YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 90.79 | a | 97.32 | 93.42 | 89.97 | 78.23 | 73.47 | 64.90 | 84.01 | e | ||||||
1967 | 62.90 | 65.79 | 79.55 | 86.72 | a | 92.26 | 96.27 | 96.65 | 92.06 | 85.20 | 81.94 | 70.60 | 56.35 | 80.52 | ||||||||||||
1968 | 57.35 | 59.59 | 66.16 | 79.97 | 87.58 | 95.23 | 91.71 | 95.16 | 85.47 | 82.97 | 67.23 | 61.32 | 77.48 | |||||||||||||
1969 | 62.65 | 65.07 | 67.03 | 82.27 | 86.71 | 95.93 | 99.58 | 97.81 | 89.90 | 76.97 | 66.13 | 65.52 | 79.63 | |||||||||||||
1970 | 58.10 | 63.43 | 68.52 | 83.33 | 86.65 | 91.63 | 95.19 | 95.84 | 87.63 | 75.23 | 70.73 | 67.13 | 78.62 | |||||||||||||
1971 | 68.26 | 68.14 | 78.90 | 81.20 | 89.16 | 90.97 | 93.94 | 87.33 | a | 86.70 | 77.87 | 70.63 | 61.94 | 79.59 | ||||||||||||
1972 | 66.81 | 69.00 | 80.87 | 87.87 | 86.00 | 94.87 | 92.71 | 90.58 | 90.83 | 79.29 | 64.93 | 62.00 | 80.48 | |||||||||||||
1973 | 55.84 | 59.59 | a | 76.06 | 79.43 | 89.97 | a | 93.10 | 93.00 | 93.35 | 89.07 | 80.71 | 74.60 | 67.00 | c | 79.31 | ||||||||||
1974 | 63.06 | 70.21 | 80.00 | 83.57 | 91.03 | 96.33 | 96.26 | 92.23 | 80.47 | 77.06 | 65.77 | 59.94 | 79.66 | |||||||||||||
1975 | 62.06 | 64.82 | 75.58 | 81.67 | 87.74 | 93.97 | 89.94 | 93.03 | 85.23 | 79.68 | 71.57 | b | 62.90 | 79.02 | ||||||||||||
1976 | 62.17 | b | 73.41 | 76.28 | b | 81.70 | 82.97 | 94.43 | 87.42 | 94.26 | 86.43 | 73.48 | 61.23 | 59.00 | 77.73 | |||||||||||
1977 | 55.13 | 66.32 | 73.03 | a | 80.03 | 87.52 | 95.87 | 96.39 | 99.81 | 97.80 | 82.61 | 74.23 | 68.55 | 81.44 | ||||||||||||
1978 | 55.55 | 56.93 | 74.32 | 86.47 | 92.26 | 94.20 | 97.10 | 94.00 | 82.93 | 75.20 | a | 63.52 | g | 59.27 | a | 78.93 | a | |||||||||
1979 | 50.00 | 62.07 | 72.16 | 82.90 | 86.55 | 89.57 | 97.16 | 93.65 | 91.53 | 88.13 | 66.90 | 63.03 | 78.64 | |||||||||||||
1980 | 64.13 | 64.10 | 74.32 | 82.33 | 88.77 | 98.87 | 100.84 | 93.00 | a | 89.23 | 77.87 | a | 65.47 | 61.45 | 80.03 | |||||||||||
1981 | 60.35 | 64.29 | 69.45 | 78.77 | 85.29 | 91.00 | 95.13 | a | 91.77 | a | 89.80 | 78.42 | 74.77 | 66.81 | 78.82 | |||||||||||
1982 | 64.16 | 60.82 | 76.60 | a | 83.72 | a | 85.90 | 95.27 | 97.39 | 99.10 | 93.27 | 80.48 | 67.07 | 59.58 | 80.28 | |||||||||||
1983 | 59.20 | a | 64.36 | 72.48 | 79.14 | a | 90.94 | 92.67 | 96.97 | a | 96.55 | 90.93 | 80.39 | 71.47 | 54.03 | a | 79.09 | |||||||||
1984 | 54.97 | a | 67.48 | 75.65 | 86.00 | a | 91.42 | 93.07 | 95.71 | 96.68 | 89.17 | a | 76.68 | 66.07 | a | 63.06 | 79.66 | |||||||||
1985 | 54.71 | 59.54 | 73.55 | 83.43 | 91.62 | b | 91.50 | 93.60 | a | 97.35 | 90.80 | 78.45 | k | 73.65 | d | 60.77 | 79.14 | a | ||||||||
1986 | 65.30 | a | 69.68 | c | 77.84 | 87.03 | 90.13 | a | ----- | z | 96.65 | h | 94.10 | j | 91.28 | e | 75.62 | b | 66.81 | d | ----- | z | 77.96 | d | ||
1987 | 62.40 | f | 64.16 | c | 69.18 | c | 82.30 | c | 89.64 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.88 | i |
1988 | ----- | z | ----- | z | ----- | z | 87.21 | k | 88.08 | e | 92.50 | 95.81 | 95.85 | d | 89.45 | a | 82.19 | 77.55 | a | 65.36 | c | 85.85 | d | |||
1989 | 63.80 | a | 61.00 | ----- | z | 91.33 | u | 95.54 | g | 96.50 | b | 98.97 | 96.34 | b | 92.50 | h | 80.46 | g | 71.14 | a | 54.80 | a | 77.51 | e | ||
1990 | 64.46 | g | 68.44 | c | 72.27 | a | 80.93 | b | 91.09 | i | 99.97 | 91.06 | 92.54 | c | 87.20 | 77.37 | d | 69.61 | b | 60.90 | b | 80.03 | b | |||
1991 | 56.72 | f | 67.32 | 78.50 | c | 86.00 | 91.77 | 96.27 | 95.29 | c | 96.78 | d | 83.93 | a | 80.37 | d | 63.29 | b | 58.11 | c | 81.60 | a | ||||
1992 | 55.81 | 66.14 | 76.73 | a | 80.93 | 82.57 | c | 95.90 | a | 95.43 | c | 94.13 | 91.65 | d | 85.04 | d | 66.67 | 61.35 | e | 79.36 | ||||||
1993 | 59.82 | c | 66.36 | 76.03 | a | 84.57 | 91.07 | a | 95.07 | 98.68 | c | 100.14 | b | 88.24 | a | 81.48 | 65.19 | i | ----- | z | 84.15 | b | ||||
1994 | ----- | z | ----- | z | ----- | z | ----- | z | 88.60 | a | 100.17 | 98.60 | a | 95.74 | 90.87 | 83.77 | ----- | z | ----- | z | 92.96 | f | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.09 | 64.93 | 74.44 | 82.89 | 88.50 | 94.51 | 95.47 | 94.76 | 88.70 | 79.58 | 69.26 | 61.80 | 79.41 | |||||||||||||
S.D. | 4.61 | 3.87 | 4.06 | 2.64 | 2.77 | 2.73 | 3.07 | 2.90 | 3.52 | 3.39 | 4.09 | 3.79 | 0.98 | |||||||||||||
SKEW | -0.22 | -0.06 | -0.43 | 0.29 | -0.43 | 0.24 | -0.71 | -0.21 | -0.04 | 0.45 | 0.11 | -0.18 | -0.08 | |||||||||||||
MAX | 68.26 | 73.41 | 80.87 | 87.87 | 92.26 | 100.17 | 100.84 | 100.14 | 97.80 | 88.13 | 77.55 | 68.55 | 81.44 | |||||||||||||
MIN | 50.00 | 56.93 | 66.16 | 78.77 | 82.57 | 89.57 | 87.42 | 87.33 | 80.47 | 73.48 | 61.23 | 54.03 | 77.48 | |||||||||||||
YRS | 23 | 26 | 25 | 25 | 25 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 18 |