YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.38 | f | 90.42 | e | 85.79 | b | 82.42 | f | 75.52 | f | 60.62 | d | 56.29 | 73.28 | h | |
1962 | 54.72 | b | 62.96 | 61.42 | 78.69 | a | 81.77 | a | 89.30 | 86.81 | 91.74 | 85.13 | 80.19 | 69.90 | 58.39 | 75.09 | ||||||||||
1963 | 56.32 | 64.57 | 67.17 | a | 74.43 | 85.26 | 88.83 | 90.58 | 84.65 | 85.33 | 78.42 | ----- | z | 59.47 | a | 75.91 | a | |||||||||
1964 | 54.26 | ----- | z | ----- | z | 70.37 | 82.58 | 88.43 | 90.30 | a | 85.77 | 79.20 | 77.29 | 62.47 | 60.94 | 75.16 | b | |||||||||
1965 | 59.06 | ----- | z | ----- | z | 72.93 | ----- | z | ----- | z | 89.52 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.84 | i | |||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 82.84 | 89.30 | 89.55 | 84.48 | 81.77 | 75.90 | 68.63 | 57.26 | 78.72 | d | ||||||||
1967 | 61.26 | 62.96 | 72.06 | 73.30 | 80.39 | 86.87 | 87.71 | 86.42 | 82.00 | ----- | z | ----- | z | 52.61 | 74.56 | b | ||||||||||
1968 | 56.26 | 62.66 | 61.77 | 69.50 | 80.65 | 90.53 | 86.55 | ----- | z | 83.03 | 79.29 | 64.20 | 56.87 | 71.94 | a | |||||||||||
1969 | 60.77 | 59.00 | 61.77 | 76.33 | 81.03 | a | 88.73 | 88.58 | 89.57 | a | 84.87 | 75.06 | 64.03 | 59.16 | 74.08 | |||||||||||
1970 | 58.58 | 62.93 | 62.55 | 70.83 | 82.26 | 89.53 | 88.23 | 88.00 | 82.66 | a | 74.87 | 70.20 | 63.27 | a | 74.49 | |||||||||||
1971 | 64.00 | 63.32 | 72.74 | 74.53 | 80.39 | 90.00 | 91.74 | 85.57 | a | 84.40 | 71.26 | 66.63 | 56.90 | 75.12 | ||||||||||||
1972 | 63.19 | 66.86 | 75.61 | 78.67 | 81.50 | c | 88.93 | 91.77 | 86.94 | 83.67 | 74.81 | 62.77 | 59.45 | b | 76.18 | |||||||||||
1973 | 55.13 | a | 59.46 | 60.10 | a | 69.45 | a | 82.33 | a | 89.93 | a | 88.90 | 90.45 | 87.93 | 80.61 | 69.83 | 63.35 | 74.79 | ||||||||
1974 | 59.97 | 64.11 | 71.74 | 77.93 | 86.26 | 96.13 | 89.06 | 86.81 | 81.80 | 73.03 | 64.60 | 56.21 | b | 75.64 | ||||||||||||
1975 | 59.74 | 61.11 | 65.84 | 71.17 | 82.42 | 93.13 | 89.55 | 91.03 | 82.30 | 77.55 | b | 67.53 | 59.39 | 75.06 | ||||||||||||
1976 | 58.35 | 64.03 | 68.39 | 75.00 | 83.48 | 90.87 | 85.48 | 88.10 | 80.83 | ----- | z | 63.00 | 56.23 | 73.98 | a | |||||||||||
1977 | 53.68 | 63.57 | 62.77 | 73.43 | 76.84 | 91.03 | 87.94 | 87.90 | a | 85.60 | 75.13 | 69.00 | 63.90 | 74.23 | ||||||||||||
1978 | 57.94 | 58.04 | 67.26 | 72.85 | c | 82.23 | a | 92.63 | 91.52 | 86.90 | 82.00 | 77.10 | 63.03 | ----- | z | 75.59 | a | |||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.35 | 86.77 | 86.70 | 82.52 | 64.57 | 60.74 | 78.78 | f | ||||||
1980 | 57.90 | 60.10 | 63.48 | ----- | z | ----- | z | 94.57 | b | 92.81 | 87.59 | b | 87.10 | a | 74.07 | a | 64.67 | c | ----- | z | 75.81 | c | ||||
1981 | 57.10 | 64.64 | 63.29 | 74.63 | 79.71 | 91.57 | 87.68 | 87.65 | 85.69 | a | 74.37 | a | 70.23 | 63.23 | 74.98 | |||||||||||
1982 | ----- | z | ----- | z | 66.85 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.85 | k |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | 81.20 | a | 91.43 | 91.55 | b | 88.93 | a | 88.93 | 81.23 | a | 65.70 | 61.23 | 81.28 | d | ||||
1993 | 60.06 | 62.32 | 71.68 | 79.33 | 85.06 | 93.13 | 90.16 | 87.74 | 85.33 | 77.48 | 67.31 | a | 61.94 | 76.80 | ||||||||||||
1994 | 64.39 | c | 62.64 | 68.73 | a | 75.69 | a | 82.87 | a | 95.52 | a | 93.97 | 91.90 | b | 86.43 | 76.18 | c | 65.33 | 59.65 | 76.94 | ||||||
1995 | 57.94 | 64.81 | b | 68.86 | b | 74.00 | a | 79.33 | a | 89.97 | 93.45 | 91.72 | b | 87.34 | a | 83.45 | 72.04 | b | 63.18 | c | 77.17 | |||||
1996 | 65.61 | 67.50 | a | 68.97 | a | 79.00 | b | 88.39 | 94.20 | 91.67 | a | 88.86 | b | 83.10 | a | ----- | z | ----- | z | ----- | z | 80.81 | c | |||
1997 | 55.81 | e | ----- | z | 72.30 | d | 71.58 | d | 85.63 | d | 89.10 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.88 | g |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 58.79 | 62.88 | 67.06 | 74.26 | 82.37 | 90.99 | 89.88 | 87.97 | 84.30 | 77.13 | 66.20 | 59.53 | 75.43 | |||||||||||||
S.D. | 3.32 | 2.43 | 4.45 | 3.11 | 2.53 | 2.42 | 2.16 | 2.19 | 2.47 | 3.19 | 3.12 | 2.99 | 1.04 | |||||||||||||
SKEW | 0.44 | -0.21 | 0.12 | 0.16 | 0.33 | 0.61 | -0.07 | 0.40 | -0.05 | 0.31 | 0.17 | -0.32 | 0.49 | |||||||||||||
MAX | 65.61 | 67.50 | 75.61 | 79.33 | 88.39 | 96.13 | 93.97 | 91.90 | 88.93 | 83.45 | 72.04 | 63.90 | 77.17 | |||||||||||||
MIN | 53.68 | 58.04 | 60.10 | 69.45 | 76.84 | 86.87 | 85.48 | 84.48 | 79.20 | 71.26 | 60.62 | 52.61 | 74.08 | |||||||||||||
YRS | 23 | 20 | 22 | 22 | 23 | 24 | 26 | 24 | 24 | 21 | 22 | 22 | 13 |