15 | a | 17.39 | 32.10 | 36.90 | a | 41.73 | 45.87 | 42.87 | 38.93 | a | 32.87 | 23.10 | 14.29 | 30.75 | a | ||||||||
1963 | 2.74 | 22.29 | 20.58 | 27.10 | 38.45 | b | 41.55 | a | 46.35 | 48.40 | a | 43.85 | c | 34.35 | 20.27 | 6.42 | 29.36 | |||||||||
1964 | 2.26 | 1.28 | 9.45 | 27.10 | 35.45 | 41.27 | 49.10 | 43.94 | 35.83 | 31.74 | 18.87 | 11.40 | a | 25.64 | ||||||||||||
1965 | 11.71 | 10.29 | 13.52 | 31.10 | 34.06 | 42.53 | 47.77 | 45.23 | 33.50 | b | 33.65 | 26.67 | c | 14.57 | a | 28.72 | ||||||||||
1966 | 9.19 | 9.29 | 20.58 | 29.07 | 38.26 | 42.40 | 49.97 | a | 48.17 | a | 43.67 | 28.61 | 25.47 | 9.80 | a | 29.54 | ||||||||||
1967 | 12.10 | 11.36 | 20.84 | 26.60 | 35.42 | 43.27 | 51.00 | 50.74 | 44.17 | 31.72 | f | 23.58 | f | 5.55 | 30.10 | b | ||||||||||
1968 | 8.06 | 22.21 | ----- | z | 26.30 | 35.00 | 42.37 | c | 49.03 | 45.40 | a | 39.38 | f | 31.32 | 19.90 | t | 9.00 | 29.86 | c | |||||||
1969 | 12.68 | 11.61 | j | 15.66 | b | 30.41 | a | 39.16 | 43.20 | 48.40 | a | 49.43 | a | 42.07 | 27.00 | 20.39 | b | 15.29 | 31.24 | a | ||||||
1970 | 14.55 | 17.82 | 21.10 | 24.70 | 36.35 | 45.85 | c | 50.53 | a | 50.52 | 34.59 | c | 26.16 | 25.07 | 9.81 | 29.75 | ||||||||||
1971 | 12.03 | 10.07 | 15.58 | 27.97 | 37.81 | 42.83 | 49.90 | 52.87 | 35.63 | 30.13 | 20.30 | 5.63 | a | 28.40 | ||||||||||||
1972 | 6.87 | 12.17 | 25.27 | a | 28.03 | 37.77 | 47.43 | 46.07 | b | 49.60 | a | 35.59 | a | ----- | z | ----- | z | 8.68 | c | 29.75 | b | |||||
1973 | 7.43 | a | 11.37 | a | 20.10 | 28.03 | 36.87 | 42.46 | d | ----- | z | 47.13 | a | ----- | z | ----- | z | 28.00 | s | 16.58 | e | 26.25 | d | |||
1974 | 6.67 | a | 9.00 | 22.90 | 29.13 | 34.96 | d | 45.22 | c | 49.33 | a | 46.37 | a | 40.48 | c | 32.23 | e | 24.50 | t | 12.48 | b | 29.89 | a | |||
1975 | 1.97 | 10.56 | a | 18.65 | 24.70 | c | 34.67 | a | 41.15 | c | 53.19 | 44.26 | 39.30 | 30.95 | i | 12.09 | s | 15.82 | i | 29.83 | c | |||||
1976 | 11.62 | b | 13.75 | a | 14.62 | e | 29.21 | f | 38.61 | h | 41.18 | b | 49.10 | 43.87 | a | 41.40 | 28.00 | o | ----- | z | 10.75 | s | 30.79 | e | ||
1977 | -0.29 | n | 10.71 | n | 17.19 | o | 30.69 | a | 33.36 | c | 44.48 | e | 46.24 | b | 45.93 | c | 36.39 | b | 29.47 | l | ----- | z | 9.71 | j | 39.51 | f |
1978 | 9.38 | j | 10.62 | l | 20.95 | i | 25.39 | l | 31.59 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.03 | 30.03 | 18.97 | 11.65 | 24.17 | h | ||||
1987 | 4.13 | a | 17.39 | 23.31 | b | 31.47 | 38.90 | 43.70 | 45.73 | a | ----- | z | ----- | z | ----- | z | 23.93 | 12.52 | 26.79 | c | ||||||
1988 | 8.26 | 12.97 | 21.27 | a | 31.32 | b | 33.48 | ----- | z | 49.36 | q | 44.61 | 37.33 | 33.29 | ----- | z | ----- | z | 27.82 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 7.52 | 11.93 | 19.01 | 29.12 | 36.67 | 42.54 | 48.81 | 47.22 | 39.06 | 31.41 | 21.42 | 10.85 | 28.93 | |||||||||||||
S.D. | 5.11 | 5.41 | 4.03 | 2.96 | 2.07 | 2.47 | 2.31 | 2.48 | 2.94 | 2.68 | 3.96 | 4.80 | 1.33 | |||||||||||||
SKEW | -0.40 | -0.05 | -0.26 | 0.19 | 0.10 | 0.13 | -0.55 | 0.03 | -0.27 | -0.50 | -0.47 | 0.35 | 0.39 | |||||||||||||
MAX | 20.45 | 23.75 | 28.32 | 35.70 | 40.81 | 48.77 | 53.90 | 52.87 | 44.17 | 36.32 | 28.50 | 23.16 | 32.93 | |||||||||||||
MIN | -6.10 | -2.89 | 7.48 | 23.80 | 32.77 | 37.27 | 41.65 | 42.00 | 31.80 | 24.48 | 11.40 | 2.26 | 25.64 | |||||||||||||
YRS | 66 | 66 | 68 | 70 | 68 | 68 | 68 | 70 | 69 | 63 | 58 | 65 | 49 |