YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.23 | k | 30.07 | b | 27.89 | c | 28.98 | j |
1895 | 10.45 | 11.50 | 28.71 | 47.60 | 58.48 | 68.70 | 66.74 | h | 68.44 | 65.84 | b | 42.44 | 31.93 | c | 22.77 | 41.53 | a | |||||||||
1896 | 17.78 | a | 21.14 | 25.65 | 44.65 | m | 64.61 | 67.28 | 69.79 | 69.94 | 56.58 | 44.52 | c | 28.83 | 24.85 | 44.63 | a | |||||||||
1897 | 17.46 | e | 22.41 | 26.85 | 43.83 | d | 55.44 | 64.03 | 72.58 | 64.58 | 65.73 | 52.81 | 30.95 | 18.64 | b | 44.61 | ||||||||||
1898 | 21.19 | 20.10 | b | 34.63 | 43.82 | 57.05 | 67.23 | 69.79 | j | 66.92 | a | 63.30 | 46.02 | 33.23 | 17.80 | f | 45.35 | b | ||||||||
1899 | 14.16 | 8.50 | d | 19.98 | 48.22 | 55.84 | c | 66.21 | b | 68.56 | v | 70.33 | k | 56.67 | 52.67 | a | 40.78 | 20.92 | 38.40 | b | ||||||
1900 | 21.77 | a | 11.88 | b | 24.40 | a | 47.83 | 59.79 | 65.00 | 68.11 | 74.00 | 61.20 | 56.54 | c | 30.11 | b | 23.53 | a | 45.35 | |||||||
1901 | 16.13 | d | 11.60 | b | 28.52 | d | 47.02 | 57.05 | 67.33 | 74.63 | a | 69.15 | a | 59.62 | 50.98 | a | 31.57 | b | 16.72 | f | 46.69 | a | ||||
1902 | 18.81 | b | 17.74 | a | 36.10 | b | 45.81 | c | 58.31 | 61.52 | a | 70.97 | a | 65.34 | 57.83 | a | 49.29 | 40.22 | a | 19.61 | c | 45.13 | ||||
1903 | 15.65 | a | 18.54 | 37.81 | 45.39 | g | 56.76 | b | 62.50 | 68.77 | a | 63.53 | 58.87 | 49.32 | a | 32.83 | c | 13.95 | a | 43.50 | a | |||||
1904 | 9.22 | f | 7.14 | 27.59 | b | 39.32 | 57.08 | a | 64.02 | a | 67.47 | 64.50 | 60.31 | a | 48.73 | 38.12 | e | 19.31 | 44.87 | a | ||||||
1905 | 9.64 | b | 11.30 | 33.13 | 44.42 | 53.53 | 63.67 | 68.32 | 67.73 | 61.69 | c | 47.18 | a | 34.78 | a | 24.69 | 43.34 | |||||||||
1906 | 22.40 | 17.05 | 22.20 | a | 48.05 | 55.42 | 64.82 | 68.78 | a | 71.78 | d | 65.60 | 48.55 | a | 34.95 | a | 22.80 | a | 45.20 | |||||||
1907 | 18.61 | i | 16.82 | k | 35.13 | a | 36.77 | 48.81 | 64.10 | 67.38 | s | 65.66 | b | 58.90 | 45.95 | a | 34.13 | 24.64 | c | 46.01 | c | |||||
1908 | 21.34 | b | 19.31 | 32.27 | 44.81 | c | 56.87 | a | 64.50 | 69.60 | 67.50 | a | 66.27 | 50.53 | a | 35.91 | b | 21.00 | d | 45.83 | ||||||
1909 | 18.83 | b | 22.02 | a | 28.53 | 38.48 | c | 54.31 | 65.65 | 69.94 | 70.58 | 59.57 | a | 44.95 | c | 40.43 | a | 14.66 | 44.00 | |||||||
1910 | 16.39 | 15.02 | 42.78 | a | 48.22 | e | 52.68 | 68.40 | 72.76 | 69.95 | 59.38 | 51.80 | d | 28.76 | a | 18.02 | 45.35 | |||||||||
1911 | 15.76 | d | 27.47 | m | 34.40 | 43.80 | 62.41 | b | 70.68 | 70.69 | b | 66.93 | i | 59.74 | a | 46.97 | 28.35 | 27.42 | a | 46.02 | b | |||||
1912 | -1.35 | 13.53 | 22.85 | 47.44 | d | 57.35 | 64.27 | 70.42 | 64.95 | 61.62 | 50.18 | 37.30 | 26.27 | a | 42.90 | |||||||||||
1913 | 17.82 | 14.04 | 27.17 | b | 47.57 | 55.39 | 68.30 | 68.66 | 68.84 | 60.83 | a | 50.93 | j | 39.42 | 30.98 | 45.36 | a | |||||||||
1914 | 24.32 | 10.64 | 29.53 | 42.55 | 59.87 | 64.68 | 73.06 | 68.52 | 61.65 | c | 53.91 | d | 35.75 | b | 14.72 | a | 44.93 | |||||||||
1915 | 14.10 | 26.02 | 28.76 | 53.45 | b | 51.48 | b | 60.60 | 66.39 | 62.79 | 60.19 | a | 50.52 | 36.65 | 22.05 | 44.42 | ||||||||||
1916 | 18.06 | 14.43 | 25.24 | 45.04 | b | 56.93 | d | 60.62 | a | 76.37 | 70.50 | 58.63 | 48.48 | 33.26 | a | 15.16 | 43.56 | |||||||||
1917 | 11.53 | 7.54 | 28.97 | 42.43 | 52.15 | 61.28 | 71.06 | 65.32 | 58.02 | 39.15 | 36.85 | 14.02 | 40.69 | |||||||||||||
1918 | 5.47 | a | 16.39 | 36.13 | 41.20 | 59.98 | 65.67 | 68.53 | 70.10 | 54.80 | 51.73 | 38.32 | 29.38 | a | 44.81 | |||||||||||
1919 | 23.56 | 22.41 | 32.94 | 45.20 | 54.52 | 69.98 | a | 72.35 | 66.98 | 63.16 | a | 48.27 | 31.25 | 11.79 | 45.20 | |||||||||||
1920 | 8.76 | 16.83 | 31.37 | 39.21 | a | 55.66 | 67.62 | 66.60 | a | 66.75 | a | 63.58 | 55.60 | a | 33.47 | a | 24.32 | 44.15 | ||||||||
1921 | 22.55 | b | 24.38 | 35.94 | 51.02 | 59.37 | a | 70.88 | 77.87 | 69.95 | 66.17 | a | 49.73 | a | 30.14 | a | 21.61 | 48.30 | ||||||||
1922 | 13.10 | 16.09 | 30.90 | 44.67 | 63.17 | b | 67.62 | 68.50 | 69.16 | 63.15 | 51.32 | 40.05 | 19.98 | 45.64 | ||||||||||||
1923 | 18.53 | a | 11.50 | 23.26 | 43.22 | a | 56.89 | 70.69 | a | 72.29 | 66.48 | a | 59.85 | 47.42 | 38.82 | b | 31.20 | a | 45.01 | |||||||
1924 | 7.15 | a | 20.81 | 28.11 | 42.00 | a | 50.13 | a | 61.90 | a | 67.70 | a | 66.38 | a | 55.50 | a | 54.35 | a | 34.26 | a | 13.35 | a | 41.80 | |||
1925 | 16.97 | a | 23.08 | b | 32.69 | b | 50.53 | a | 53.32 | 66.55 | 68.63 | 68.79 | 65.00 | 38.88 | b | 33.07 | 16.84 | 44.53 | ||||||||
1926 | 17.34 | 23.38 | 23.43 | a | 42.07 | 58.07 | b | 61.27 | 69.03 | a | 67.84 | 57.38 | 45.83 | a | 28.83 | 16.97 | 42.62 | |||||||||
1927 | 13.81 | 24.82 | 36.50 | a | 44.90 | a | 53.67 | b | 62.34 | b | 67.90 | 63.95 | 63.05 | b | 51.87 | 34.31 | a | 16.34 | 44.46 | |||||||
1928 | 19.50 | 21.84 | a | 30.74 | 39.23 | 58.82 | a | 61.34 | a | 69.48 | a | 68.02 | b | 56.71 | a | 51.29 | 37.20 | 26.05 | a | 45.02 | ||||||
1929 | 6.55 | 12.25 | 34.08 | a | 47.20 | b | 52.90 | 63.23 | 70.35 | a | 66.76 | 60.57 | 49.23 | a | 30.78 | a | 21.65 | 42.96 | ||||||||
1930 | 11.42 | 26.39 | a | 31.48 | 46.60 | 57.98 | 67.78 | 71.97 | b | 70.73 | 62.64 | b | 48.16 | b | 38.97 | a | 23.38 | a | 46.46 | |||||||
1931 | 25.42 | a | 29.91 | 31.87 | a | 47.34 | a | 55.67 | a | 70.97 | 75.00 | 69.05 | 67.22 | a | 53.76 | 42.90 | 31.85 | a | 50.08 | |||||||
1932 | 24.40 | 22.48 | 23.61 | 42.98 | 56.76 | 69.40 | a | 72.08 | a | 69.94 | 60.84 | a | 47.18 | 31.48 | a | 21.07 | a | 45.19 | ||||||||
1933 | 27.81 | 15.83 | b | 29.87 | 43.62 | a | 57.94 | 73.90 | 72.93 | b | 67.93 | a | 66.20 | 46.90 | a | 31.37 | 20.08 | 46.20 | ||||||||
1934 | 24.72 | a | 16.33 | a | 27.82 | 43.77 | 64.60 | 70.73 | 71.67 | a | 66.10 | 58.85 | 52.08 | a | 39.33 | 17.02 | 46.08 | |||||||||
1935 | 13.19 | 21.55 | 31.97 | a | 42.27 | 51.72 | b | 62.02 | a | 75.13 | 68.93 | a | 60.17 | 49.19 | 33.00 | c | 20.63 | 44.15 | ||||||||
1936 | 10.36 | b | 4.43 | 32.34 | 40.13 | 63.13 | 64.58 | e | 75.40 | 72.00 | 63.85 | 46.08 | 32.84 | a | 25.55 | 44.23 | ||||||||||
1937 | 13.69 | 17.61 | 27.56 | 42.86 | a | 57.64 | b | 65.60 | 73.35 | 74.58 | 61.92 | 47.00 | a | 32.68 | 19.37 | d | 44.49 | |||||||||
1938 | 16.02 | 24.91 | 37.62 | b | 47.05 | 56.48 | 65.45 | 70.34 | 71.80 | a | 60.25 | 55.15 | 36.52 | b | 22.13 | 46.98 | ||||||||||
1939 | 23.31 | 15.88 | 30.88 | a | 42.55 | 61.47 | a | 66.92 | 73.33 | a | 70.15 | a | 62.88 | d | 49.10 | b | 37.72 | a | 29.87 | a | 47.01 | |||||
1940 | 11.48 | a | 22.71 | 25.32 | a | 42.25 | 54.66 | 65.87 | 72.24 | b | 67.34 | 62.42 | 52.31 | 34.40 | e | 24.10 | a | 44.59 | ||||||||
1941 | 20.17 | b | 18.59 | a | 25.67 | a | 51.96 | b | 61.76 | b | 67.43 | 71.45 | a | 69.47 | 62.72 | 50.56 | 38.82 | 29.40 | a | 47.33 | ||||||
1942 | 18.74 | 19.29 | b | 34.76 | 51.77 | 54.31 | 65.32 | 68.70 | c | 68.16 | 58.88 | a | 50.56 | 35.60 | 18.08 | 45.35 | ||||||||||
1943 | 14.67 | a | 19.50 | c | 25.21 | 43.17 | 56.07 | a | 68.58 | 72.00 | a | 70.25 | a | 56.23 | 49.56 | 31.69 | a | 24.39 | 44.28 | |||||||
1944 | 28.60 | b | 23.09 | a | 26.76 | 41.09 | a | 61.13 | a | 68.78 | 70.24 | 71.27 | a | 61.67 | 50.03 | 40.38 | 18.62 | a | 46.81 | |||||||
1945 | 14.22 | b | 19.31 | d | 42.21 | 46.42 | 53.15 | 61.45 | b | 68.15 | 69.00 | 59.52 | a | 48.35 | 35.10 | 16.90 | 44.48 | |||||||||
1946 | 19.98 | 20.04 | 40.95 | 49.27 | 54.65 | 64.50 | 70.35 | 66.60 | 60.18 | 54.03 | ----- | z | ----- | z | 50.06 | b | ||||||||||
1947 | ----- | z | ----- | z | ----- | z | 42.62 | b | 50.69 | b | 62.67 | 70.39 | 75.47 | 63.33 | 59.35 | a | 30.50 | a | 21.61 | m | 56.88 | d | ||||
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 | 18.44 | a | 26.18 | 43.52 | 60.56 | 63.22 | 69.39 | 65.84 | 57.72 | 48.73 | 26.29 | b | 19.44 | 45.39 | a | |||||||||
1952 | 17.74 | 23.59 | 26.68 | 48.90 | 55.48 | 67.58 | 72.69 | 68.47 | 61.60 | 43.63 | 37.17 | 25.47 | b | 45.75 | ||||||||||||
1953 | 21.65 | 20.00 | 31.31 | 42.03 | 56.95 | 68.78 | 71.34 | 70.92 | a | 61.90 | 55.13 | 40.27 | 25.48 | 47.15 | ||||||||||||
1954 | 15.94 | 29.88 | 29.73 | 47.10 | a | 50.65 | 68.77 | 70.96 | f | 67.29 | 60.32 | 47.87 | a | 37.25 | b | 23.29 | 43.46 | a | ||||||||
1955 | 16.85 | 18.86 | 27.95 | 51.92 | 59.44 | 65.21 | a | 76.61 | 74.00 | 62.48 | 51.55 | 30.20 | 17.37 | 46.04 | ||||||||||||
1956 | 18.05 | 19.34 | a | 25.42 | 40.83 | 55.61 | 68.90 | a | 67.19 | 68.28 | a | 57.55 | 54.92 | 34.60 | a | 24.29 | 44.58 | |||||||||
1957 | 10.66 | 23.14 | 31.68 | 46.45 | a | 55.11 | 66.83 | 72.31 | 68.53 | 58.70 | 46.98 | a | 34.12 | 25.39 | 44.99 | |||||||||||
1958 | 20.47 | a | 16.39 | 34.58 | s | 45.58 | 56.10 | 61.83 | 68.69 | 70.08 | 61.42 | 52.88 | a | 37.08 | 14.63 | a | 45.92 | a | ||||||||
1959 | 9.40 | 14.77 | 26.55 | 45.35 | 61.42 | 67.87 | 70.44 | 74.05 | 62.08 | 44.76 | 25.70 | 29.58 | 44.33 | |||||||||||||
1960 | 22.02 | 21.52 | 21.26 | 47.82 | 54.74 | 62.82 | 68.60 | 69.77 | 62.32 | 48.85 | 38.17 | a | 20.00 | 44.82 | ||||||||||||
1961 | 17.53 | 27.12 | 33.92 | 41.18 | 53.89 | 66.43 | 70.55 | 69.42 | 61.30 | 51.16 | 35.22 | 18.52 | 45.52 | |||||||||||||
1962 | 12.63 | 16.54 | 29.06 | 44.37 | 61.84 | 65.77 | 67.42 | 69.65 | 57.00 | 51.27 | 36.22 | 20.84 | 44.38 | |||||||||||||
1963 | 6.60 | 13.11 | 32.08 | 47.26 | a | 54.42 | 68.40 | 71.48 | 66.53 | 60.03 | 58.26 | 40.27 | 13.58 | 44.33 | ||||||||||||
1964 | 24.10 | 24.19 | 29.77 | 46.78 | 61.34 | 66.62 | 71.79 | 66.69 | 58.67 | 47.47 | 38.50 | 18.35 | 46.19 | |||||||||||||
1965 | 14.61 | 17.70 | 24.42 | 41.73 | 61.00 | 64.62 | 68.10 | 67.55 | 57.62 | 49.55 | 35.83 | 29.90 | a | 44.39 | ||||||||||||
1966 | 9.06 | 20.21 | 34.66 | 42.48 | 51.73 | 67.70 | 73.29 | 66.82 | 59.08 | 49.45 | 35.27 | 21.29 | 44.25 | |||||||||||||
1967 | 19.56 | 12.48 | 30.19 | 45.98 | 51.05 | 66.65 | 67.27 | 64.23 | 58.52 | 47.69 | 32.30 | 23.77 | 43.31 | |||||||||||||
1968 | 17.82 | 18.45 | 39.55 | 47.43 | 53.53 | 65.77 | 68.94 | 68.73 | 61.37 | 51.71 | 35.42 | 21.66 | 45.86 | |||||||||||||
1969 | 14.24 | 22.46 | 26.10 | 47.53 | 57.32 | 58.42 | 70.32 | 71.76 | 60.55 | 46.29 | 33.58 | 22.35 | a | 44.24 | ||||||||||||
1970 | 9.63 | 17.86 | 28.71 | 47.23 | 57.95 | 67.92 | 72.26 | 69.65 | 61.15 | 51.24 | 34.55 | 20.63 | 44.90 | |||||||||||||
1971 | 10.15 | 18.86 | 26.76 | 45.42 | 53.68 | 69.65 | 68.11 | 66.50 | 63.45 | 56.05 | 35.45 | 24.06 | 44.84 | |||||||||||||
1972 | 10.98 | 14.82 | a | 25.47 | 40.73 | 61.16 | 63.80 | 68.76 | 68.48 | 58.57 | 45.06 | 34.02 | 17.55 | 42.45 | ||||||||||||
1973 | 21.11 | 23.00 | 40.24 | 43.29 | a | 53.18 | 67.32 | 72.29 | 70.77 | 60.69 | a | 54.73 | 35.78 | 20.73 | 46.93 | |||||||||||
1974 | 18.02 | 18.77 | 30.87 | 47.53 | 53.31 | 62.75 | 71.67 | a | 67.68 | a | 55.42 | 48.77 | 36.08 | 26.47 | 44.78 | |||||||||||
1975 | 18.88 | a | 19.77 | 25.97 | a | 39.20 | 61.52 | 65.69 | a | 72.00 | 69.53 | 55.67 | 51.66 | 40.27 | ----- | z | 47.29 | a | ||||||||
1976 | 13.39 | 26.66 | 33.29 | 47.93 | 54.10 | 69.18 | b | 72.42 | 67.81 | 58.75 | 44.47 | 27.78 | 11.53 | a | 43.94 | |||||||||||
1977 | 4.16 | 22.23 | 38.61 | 51.37 | 65.07 | a | 64.68 | 73.88 | a | 65.95 | 61.05 | 48.66 | 34.47 | a | 18.50 | 45.72 | ||||||||||
1978 | 11.71 | 12.93 | 28.95 | 42.42 | 58.19 | 65.08 | 68.31 | 68.95 | 64.45 | 48.58 | a | 34.17 | a | 18.23 | a | 43.50 | ||||||||||
1979 | 4.83 | a | 10.10 | b | 27.26 | d | 42.48 | b | 53.45 | a | 65.10 | a | 71.17 | e | 65.79 | b | 62.22 | c | 46.52 | f | 34.21 | i | 25.98 | e | 42.84 | b |
1980 | 16.07 | c | 17.52 | a | 27.37 | 46.88 | b | 58.52 | b | 64.28 | g | 71.95 | a | 69.41 | c | 59.25 | b | 42.44 | d | 34.94 | d | 19.05 | b | 42.13 | a | |
1981 | 14.60 | e | 23.38 | 34.35 | a | 46.70 | 54.62 | b | 66.76 | c | 70.22 | d | 68.22 | a | 57.10 | d | 44.11 | c | 37.58 | e | ----- | z | 47.06 | a | ||
1982 | 6.20 | d | 16.77 | b | 27.58 | a | 42.23 | d | 62.21 | c | 59.58 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.76 | f |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.83 | 18.46 | 30.18 | 44.97 | 56.74 | 65.79 | 70.78 | 68.51 | 60.65 | 49.52 | 34.79 | 21.49 | 44.93 | |||||||||||||
S.D. | 5.85 | 5.20 | 4.93 | 3.45 | 3.66 | 3.00 | 2.45 | 2.54 | 2.80 | 3.89 | 3.67 | 4.82 | 1.49 | |||||||||||||
SKEW | -0.28 | -0.28 | 0.47 | 0.14 | 0.25 | -0.05 | 0.53 | 0.33 | 0.18 | -0.12 | -0.22 | 0.12 | 0.36 | |||||||||||||
MAX | 28.60 | 29.91 | 42.78 | 53.45 | 65.07 | 73.90 | 77.87 | 75.47 | 67.22 | 59.35 | 42.90 | 31.85 | 50.08 | |||||||||||||
MIN | -1.35 | 4.43 | 19.98 | 36.77 | 48.81 | 58.42 | 66.39 | 62.79 | 54.80 | 38.88 | 25.70 | 11.53 | 40.69 | |||||||||||||
YRS | 81 | 82 | 83 | 83 | 85 | 84 | 79 | 82 | 84 | 82 | 83 | 79 | 65 |