YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.70 | 35.13 | 40.41 | j | ||
1914 | 22.19 | 10.40 | c | 36.30 | a | 48.07 | 70.48 | 77.63 | 84.23 | a | 78.19 | 70.33 | 62.68 | 35.89 | c | 16.52 | 51.08 | |||||||||
1915 | 15.47 | a | 30.18 | 40.33 | a | 66.23 | 66.53 | a | 69.41 | a | 77.42 | 79.16 | 68.83 | f | 58.00 | 36.77 | ----- | z | 53.95 | b | ||||||
1916 | ----- | z | ----- | z | 32.39 | 48.67 | 61.90 | 70.77 | 86.00 | 76.19 | 66.38 | a | 53.06 | 38.93 | ----- | z | 59.37 | c | ||||||||
1917 | ----- | z | ----- | z | 30.47 | a | 46.23 | 64.27 | a | 73.90 | 83.43 | a | 74.26 | 68.20 | 42.93 | a | 43.37 | 13.55 | 54.06 | b | ||||||
1918 | 8.77 | 25.27 | b | 46.13 | 57.72 | a | 69.48 | 81.43 | 82.00 | 81.54 | c | 67.22 | c | 59.90 | a | 45.48 | a | 28.00 | 54.41 | |||||||
1919 | 27.45 | 25.30 | a | 38.17 | a | 53.03 | 73.48 | 84.13 | 87.68 | 80.13 | 69.20 | 54.13 | 40.43 | 12.48 | b | 53.80 | ||||||||||
1920 | 16.07 | a | 19.62 | 39.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.05 | i | ||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.33 | v | 77.32 | 64.77 | 45.90 | 24.00 | 27.84 | 47.97 | g | |||||
1960 | 18.19 | 23.79 | 28.23 | 47.30 | 64.19 | 71.03 | 77.81 | 77.03 | 65.70 | 53.13 | 35.17 | 17.16 | 48.23 | |||||||||||||
1961 | 14.32 | 29.32 | 38.71 | 45.27 | 63.35 | 76.30 | 78.65 | 79.19 | 64.23 | 54.29 | 35.33 | 20.77 | 49.98 | |||||||||||||
1962 | 10.94 | 16.04 | 36.23 | 45.60 | 64.26 | 72.43 | 73.39 | 74.65 | 62.83 | 54.29 | 37.90 | 20.77 | 47.44 | |||||||||||||
1963 | 5.84 | 15.36 | 38.19 | 51.80 | 60.52 | 75.10 | 78.35 | 73.06 | 67.77 | 65.32 | 39.60 | 13.84 | 48.73 | |||||||||||||
1964 | 22.77 | 25.62 | 30.19 | 50.40 | 67.45 | 71.70 | 80.58 | 68.94 | 61.70 | 51.71 | 35.33 | 14.65 | 48.42 | |||||||||||||
1965 | 13.13 | 16.36 | 26.81 | 46.97 | 63.58 | 71.13 | 72.77 | 72.55 | 54.97 | 52.23 | 32.70 | 26.29 | 45.79 | |||||||||||||
1966 | 6.71 | 20.50 | 36.45 | 42.80 | 56.35 | 74.30 | 80.87 | 71.77 | 65.90 | 51.00 | 30.13 | 18.23 | 46.25 | |||||||||||||
1967 | 16.52 | 13.93 | 34.19 | 45.93 | 57.97 | 71.47 | 75.97 | 72.65 | 67.73 | 48.68 | 30.77 | 22.13 | 46.49 | |||||||||||||
1968 | 17.19 | 19.31 | 40.13 | 48.87 | 58.87 | 69.73 | 75.10 | 72.55 | 64.60 | 52.81 | 33.63 | 17.45 | 47.52 | |||||||||||||
1969 | 14.35 | 25.00 | 33.16 | 52.37 | 62.71 | 63.67 | 75.87 | 79.58 | 64.43 | 45.77 | 34.57 | 22.81 | 47.86 | |||||||||||||
1970 | 10.48 | 19.50 | 32.32 | 47.17 | 56.35 | 74.63 | 81.10 | 78.03 | 64.97 | 51.61 | 32.17 | 19.32 | 47.30 | |||||||||||||
1971 | 6.87 | 22.43 | 31.58 | 48.53 | 60.65 | 76.10 | 74.10 | 75.03 | 66.17 | 54.19 | 32.20 | 20.58 | 47.37 | |||||||||||||
1972 | 8.39 | 15.83 | 30.35 | 45.67 | 71.26 | 74.40 | 73.39 | 74.77 | a | 59.80 | 47.00 | 30.67 | 13.06 | 45.38 | ||||||||||||
1973 | 21.16 | 23.11 | 42.58 | 48.30 | 61.52 | 71.40 | 76.16 | 76.61 | 63.17 | 56.06 | 32.50 | 17.94 | 49.21 | |||||||||||||
1974 | 12.94 | 21.93 | 30.19 | 49.63 | 56.94 | 71.87 | 80.26 | 71.84 | 57.93 | 51.94 | 34.43 | 26.26 | 47.18 | |||||||||||||
1975 | 18.45 | 21.93 | 29.81 | 43.50 | 68.13 | 71.73 | 81.74 | 74.61 | 60.47 | 54.52 | 38.57 | 19.58 | 48.59 | |||||||||||||
1976 | 14.19 | 29.17 | 31.48 | 54.87 | 65.84 | 76.87 | 79.06 | 79.53 | a | 67.10 | 45.61 | 27.47 | 11.61 | 48.57 | ||||||||||||
1977 | 6.61 | 23.21 | 41.13 | 56.30 | 74.45 | 72.13 | 78.26 | 67.55 | 61.40 | 52.87 | 34.50 | 16.29 | 48.73 | |||||||||||||
1978 | 10.39 | 18.25 | 35.03 | 47.47 | 68.23 | 72.60 | 74.45 | 74.65 | 66.33 | 53.26 | 32.40 | 15.06 | 47.34 | |||||||||||||
1979 | 6.29 | 14.96 | 31.97 | 44.50 | 56.06 | 71.07 | 79.39 | 71.81 | 65.40 | 46.90 | 32.70 | 27.58 | 45.72 | |||||||||||||
1980 | 15.97 | 19.93 | 32.13 | 53.07 | 70.71 | 71.73 | 79.26 | 73.94 | 62.00 | 46.10 | 35.10 | 17.42 | 48.11 | |||||||||||||
1981 | 19.55 | 24.86 | 38.81 | 50.90 | 66.06 | 71.33 | 79.74 | 76.87 | 63.00 | 48.42 | 41.83 | 19.81 | 50.10 | |||||||||||||
1982 | 7.68 | c | 19.36 | 31.75 | c | 47.17 | ----- | z | 67.46 | b | 79.39 | 72.23 | 64.72 | a | 52.87 | 31.96 | c | 25.47 | a | 45.46 | a | |||||
1983 | 21.42 | 26.56 | a | 35.70 | a | 47.55 | a | 61.96 | d | 72.89 | c | 82.34 | b | 81.33 | d | 66.24 | a | 50.86 | c | 32.93 | 8.31 | b | 49.01 | |||
1984 | 13.31 | e | 33.07 | b | 31.97 | 56.29 | b | 62.50 | a | 73.17 | a | 78.93 | c | 81.24 | b | 62.20 | 54.83 | a | 35.66 | a | 19.20 | a | 50.20 | |||
1985 | 14.14 | b | 19.50 | 39.45 | b | 52.24 | a | 69.68 | c | 68.71 | b | 77.21 | b | 72.83 | b | 64.13 | 53.37 | a | 25.39 | b | 10.06 | 47.23 | ||||
1986 | 20.66 | b | 21.50 | 40.17 | a | 54.54 | b | 68.81 | 74.11 | b | 78.04 | c | 71.60 | a | 61.44 | c | 50.90 | b | 28.79 | a | 25.93 | b | 49.71 | |||
1987 | 26.19 | e | 34.26 | a | 41.64 | c | 63.74 | c | 68.33 | a | 78.62 | a | 80.62 | b | 75.11 | d | 66.86 | a | 47.04 | d | ----- | z | ----- | z | 58.24 | b |
1988 | 13.88 | e | 18.70 | b | 33.52 | b | 52.29 | b | 73.21 | b | 81.74 | g | 83.93 | c | 74.97 | b | 63.72 | a | 46.90 | a | 32.28 | a | 20.10 | b | 46.68 | a |
1989 | 23.10 | a | 15.00 | a | 29.58 | 47.58 | d | 68.24 | b | 72.38 | a | 82.71 | 76.80 | a | 67.30 | 55.71 | 29.03 | 10.61 | 48.17 | |||||||
1990 | 26.19 | 26.64 | 38.52 | 50.87 | 61.77 | 74.37 | 77.81 | 78.52 | 66.63 | 50.45 | 37.00 | 18.42 | 50.60 | |||||||||||||
1991 | 13.16 | 28.64 | 36.71 | 55.33 | 69.40 | a | 77.40 | 75.77 | a | 80.35 | 61.23 | 46.13 | a | 27.20 | 22.87 | 49.52 | ||||||||||
1992 | 21.52 | 26.45 | 35.23 | 44.07 | 69.07 | b | 69.14 | b | 70.27 | a | 71.28 | b | 64.10 | a | 48.55 | 28.50 | 18.48 | b | 47.22 | |||||||
1993 | 17.71 | 23.74 | a | 39.55 | b | 48.04 | c | 62.78 | d | 69.58 | d | 73.39 | c | 76.52 | d | 59.37 | c | 46.60 | a | 30.04 | c | 20.65 | 47.33 | |||
1994 | 4.10 | a | 18.16 | c | 37.30 | a | 49.93 | b | 66.96 | e | 75.30 | c | 74.76 | b | 73.50 | g | 67.45 | j | 58.13 | p | 40.68 | k | 28.06 | m | 46.64 | e |
1995 | 21.55 | k | 22.58 | i | 37.36 | i | 42.05 | k | 63.33 | j | 83.38 | i | ----- | z | ----- | z | 58.25 | n | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.11 | 22.07 | 35.33 | 50.17 | 65.11 | 73.08 | 78.59 | 75.53 | 64.29 | 51.67 | 34.12 | 19.29 | 48.49 | |||||||||||||
S.D. | 6.18 | 5.40 | 4.46 | 5.05 | 4.97 | 3.72 | 3.81 | 3.46 | 3.18 | 4.74 | 5.00 | 5.74 | 2.00 | |||||||||||||
SKEW | 0.13 | 0.18 | 0.18 | 1.22 | -0.13 | 0.54 | 0.14 | -0.08 | -0.67 | 0.64 | 0.39 | 0.40 | 1.14 | |||||||||||||
MAX | 27.45 | 34.26 | 46.13 | 66.23 | 74.45 | 84.13 | 87.68 | 81.54 | 70.33 | 65.32 | 45.70 | 35.13 | 54.41 | |||||||||||||
MIN | 4.10 | 10.40 | 26.81 | 42.80 | 56.06 | 63.67 | 70.27 | 67.55 | 54.97 | 42.93 | 24.00 | 8.31 | 45.38 | |||||||||||||
YRS | 40 | 40 | 42 | 41 | 40 | 40 | 41 | 41 | 40 | 41 | 41 | 39 | 34 |