YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1968 | ----- | z | ----- | z | 46.26 | 52.27 | 60.19 | 68.00 | 74.68 | 71.55 | 66.73 | 54.19 | 43.34 | a | 33.20 | a | 57.04 | b | ||||||||
1969 | 42.03 | a | 38.59 | a | 39.90 | 50.70 | 59.55 | 65.07 | 77.43 | a | 79.65 | 69.40 | 51.71 | 47.74 | c | 38.70 | a | 55.04 | ||||||||
1970 | 35.38 | b | 42.48 | c | 43.53 | a | 46.03 | 60.65 | 68.93 | 78.12 | e | 77.77 | 66.87 | 51.87 | 43.07 | a | 35.35 | 54.17 | ||||||||
1971 | 32.87 | 37.68 | 42.55 | b | 50.17 | 55.87 | a | 66.19 | i | 77.07 | b | 74.41 | b | 65.15 | c | 51.67 | a | 41.33 | 34.17 | b | 51.18 | a | ||||
1972 | 31.77 | a | 36.78 | b | 48.21 | b | 50.60 | 58.97 | b | 72.38 | a | 78.26 | 75.61 | c | 68.63 | 59.13 | 40.30 | 34.53 | a | 54.60 | ||||||
1973 | 34.61 | 41.50 | 41.39 | c | 48.03 | a | 62.35 | ----- | z | 77.37 | a | 75.83 | a | ----- | z | ----- | z | 42.53 | 34.96 | c | 50.95 | c | ||||
1974 | 35.10 | a | 35.54 | b | 45.93 | b | 50.46 | b | 56.95 | i | 68.92 | f | 74.52 | d | ----- | z | 69.77 | d | 59.50 | c | 42.43 | b | 33.63 | a | 49.65 | c |
1975 | 34.50 | i | ----- | z | 42.27 | e | 44.12 | d | 54.41 | b | 62.67 | c | 75.95 | j | 73.59 | d | 69.09 | h | 53.44 | d | 40.96 | e | 36.71 | 51.02 | d | |
1976 | 36.41 | b | 43.45 | 43.96 | e | 52.96 | b | 68.10 | b | 74.89 | c | 81.14 | i | 77.41 | b | 70.75 | j | 54.87 | h | 44.50 | d | ----- | z | 55.21 | d | |
1977 | 38.79 | b | 39.26 | a | 40.38 | e | 55.75 | f | 55.79 | b | 71.08 | d | 80.93 | b | 78.19 | 68.93 | a | 60.21 | g | 44.09 | g | 41.44 | f | 59.17 | d | |
1978 | 40.77 | e | 43.73 | f | 49.97 | 48.60 | 56.35 | 66.90 | a | 73.04 | h | 71.92 | f | 68.17 | 58.03 | a | 43.77 | d | ----- | z | 54.07 | d | ||||
1979 | 31.88 | n | 34.69 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.63 | d | 39.70 | 36.94 | 42.76 | i | ||
1980 | 42.81 | 45.10 | 44.16 | 50.07 | 55.39 | 62.83 | 72.90 | 71.60 | a | 62.53 | 48.58 | 36.30 | 35.77 | 52.34 | ||||||||||||
1981 | 36.81 | 36.18 | 39.97 | 48.00 | 51.32 | 62.83 | 74.00 | 73.97 | 63.37 | 47.29 | 38.90 | 35.61 | 50.69 | |||||||||||||
1982 | 37.37 | a | 41.82 | 46.13 | a | 48.67 | 58.32 | 59.83 | 70.23 | 71.23 | a | 61.93 | 45.74 | 40.23 | 34.55 | 51.34 | ||||||||||
1983 | 34.16 | 38.36 | 41.48 | 41.73 | 51.97 | 63.87 | 69.71 | 71.58 | 69.87 | 57.71 | 44.67 | 40.13 | 52.10 | |||||||||||||
1984 | 37.97 | 36.79 | 43.42 | 49.31 | a | 61.42 | 65.70 | 76.40 | a | 75.39 | 70.87 | 54.45 | 43.21 | a | 40.26 | 54.60 | ||||||||||
1985 | 37.90 | 38.11 | a | 43.77 | 49.72 | a | 56.35 | 63.20 | 74.03 | 73.06 | 59.97 | 55.30 | a | 44.10 | ----- | z | 54.14 | a | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.98 | 39.40 | 43.72 | 48.84 | 57.94 | 66.30 | 75.40 | 74.72 | 66.58 | 53.35 | 42.18 | 36.04 | 53.11 | |||||||||||||
S.D. | 3.20 | 2.96 | 2.85 | 2.88 | 4.19 | 4.30 | 3.14 | 2.70 | 3.44 | 4.19 | 2.66 | 2.26 | 1.69 | |||||||||||||
SKEW | 0.29 | 0.52 | 0.55 | -1.03 | 0.59 | 0.55 | -0.29 | 0.26 | -0.59 | -0.17 | -0.19 | 0.77 | -0.20 | |||||||||||||
MAX | 42.81 | 45.10 | 49.97 | 52.96 | 68.10 | 74.89 | 80.93 | 79.65 | 70.87 | 59.50 | 47.74 | 40.26 | 55.04 | |||||||||||||
MIN | 31.77 | 35.54 | 39.90 | 41.73 | 51.32 | 59.83 | 69.71 | 71.23 | 59.97 | 45.74 | 36.30 | 33.20 | 50.69 | |||||||||||||
YRS | 15 | 14 | 17 | 16 | 16 | 14 | 14 | 15 | 14 | 15 | 17 | 14 | 8 |