YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1964 | ----- | z | 54.95 | a | 60.98 | 67.18 | 75.90 | a | 84.98 | 93.00 | a | 90.72 | a | 84.65 | 80.27 | 59.55 | 56.35 | 73.50 | a | |||||||
1965 | 57.10 | 59.45 | 60.47 | 69.87 | 75.13 | 80.33 | 91.79 | 91.37 | 83.02 | 79.81 | 66.12 | 56.56 | 72.58 | |||||||||||||
1966 | 52.97 | 55.14 | 65.45 | a | 72.92 | 81.18 | 86.92 | 93.27 | 92.58 | 87.20 | 75.00 | 66.08 | 58.52 | 73.94 | ||||||||||||
1967 | 57.08 | a | 61.80 | 64.02 | a | 63.00 | 76.71 | c | 82.53 | 94.95 | 94.82 | a | 85.85 | 79.23 | 67.68 | 52.30 | a | 73.33 | ||||||||
1968 | 56.16 | 65.24 | 65.23 | 69.98 | 79.00 | 86.62 | a | 90.47 | 88.52 | 86.95 | 76.27 | 66.23 | 53.26 | 73.66 | ||||||||||||
1969 | 59.58 | 57.39 | 62.55 | 71.22 | 80.98 | 83.32 | 93.92 | 96.84 | 89.15 | 73.00 | 64.30 | 57.39 | 74.14 | |||||||||||||
1970 | ----- | z | 61.70 | 63.48 | 66.58 | 79.92 | 87.29 | a | 94.95 | a | 93.47 | 85.27 | 73.44 | 64.88 | 55.89 | 75.17 | a | |||||||||
1971 | 56.74 | 60.48 | 65.63 | 67.75 | 74.03 | 84.78 | 93.13 | 90.16 | 86.78 | a | 70.28 | b | 61.23 | 51.95 | 71.91 | |||||||||||
1972 | 53.66 | i | 62.48 | 73.17 | j | ----- | z | 78.03 | b | 87.92 | 95.48 | 90.30 | a | 84.90 | a | 72.43 | a | 60.30 | 55.19 | 76.34 | c | |||||
1973 | 54.29 | 59.62 | 59.35 | 70.18 | 81.15 | 89.58 | 92.52 | 92.11 | 85.13 | 76.57 | a | 62.69 | a | 58.52 | 73.48 | |||||||||||
1974 | 55.76 | 59.02 | 65.80 | a | 71.90 | 79.05 | a | 91.60 | 92.39 | 91.32 | 89.17 | 76.69 | 65.93 | 54.24 | 74.41 | |||||||||||
1975 | 55.89 | 56.89 | 60.41 | b | 62.70 | 76.82 | 85.53 | 91.71 | 92.56 | 87.97 | 73.94 | 65.35 | 58.05 | a | 72.32 | |||||||||||
1976 | 58.73 | 59.84 | d | 62.88 | a | 67.00 | 79.68 | a | 87.22 | 90.71 | 89.79 | 82.17 | 75.55 | 67.15 | 58.24 | 73.25 | ||||||||||
1977 | 56.52 | 64.43 | 58.75 | a | 72.07 | a | 72.07 | a | 89.38 | 94.65 | 91.94 | 86.67 | 79.66 | 69.47 | 61.55 | 74.76 | ||||||||||
1978 | 57.72 | a | 57.82 | 67.58 | a | 69.18 | e | 78.02 | 90.16 | a | 93.98 | a | 91.65 | a | 85.40 | 79.88 | b | 64.05 | 53.34 | 74.06 | ||||||
1979 | 51.89 | 57.78 | c | 63.59 | b | 72.04 | e | 77.94 | 89.29 | b | 92.58 | 89.74 | 91.92 | 78.32 | 62.20 | 60.16 | 73.95 | |||||||||
1980 | 59.73 | 63.28 | 62.76 | 71.35 | 73.85 | 88.33 | 96.20 | a | 92.23 | 88.52 | 78.05 | 66.52 | 63.55 | 75.36 | ||||||||||||
1981 | 61.48 | 63.98 | 64.68 | 73.53 | 78.82 | 92.72 | 95.52 | a | 95.24 | 89.88 | a | 72.85 | 67.87 | 61.52 | 76.51 | |||||||||||
1982 | 56.03 | a | 62.73 | 63.07 | a | 71.25 | b | 77.77 | 84.54 | c | 92.07 | a | 93.23 | c | 85.04 | c | 74.74 | 62.98 | 55.08 | 73.21 | ||||||
1983 | 59.84 | 60.34 | 63.53 | 65.59 | a | 78.67 | a | 86.12 | a | 94.08 | 91.14 | b | 89.22 | 77.65 | a | 64.53 | 58.76 | 74.12 | ||||||||
1984 | 59.50 | 61.09 | 67.02 | b | 69.80 | 86.07 | a | 86.60 | a | 92.19 | b | 91.25 | a | 90.87 | 72.32 | 62.17 | 55.13 | 74.50 | ||||||||
1985 | 55.24 | 58.52 | 63.81 | e | 75.83 | d | 80.97 | b | 90.07 | c | 94.09 | b | 93.52 | 79.84 | a | 75.33 | d | 61.57 | a | 58.82 | a | 73.97 | ||||
1986 | 64.15 | 63.57 | a | 69.63 | a | 72.69 | d | 82.50 | g | 90.38 | a | 91.17 | a | 94.55 | a | 81.37 | 73.08 | 65.41 | a | 57.84 | 74.89 | a | ||||
1987 | 55.44 | 60.04 | 64.25 | g | 77.85 | d | 80.14 | c | 89.48 | b | 91.12 | c | 92.77 | 87.80 | b | 80.07 | a | 63.90 | 53.07 | a | 75.61 | a | ||||
1988 | 56.32 | 64.11 | a | 67.98 | c | 70.52 | d | 83.39 | h | 88.66 | b | 93.83 | a | 92.61 | c | 87.25 | 81.98 | a | 63.91 | c | 56.68 | a | 74.90 | a | ||
1989 | 55.23 | c | 60.15 | a | 71.68 | f | 78.55 | 80.72 | d | 88.80 | b | 94.58 | m | 91.52 | 87.20 | 77.39 | c | 66.57 | 58.77 | 74.49 | b | |||||
1990 | 55.89 | 57.65 | a | 67.46 | e | 74.04 | c | 77.10 | a | 89.63 | 93.00 | y | 91.25 | a | 87.75 | 76.79 | b | 64.13 | 52.06 | 72.16 | a | |||||
1991 | 56.14 | b | 65.71 | 59.32 | a | 70.85 | c | 77.52 | f | 84.57 | 92.05 | 92.40 | ----- | z | 80.20 | a | 64.66 | b | 56.45 | b | 72.23 | b | ||||
1992 | 57.16 | 62.91 | 63.69 | 76.20 | b | 82.16 | 87.04 | c | 92.40 | a | 93.60 | 89.17 | 78.40 | b | 61.63 | 52.81 | 74.76 | |||||||||
1993 | 56.18 | a | 57.98 | b | 67.69 | b | 74.45 | 81.63 | a | 91.17 | o | 91.08 | 92.09 | b | 87.50 | 77.53 | a | 61.88 | 56.21 | 73.11 | a | |||||
1994 | ----- | z | ----- | z | ----- | z | 72.73 | 77.60 | a | 93.12 | a | 95.44 | 96.66 | 89.12 | 74.34 | 56.82 | b | 55.60 | 79.05 | c | ||||||
1995 | 56.45 | i | 67.50 | a | 68.02 | a | 71.32 | 76.21 | 87.71 | a | 96.74 | b | 97.89 | 92.90 | a | 79.41 | d | 71.89 | b | 64.72 | m | 80.96 | b | |||
1996 | 65.27 | r | 66.94 | b | 68.86 | c | 75.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.33 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 56.99 | 60.95 | 64.27 | 71.10 | 78.53 | 87.59 | 93.25 | 92.49 | 86.95 | 76.58 | 64.36 | 56.58 | 73.91 | |||||||||||||
S.D. | 2.55 | 3.26 | 3.02 | 3.78 | 2.90 | 2.91 | 1.71 | 2.13 | 2.93 | 2.95 | 3.01 | 2.95 | 1.05 | |||||||||||||
SKEW | 0.71 | 0.14 | -0.10 | -0.27 | 0.06 | -0.33 | 0.25 | 0.72 | -0.37 | -0.20 | -0.02 | 0.30 | 0.32 | |||||||||||||
MAX | 64.15 | 67.50 | 69.63 | 78.55 | 86.07 | 93.12 | 96.74 | 97.89 | 92.90 | 81.98 | 71.89 | 63.55 | 76.51 | |||||||||||||
MIN | 51.89 | 54.95 | 58.75 | 62.70 | 72.07 | 80.33 | 90.47 | 88.52 | 79.84 | 70.28 | 56.82 | 51.95 | 71.91 | |||||||||||||
YRS | 27 | 32 | 29 | 32 | 29 | 31 | 30 | 32 | 31 | 32 | 32 | 31 | 20 |