YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.71 | j | 30.37 | 29.16 | 29.76 | j | ||
1974 | ----- | z | 27.79 | 31.03 | a | 33.87 | 36.48 | 44.97 | a | 46.55 | 45.77 | 36.77 | 29.97 | 28.60 | 22.03 | 34.89 | a | |||||||||
1975 | 21.69 | b | 21.48 | a | 25.77 | 28.03 | 35.10 | a | 41.37 | 49.81 | 46.77 | 38.00 | 37.45 | 26.77 | 26.16 | 33.20 | ||||||||||
1976 | 23.10 | a | 23.45 | 23.74 | 30.27 | 35.57 | a | 38.87 | 45.94 | 45.19 | 42.33 | 32.10 | 28.57 | 21.58 | 32.56 | |||||||||||
1977 | 14.23 | 26.11 | a | 26.32 | 30.40 | 35.26 | 46.90 | 45.90 | 50.68 | 41.33 | 34.97 | 30.31 | a | 29.07 | a | 34.29 | ||||||||||
1978 | 27.94 | 30.93 | 33.68 | 34.33 | 38.35 | 43.83 | 48.29 | 45.90 | 42.24 | a | 31.55 | 22.87 | 15.84 | 34.65 | ||||||||||||
1979 | 6.93 | a | 29.26 | a | 29.35 | 34.47 | 39.58 | 42.63 | 47.13 | 47.71 | 41.30 | 35.80 | a | 23.10 | 28.13 | a | 33.78 | |||||||||
1980 | ----- | z | 30.41 | 28.61 | 34.70 | 40.19 | 42.23 | 48.39 | 42.61 | 42.07 | 32.48 | 28.77 | 26.68 | 36.10 | a | |||||||||||
1981 | 27.06 | 26.04 | 26.68 | c | 33.60 | 38.16 | 42.90 | 43.81 | 45.29 | 37.97 | 31.94 | 31.76 | a | 26.45 | 34.30 | |||||||||||
1982 | 23.61 | c | 21.67 | a | 27.20 | a | 29.60 | 35.71 | 47.87 | 47.23 | 47.97 | 39.70 | 35.28 | b | 25.26 | c | 22.70 | d | 33.65 | |||||||
1983 | 29.07 | b | 32.08 | c | 33.04 | d | 31.93 | 39.63 | a | 43.87 | 48.52 | 53.06 | 38.73 | 35.68 | 34.30 | c | 17.12 | e | 36.42 | |||||||
1984 | 18.63 | d | 24.04 | f | 31.36 | c | 34.38 | d | 38.52 | b | 43.77 | 48.13 | 49.42 | 40.47 | 32.80 | a | 31.00 | h | 15.76 | b | 35.32 | b | ||||
1985 | 12.42 | 18.46 | b | ----- | z | 34.62 | a | ----- | z | 42.79 | b | 50.71 | 43.77 | 36.83 | a | 31.90 | a | 17.07 | a | 10.68 | c | 29.92 | b | |||
1986 | 25.03 | b | 29.00 | a | 32.10 | a | 31.70 | 39.93 | a | 47.47 | 45.21 | b | 49.06 | 38.90 | 32.32 | 29.28 | a | 21.32 | 35.11 | |||||||
1987 | 18.79 | c | 26.18 | 30.67 | a | 35.00 | a | 40.00 | 44.80 | 45.90 | 43.71 | 40.00 | 30.32 | 27.97 | 23.22 | d | 33.88 | |||||||||
1988 | 25.04 | h | 27.35 | i | 32.57 | a | 41.32 | b | 40.87 | a | 44.80 | 46.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.28 | g | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.71 | 26.37 | 29.44 | 33.22 | 38.10 | 43.94 | 47.22 | 46.92 | 39.76 | 33.18 | 27.50 | 22.39 | 34.18 | |||||||||||||
S.D. | 6.77 | 4.13 | 3.09 | 3.14 | 2.07 | 2.37 | 1.80 | 2.92 | 1.94 | 2.25 | 4.32 | 5.52 | 1.07 | |||||||||||||
SKEW | -0.65 | -0.43 | -0.30 | 0.74 | -0.30 | -0.13 | 0.13 | 0.49 | -0.13 | 0.41 | -0.87 | -0.59 | 0.63 | |||||||||||||
MAX | 29.07 | 32.08 | 33.68 | 41.32 | 40.87 | 47.87 | 50.71 | 53.06 | 42.33 | 37.45 | 34.30 | 29.16 | 36.42 | |||||||||||||
MIN | 6.93 | 18.46 | 23.74 | 28.03 | 35.10 | 38.87 | 43.81 | 42.61 | 36.77 | 29.97 | 17.07 | 10.68 | 32.56 | |||||||||||||
YRS | 12 | 13 | 14 | 15 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 10 |