YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1965 | 28.84 | 23.68 | 27.39 | 34.10 | 39.26 | 45.67 | 55.45 | 54.61 | 48.53 | 42.32 | 36.97 | 23.97 | 38.40 | |||||||||||||
1966 | 21.55 | 19.57 | 27.03 | 35.97 | 43.68 | 49.80 | 54.71 | 51.71 | 47.47 | 38.90 | 34.43 | 26.68 | 37.62 | |||||||||||||
1967 | 25.65 | 28.36 | 32.03 | 31.20 | 39.32 | 47.30 | 53.16 | 50.71 | 47.70 | 41.10 | ----- | z | 24.50 | k | 39.65 | b | ||||||||||
1968 | 24.13 | 28.69 | 27.32 | 30.13 | 40.58 | 50.17 | 50.71 | 48.03 | 45.17 | 40.58 | 28.80 | 21.58 | 36.32 | |||||||||||||
1969 | 25.48 | 23.21 | 21.77 | 33.10 | 40.55 | 45.63 | 51.77 | 50.13 | 46.20 | 35.13 | 27.53 | 23.68 | 35.35 | |||||||||||||
1970 | 22.74 | 25.75 | 22.48 | 25.70 | 40.13 | 47.70 | 50.10 | 46.71 | 39.53 | 30.13 | 29.73 | 21.55 | 33.52 | |||||||||||||
1971 | 21.03 | 24.00 | 30.70 | a | 32.13 | 37.87 | 47.90 | 54.71 | 50.77 | 46.43 | 30.42 | 32.13 | 23.65 | 35.98 | ||||||||||||
1972 | 28.06 | 29.79 | a | 36.35 | 35.43 | 40.87 | 49.57 | 54.74 | 52.61 | 47.57 | 41.46 | c | 26.90 | a | 25.54 | c | 39.07 | |||||||||
1973 | 23.03 | b | 25.74 | a | 24.13 | 29.40 | 42.26 | 50.87 | 53.29 | 53.39 | 48.73 | 42.58 | 32.90 | 29.46 | c | 37.98 | ||||||||||
1974 | 25.13 | a | 24.59 | a | 32.00 | 35.37 | 43.90 | 55.67 | 52.74 | 52.50 | a | 47.53 | 40.71 | 32.45 | a | 22.63 | a | 38.77 | ||||||||
1975 | 26.87 | 24.04 | b | 25.70 | a | 27.73 | 38.26 | 48.70 | 52.77 | 53.29 | 48.55 | a | 40.65 | 33.40 | 28.65 | k | 38.18 | a | ||||||||
1976 | 26.76 | n | 28.23 | g | 27.23 | 31.17 | 40.90 | 49.33 | 52.63 | a | 51.74 | 47.30 | 37.90 | ----- | z | 27.77 | 40.66 | c | ||||||||
1977 | 24.27 | a | 27.71 | 24.97 | 34.10 | 37.52 | 51.00 | ----- | z | 52.74 | 49.97 | ----- | z | 33.64 | b | 28.30 | a | 36.42 | b | |||||||
1978 | 25.65 | 24.25 | ----- | z | ----- | z | 40.10 | 53.67 | 54.90 | 52.87 | 48.70 | 43.84 | 30.70 | 25.39 | 40.01 | b | ||||||||||
1979 | 21.35 | 24.15 | b | 25.83 | b | 34.63 | c | ----- | z | 48.62 | a | 53.48 | 49.70 | d | 50.76 | a | 42.95 | j | 28.83 | 29.64 | f | 37.49 | c | |||
1980 | 26.57 | a | 29.38 | 25.39 | 33.97 | a | ----- | z | 52.78 | c | 57.32 | c | 52.68 | c | 51.43 | ----- | z | 34.00 | c | 30.32 | i | 40.39 | c | |||
1981 | 29.03 | 30.07 | a | 27.40 | a | 35.76 | e | 41.07 | b | 53.48 | a | ----- | z | 51.74 | d | 49.43 | b | ----- | z | ----- | z | ----- | z | 39.75 | d | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.96 | 25.81 | 27.36 | 32.49 | 40.42 | 49.87 | 53.50 | 51.53 | 47.71 | 38.90 | 31.60 | 25.02 | 37.00 | |||||||||||||
S.D. | 2.56 | 2.93 | 3.79 | 3.05 | 1.88 | 2.81 | 1.87 | 2.01 | 2.65 | 4.42 | 2.92 | 2.62 | 1.84 | |||||||||||||
SKEW | 0.00 | -0.16 | 0.78 | -0.78 | 0.33 | 0.39 | 0.04 | -0.91 | -1.62 | -1.09 | -0.04 | 0.25 | -0.63 | |||||||||||||
MAX | 29.03 | 30.07 | 36.35 | 35.97 | 43.90 | 55.67 | 57.32 | 54.61 | 51.43 | 43.84 | 36.97 | 29.46 | 39.07 | |||||||||||||
MIN | 21.03 | 19.57 | 21.77 | 25.70 | 37.52 | 45.63 | 50.10 | 46.71 | 39.53 | 30.13 | 26.90 | 21.55 | 33.52 | |||||||||||||
YRS | 16 | 16 | 16 | 16 | 15 | 17 | 15 | 17 | 17 | 13 | 14 | 12 | 9 |