YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1968 | ----- | z | ----- | z | 50.90 | b | 60.92 | d | 70.83 | d | 80.66 | a | 79.10 | 78.47 | a | 71.63 | 64.15 | 48.97 | a | 44.95 | a | 65.06 | b | |||
1969 | 47.45 | b | 48.86 | 44.92 | 64.55 | 71.71 | 78.70 | 84.45 | 82.95 | a | 73.95 | a | 61.55 | c | 50.87 | 45.90 | 62.99 | |||||||||
1970 | 40.52 | 47.06 | b | 48.44 | 62.27 | 70.08 | 77.36 | a | 80.76 | 80.71 | 72.57 | 57.58 | 52.08 | 49.15 | a | 61.55 | ||||||||||
1971 | 45.60 | 45.16 | 54.77 | 61.70 | 70.32 | 79.21 | a | 81.10 | 73.97 | 71.00 | b | 62.47 | a | 52.92 | 44.98 | 61.93 | ||||||||||
1972 | 43.98 | b | 46.93 | a | 59.10 | 66.55 | 69.74 | 78.91 | c | 79.24 | f | 76.29 | 72.52 | d | 61.20 | a | 44.47 | 41.77 | 60.13 | a | ||||||
1973 | 37.29 | 41.35 | a | 51.45 | 57.43 | a | 68.00 | 76.33 | 78.81 | 79.32 | 72.29 | d | 64.76 | 55.20 | 45.11 | 60.61 | ||||||||||
1974 | 42.80 | a | 46.61 | 59.14 | b | 62.80 | 73.68 | 79.23 | 81.83 | g | 77.44 | f | 65.16 | a | 61.48 | 50.63 | 42.37 | 58.39 | b | |||||||
1975 | 43.44 | g | 45.96 | a | 51.92 | 59.45 | 67.92 | a | 78.22 | 76.03 | a | 78.37 | 68.80 | 63.55 | 52.23 | 44.13 | 62.42 | a | ||||||||
1976 | 41.72 | b | 52.57 | 54.75 | a | 62.88 | a | 65.97 | b | 78.22 | 76.75 | g | 78.60 | 70.43 | 55.88 | a | 43.85 | 41.32 | 58.74 | a | ||||||
1977 | 37.24 | 47.66 | 51.21 | 62.07 | 72.48 | 80.72 | 82.19 | 83.48 | 78.75 | 64.42 | 53.35 | 48.05 | a | 63.47 | ||||||||||||
1978 | 38.35 | 41.75 | 54.00 | 66.98 | 71.23 | a | 80.48 | d | 83.26 | h | 79.71 | c | 70.22 | e | 63.33 | g | 51.31 | d | 41.15 | 59.52 | b | |||||
1979 | 35.73 | a | 44.07 | a | 52.50 | b | 62.77 | 68.68 | 75.03 | 80.52 | g | 76.81 | 72.32 | 65.21 | 46.55 | a | 43.77 | c | 58.49 | a | ||||||
1980 | 43.40 | a | 45.19 | 52.37 | 59.12 | b | 69.06 | 83.77 | b | 85.80 | i | 79.55 | a | 72.85 | ----- | z | 47.68 | 45.69 | 59.87 | b | ||||||
1981 | 43.15 | 47.61 | 52.89 | 63.22 | a | 70.00 | 79.82 | 82.35 | 76.94 | 71.86 | a | 63.16 | 56.22 | 47.79 | 62.92 | |||||||||||
1982 | 43.19 | b | 44.88 | b | 56.73 | a | 62.86 | b | 69.27 | 78.88 | e | 82.03 | a | 81.82 | c | 76.05 | a | 61.41 | d | 49.90 | d | 41.18 | f | 64.28 | a | |
1983 | 40.34 | c | 45.81 | b | 54.40 | a | 56.12 | a | 68.47 | 75.72 | c | 82.48 | j | 82.11 | h | 75.28 | j | 63.71 | j | 53.15 | f | 38.87 | e | 54.25 | e | |
1984 | 39.40 | a | 46.94 | c | 52.60 | a | 62.00 | a | 72.77 | a | 77.21 | a | 79.81 | 79.00 | b | 70.94 | d | 59.10 | 51.68 | b | 43.98 | d | 61.29 | |||
1985 | 38.32 | c | 42.90 | h | 55.65 | d | 65.31 | d | 72.39 | 75.67 | 80.30 | d | 81.71 | 71.17 | 61.15 | 54.93 | c | 42.37 | a | 63.54 | a | |||||
1986 | 45.68 | 48.54 | 56.71 | 66.30 | 70.62 | a | 75.23 | 79.52 | 79.00 | k | ----- | z | 62.18 | a | 48.95 | 42.07 | c | 59.58 | b | |||||||
1987 | 42.18 | a | 47.54 | 49.39 | 58.63 | 68.48 | 76.20 | 80.15 | 78.95 | a | 70.62 | 65.03 | 50.81 | a | 42.41 | b | 60.87 | |||||||||
1988 | 39.87 | a | 46.16 | 53.40 | a | 60.68 | 69.60 | 78.07 | 79.45 | a | 79.65 | d | 72.75 | 65.43 | a | 54.97 | 41.78 | b | 61.82 | |||||||
1989 | 43.89 | 44.17 | b | 56.21 | 67.03 | a | 74.82 | 78.40 | 81.83 | b | 79.66 | 70.88 | a | 64.10 | a | 52.24 | a | 36.69 | b | 62.49 | ||||||
1990 | 44.52 | 49.02 | 53.74 | b | 62.97 | 71.88 | b | 86.07 | b | 79.69 | 76.21 | 73.00 | 62.22 | a | 53.90 | a | 42.46 | c | 62.97 | |||||||
1991 | 39.11 | 48.56 | c | 54.77 | a | 63.13 | 73.42 | 79.52 | 77.56 | 77.94 | 68.17 | a | 63.68 | a | 46.83 | 43.71 | 61.37 | |||||||||
1992 | 40.35 | a | 48.22 | 55.68 | 64.75 | b | 67.30 | a | 76.42 | 80.11 | d | 77.89 | c | 74.02 | 65.19 | d | 47.13 | c | 43.73 | e | 61.73 | |||||
1993 | 44.62 | c | 46.36 | c | 53.84 | b | 62.56 | c | 70.18 | c | 79.66 | e | 82.66 | f | 80.85 | 72.72 | 61.45 | a | 48.32 | 44.70 | d | 60.48 | a | |||
1994 | 44.33 | a | 45.96 | e | 56.36 | c | 62.66 | b | 72.52 | b | 83.59 | a | 82.74 | b | 81.93 | h | 73.18 | 63.44 | 53.12 | a | 48.30 | f | 63.79 | b | ||
1995 | 43.64 | f | 51.08 | b | 54.21 | b | 62.02 | 71.50 | b | 78.93 | 84.12 | c | 82.61 | 72.29 | a | 65.16 | 54.43 | b | 46.28 | d | 65.69 | a | ||||
1996 | 43.67 | e | 50.52 | b | 51.82 | a | 63.48 | 80.21 | 82.50 | a | 82.65 | 78.97 | 71.30 | 62.87 | e | 52.40 | 47.08 | a | 63.96 | |||||||
1997 | 40.87 | a | 43.70 | 56.56 | 58.66 | b | 70.18 | 78.82 | 82.37 | a | 81.44 | 76.45 | 62.87 | 49.72 | 39.91 | b | 61.79 | |||||||||
1998 | 46.68 | a | 46.77 | 52.76 | 60.02 | 76.61 | 83.62 | 84.94 | 80.12 | a | 78.32 | 66.35 | 56.42 | 44.57 | a | 64.76 | ||||||||||
1999 | 48.35 | 53.14 | 56.57 | c | 62.93 | 70.58 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.25 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.16 | 46.94 | 53.74 | 62.34 | 70.97 | 79.07 | 80.96 | 79.33 | 72.28 | 62.75 | 51.07 | 43.68 | 62.28 | |||||||||||||
S.D. | 3.23 | 2.73 | 2.97 | 2.67 | 2.86 | 2.70 | 2.18 | 2.23 | 2.78 | 2.40 | 3.33 | 2.77 | 1.15 | |||||||||||||
SKEW | -0.08 | 0.25 | -0.66 | -0.24 | 1.15 | 0.71 | -0.13 | -0.18 | 0.21 | -1.06 | -0.39 | -0.28 | 0.57 | |||||||||||||
MAX | 48.35 | 53.14 | 59.14 | 67.03 | 80.21 | 86.07 | 84.94 | 83.48 | 78.75 | 66.35 | 56.42 | 49.15 | 64.76 | |||||||||||||
MIN | 35.73 | 41.35 | 44.92 | 56.12 | 65.97 | 75.03 | 76.03 | 73.97 | 65.16 | 55.88 | 43.85 | 36.69 | 60.61 | |||||||||||||
YRS | 29 | 30 | 32 | 32 | 31 | 31 | 23 | 27 | 29 | 28 | 30 | 29 | 16 |