YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | 50.71 | x | 52.00 | 73.29 | 78.10 | 86.81 | 83.03 | 77.40 | 60.90 | 46.57 | 38.03 | 66.24 | c | |||||||||
1940 | 19.35 | 29.59 | 33.03 | 52.53 | 64.87 | 76.43 | 83.32 | 77.77 | 72.93 | 62.26 | 40.77 | 31.10 | a | 53.66 | ||||||||||||
1941 | 28.26 | 27.39 | 34.58 | 62.40 | 72.48 | 78.07 | 84.58 | 83.16 | 74.80 | 60.61 | 45.83 | 36.32 | 57.37 | |||||||||||||
1942 | 26.00 | 27.36 | 41.73 | a | 63.10 | 66.32 | 76.27 | 81.32 | 78.97 | 68.27 | 61.55 | 43.10 | 24.68 | 54.89 | ||||||||||||
1943 | 23.94 | 30.50 | 35.06 | 53.53 | 66.32 | 79.87 | 84.06 | 81.90 | 68.53 | 60.13 | 39.03 | 33.84 | 54.73 | |||||||||||||
1944 | 35.19 | 31.97 | 34.52 | 51.27 | 72.10 | 80.23 | 82.97 | 83.10 | 72.67 | 61.45 | 47.48 | a | 26.06 | 56.58 | ||||||||||||
1945 | 22.65 | 30.57 | 53.73 | a | 58.40 | 64.52 | 71.77 | 80.65 | 81.39 | 70.60 | 58.58 | 42.83 | 24.13 | 54.98 | ||||||||||||
1946 | 29.45 | 30.39 | 49.87 | 60.33 | 66.52 | 76.57 | 84.35 | 79.94 | 72.63 | 65.84 | 46.10 | 35.03 | a | 58.09 | ||||||||||||
1947 | 30.55 | 25.00 | 37.00 | 52.37 | 61.68 | 73.97 | 81.03 | b | 87.83 | a | 74.53 | 71.26 | 36.57 | 30.35 | 55.18 | |||||||||||
1948 | 22.58 | 27.03 | 39.13 | 61.03 | 67.20 | a | 77.73 | 85.40 | a | 84.87 | 78.57 | 60.06 | 45.43 | 31.84 | 56.74 | |||||||||||
1949 | 29.65 | 28.50 | 39.35 | 58.27 | 71.65 | 82.70 | 85.71 | 83.29 | 68.73 | 65.84 | 44.03 | 34.48 | 57.68 | |||||||||||||
1950 | 31.23 | 28.79 | 34.71 | 47.43 | 68.65 | 78.63 | 80.48 | 75.03 | a | 69.17 | 64.26 | 39.90 | 24.10 | 53.53 | ||||||||||||
1951 | 23.29 | 28.39 | 35.26 | 51.73 | 71.33 | a | 74.13 | 81.10 | 76.77 | 68.37 | 58.74 | 36.13 | 28.39 | 52.80 | ||||||||||||
1952 | 29.52 | 33.86 | a | 36.86 | b | 59.83 | 66.71 | 79.00 | 84.20 | a | 79.42 | 75.38 | a | 57.23 | 47.23 | 33.10 | 56.86 | |||||||||
1953 | 30.87 | 32.57 | 40.50 | a | 51.59 | a | 69.06 | 80.47 | 83.10 | 82.06 | 74.63 | 68.26 | 50.03 | 33.87 | 58.08 | |||||||||||
1954 | 28.93 | a | 39.82 | 39.81 | 61.25 | b | 63.30 | a | 80.23 | 81.47 | a | 79.39 | 72.18 | b | 59.00 | g | 46.03 | 31.39 | 56.71 | a | ||||||
1955 | 26.50 | a | 29.25 | 39.06 | 63.00 | 71.32 | 75.90 | 86.69 | b | 87.39 | 76.80 | 62.00 | 40.13 | 27.35 | 57.12 | |||||||||||
1956 | 28.55 | 30.76 | 36.50 | a | 54.97 | 66.48 | 80.13 | 77.70 | a | 78.16 | 69.41 | a | 67.00 | 42.90 | 33.10 | 55.47 | ||||||||||
1957 | 21.93 | a | 33.71 | 42.06 | 56.17 | a | 64.74 | 77.59 | a | 84.00 | 81.35 | 71.45 | a | 59.19 | 41.73 | 34.73 | a | 55.72 | ||||||||
1958 | 27.94 | 25.86 | 40.71 | 58.17 | 72.16 | 74.90 | 80.70 | a | 83.48 | 73.59 | a | 63.68 | 46.53 | 24.61 | 56.03 | |||||||||||
1959 | 20.81 | 25.75 | 35.87 | 55.30 | 73.65 | 79.53 | 81.52 | f | 84.63 | a | 75.23 | 53.55 | 35.57 | 36.06 | 52.36 | a | ||||||||||
1960 | 29.03 | 28.69 | 31.90 | 58.70 | 65.58 | 75.07 | 81.71 | 80.71 | 73.73 | 59.68 | 48.00 | 29.61 | 55.20 | |||||||||||||
1961 | 27.06 | 36.75 | 41.42 | 51.47 | 67.84 | 79.83 | 83.52 | 83.23 | 74.27 | 62.13 | 43.90 | 27.74 | 56.60 | |||||||||||||
1962 | 20.94 | 25.18 | 37.71 | 56.53 | 72.65 | 76.87 | 79.07 | a | 83.16 | 70.40 | 62.58 | 44.40 | 29.87 | 54.95 | ||||||||||||
1963 | 14.61 | 23.89 | 43.19 | 61.53 | 67.65 | 82.33 | 85.65 | 81.48 | 74.77 | 72.32 | 49.80 | 22.35 | 56.63 | |||||||||||||
1964 | 32.81 | 34.52 | 40.16 | 57.90 | 74.68 | 80.90 | 84.61 | 79.90 | 70.53 | 60.48 | 48.77 | 27.32 | 57.72 | |||||||||||||
1965 | 24.16 | 27.04 | 32.23 | 51.43 | 74.55 | 78.40 | 82.84 | 79.16 | 69.43 | 60.90 | 45.23 | 36.26 | 55.14 | |||||||||||||
1966 | 20.29 | 30.00 | 44.32 | 52.63 | 65.65 | 79.97 | 86.77 | 79.97 | 72.33 | 61.13 | 44.90 | 29.35 | 55.61 | |||||||||||||
1967 | 29.71 | 24.54 | 40.71 | 55.57 | 64.77 | 78.57 | 80.77 | 77.58 | 72.30 | 58.61 | 39.10 | 31.58 | 54.48 | |||||||||||||
1968 | 27.16 | 28.14 | 51.68 | 60.00 | 66.35 | 77.43 | 81.94 | 82.29 | 73.20 | 62.42 | 43.17 | 30.19 | 57.00 | |||||||||||||
1969 | 22.84 | 31.64 | 37.23 | a | 57.67 | 71.39 | 70.10 | 82.23 | 85.52 | 72.87 | 57.23 | 42.07 | a | 29.26 | 55.00 | |||||||||||
1970 | 17.94 | 29.04 | 39.10 | 58.50 | 69.94 | 79.27 | 85.58 | 85.39 | 72.20 | 61.03 | 41.10 | 29.94 | 55.75 | |||||||||||||
1971 | 19.45 | 27.64 | 35.74 | 57.17 | 68.90 | 81.70 | 79.94 | 79.94 | 75.83 | 67.13 | 43.17 | 32.35 | 55.75 | |||||||||||||
1972 | 22.97 | 26.41 | 35.06 | 49.93 | 73.84 | 77.07 | 80.39 | 80.10 | 70.73 | 55.23 | 39.80 | 26.42 | 53.16 | |||||||||||||
1973 | 30.35 | 31.32 | 48.42 | 52.43 | 63.68 | 79.90 | 84.32 | 82.87 | 72.30 | 64.77 | 43.60 | 28.94 | 56.91 | |||||||||||||
1974 | 25.58 | 28.00 | 39.45 | 58.90 | 63.61 | 74.07 | 83.42 | 78.65 | 69.31 | a | 59.97 | 44.17 | 32.35 | 54.79 | ||||||||||||
1975 | 29.32 | 28.07 | 35.06 | 48.83 | 72.58 | 76.73 | 83.84 | ----- | z | ----- | z | ----- | z | 35.40 | t | 30.65 | 50.64 | d | ||||||||
1976 | 23.87 | 34.10 | 42.83 | a | 58.17 | 66.77 | 82.30 | 83.61 | 79.29 | 72.14 | a | 53.59 | n | 37.50 | 21.80 | a | 54.76 | a | ||||||||
1977 | 13.16 | 29.71 | 47.32 | 62.90 | a | 79.80 | a | 75.69 | a | 84.25 | c | 75.63 | a | 69.20 | 58.86 | b | 42.23 | 26.16 | 55.41 | |||||||
1978 | 18.90 | a | 23.39 | 37.90 | a | 52.45 | a | 69.62 | b | 77.00 | a | 77.93 | a | 80.35 | 75.30 | 57.19 | 43.52 | a | 26.45 | 53.33 | ||||||
1979 | 14.42 | 19.00 | a | 37.57 | a | 51.31 | a | 66.43 | c | 76.72 | e | 81.77 | e | 76.31 | b | 73.73 | 58.30 | d | 42.43 | b | 37.33 | a | 52.94 | |||
1980 | 25.48 | d | 26.37 | b | 37.34 | b | 57.00 | b | 68.52 | j | ----- | z | 83.77 | e | 78.86 | b | 70.17 | 54.50 | c | 44.08 | d | 29.59 | b | 50.72 | b | |
1981 | 26.86 | c | 33.65 | b | 46.03 | 59.82 | b | 68.00 | j | 78.84 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.04 | g | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.10 | 29.15 | 39.57 | 56.17 | 68.80 | 77.88 | 82.87 | 81.06 | 72.45 | 61.46 | 43.29 | 30.19 | 55.61 | |||||||||||||
S.D. | 5.14 | 3.84 | 5.13 | 4.24 | 3.94 | 2.76 | 2.29 | 3.01 | 2.64 | 4.14 | 3.56 | 4.14 | 1.47 | |||||||||||||
SKEW | -0.46 | 0.24 | 0.97 | -0.12 | 0.47 | -0.56 | -0.28 | 0.17 | 0.20 | 0.64 | -0.27 | -0.07 | -0.17 | |||||||||||||
MAX | 35.19 | 39.82 | 53.73 | 63.10 | 79.80 | 82.70 | 86.81 | 87.83 | 78.57 | 72.32 | 50.03 | 38.03 | 58.09 | |||||||||||||
MIN | 13.16 | 19.00 | 31.90 | 47.43 | 61.68 | 70.10 | 77.70 | 75.03 | 68.27 | 53.55 | 35.57 | 21.80 | 52.80 | |||||||||||||
YRS | 42 | 42 | 42 | 43 | 41 | 42 | 41 | 41 | 41 | 39 | 41 | 42 | 36 |