YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.44 | u | 16.83 | b | 16.83 | k |
1962 | 5.60 | a | 17.37 | a | 21.52 | 28.55 | a | 32.63 | a | 37.77 | 41.35 | 40.27 | a | 35.23 | 29.06 | ----- | z | 12.85 | r | 28.94 | b | |||||
1963 | 7.61 | 29.64 | 25.29 | 27.76 | a | 37.31 | e | 39.10 | a | ----- | z | 42.92 | f | 40.59 | c | 28.70 | h | 25.29 | i | 17.00 | 28.04 | d | ||||
1964 | 11.84 | 8.36 | a | 16.14 | c | 22.35 | d | 29.39 | 41.07 | 43.57 | a | 40.48 | 32.07 | b | 26.87 | 23.52 | g | 20.42 | 26.60 | a | ||||||
1965 | 15.54 | g | 23.00 | b | 21.57 | c | 31.13 | 30.07 | b | 40.20 | 43.10 | 42.07 | a | 30.81 | d | 28.16 | 26.55 | a | 13.85 | e | 30.05 | a | ||||
1966 | 14.30 | d | 15.39 | 21.89 | m | 27.60 | 34.81 | 41.22 | c | 43.10 | 43.71 | 40.93 | a | 27.68 | 27.90 | 21.10 | 30.70 | a | ||||||||
1967 | 21.59 | b | 22.41 | a | 23.45 | 24.20 | 32.17 | a | 41.14 | a | 45.74 | 47.13 | 39.86 | a | 27.68 | 23.64 | b | 14.42 | 30.29 | |||||||
1968 | 15.67 | a | 26.08 | c | 21.70 | a | 22.10 | a | 32.10 | b | 40.00 | a | ----- | z | 45.61 | 36.79 | a | 28.67 | a | 27.93 | a | 17.50 | a | 28.56 | a | |
1969 | 16.35 | 13.50 | 17.80 | a | 30.93 | a | 37.57 | a | 44.21 | a | 43.54 | c | 42.10 | b | 39.10 | 27.23 | a | 19.77 | 19.59 | b | 29.31 | |||||
1970 | 20.97 | 23.38 | b | 23.07 | a | 21.97 | a | 32.47 | a | 45.00 | 46.17 | b | 42.76 | b | 34.38 | i | 25.30 | k | 28.24 | a | 12.77 | 29.68 | b | |||
1971 | 18.43 | a | 20.08 | c | 21.94 | 27.31 | d | 36.63 | d | 40.55 | a | 46.32 | 47.00 | 30.61 | b | 26.26 | 24.07 | a | 13.13 | 29.36 | ||||||
1972 | 10.36 | c | 20.07 | a | 27.67 | a | 27.11 | b | 32.80 | a | 41.10 | a | 45.72 | b | 45.66 | b | 31.32 | b | 28.43 | a | 25.30 | c | 10.13 | 28.81 | ||
1973 | 17.45 | 25.39 | 25.37 | a | 28.30 | c | 36.48 | d | 39.97 | a | 45.90 | b | 44.52 | 39.50 | f | 29.47 | a | 25.45 | a | 24.26 | 31.14 | a | ||||
1974 | 14.90 | b | 21.86 | 26.74 | 30.47 | 33.77 | 41.23 | 43.84 | 42.61 | 35.00 | 24.19 | 20.50 | 17.29 | 29.37 | ||||||||||||
1975 | 11.74 | 16.89 | 23.52 | 24.90 | a | 32.77 | a | 38.07 | 50.87 | 40.39 | 35.90 | a | 31.84 | 21.87 | 18.87 | a | 28.97 | |||||||||
1976 | 15.17 | a | 18.79 | 23.06 | 30.34 | a | 35.48 | 38.48 | c | 46.73 | a | 45.03 | 39.97 | 27.27 | a | 21.89 | c | 12.87 | a | 29.59 | ||||||
1977 | 4.31 | b | 20.36 | 22.68 | 28.70 | 33.31 | b | 43.62 | a | 44.40 | a | 47.07 | b | 38.82 | b | 29.97 | 24.55 | a | 20.00 | 29.82 | ||||||
1978 | 20.33 | a | 23.04 | 30.45 | 32.87 | 34.19 | 40.34 | a | 47.52 | b | 44.57 | a | 35.93 | a | 26.27 | a | 15.63 | 11.27 | a | 30.20 | ||||||
1979 | 2.26 | 21.93 | 26.07 | a | 30.64 | b | 36.11 | c | 39.66 | a | 43.53 | a | 47.42 | 38.69 | a | 36.00 | a | 17.00 | a | 20.26 | 29.96 | |||||
1980 | 17.10 | 28.14 | 25.10 | 32.00 | a | 39.84 | 39.89 | b | 47.23 | a | 40.70 | d | 38.90 | 28.84 | 25.20 | 19.45 | 31.87 | |||||||||
1981 | 21.97 | a | 15.61 | 25.60 | a | 32.52 | a | 36.33 | d | 39.43 | 42.83 | b | 43.87 | 36.40 | 29.20 | a | 26.67 | 21.79 | c | 31.02 | ||||||
1982 | 9.45 | 18.11 | 25.35 | ----- | z | 26.37 | d | 44.24 | a | 45.48 | 44.83 | a | 36.54 | d | 30.17 | a | 18.79 | b | 14.69 | b | 28.55 | a | ||||
1983 | 21.57 | a | 26.46 | 31.00 | c | 28.03 | 35.23 | 38.40 | 44.37 | a | 46.31 | b | 35.40 | 29.77 | a | 27.53 | 12.52 | 31.38 | ||||||||
1984 | 8.06 | 15.03 | 25.97 | 29.31 | d | 37.00 | b | 40.63 | 47.29 | 44.97 | 36.48 | a | 28.70 | a | 26.23 | 9.29 | 29.08 | |||||||||
1985 | 8.71 | 10.00 | a | 20.47 | a | 30.34 | a | 36.57 | a | 41.21 | b | 49.77 | 40.58 | 32.52 | a | 25.10 | a | 11.93 | 1.57 | c | 25.73 | |||||
1986 | 18.87 | 24.92 | b | 29.20 | a | 28.37 | 35.90 | 44.37 | 41.60 | a | 47.80 | a | 35.23 | 28.79 | c | 26.61 | b | 18.61 | 31.69 | |||||||
1987 | 12.19 | 22.40 | c | 29.07 | d | 31.56 | c | 37.59 | b | 42.97 | 43.68 | 41.23 | 37.35 | d | 28.55 | 23.37 | c | 16.36 | c | 30.53 | ||||||
1988 | 12.65 | 19.74 | b | 23.45 | 31.63 | c | 33.13 | 42.03 | a | 45.97 | a | 42.61 | 35.07 | a | 32.07 | a | 23.79 | a | 13.00 | 29.59 | ||||||
1989 | 9.97 | 8.96 | b | 28.35 | 32.33 | 34.84 | 43.00 | a | 44.19 | 44.43 | a | 34.87 | 28.74 | 19.24 | a | 15.23 | a | 28.68 | ||||||||
1990 | 20.82 | c | 12.92 | b | 23.21 | c | 32.11 | b | 34.72 | b | 45.55 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.22 | f |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.94 | 19.65 | 24.46 | 28.76 | 34.40 | 41.19 | 45.15 | 43.92 | 36.17 | 28.65 | 23.19 | 15.86 | 29.75 | |||||||||||||
S.D. | 5.64 | 5.58 | 3.52 | 3.22 | 2.83 | 2.14 | 2.28 | 2.41 | 2.98 | 2.33 | 4.23 | 4.70 | 1.36 | |||||||||||||
SKEW | -0.26 | -0.35 | -0.19 | -0.81 | -0.73 | 0.43 | 0.61 | -0.05 | -0.28 | 0.98 | -0.95 | -0.83 | -0.99 | |||||||||||||
MAX | 21.97 | 29.64 | 31.00 | 32.87 | 39.84 | 45.55 | 50.87 | 47.80 | 40.93 | 36.00 | 28.24 | 24.26 | 31.87 | |||||||||||||
MIN | 2.26 | 8.36 | 16.14 | 21.97 | 26.37 | 37.77 | 41.35 | 40.27 | 30.61 | 24.19 | 11.93 | 1.57 | 25.73 | |||||||||||||
YRS | 28 | 29 | 28 | 28 | 29 | 29 | 26 | 27 | 26 | 26 | 25 | 28 | 19 |