YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 90.07 | b | 78.21 | b | 68.22 | h | 51.26 | c | 36.82 | n | 73.18 | i |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.50 | a | 92.77 | a | 82.93 | b | 72.20 | a | 59.42 | f | 45.18 | c | 77.11 | g |
1963 | 31.08 | g | 52.65 | k | 56.80 | f | 65.67 | r | 82.56 | o | 84.60 | o | 96.08 | f | 88.56 | f | 84.77 | q | 70.92 | r | 57.74 | g | 45.05 | j | ----- | z |
1964 | 42.68 | 46.59 | 52.54 | c | 64.37 | c | 77.21 | c | 83.90 | a | 95.68 | c | 88.50 | e | 82.32 | e | 77.38 | e | 52.54 | d | 44.23 | e | 67.33 | |||
1965 | 45.56 | d | 45.27 | f | 54.68 | c | 62.95 | h | ----- | z | 82.33 | f | 89.66 | b | 89.76 | b | 78.20 | e | 72.96 | d | 59.52 | e | 44.50 | e | 66.85 | d |
1966 | 40.79 | c | 41.62 | d | 60.89 | c | 69.38 | d | 80.39 | c | 88.21 | a | 94.14 | b | 91.56 | d | 82.68 | b | 68.93 | a | 57.54 | b | 42.03 | b | 68.18 | |
1967 | 41.82 | c | 54.28 | c | 64.00 | d | 64.50 | b | 76.92 | e | 82.89 | c | 94.96 | c | 90.93 | c | 82.50 | d | 75.53 | a | 59.90 | 35.69 | b | 68.66 | ||
1968 | 35.97 | a | 53.52 | d | 59.31 | b | 62.81 | c | 75.77 | a | 90.08 | d | 91.48 | b | 85.18 | c | 83.46 | f | 70.64 | c | 52.92 | d | 36.81 | d | 64.95 | a |
1969 | 45.25 | c | 46.00 | 52.42 | 67.39 | b | 80.19 | 85.68 | e | 92.54 | c | 92.74 | d | 84.86 | b | 64.50 | e | 52.74 | c | 44.61 | c | 67.41 | ||||
1970 | 45.20 | a | 53.62 | b | 51.54 | c | 60.00 | d | 79.54 | c | 85.33 | c | 92.56 | d | 92.62 | g | 80.33 | f | 64.11 | c | 54.56 | e | 43.07 | d | 62.95 | b |
1971 | 44.90 | b | 52.22 | a | 60.83 | g | 65.31 | d | 72.43 | h | 87.78 | c | 94.75 | g | 87.18 | t | 79.80 | e | 64.11 | d | 50.85 | c | 36.65 | 60.20 | d | |
1972 | 44.68 | 52.36 | a | 66.00 | c | 68.78 | c | 76.74 | 85.76 | a | 93.74 | 88.67 | a | 80.66 | a | 61.41 | b | 46.21 | b | 36.40 | a | 66.78 | ||||
1973 | 30.56 | o | 40.43 | e | 49.68 | l | 59.27 | d | 74.57 | a | 83.48 | e | ----- | z | 90.19 | 80.68 | e | 71.55 | 56.14 | b | 44.17 | b | 66.72 | c | ||
1974 | 32.60 | a | 39.48 | a | 61.10 | b | 64.19 | c | 79.93 | b | 90.88 | f | 90.22 | h | 90.31 | e | 82.96 | d | 68.81 | d | 51.63 | c | 41.04 | h | 63.45 | c |
1975 | 37.55 | b | 44.77 | b | 51.93 | c | 57.96 | c | 70.62 | e | 83.37 | c | 90.56 | d | 89.50 | c | 82.61 | l | 68.21 | g | 53.76 | a | 42.13 | a | 62.21 | b |
1976 | 39.48 | h | 52.41 | g | 58.12 | o | 65.54 | f | 74.85 | e | 86.55 | a | 92.39 | 88.81 | 78.40 | 66.16 | 56.97 | 44.42 | g | 77.73 | e | |||||
1977 | 36.17 | a | 54.25 | 54.10 | 71.13 | 73.77 | 92.76 | e | 90.12 | o | 91.15 | d | 82.93 | b | 72.15 | e | 56.20 | 50.59 | b | 66.84 | a | |||||
1978 | 42.32 | c | 45.46 | 58.96 | g | 64.52 | e | 71.22 | d | ----- | z | 93.74 | d | 90.75 | c | 80.93 | c | 72.96 | c | 52.83 | 32.74 | 64.75 | b | |||
1979 | 31.39 | 40.70 | a | 53.31 | b | 68.38 | f | 74.32 | f | 86.85 | c | 93.79 | b | 88.00 | 86.81 | c | 73.13 | a | 47.63 | 42.32 | 64.40 | b | ||||
1980 | 43.13 | a | 51.67 | b | 53.63 | a | 65.50 | 71.66 | b | 89.37 | 93.94 | 90.13 | 82.37 | 68.32 | 55.20 | 51.42 | 68.03 | |||||||||
1981 | 49.77 | 52.50 | 53.90 | 69.93 | 73.52 | 90.26 | c | 91.97 | 89.81 | 81.57 | 65.60 | a | 60.04 | e | 47.96 | c | 68.90 | |||||||||
1982 | 44.03 | a | 42.11 | 56.61 | 65.70 | 72.90 | 83.33 | 88.61 | 85.58 | 78.80 | 64.93 | a | 48.18 | b | 40.37 | a | 64.26 | |||||||||
1983 | 40.77 | 47.86 | 52.39 | 58.00 | 72.34 | b | 82.04 | b | 87.19 | e | 87.55 | b | 83.07 | 67.69 | b | 54.77 | 43.50 | a | 64.76 | |||||||
1984 | 40.29 | 48.83 | 57.93 | a | 65.00 | 84.53 | a | 86.15 | c | 92.03 | a | 89.44 | f | 84.69 | d | 64.36 | f | 54.10 | a | 43.00 | 65.66 | b | ||||
1985 | 39.63 | a | 45.35 | b | 57.04 | c | 69.93 | c | 77.93 | b | 91.73 | 93.74 | 93.23 | a | 78.32 | b | 68.45 | 53.03 | 46.58 | 67.91 | ||||||
1986 | 49.77 | 54.56 | a | 63.81 | 67.93 | 77.83 | b | 88.93 | 89.84 | 91.45 | 77.23 | 66.18 | c | 52.97 | 43.74 | 68.69 | ||||||||||
1987 | 40.59 | b | 46.79 | 54.65 | 70.52 | a | 75.29 | 90.11 | b | 91.00 | a | 88.06 | 82.66 | a | 71.62 | b | 51.03 | 39.26 | 66.80 | |||||||
1988 | 37.16 | 50.33 | b | 59.07 | d | 67.77 | 76.89 | c | 91.71 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.48 | 55.79 | f | |||
1989 | 36.94 | 46.54 | 65.45 | 75.59 | h | 82.84 | f | 87.90 | 95.13 | a | 88.33 | a | 84.14 | a | 73.96 | f | 59.13 | g | 47.00 | d | 68.93 | d | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.21 | 47.99 | 57.10 | 65.45 | 76.12 | 86.93 | 92.33 | 89.71 | 81.57 | 69.10 | 53.70 | 42.70 | 67.31 | |||||||||||||
S.D. | 4.73 | 4.90 | 4.69 | 3.97 | 3.50 | 3.04 | 2.18 | 2.04 | 2.48 | 4.10 | 3.58 | 4.55 | 1.48 | |||||||||||||
SKEW | -0.19 | -0.21 | 0.59 | -0.49 | 0.40 | 0.14 | -0.61 | -0.37 | -0.03 | 0.09 | -0.06 | -0.26 | -1.01 | |||||||||||||
MAX | 49.77 | 54.56 | 66.00 | 71.13 | 84.53 | 92.76 | 95.68 | 93.23 | 86.81 | 77.38 | 60.04 | 51.42 | 68.90 | |||||||||||||
MIN | 31.39 | 39.48 | 51.54 | 57.96 | 70.62 | 82.04 | 87.19 | 85.18 | 77.23 | 61.41 | 46.21 | 32.74 | 64.26 | |||||||||||||
YRS | 24 | 24 | 22 | 22 | 22 | 22 | 22 | 24 | 24 | 23 | 25 | 25 | 12 |