YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | 50.97 | 46.75 | 57.10 | 68.69 | a | 81.77 | a | 84.73 | 93.77 | 96.03 | a | 90.61 | g | 68.70 | a | 60.55 | a | 52.03 | 69.19 | a | ||||||
1970 | 46.19 | 56.54 | 60.87 | a | 64.72 | a | 79.84 | 88.26 | c | 94.77 | i | 93.43 | c | 83.33 | 68.30 | d | 58.55 | a | 45.97 | 67.82 | a | |||||
1971 | 54.00 | a | 57.85 | a | 62.73 | e | 67.38 | a | 71.94 | 88.97 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.14 | f | ||
1972 | 49.93 | a | 59.52 | 70.30 | a | 70.83 | 80.42 | 88.93 | 98.74 | 91.81 | 82.50 | 65.39 | 54.13 | 49.00 | h | 73.86 | a | |||||||||
1973 | 45.42 | 51.39 | 53.74 | 67.60 | 82.66 | b | 90.03 | 96.29 | 92.03 | 85.87 | 75.20 | a | 58.67 | 52.74 | 70.97 | |||||||||||
1974 | 44.84 | 55.96 | a | 62.58 | 69.00 | 81.81 | 92.38 | a | 93.45 | 91.26 | 88.93 | 71.87 | 58.53 | 49.19 | 71.65 | |||||||||||
1975 | 53.87 | 53.79 | 57.77 | 59.57 | 78.65 | 89.50 | b | 94.73 | a | 94.13 | 87.21 | a | 71.00 | 59.93 | 57.19 | 71.44 | ||||||||||
1976 | 55.90 | a | 54.07 | 59.70 | a | 66.20 | 80.74 | 87.00 | 94.12 | e | 88.07 | d | 78.53 | m | 72.54 | c | 66.76 | a | 55.42 | 70.96 | a | |||||
1977 | 51.06 | 61.14 | 59.61 | 73.57 | 69.84 | f | 90.93 | a | 95.61 | c | 90.22 | d | 82.87 | 77.26 | 64.93 | 54.45 | 72.88 | a | ||||||||
1978 | 49.29 | 52.39 | 61.52 | 63.60 | 78.58 | 88.93 | 94.00 | 93.23 | 80.40 | 77.19 | 56.23 | 48.40 | a | 70.31 | ||||||||||||
1979 | 43.74 | 50.71 | 59.32 | 70.27 | 82.57 | a | 92.83 | 96.16 | 90.53 | a | 91.03 | ----- | z | 58.63 | 57.19 | 72.09 | a | |||||||||
1980 | ----- | z | 56.31 | ----- | z | 72.63 | 72.37 | a | 85.90 | 95.45 | 93.13 | 86.10 | i | 75.52 | 62.47 | 60.27 | e | 74.89 | c | |||||||
1981 | 55.00 | a | 57.79 | 58.48 | 72.17 | 79.00 | c | 93.80 | 96.26 | 95.79 | b | 86.73 | 70.35 | 63.10 | 55.40 | a | 73.66 | |||||||||
1982 | 50.79 | b | 55.46 | 57.03 | 66.70 | 78.35 | 84.23 | 91.52 | 91.10 | 81.53 | 69.35 | 54.17 | 50.24 | b | 69.21 | |||||||||||
1983 | 54.40 | a | 53.86 | 57.65 | 61.87 | 79.00 | 87.37 | 91.45 | 88.97 | 87.76 | a | 72.63 | a | 58.73 | 51.32 | 70.42 | ||||||||||
1984 | 55.60 | a | 57.66 | 65.74 | 71.50 | 88.44 | d | 87.60 | 92.53 | a | 90.17 | a | 87.00 | c | 65.93 | c | 56.41 | c | 44.08 | r | 74.42 | a | ||||
1985 | 51.17 | m | 54.11 | a | 61.39 | c | 76.89 | c | 80.17 | m | 95.95 | k | 97.71 | q | 94.92 | e | 79.78 | c | 74.80 | k | 53.96 | e | 57.10 | j | 70.18 | f |
1986 | 58.95 | j | 54.73 | f | 66.67 | g | 67.78 | g | 83.62 | g | 93.62 | d | 93.78 | h | 96.20 | a | 72.00 | m | 67.55 | 58.27 | 44.52 | 72.03 | g | |||
1987 | 43.07 | a | 51.71 | 54.26 | l | 74.67 | 78.55 | b | 91.69 | d | 92.26 | 95.10 | 86.23 | 73.94 | 51.44 | c | 37.93 | c | 70.60 | a | ||||||
1988 | 45.82 | i | 54.14 | 60.16 | 65.50 | b | 78.00 | h | ----- | z | 98.07 | d | 93.17 | a | 85.10 | 81.20 | a | 59.97 | a | 51.35 | 72.07 | c | ||||
1989 | 51.39 | 53.21 | 66.48 | 78.93 | a | 79.97 | a | 90.40 | 98.33 | a | 91.32 | 85.27 | 72.37 | a | 65.76 | a | 56.90 | 74.19 | ||||||||
1990 | 51.29 | 54.32 | 65.26 | 74.90 | a | 78.74 | 91.77 | 96.10 | 92.63 | a | 86.00 | 76.74 | 62.17 | a | 48.07 | c | 73.17 | |||||||||
1991 | 51.16 | 63.04 | 55.10 | a | 70.07 | a | 76.52 | 86.93 | 95.94 | 92.23 | 88.03 | 78.58 | 62.96 | c | 53.30 | a | 72.82 | |||||||||
1992 | 51.52 | 55.38 | 58.68 | 75.76 | a | 84.32 | 88.40 | 93.13 | 95.03 | 88.17 | 76.87 | 58.97 | 46.35 | 72.71 | ||||||||||||
1993 | 46.94 | 50.39 | 64.63 | a | 73.38 | a | 81.23 | a | 87.67 | 93.61 | 93.23 | a | 87.21 | a | 73.90 | 58.62 | a | ----- | z | 73.71 | a | |||||
1994 | 56.29 | 51.26 | a | 67.26 | 72.57 | 81.07 | a | 94.77 | 98.19 | 97.26 | 85.80 | 71.42 | 53.63 | 51.55 | 73.42 | |||||||||||
1995 | 47.29 | 64.92 | b | 59.57 | a | 68.90 | 75.03 | 86.40 | 94.93 | a | 95.29 | 89.45 | a | 76.50 | a | 67.27 | 54.26 | 73.32 | ||||||||
1996 | 55.97 | 58.75 | a | 66.62 | b | 74.85 | d | 82.20 | a | 93.41 | a | 99.17 | a | 97.97 | 85.93 | 72.10 | a | 60.83 | 53.10 | b | 75.08 | |||||
1997 | 53.68 | c | 57.25 | 70.48 | 72.83 | a | 87.87 | 89.75 | b | 95.03 | a | 95.30 | a | 86.73 | 73.48 | b | 60.27 | 49.72 | b | 74.37 | ||||||
1998 | 53.07 | a | 50.07 | 60.17 | a | 65.83 | 70.97 | 85.11 | b | 98.94 | ----- | z | 85.17 | 73.29 | 60.36 | e | 55.77 | 68.98 | a | |||||||
1999 | 57.33 | a | 58.22 | e | 63.24 | b | 64.79 | a | 80.71 | 91.23 | 94.23 | 93.68 | 90.45 | a | 80.19 | 67.07 | 57.06 | 74.85 | ||||||||
2000 | 56.52 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.52 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.30 | 55.27 | 61.54 | 69.87 | 79.75 | 89.40 | 95.26 | 93.21 | 85.94 | 73.19 | 59.78 | 51.91 | 72.60 | |||||||||||||
S.D. | 4.15 | 3.99 | 4.28 | 4.67 | 4.08 | 2.89 | 2.26 | 2.45 | 2.86 | 4.07 | 4.14 | 4.87 | 1.75 | |||||||||||||
SKEW | -0.45 | 0.33 | 0.41 | -0.19 | -0.19 | 0.07 | 0.16 | -0.10 | -0.44 | -0.03 | 0.07 | -0.83 | -0.38 | |||||||||||||
MAX | 57.33 | 64.92 | 70.48 | 78.93 | 88.44 | 94.77 | 99.17 | 97.97 | 91.03 | 81.20 | 67.27 | 60.27 | 75.08 | |||||||||||||
MIN | 43.07 | 46.75 | 53.74 | 59.57 | 70.97 | 84.23 | 91.45 | 88.07 | 79.78 | 65.39 | 51.44 | 37.93 | 69.21 | |||||||||||||
YRS | 28 | 30 | 28 | 30 | 27 | 29 | 27 | 29 | 26 | 28 | 30 | 26 | 16 |