YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1968 | ----- | z | ----- | z | 63.50 | a | 74.37 | c | 85.00 | c | 96.40 | 90.97 | 91.16 | 86.00 | 79.13 | 61.70 | 60.52 | 78.87 | b | |||||||
1969 | 61.74 | 63.04 | 58.00 | 78.83 | 86.65 | 92.47 | 97.35 | 96.29 | 85.21 | a | 72.77 | a | 62.83 | 58.77 | 76.16 | |||||||||||
1970 | 54.84 | 59.78 | a | 61.19 | 76.87 | 85.65 | 91.13 | 92.87 | 93.77 | 84.40 | 69.68 | 66.97 | 64.63 | a | 75.15 | |||||||||||
1971 | 60.52 | 60.46 | 71.39 | 75.90 | 84.71 | 94.47 | 94.55 | 84.10 | 83.24 | a | 74.03 | 65.90 | 56.45 | 75.48 | ||||||||||||
1972 | 59.23 | 62.45 | 75.13 | 82.43 | 84.10 | 93.11 | c | 92.07 | c | 88.55 | 84.27 | 74.71 | 57.57 | 56.35 | 75.83 | |||||||||||
1973 | 48.87 | 53.57 | 64.26 | 73.10 | 82.48 | 91.47 | 92.00 | 93.26 | 84.67 | 80.06 | 69.50 | 63.32 | 74.71 | |||||||||||||
1974 | 56.71 | 63.71 | 76.83 | b | 79.63 | 89.39 | 95.63 | 95.92 | f | 88.93 | b | 76.27 | 72.32 | 63.20 | 54.35 | 74.27 | a | |||||||||
1975 | 57.48 | f | 59.63 | a | 66.87 | 74.63 | 83.58 | 94.60 | 87.63 | a | 91.52 | 81.50 | 79.19 | 68.17 | 59.03 | 76.94 | a | |||||||||
1976 | 55.73 | a | 67.76 | 69.03 | 76.53 | 80.13 | 93.07 | 88.83 | g | 92.35 | 81.23 | 69.52 | 56.13 | 55.77 | 72.48 | a | ||||||||||
1977 | 50.00 | 61.21 | 66.13 | 75.83 | 86.74 | 95.47 | 95.84 | 97.68 | 93.20 | 77.23 | 68.70 | 63.26 | 77.61 | |||||||||||||
1978 | 52.35 | 54.36 | 70.48 | 83.87 | 86.55 | 95.23 | d | 98.57 | h | 93.61 | c | 81.32 | e | 76.00 | f | 61.23 | d | 54.03 | 73.30 | b | ||||||
1979 | 46.39 | 58.15 | a | 66.03 | b | 77.53 | 82.42 | 89.00 | 95.12 | g | 89.94 | 85.83 | 82.06 | 60.27 | 57.66 | b | 72.30 | a | ||||||||
1980 | 56.32 | 59.83 | 68.65 | 75.43 | b | 83.10 | 100.21 | a | 101.17 | g | 93.42 | 85.60 | ----- | z | 60.73 | 59.61 | 74.29 | b | ||||||||
1981 | 55.29 | 63.18 | 65.58 | 76.80 | 83.90 | 95.17 | 95.29 | 88.29 | 84.52 | a | 75.58 | 72.43 | 62.74 | 76.56 | ||||||||||||
1982 | 58.10 | 58.79 | 71.16 | 77.28 | a | 82.87 | 94.97 | a | 96.29 | 95.10 | b | 89.79 | a | 75.63 | d | 62.36 | b | 51.33 | a | 76.14 | ||||||
1983 | 52.39 | 59.21 | 68.23 | 70.17 | 85.77 | 90.70 | c | 96.52 | j | 96.26 | h | 88.62 | i | 74.81 | j | 66.08 | e | 52.30 | a | 68.11 | d | |||||
1984 | 51.32 | 61.48 | 68.29 | 77.43 | 86.52 | 88.83 | 91.81 | 90.39 | 84.00 | b | 69.52 | 63.48 | a | 54.11 | c | 73.93 | ||||||||||
1985 | 50.79 | b | 55.86 | f | 69.77 | a | 78.53 | 86.13 | 89.30 | 93.56 | d | 94.97 | 82.00 | 71.29 | 66.90 | 56.30 | a | 76.32 | a | |||||||
1986 | 59.94 | 61.29 | 69.87 | 80.93 | 84.37 | a | 86.70 | 91.71 | 90.55 | k | ----- | z | 73.20 | a | 60.07 | 51.21 | c | 71.93 | b | |||||||
1987 | 54.23 | 58.61 | 61.55 | 72.17 | 80.90 | 89.10 | 93.35 | 91.30 | a | 82.60 | 78.94 | 63.28 | a | 54.57 | a | 73.38 | ||||||||||
1988 | 51.03 | a | 59.86 | 68.26 | 75.20 | 83.39 | 91.10 | 91.43 | a | 91.29 | c | 86.03 | 79.47 | a | 68.23 | 54.45 | b | 74.98 | ||||||||
1989 | 57.52 | 57.15 | a | 73.10 | 85.07 | a | 90.19 | 93.93 | 94.59 | b | 91.97 | 83.79 | a | 79.58 | 67.00 | a | 49.13 | a | 76.92 | |||||||
1990 | 58.71 | 63.36 | 66.90 | b | 76.23 | 85.28 | b | 100.75 | b | 90.55 | 88.00 | 83.90 | 76.63 | a | 66.79 | a | 55.36 | c | 76.04 | |||||||
1991 | 49.48 | 62.16 | c | 69.06 | 78.43 | 88.87 | 93.67 | 88.52 | 89.58 | 79.50 | 79.42 | 59.60 | 55.16 | 74.45 | ||||||||||||
1992 | 50.84 | 60.38 | 69.90 | 79.89 | b | 79.48 | 89.93 | 93.56 | d | 91.07 | c | 88.57 | 79.64 | c | 60.26 | c | 56.33 | d | 74.99 | |||||||
1993 | 56.50 | c | 58.81 | b | 68.62 | b | 77.19 | c | 84.76 | b | 94.52 | e | 94.84 | f | 93.10 | 86.07 | 75.19 | 61.53 | 58.64 | c | 74.08 | a | ||||
1994 | 58.50 | a | 61.57 | 69.79 | b | 77.50 | 84.13 | a | 98.43 | 96.52 | 94.78 | h | 85.93 | 75.71 | 65.90 | a | 59.93 | b | 75.81 | a | ||||||
1995 | 56.29 | 65.04 | a | 67.77 | 77.43 | 85.47 | a | 93.00 | 98.21 | c | 94.97 | 83.83 | a | 80.26 | 68.11 | b | 58.97 | b | 77.45 | |||||||
1996 | 58.34 | b | 63.97 | 67.87 | 78.00 | 95.97 | 96.03 | a | 95.16 | 89.90 | 83.27 | 77.12 | e | 65.90 | 61.39 | 77.74 | ||||||||||
1997 | 52.35 | 54.82 | 71.35 | 72.28 | a | 83.23 | 93.37 | 95.50 | a | 94.55 | 89.10 | 76.29 | 62.23 | 52.07 | b | 74.76 | ||||||||||
1998 | 61.03 | 60.07 | 67.23 | 75.23 | 92.39 | 99.03 | 98.68 | 91.74 | 91.53 | 78.65 | 68.10 | 56.10 | 78.31 | |||||||||||||
1999 | 62.55 | 68.64 | 69.40 | a | 76.73 | 84.87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.44 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 55.26 | 60.74 | 68.16 | 77.11 | 85.28 | 93.57 | 93.67 | 91.81 | 84.73 | 76.17 | 64.23 | 56.90 | 75.82 | |||||||||||||
S.D. | 4.25 | 3.42 | 3.81 | 3.18 | 3.36 | 3.42 | 2.85 | 2.90 | 3.48 | 3.57 | 3.85 | 3.88 | 1.36 | |||||||||||||
SKEW | -0.17 | 0.08 | -0.38 | 0.38 | 1.13 | 0.17 | -0.20 | -0.33 | 0.26 | -0.45 | -0.07 | 0.15 | 0.15 | |||||||||||||
MAX | 62.55 | 68.64 | 76.83 | 85.07 | 95.97 | 100.75 | 98.68 | 97.68 | 93.20 | 82.06 | 72.43 | 64.63 | 78.31 | |||||||||||||
MIN | 46.39 | 53.57 | 58.00 | 70.17 | 79.48 | 86.70 | 87.63 | 84.10 | 76.27 | 69.52 | 56.13 | 49.13 | 73.38 | |||||||||||||
YRS | 30 | 30 | 32 | 32 | 32 | 31 | 24 | 28 | 29 | 28 | 31 | 31 | 19 |