YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.55 | j | ----- | z | ----- | z | 74.10 | 54.65 | 36.97 | a | 22.17 | b | 46.97 | h | ||
1968 | ----- | z | ----- | z | 42.97 | 54.80 | 63.90 | 74.63 | 78.90 | 77.00 | a | 69.45 | a | 56.45 | 37.60 | 18.97 | a | 57.47 | b | |||||||
1969 | 10.07 | a | 23.50 | 30.26 | 57.60 | 68.58 | 67.77 | 79.94 | 86.13 | 69.90 | 47.61 | 38.27 | 24.58 | 50.35 | ||||||||||||
1970 | 10.81 | 22.48 | a | 29.90 | 47.33 | 63.87 | 80.73 | 83.94 | 83.00 | 71.59 | a | 55.13 | 34.45 | a | 17.87 | 50.09 | ||||||||||
1971 | 6.55 | 22.96 | 33.58 | 53.73 | 65.39 | 78.93 | 77.00 | 79.19 | 70.30 | 57.26 | 39.80 | y | 15.57 | q | 54.49 | b | ||||||||||
1972 | 10.97 | 17.04 | a | 32.81 | 49.17 | a | 71.62 | b | 78.48 | a | 77.94 | 80.87 | 65.40 | 52.52 | 32.70 | 13.60 | a | 48.59 | ||||||||
1973 | 21.10 | a | 24.86 | 44.55 | 54.10 | 69.82 | i | 78.27 | 79.74 | 82.00 | 66.43 | 59.63 | d | 32.20 | 17.86 | b | 50.98 | a | ||||||||
1974 | 12.40 | a | 23.64 | 30.42 | 52.03 | 60.84 | 77.37 | 85.00 | 74.81 | 66.30 | 58.06 | 36.93 | a | 28.07 | a | 50.49 | ||||||||||
1975 | 20.03 | a | 20.96 | a | 28.70 | a | 42.43 | g | 72.50 | e | 74.17 | 83.32 | 77.00 | 65.07 | 58.84 | 38.40 | 20.97 | 50.91 | a | |||||||
1976 | 15.77 | 29.28 | 31.74 | 59.50 | 71.40 | a | 79.52 | a | 83.39 | 83.58 | 74.00 | 51.32 | 32.63 | 14.10 | b | 52.19 | ||||||||||
1977 | 5.00 | 24.92 | c | 39.68 | 63.07 | b | 79.00 | 76.33 | 82.17 | a | 72.77 | a | 64.37 | 57.71 | 33.07 | 12.48 | 50.88 | |||||||||
1978 | 7.07 | a | 15.96 | 33.32 | 51.43 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.00 | 14.58 | 25.73 | f | |||||
1979 | 3.06 | 11.54 | 31.48 | 44.87 | 58.16 | ----- | z | 80.58 | ----- | z | ----- | z | ----- | z | 33.00 | 29.26 | 36.49 | d | ||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | 81.06 | m | 76.87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.87 | k | |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | 68.29 | 72.80 | 80.55 | 79.52 | 67.90 | 51.84 | 43.57 | 19.00 | b | 60.43 | d | |||||||
1982 | 1.66 | b | 18.64 | 29.57 | a | 51.76 | a | 67.19 | 69.62 | f | 81.32 | 78.61 | 68.97 | 53.81 | 32.50 | d | 26.76 | b | 46.43 | a | ||||||
1983 | 20.92 | e | 27.07 | a | 35.58 | 51.37 | 62.94 | 73.73 | 82.87 | 84.19 | 66.73 | 52.44 | v | 30.57 | i | 8.10 | b | 51.35 | b | |||||||
1984 | 17.45 | b | 31.68 | a | 30.67 | a | 57.66 | a | 65.10 | 75.10 | 82.65 | 85.77 | 66.14 | b | 57.20 | a | 35.57 | b | 17.93 | b | 51.91 | |||||
1985 | 14.10 | a | 17.41 | a | 39.58 | 56.70 | 70.90 | 69.62 | a | 79.03 | a | 73.35 | 62.38 | a | 54.30 | a | 25.67 | 12.61 | c | 47.97 | ||||||
1986 | 27.24 | n | 17.79 | 38.48 | 53.60 | 68.58 | 76.52 | a | 80.40 | k | 77.33 | j | 65.67 | 56.76 | b | 29.90 | 26.53 | a | 48.20 | c | ||||||
1987 | 21.20 | a | 31.86 | 39.37 | a | ----- | z | ----- | z | 79.18 | m | 79.23 | 74.87 | 67.33 | 49.83 | a | 41.93 | b | 24.61 | 47.80 | c | |||||
1988 | 11.77 | 15.21 | 32.84 | 53.67 | 71.12 | e | 82.92 | e | 83.88 | e | 81.24 | b | 67.04 | d | 50.76 | b | 33.71 | b | 21.14 | c | 50.44 | |||||
1989 | 21.28 | b | 10.77 | b | 25.43 | c | 49.52 | a | 70.60 | a | 75.03 | a | 84.87 | a | 81.17 | a | 70.83 | a | 57.93 | a | 30.43 | 12.60 | a | 49.20 | ||
1990 | 29.13 | 25.14 | 39.03 | a | 54.20 | 67.97 | b | 76.73 | 80.77 | 81.94 | 73.23 | 57.00 | 39.67 | 17.58 | 53.53 | |||||||||||
1991 | 11.77 | 28.00 | 37.55 | 56.33 | 68.45 | 77.93 | 77.89 | c | 82.00 | 65.93 | 48.35 | 27.17 | 22.55 | 50.33 | ||||||||||||
1992 | 23.52 | 26.69 | 37.00 | 45.67 | 68.84 | 70.67 | 70.97 | a | 73.53 | a | 65.07 | a | 54.42 | 29.33 | 16.17 | a | 48.49 | |||||||||
1993 | 13.55 | 17.04 | 32.65 | 51.63 | 65.03 | 69.07 | ----- | z | 76.00 | 61.40 | 50.39 | 30.13 | 21.04 | d | 44.36 | a | ||||||||||
1994 | 2.14 | b | 11.75 | 36.10 | 51.40 | 68.23 | 75.00 | 74.71 | c | 74.63 | a | 69.70 | 56.10 | 39.57 | 27.55 | 48.91 | ||||||||||
1995 | 15.26 | 17.79 | 34.50 | a | 44.10 | 63.19 | 81.00 | a | 77.32 | c | 78.58 | 66.27 | 50.19 | 24.87 | 20.38 | g | 50.28 | a | ||||||||
1996 | 26.09 | t | 25.09 | g | ----- | z | 41.30 | 62.52 | 76.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.11 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.61 | 21.36 | 34.53 | 52.26 | 67.37 | 75.83 | 80.33 | 79.24 | 67.75 | 54.32 | 33.93 | 19.56 | 50.24 | |||||||||||||
S.D. | 7.27 | 6.09 | 4.66 | 5.05 | 4.42 | 3.78 | 3.36 | 4.02 | 3.30 | 3.48 | 4.77 | 5.64 | 1.56 | |||||||||||||
SKEW | 0.11 | -0.04 | 0.30 | -0.19 | 0.27 | -0.40 | -0.85 | -0.03 | 0.30 | -0.36 | 0.06 | -0.01 | 0.48 | |||||||||||||
MAX | 29.13 | 31.86 | 44.55 | 63.07 | 79.00 | 82.92 | 85.00 | 86.13 | 74.10 | 59.63 | 43.57 | 29.26 | 53.53 | |||||||||||||
MIN | 1.66 | 10.77 | 25.43 | 41.30 | 58.16 | 67.77 | 70.97 | 72.77 | 61.40 | 47.61 | 24.87 | 8.10 | 47.97 | |||||||||||||
YRS | 24 | 25 | 26 | 25 | 25 | 25 | 24 | 24 | 26 | 25 | 26 | 26 | 14 |