YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.54 | d | 66.06 | f | 55.16 | i | 42.69 | c | 28.16 | o | 60.11 | j |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.45 | s | 60.38 | a | 49.73 | f | 35.52 | c | 47.95 | j |
1963 | 21.42 | g | 42.41 | k | 45.54 | g | 51.67 | r | 69.72 | o | 71.40 | o | 84.02 | f | 76.94 | f | 72.96 | q | 59.27 | r | 46.91 | g | 34.29 | j | ----- | z |
1964 | 32.45 | 35.24 | 41.77 | c | 52.93 | c | 65.22 | d | 68.97 | a | 79.30 | d | 77.56 | e | 70.32 | e | 64.62 | e | 42.37 | d | 36.75 | e | 55.62 | |||
1965 | 36.00 | d | 35.64 | f | 42.56 | d | 52.32 | h | ----- | z | 70.30 | g | 77.93 | b | 77.09 | c | 68.36 | e | 60.83 | d | 51.08 | e | 35.96 | e | 56.23 | d |
1966 | 31.60 | e | 32.90 | d | 48.43 | c | 56.46 | e | 68.14 | c | 75.88 | a | 83.36 | b | 81.33 | e | 70.86 | b | 57.65 | a | 47.41 | b | 34.45 | b | 57.37 | |
1967 | 31.89 | c | 41.62 | c | 51.46 | d | 52.02 | b | 64.19 | e | 71.13 | c | 81.79 | c | 78.54 | c | 70.12 | e | 61.70 | a | 48.93 | 26.34 | b | 56.64 | ||
1968 | 26.58 | a | 43.52 | d | 47.60 | b | 51.22 | c | 62.92 | a | 76.02 | e | 78.77 | c | 73.18 | c | 70.10 | f | 59.30 | d | 46.24 | m | 27.50 | y | 57.68 | c |
1969 | 36.84 | c | 37.57 | 42.19 | 54.75 | b | 67.37 | 71.34 | e | 80.75 | c | 80.19 | e | 72.54 | b | 52.92 | e | 42.08 | d | 36.07 | c | 56.22 | ||||
1970 | 35.03 | a | 43.19 | b | 41.67 | d | 47.15 | d | 66.59 | c | 72.91 | c | 79.72 | d | 80.33 | h | 68.24 | g | 52.46 | c | 43.28 | e | 35.30 | d | 51.73 | b |
1971 | 35.14 | c | 40.52 | b | 45.70 | h | 53.06 | d | 59.95 | i | 76.67 | c | 82.94 | g | 77.32 | t | 68.38 | e | 53.72 | d | 42.19 | d | 30.96 | e | 50.08 | d |
1972 | 34.47 | 40.62 | a | 53.13 | d | 56.94 | c | 63.98 | 74.22 | a | 81.15 | a | 77.27 | a | 69.71 | a | 53.59 | c | 38.62 | b | 28.88 | b | 56.05 | |||
1973 | 22.87 | p | 33.28 | e | 40.97 | l | 49.36 | e | 62.98 | b | 71.44 | e | ----- | z | 78.26 | 68.68 | e | 59.42 | 46.82 | b | 35.31 | b | 56.17 | c | ||
1974 | 26.05 | a | 30.96 | a | 51.14 | b | 52.90 | d | 67.88 | b | 77.54 | f | 78.39 | h | 78.23 | e | 70.94 | d | 59.02 | e | 43.02 | c | 33.28 | h | 53.35 | c |
1975 | 28.88 | c | 36.02 | c | 42.55 | c | 47.90 | d | 59.25 | g | 71.43 | c | 78.04 | d | 77.43 | c | 70.53 | l | 54.80 | h | 43.23 | b | 33.55 | b | 51.00 | c |
1976 | 29.60 | j | 42.38 | h | 47.28 | o | 54.31 | f | 64.04 | e | 73.02 | b | 79.85 | a | 76.10 | 67.75 | 53.85 | 44.18 | 34.52 | g | 65.54 | e | ||||
1977 | 27.52 | a | 41.88 | 42.55 | a | 57.18 | 60.82 | 78.48 | e | 77.97 | o | 78.96 | d | 71.71 | b | 60.35 | e | 46.02 | 42.14 | c | 55.24 | a | ||||
1978 | 35.59 | c | 37.82 | 49.90 | g | 54.40 | e | 60.35 | d | ----- | z | 81.28 | d | 78.61 | c | 69.65 | c | 61.59 | c | 45.28 | a | 25.68 | 55.02 | b | ||
1979 | 25.27 | 32.17 | b | 43.79 | b | 56.38 | f | 62.50 | g | 74.04 | c | 81.40 | b | 76.79 | 74.44 | c | 62.00 | a | 39.10 | 33.89 | 54.29 | b | ||||
1980 | 36.58 | a | 41.76 | b | 43.08 | a | 54.00 | 60.38 | b | 76.48 | 81.47 | 79.00 | 70.71 | a | 56.71 | 45.23 | 42.08 | 57.29 | ||||||||
1981 | 39.21 | 40.79 | 44.65 | 58.50 | 62.65 | 77.89 | c | 80.08 | 77.61 | 70.32 | 55.67 | a | 49.56 | e | 38.62 | c | 57.96 | |||||||||
1982 | 34.83 | a | 34.05 | 46.39 | 53.95 | a | 62.13 | 71.55 | a | 77.32 | 74.44 | 67.32 | 51.78 | a | 39.71 | b | 32.82 | a | 53.86 | |||||||
1983 | 32.19 | 38.93 | 43.35 | 46.43 | 59.97 | b | 69.11 | b | 74.58 | e | 75.10 | b | 69.80 | 56.26 | b | 45.82 | 36.58 | a | 54.01 | |||||||
1984 | 31.68 | 38.29 | 46.57 | a | 52.62 | 71.37 | a | 73.43 | c | 79.53 | a | 76.92 | f | 71.40 | d | 52.84 | f | 44.67 | a | 35.57 | a | 54.51 | b | |||
1985 | 32.22 | a | 35.81 | b | 46.66 | c | 57.63 | c | 66.43 | b | 78.33 | 81.58 | 80.63 | a | 66.39 | b | 58.15 | a | 44.37 | 37.34 | 57.13 | |||||
1986 | 39.90 | 44.67 | a | 52.50 | 56.42 | 65.05 | b | 77.15 | 78.56 | 79.42 | 66.67 | 55.00 | c | 44.72 | 36.15 | 58.02 | ||||||||||
1987 | 32.43 | c | 38.75 | 44.29 | 58.05 | a | 64.34 | 77.09 | b | 77.88 | a | 76.27 | 70.57 | a | 60.66 | b | 42.78 | 31.35 | 56.21 | |||||||
1988 | 29.00 | 39.89 | b | 46.70 | d | 55.45 | 68.23 | c | 73.57 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.68 | 45.66 | f | |||
1989 | 28.48 | a | 37.59 | 53.73 | 62.98 | h | 70.12 | f | 75.27 | 81.47 | a | 76.26 | b | 71.59 | b | 61.86 | f | 46.80 | g | 36.28 | d | 57.58 | d | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.49 | 38.24 | 46.22 | 53.61 | 64.53 | 74.17 | 79.80 | 77.64 | 69.92 | 57.72 | 44.30 | 34.68 | 56.36 | |||||||||||||
S.D. | 4.05 | 3.80 | 3.96 | 3.52 | 3.05 | 2.94 | 1.99 | 1.93 | 1.95 | 3.60 | 3.10 | 3.99 | 1.36 | |||||||||||||
SKEW | -0.09 | -0.24 | 0.63 | -0.57 | 0.32 | -0.17 | -0.65 | -0.27 | 0.08 | -0.06 | 0.23 | -0.47 | -0.70 | |||||||||||||
MAX | 39.90 | 44.67 | 53.73 | 58.50 | 71.37 | 78.48 | 83.36 | 81.33 | 74.44 | 64.62 | 51.08 | 42.14 | 58.02 | |||||||||||||
MIN | 25.27 | 30.96 | 41.67 | 46.43 | 59.97 | 68.97 | 74.58 | 73.18 | 66.39 | 51.78 | 38.63 | 25.68 | 53.86 | |||||||||||||
YRS | 24 | 24 | 22 | 22 | 21 | 22 | 21 | 23 | 22 | 23 | 24 | 24 | 12 |