YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.68 | l | 28.02 | e | 23.58 | e | 25.80 | j |
1956 | 22.82 | 25.78 | 34.98 | a | 46.70 | 52.74 | b | 55.52 | b | 70.75 | k | 63.63 | 57.66 | b | 42.58 | 29.88 | b | 26.00 | 41.66 | a | ||||||
1957 | 12.34 | 26.79 | 33.64 | b | 40.98 | 50.73 | 54.20 | 58.32 | 57.28 | b | 54.72 | 41.90 | 28.55 | a | 28.61 | 40.67 | ||||||||||
1958 | 25.48 | 34.11 | 30.68 | a | 39.82 | 53.63 | 57.03 | 61.67 | a | 62.52 | a | 51.07 | a | 45.16 | b | 32.29 | a | 31.53 | 43.75 | |||||||
1959 | 26.74 | 28.91 | 33.74 | 41.63 | 43.85 | a | 54.17 | a | 59.27 | a | 56.26 | 50.59 | a | 43.34 | 31.17 | 25.06 | 41.23 | |||||||||
1960 | 18.40 | 23.52 | 33.74 | 42.62 | a | 45.40 | 53.65 | 63.75 | a | 56.40 | 54.35 | 43.47 | b | 32.63 | 24.63 | 41.05 | ||||||||||
1961 | 26.65 | a | 34.54 | 35.18 | 39.98 | 46.97 | 58.07 | 61.42 | a | 65.50 | 46.52 | 40.34 | 28.63 | 24.27 | 42.34 | |||||||||||
1962 | 18.53 | 25.75 | 30.53 | 43.30 | 45.02 | 51.22 | e | 56.56 | 56.13 | a | 53.78 | a | 43.60 | 34.95 | 28.10 | a | 40.62 | |||||||||
1963 | 19.06 | 37.14 | 35.05 | 39.07 | 46.67 | j | 53.77 | 57.60 | 60.56 | 58.53 | 45.90 | 34.72 | a | 24.23 | a | 42.33 | a | |||||||||
1964 | ----- | z | ----- | z | 29.85 | 37.33 | 45.22 | b | 52.57 | a | 59.56 | 56.81 | 49.71 | b | 44.38 | a | 31.52 | 23.76 | d | 43.07 | b | |||||
1965 | 26.91 | b | 29.50 | 30.60 | 42.79 | b | 44.58 | 52.52 | a | 59.44 | 59.58 | 47.13 | 46.47 | 35.34 | a | ----- | z | 43.17 | a | |||||||
1966 | 26.85 | 25.57 | a | 32.29 | 40.42 | 49.22 | b | 51.90 | 59.29 | 59.65 | 56.78 | 42.43 | c | 35.60 | a | 28.29 | 42.36 | |||||||||
1967 | 29.83 | d | 31.25 | 32.74 | 36.52 | a | 46.29 | b | 54.95 | 61.18 | 64.27 | 58.57 | 42.90 | b | 33.65 | 24.68 | c | 43.07 | ||||||||
1968 | 22.63 | a | 34.34 | 37.98 | 38.12 | 46.50 | a | 53.65 | 61.24 | 57.52 | 52.36 | a | 40.93 | a | 32.47 | a | 23.65 | 41.78 | ||||||||
1969 | 21.39 | 25.29 | 30.71 | 41.30 | c | 50.24 | 55.95 | 57.89 | 58.48 | 54.08 | 38.93 | b | 33.07 | 28.34 | b | 41.31 | ||||||||||
1970 | 25.19 | b | 32.55 | 32.53 | b | 35.83 | 47.02 | 57.17 | 62.03 | 60.85 | 46.91 | a | 39.94 | 33.50 | 20.33 | b | 41.15 | |||||||||
1971 | 27.18 | 29.56 | a | 29.16 | 39.21 | b | 48.34 | 51.79 | b | 60.28 | b | 64.21 | 47.48 | b | 38.78 | a | 31.53 | 22.77 | 40.86 | |||||||
1972 | 22.18 | a | 28.00 | 36.48 | 36.98 | b | 48.92 | 54.26 | a | 59.75 | a | 61.76 | 48.33 | 42.35 | 33.47 | ----- | z | 42.95 | a | |||||||
1973 | 20.93 | a | 30.52 | 35.23 | a | 39.92 | 48.81 | 53.88 | 60.82 | 59.85 | 52.79 | b | 42.42 | a | ----- | z | ----- | z | 44.52 | b | ||||||
1974 | 19.65 | a | 30.61 | a | 33.45 | 41.13 | 45.18 | a | 57.87 | 59.75 | a | 59.62 | a | 54.12 | 43.00 | 34.98 | a | 25.44 | 42.07 | |||||||
1975 | 24.06 | 24.54 | 30.68 | a | 34.65 | 46.70 | a | 52.37 | 63.97 | 57.34 | 53.24 | a | 43.24 | 30.50 | 29.25 | a | 40.88 | |||||||||
1976 | 24.52 | 26.11 | a | 28.69 | 38.27 | 48.24 | 51.60 | 61.15 | 57.71 | 55.17 | 42.76 | 36.15 | 25.30 | a | 41.30 | |||||||||||
1977 | 18.56 | 31.50 | a | 31.08 | 43.82 | 44.58 | 58.25 | 59.73 | 62.06 | 50.71 | b | 43.52 | a | ----- | z | ----- | z | 44.38 | b | |||||||
1978 | 27.78 | a | ----- | z | ----- | z | ----- | z | ----- | z | 53.84 | a | 60.27 | 57.92 | a | 51.97 | 43.98 | ----- | z | ----- | z | 49.29 | f | |||
1979 | 11.66 | 28.71 | ----- | z | ----- | z | ----- | z | 54.41 | c | 60.94 | 61.65 | 56.15 | 46.30 | a | 28.23 | d | 29.95 | 42.00 | c | ||||||
1980 | ----- | z | ----- | z | 33.65 | 44.40 | 48.69 | 52.83 | 60.48 | 55.63 | a | 54.45 | 43.39 | 34.56 | e | ----- | z | 47.57 | c | |||||||
1981 | 29.94 | 30.25 | b | 37.34 | 42.40 | 46.44 | 52.53 | 57.07 | a | 63.00 | 53.28 | a | 41.73 | 35.30 | 28.72 | a | 43.16 | |||||||||
1982 | 24.07 | a | 23.52 | a | 33.61 | 37.43 | 45.52 | b | 57.42 | 59.08 | 61.40 | a | 51.97 | a | 42.55 | 28.25 | 25.19 | 40.83 | ||||||||
1983 | 29.70 | a | 33.21 | 37.82 | a | 39.52 | a | 49.41 | b | 53.00 | 59.48 | a | 64.63 | a | 49.43 | a | 43.91 | c | 35.09 | c | 17.95 | 42.76 | ||||
1984 | 23.22 | a | 25.83 | 36.32 | 39.97 | 46.31 | b | 52.72 | a | 60.93 | a | 62.67 | b | 51.09 | a | 40.47 | a | 33.37 | ----- | z | 42.99 | a | ||||
1985 | 15.29 | c | 20.48 | a | 29.05 | a | 44.27 | 49.78 | b | 55.34 | b | 64.65 | 58.67 | b | 47.66 | e | ----- | z | ----- | z | ----- | z | 42.80 | c | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.91 | 28.81 | 33.10 | 40.30 | 47.57 | 54.28 | 60.26 | 60.12 | 52.35 | 42.78 | 32.50 | 25.64 | 41.73 | |||||||||||||
S.D. | 4.91 | 4.03 | 2.73 | 2.87 | 2.50 | 2.06 | 1.91 | 2.89 | 3.47 | 1.94 | 2.58 | 3.15 | 0.97 | |||||||||||||
SKEW | -0.63 | 0.08 | 0.13 | 0.12 | 0.67 | 0.55 | 0.33 | 0.16 | -0.01 | -0.16 | -0.45 | -0.32 | 0.65 | |||||||||||||
MAX | 29.94 | 37.14 | 37.98 | 46.70 | 53.63 | 58.25 | 64.65 | 65.50 | 58.57 | 46.47 | 36.15 | 31.53 | 43.75 | |||||||||||||
MIN | 11.66 | 20.48 | 28.69 | 34.65 | 43.85 | 51.22 | 56.56 | 55.63 | 46.52 | 38.78 | 28.02 | 17.95 | 40.62 | |||||||||||||
YRS | 28 | 27 | 28 | 28 | 27 | 30 | 29 | 30 | 30 | 29 | 27 | 23 | 18 |