YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.87 | 76.39 | 63.40 | 59.45 | 36.70 | 25.32 | 56.36 | f | ||||||
1950 | 20.83 | a | 24.89 | 31.19 | 38.50 | 62.84 | 73.33 | 73.35 | 72.43 | a | 65.79 | a | 60.23 | a | 31.90 | 20.61 | 47.99 | |||||||||
1951 | 19.68 | 25.79 | 31.52 | 47.23 | 69.39 | 68.97 | 76.03 | 69.35 | 60.93 | 52.68 | 30.97 | 23.19 | 47.98 | |||||||||||||
1952 | 23.29 | 29.66 | 33.26 | 56.93 | 64.45 | 75.20 | 78.45 | 75.65 | 70.33 | 51.74 | 40.50 | 29.68 | 52.43 | |||||||||||||
1953 | 25.06 | 26.82 | 37.10 | 45.87 | 66.58 | 75.23 | 78.17 | a | 78.06 | 66.97 | 64.00 | 45.50 | 28.23 | 53.13 | ||||||||||||
1954 | 21.13 | 35.57 | 33.06 | 52.90 | 56.35 | 75.60 | 77.61 | 73.77 | 62.50 | 53.20 | a | 40.93 | a | 27.97 | 50.88 | |||||||||||
1955 | 22.48 | 25.68 | 35.13 | 59.72 | a | 70.90 | 74.17 | 83.16 | 81.23 | 67.17 | 57.55 | 33.03 | 21.97 | 52.68 | ||||||||||||
1956 | 26.87 | 27.24 | 34.42 | 46.80 | 64.94 | 76.00 | 72.19 | 73.26 | 62.97 | 64.00 | 36.53 | 27.94 | 51.10 | |||||||||||||
1957 | 15.00 | 27.71 | 36.55 | 52.60 | 64.03 | 71.87 | 80.13 | 76.47 | a | 65.67 | 56.61 | 36.73 | 27.77 | 50.93 | ||||||||||||
1958 | 26.35 | 22.71 | 37.65 | 55.40 | 64.87 | 69.33 | 75.81 | 75.45 | 67.27 | 57.29 | 40.53 | 20.10 | 51.06 | |||||||||||||
1959 | 16.87 | 25.11 | 38.35 | 51.80 | 70.29 | 75.53 | 77.81 | 78.16 | 67.97 | 49.26 | 29.00 | 31.87 | 51.00 | |||||||||||||
1960 | 23.13 | 26.59 | 31.61 | 50.00 | 62.90 | 72.83 | 77.42 | 77.81 | 67.33 | 57.45 | 40.80 | 24.16 | 51.00 | |||||||||||||
1961 | 22.42 | 33.54 | 40.00 | 47.90 | 63.03 | 75.17 | 77.65 | 78.81 | 66.93 | 58.81 | 38.53 | 24.87 | 52.30 | |||||||||||||
1962 | 18.03 | 22.25 | 38.90 | 49.87 | 68.94 | 73.90 | 75.26 | 76.00 | 63.37 | 56.90 | 38.17 | 24.45 | 50.50 | |||||||||||||
1963 | 12.16 | 19.54 | 40.32 | 55.60 | 63.55 | 76.47 | 79.42 | 74.00 | 69.20 | 68.94 | 44.10 | 21.06 | 52.03 | |||||||||||||
1964 | 28.81 | 30.17 | 34.65 | 54.57 | 70.19 | 74.40 | 80.68 | 71.00 | 65.63 | 56.19 | 43.17 | 22.39 | 52.65 | |||||||||||||
1965 | 21.00 | 23.04 | 30.33 | a | 47.60 | 68.97 | 72.30 | 75.00 | 73.00 | 59.93 | 57.03 | 38.03 | 29.74 | 49.66 | ||||||||||||
1966 | 18.48 | 26.43 | 40.10 | 46.83 | 60.35 | 76.90 | 82.81 | 72.10 | 67.47 | 54.97 | 35.33 | 25.29 | 50.59 | |||||||||||||
1967 | 24.87 | 21.11 | 39.23 | 53.00 | 60.32 | 70.03 | 72.03 | 71.87 | 67.70 | 52.29 | 33.63 | 27.97 | 49.50 | |||||||||||||
1968 | 22.26 | 24.59 | 46.23 | 55.87 | 63.52 | 72.10 | 76.77 | 76.94 | 66.86 | a | 57.48 | 37.30 | 25.27 | a | 52.10 | |||||||||||
1969 | 22.74 | 29.57 | 36.29 | 56.10 | 67.32 | 64.10 | 76.26 | 79.94 | 67.73 | 49.84 | 38.83 | 27.19 | 51.33 | |||||||||||||
1970 | 17.97 | 26.32 | 35.68 | 52.97 | 61.97 | 75.67 | 80.10 | 77.74 | 67.00 | 57.77 | 36.83 | 25.84 | 51.32 | |||||||||||||
1971 | 16.68 | 26.07 | 34.03 | 51.77 | 62.81 | 78.17 | 74.00 | 73.58 | 67.67 | 60.90 | 37.60 | 27.61 | 50.91 | |||||||||||||
1972 | 19.81 | 22.07 | 33.48 | 47.90 | 71.71 | 69.67 | 72.10 | 74.71 | 64.93 | 50.42 | 34.80 | 20.52 | 48.51 | |||||||||||||
1973 | 28.32 | 27.50 | 43.61 | 50.03 | 59.45 | 74.38 | a | 78.48 | 76.84 | 66.10 | 61.65 | 36.47 | 24.58 | 52.28 | ||||||||||||
1974 | 20.77 | 26.71 | 35.19 | 52.80 | 61.81 | 70.67 | 80.16 | 73.77 | 61.37 | 54.90 | 40.73 | 30.74 | 50.80 | |||||||||||||
1975 | 23.81 | 26.89 | 33.74 | 46.13 | 71.23 | 73.50 | 80.87 | 77.35 | 63.10 | 60.68 | 44.27 | 24.29 | 52.16 | |||||||||||||
1976 | 19.23 | 33.83 | 34.94 | 55.73 | 64.26 | 79.13 | 80.68 | 81.26 | 70.77 | 50.13 | 31.13 | 17.87 | a | 51.58 | ||||||||||||
1977 | 12.16 | 27.32 | 42.55 | 58.80 | 76.57 | a | 72.27 | 80.81 | 70.83 | a | 63.17 | 56.23 | 38.33 | 22.97 | 51.83 | |||||||||||
1978 | 19.10 | 23.18 | 37.55 | 48.77 | 69.90 | 73.87 | 74.94 | 76.77 | 69.43 | 54.61 | 38.60 | 21.55 | 50.69 | |||||||||||||
1979 | 12.58 | 20.54 | 36.23 | 46.90 | 60.90 | 72.43 | 78.45 | 73.29 | 69.20 | 49.32 | 35.70 | 30.71 | 48.85 | |||||||||||||
1980 | 20.81 | 23.34 | 34.03 | 53.70 | 71.03 | 72.31 | a | 79.55 | 75.48 | b | 65.20 | 48.26 | 38.37 | 22.06 | 50.35 | |||||||||||
1981 | 24.26 | 28.68 | 38.97 | 54.17 | 64.74 | 72.23 | 77.45 | 76.06 | 64.60 | 49.84 | 43.80 | 25.58 | 51.70 | |||||||||||||
1982 | 13.94 | 24.61 | 34.77 | 47.17 | 71.50 | a | 67.45 | a | 78.16 | 72.48 | 64.37 | 56.65 | 36.86 | a | 28.45 | 49.70 | ||||||||||
1983 | 25.10 | a | 30.70 | a | 36.17 | b | 47.17 | a | 60.71 | 73.66 | a | 81.68 | 80.32 | 68.37 | 54.74 | 37.93 | a | 15.10 | 50.97 | |||||||
1984 | 19.33 | a | 34.38 | 32.48 | 55.10 | 62.65 | 75.23 | 77.87 | 77.94 | 65.47 | 58.13 | 39.41 | a | 26.74 | 52.06 | |||||||||||
1985 | 19.24 | b | 24.36 | 42.29 | c | 56.23 | 69.13 | 71.13 | 77.52 | 73.52 | 66.83 | 57.03 | b | 31.76 | a | 17.27 | a | 50.53 | ||||||||
1986 | 24.61 | 25.46 | 41.32 | 58.23 | 70.94 | 74.43 | 79.39 | 73.29 | 65.07 | a | 54.97 | 35.03 | 29.40 | a | 52.68 | |||||||||||
1987 | 27.87 | 36.50 | 45.06 | 63.62 | a | 71.40 | a | 78.90 | 80.52 | 75.70 | a | 70.63 | 49.35 | 41.80 | 30.10 | 55.95 | ||||||||||
1988 | 20.10 | 22.48 | 38.14 | b | 56.73 | 74.81 | 80.23 | 83.45 | 78.73 | a | 67.53 | 48.87 | 36.83 | 26.20 | a | 52.84 | ||||||||||
1989 | 29.39 | 20.57 | 34.00 | a | 51.34 | a | 66.19 | 73.10 | 82.06 | 77.06 | 70.30 | 59.13 | 32.63 | 15.61 | 50.95 | |||||||||||
1990 | 32.71 | 31.32 | 43.03 | 58.07 | 64.20 | a | 75.10 | 77.28 | b | 76.97 | 68.13 | 54.77 | ----- | z | ----- | z | 58.16 | b | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.45 | 26.61 | 36.91 | 52.16 | 66.14 | 73.58 | 78.06 | 75.60 | 66.25 | 55.82 | 37.54 | 24.88 | 51.19 | |||||||||||||
S.D. | 4.78 | 4.18 | 3.94 | 4.89 | 4.58 | 3.16 | 2.92 | 2.86 | 2.66 | 4.65 | 3.90 | 4.17 | 1.50 | |||||||||||||
SKEW | 0.01 | 0.60 | 0.53 | -0.20 | 0.18 | -0.47 | -0.27 | -0.01 | -0.39 | 0.37 | -0.05 | -0.53 | 0.21 | |||||||||||||
MAX | 32.71 | 36.50 | 46.23 | 63.62 | 76.57 | 80.23 | 83.45 | 81.26 | 70.77 | 68.94 | 45.50 | 31.87 | 55.95 | |||||||||||||
MIN | 12.16 | 19.54 | 30.33 | 38.50 | 56.35 | 64.10 | 72.03 | 69.35 | 59.93 | 48.26 | 29.00 | 15.10 | 47.98 | |||||||||||||
YRS | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 41 | 41 | 40 |