YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 50.32 | 60.07 | 67.13 | 64.19 | 60.61 | b | 47.17 | a | 36.33 | 25.27 | a | 51.39 | d | |||||
1963 | 25.86 | x | ----- | z | ----- | z | 38.50 | 51.55 | 56.07 | 68.06 | 64.70 | a | 57.30 | 46.16 | 30.68 | h | 13.93 | a | 49.53 | d | ||||||
1964 | 13.10 | 16.21 | 25.48 | h | 37.23 | 47.06 | 50.10 | 65.58 | 62.37 | a | 53.50 | 41.74 | 26.23 | 19.90 | 39.37 | a | ||||||||||
1965 | 23.87 | 24.04 | a | 29.81 | 37.55 | a | 46.16 | 51.76 | a | 62.13 | 61.94 | 48.97 | 44.03 | 33.34 | a | 22.23 | 40.49 | |||||||||
1966 | 24.81 | 22.79 | 30.52 | b | 35.50 | ----- | z | 52.83 | 60.19 | 57.16 | 46.20 | 38.42 | 31.73 | 24.23 | 38.58 | a | ||||||||||
1967 | 18.29 | 28.46 | 36.32 | 37.93 | 45.42 | 49.10 | 62.89 | c | 61.13 | 55.13 | 41.65 | 32.07 | 10.61 | 39.92 | ||||||||||||
1968 | 9.23 | 32.93 | 34.47 | a | 36.36 | b | 42.50 | c | 59.03 | a | 63.61 | 60.71 | 55.87 | 42.16 | 29.50 | 13.87 | a | 40.02 | ||||||||
1969 | 25.90 | a | 26.54 | 28.71 | c | 38.52 | c | 47.68 | 54.18 | b | 65.19 | 65.84 | 57.40 | 38.90 | 31.70 | 24.61 | 42.10 | |||||||||
1970 | 19.58 | 28.64 | 31.52 | 32.83 | a | 48.19 | 55.80 | 65.97 | 66.23 | 50.59 | a | 39.30 | a | 28.33 | c | 20.16 | 40.59 | |||||||||
1971 | 15.37 | a | 24.63 | a | 29.67 | a | 37.17 | 41.90 | b | 56.07 | 64.77 | 65.23 | a | 50.38 | a | 40.55 | 28.83 | 23.32 | 39.82 | |||||||
1972 | 19.13 | 23.86 | 33.93 | a | 39.37 | 47.41 | b | 57.13 | 63.55 | 64.45 | b | 54.93 | 48.23 | 30.33 | 21.58 | 41.99 | ||||||||||
1973 | 22.32 | 30.43 | 32.39 | 37.62 | a | 49.58 | 56.70 | 65.94 | 63.77 | 52.17 | 38.77 | 30.93 | a | 20.07 | a | 41.72 | ||||||||||
1974 | 24.81 | 21.18 | 37.23 | 35.53 | 52.32 | 59.93 | a | 64.81 | 61.61 | 56.03 | 44.94 | 30.20 | 19.10 | 42.31 | ||||||||||||
1975 | 14.71 | 23.04 | 31.77 | 34.37 | 42.06 | 54.67 | 61.29 | 61.16 | 54.37 | 38.58 | 24.07 | 18.68 | 38.23 | |||||||||||||
1976 | 21.12 | f | 27.34 | 26.48 | 32.10 | 50.68 | 48.90 | 56.27 | a | 56.14 | b | 51.60 | 41.07 | b | 24.27 | 15.17 | g | 41.48 | b | |||||||
1977 | 18.81 | 18.78 | a | 28.65 | 39.30 | 45.10 | 55.97 | 68.61 | 66.83 | a | 57.57 | 42.26 | 29.33 | 26.77 | 41.50 | |||||||||||
1978 | 31.03 | 31.29 | 39.70 | a | 41.50 | b | 50.00 | e | 58.90 | 62.81 | d | 64.43 | a | 56.28 | a | 46.90 | b | 36.77 | 20.87 | 45.04 | ||||||
1979 | 22.55 | b | 23.76 | c | 32.52 | d | 41.46 | f | 44.09 | h | 56.23 | h | 63.13 | a | 62.81 | e | 53.70 | 41.50 | c | 23.93 | 13.81 | 37.52 | c | |||
1980 | 26.00 | d | 27.79 | a | 29.39 | 35.71 | b | 44.77 | a | 49.24 | m | 61.76 | b | 63.39 | c | 53.96 | d | 39.34 | b | 25.38 | a | 22.29 | 39.07 | a | ||
1981 | 20.90 | 19.89 | a | 28.34 | b | 39.90 | a | 48.90 | a | 55.05 | j | 63.19 | 67.33 | g | 55.23 | 42.97 | 32.00 | 25.55 | 37.69 | b | ||||||
1982 | 20.94 | 23.04 | b | 31.19 | d | 36.62 | a | 47.58 | 52.86 | a | 64.78 | d | 64.00 | b | 55.26 | c | 36.16 | 29.56 | e | 23.79 | b | 40.48 | ||||
1983 | 19.42 | 30.04 | a | 36.77 | 36.79 | a | 45.37 | a | 55.40 | e | 62.87 | 65.16 | f | 59.23 | 46.90 | a | 34.93 | 31.41 | b | 41.74 | a | |||||
1984 | 24.50 | e | 18.82 | a | 28.60 | a | 35.31 | a | 52.90 | b | 56.60 | 63.61 | 62.19 | 58.33 | 40.81 | 31.17 | a | 27.47 | a | 41.69 | ||||||
1985 | 25.87 | 26.14 | 34.27 | a | 43.86 | h | 52.77 | 60.39 | b | 68.00 | b | 65.00 | a | 52.57 | b | 45.03 | 33.97 | 25.16 | 44.47 | a | ||||||
1986 | 25.21 | c | 34.89 | 39.48 | b | 44.26 | c | 51.55 | 60.46 | d | 65.03 | b | 66.43 | a | 53.17 | 42.74 | 33.17 | 27.00 | 45.28 | |||||||
1987 | 24.04 | c | 29.93 | 32.63 | a | 42.36 | b | 51.57 | c | 59.08 | e | 62.45 | 63.27 | e | 55.20 | 46.78 | h | 33.30 | 21.13 | 43.18 | a | |||||
1988 | 24.71 | 28.62 | 31.17 | a | 41.14 | a | 48.55 | b | 61.39 | b | 66.13 | a | 65.17 | a | 53.59 | a | 47.19 | 33.20 | 22.59 | d | 43.62 | |||||
1989 | 20.87 | 26.70 | a | 38.48 | b | 45.48 | a | 51.61 | c | 59.13 | 66.55 | 62.33 | a | 55.28 | a | 41.70 | a | 29.21 | b | 18.50 | c | 42.99 | ||||
1990 | 23.31 | b | 26.18 | 36.20 | a | 45.07 | 51.07 | a | 59.17 | a | 67.62 | b | 63.86 | b | 60.10 | 42.39 | 30.17 | 16.00 | 43.43 | |||||||
1991 | 23.39 | 27.61 | 32.94 | 39.59 | a | 45.80 | a | 56.60 | 67.13 | 66.84 | 57.80 | 45.29 | 30.34 | a | 22.68 | 43.00 | ||||||||||
1992 | 22.17 | b | 30.10 | 36.43 | a | 47.25 | r | 51.48 | 58.03 | 64.90 | 64.10 | 57.13 | o | ----- | z | ----- | z | ----- | z | 46.75 | e | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.60 | 25.99 | 32.84 | 38.28 | 48.34 | 56.30 | 64.39 | 63.35 | 54.74 | 42.51 | 30.49 | 21.47 | 41.80 | |||||||||||||
S.D. | 4.56 | 4.45 | 3.64 | 3.41 | 3.27 | 3.48 | 2.62 | 2.53 | 3.24 | 3.18 | 3.40 | 4.70 | 1.83 | |||||||||||||
SKEW | -0.75 | -0.24 | 0.30 | 0.47 | -0.43 | -0.64 | -0.78 | -1.09 | -0.47 | 0.11 | -0.32 | -0.37 | 0.17 | |||||||||||||
MAX | 31.03 | 34.89 | 39.70 | 45.48 | 52.90 | 61.39 | 68.61 | 66.84 | 60.61 | 48.23 | 36.77 | 31.41 | 45.28 | |||||||||||||
MIN | 9.23 | 16.21 | 26.48 | 32.10 | 41.90 | 48.90 | 56.27 | 56.14 | 46.20 | 36.16 | 23.93 | 10.61 | 38.23 | |||||||||||||
YRS | 28 | 29 | 28 | 27 | 29 | 28 | 31 | 29 | 30 | 29 | 29 | 29 | 19 |