YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.68 | a | 17.68 | k |
1954 | 23.68 | 28.68 | 23.17 | a | 38.66 | a | 42.60 | b | 52.84 | a | 56.53 | 52.71 | 50.55 | 43.47 | 33.80 | 24.52 | a | 39.27 | ||||||||
1955 | 17.17 | b | 16.23 | 25.55 | 32.17 | 41.87 | 51.67 | 54.81 | 54.68 | 52.37 | 43.25 | a | 29.70 | 25.23 | a | 37.06 | ||||||||||
1956 | 24.78 | a | 17.15 | c | 28.37 | 33.38 | b | 48.58 | 58.53 | 56.40 | 54.66 | 55.45 | 42.31 | 27.38 | b | 24.19 | 39.27 | |||||||||
1957 | 20.92 | 28.62 | 24.20 | a | 31.03 | a | 38.32 | 52.93 | 57.77 | a | 54.03 | a | 50.32 | b | 37.10 | 22.93 | 25.18 | a | 36.95 | |||||||
1958 | 19.53 | 24.05 | 20.73 | 31.25 | b | 46.90 | 57.50 | 59.60 | 57.92 | 50.23 | 40.84 | 30.57 | 27.89 | 38.92 | ||||||||||||
1959 | 21.74 | 20.25 | 24.52 | b | 35.30 | 44.53 | b | 55.78 | 56.89 | 55.03 | 50.30 | 40.34 | 29.97 | 24.97 | 38.30 | |||||||||||
1960 | 16.97 | 14.88 | 28.58 | 35.75 | 42.97 | 55.65 | 56.74 | 56.81 | 51.60 | 37.92 | 30.97 | 20.92 | 37.48 | |||||||||||||
1961 | 23.52 | a | 21.96 | 25.53 | 33.13 | 44.76 | 56.07 | 56.98 | 54.27 | 46.27 | 39.81 | 25.13 | 20.13 | a | 37.30 | |||||||||||
1962 | 20.65 | 24.71 | 21.17 | a | 38.08 | 45.06 | 53.23 | 54.71 | 58.07 | a | 50.32 | 41.19 | 34.66 | a | 26.05 | 38.99 | ||||||||||
1963 | 17.68 | 25.20 | 24.81 | 34.88 | 48.60 | 53.83 | 60.00 | a | 53.97 | 51.38 | 44.94 | 31.90 | 23.95 | 39.26 | ||||||||||||
1964 | 17.37 | 13.40 | 20.39 | 30.13 | 44.35 | 52.22 | 57.95 | 54.55 | a | 48.22 | 44.08 | 28.65 | 21.05 | 36.03 | ||||||||||||
1965 | 21.58 | 19.71 | 21.23 | 33.74 | a | 41.08 | 49.60 | a | 57.08 | 54.69 | 45.19 | a | 42.32 | 31.95 | 25.47 | 36.97 | ||||||||||
1966 | 17.76 | 15.62 | 28.13 | 36.13 | 46.94 | 52.63 | g | 58.12 | j | 54.97 | 49.71 | a | 39.95 | 33.66 | a | 22.25 | a | 34.51 | b | |||||||
1967 | 21.11 | 22.86 | 31.29 | 35.45 | 42.58 | a | 49.43 | b | 57.05 | 50.67 | a | 45.57 | a | 40.55 | a | 30.62 | 17.29 | 37.04 | ||||||||
1968 | 22.11 | 23.91 | 24.21 | 28.76 | a | 42.23 | c | 54.55 | a | 54.65 | 51.16 | 47.82 | 42.02 | a | 25.90 | 19.31 | 36.39 | |||||||||
1969 | 23.31 | 20.43 | 20.02 | 35.78 | 44.95 | 50.07 | b | 58.08 | 57.63 | p | 49.45 | 35.55 | 27.18 | 23.98 | b | 35.35 | a | |||||||||
1970 | 18.16 | 24.00 | c | 22.29 | b | 28.77 | h | 46.21 | j | 48.92 | e | 57.09 | h | 55.06 | d | 47.06 | e | 32.20 | c | 29.12 | f | 23.30 | k | 35.38 | e | |
1971 | 17.04 | h | 19.77 | d | 24.56 | f | 32.57 | a | 41.60 | 53.86 | i | 57.53 | a | 52.43 | c | 47.60 | 35.52 | 28.38 | 18.98 | 37.15 | c | |||||
1972 | 21.50 | 23.64 | 33.71 | 37.67 | a | 44.56 | 52.02 | d | 57.37 | 53.15 | 47.88 | 39.31 | ----- | z | 21.58 | 39.31 | a | |||||||||
1973 | 17.98 | 20.52 | 21.98 | 27.07 | 40.48 | 52.33 | a | 56.11 | h | 53.15 | 47.75 | 41.16 | 31.50 | 23.13 | 34.28 | a | ||||||||||
1974 | 19.68 | 20.29 | 31.35 | 33.07 | 47.16 | 57.57 | 55.24 | 52.58 | 47.58 | 38.97 | 27.32 | 18.56 | 37.45 | |||||||||||||
1975 | 18.80 | a | 18.64 | 22.87 | 28.53 | 40.63 | 52.42 | 54.10 | 54.81 | 46.12 | 40.45 | 29.32 | 24.18 | 35.90 | ||||||||||||
1976 | 21.56 | 25.57 | a | 24.79 | e | 34.41 | a | 42.83 | d | 52.53 | 54.82 | i | 53.15 | 46.83 | a | 36.11 | d | 28.48 | a | 23.02 | 35.39 | a | ||||
1977 | 17.36 | b | 21.64 | f | 21.18 | c | 34.44 | e | 42.27 | 55.90 | 56.86 | c | 56.06 | 49.62 | b | 42.40 | 30.20 | 24.55 | a | 39.17 | a | |||||
1978 | 20.02 | 19.57 | 28.00 | 34.32 | b | 40.27 | 54.77 | b | 58.39 | 53.32 | 47.72 | a | 43.02 | a | 28.25 | b | 18.97 | a | 37.22 | |||||||
1979 | 13.85 | a | 20.46 | ----- | z | 32.25 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.19 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.95 | 21.21 | 24.92 | 33.52 | 43.59 | 53.49 | 56.89 | 54.25 | 48.92 | 40.19 | 29.50 | 22.52 | 37.63 | |||||||||||||
S.D. | 2.62 | 3.98 | 3.81 | 2.95 | 2.72 | 2.69 | 1.55 | 1.82 | 2.38 | 3.07 | 2.84 | 2.90 | 1.14 | |||||||||||||
SKEW | -0.16 | -0.02 | 0.69 | -0.35 | 0.23 | 0.09 | -0.00 | 0.27 | 0.67 | -0.78 | -0.24 | -0.27 | 0.24 | |||||||||||||
MAX | 24.78 | 28.68 | 33.71 | 38.66 | 48.60 | 58.53 | 60.00 | 58.07 | 55.45 | 44.94 | 34.66 | 27.89 | 39.27 | |||||||||||||
MIN | 13.85 | 13.40 | 20.02 | 27.07 | 38.32 | 48.92 | 54.10 | 50.67 | 45.19 | 32.20 | 22.93 | 17.29 | 35.90 | |||||||||||||
YRS | 25 | 25 | 24 | 25 | 24 | 23 | 21 | 24 | 25 | 25 | 23 | 25 | 17 |