YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.55 | 60.43 | 48.84 | 36.29 | b | 34.43 | x | 52.53 | h | |||
1963 | 18.93 | a | 30.68 | 39.06 | 46.00 | 55.90 | 60.40 | 68.16 | 73.50 | w | 58.54 | d | 46.87 | 35.30 | 24.32 | 44.02 | a | |||||||||
1964 | 18.58 | 20.31 | c | 33.26 | 41.43 | 53.48 | 60.20 | 66.65 | 65.26 | 58.23 | 42.94 | 29.79 | a | 25.29 | g | 44.56 | a | |||||||||
1965 | 29.52 | 29.14 | 33.33 | a | 44.87 | 51.81 | 59.70 | 66.68 | 64.68 | 58.87 | 42.19 | 37.67 | 31.00 | 45.79 | ||||||||||||
1966 | 22.00 | 23.36 | 36.53 | a | 46.53 | 56.55 | 62.37 | 67.87 | 62.90 | 57.30 | 41.81 | 35.27 | 22.69 | e | 44.60 | |||||||||||
1967 | 20.31 | b | 29.11 | 38.97 | 44.63 | 49.23 | 61.34 | a | 67.23 | 63.65 | 57.55 | a | 43.87 | 37.57 | 27.53 | a | 45.08 | |||||||||
1968 | 28.90 | 34.79 | 38.19 | 43.70 | 53.10 | 62.40 | 64.77 | 63.35 | 54.30 | 44.52 | 34.06 | l | 23.68 | 46.52 | a | |||||||||||
1969 | 30.61 | 30.68 | 32.32 | 45.20 | 51.16 | 61.50 | 67.97 | 67.55 | 59.20 | 47.30 | a | 33.90 | 29.73 | e | 46.43 | |||||||||||
1970 | 25.97 | 30.33 | a | 36.23 | a | 42.27 | 50.77 | 59.83 | 65.87 | 63.90 | 59.37 | 42.35 | 31.30 | 29.23 | 44.79 | |||||||||||
1971 | 26.45 | 27.68 | 36.29 | 43.33 | 50.10 | 61.63 | 66.84 | 62.45 | 56.93 | 47.13 | 35.80 | 30.22 | h | 46.79 | a | |||||||||||
1972 | 28.42 | 29.00 | 42.06 | 44.23 | 51.87 | 62.80 | 66.26 | 64.29 | 59.90 | 51.10 | 32.67 | 26.90 | 46.63 | |||||||||||||
1973 | 28.16 | 31.57 | 36.32 | 39.13 | 51.97 | 59.80 | 66.39 | 62.03 | 58.57 | 42.71 | 32.93 | 24.61 | 44.52 | |||||||||||||
1974 | 25.17 | a | 23.29 | 38.94 | 44.67 | 53.61 | 61.97 | 65.39 | 63.68 | 56.60 | 49.81 | 35.70 | 26.28 | b | 45.42 | |||||||||||
1975 | 26.61 | 30.93 | 35.26 | 37.93 | 46.16 | 58.03 | 64.10 | 63.00 | 55.57 | 42.87 | 31.70 | 26.35 | 43.21 | |||||||||||||
1976 | 25.35 | 33.14 | 36.32 | 43.60 | 51.65 | 60.57 | 64.23 | 63.03 | 57.57 | 41.23 | i | ----- | z | ----- | z | 48.38 | c | |||||||||
1977 | ----- | z | ----- | z | 33.52 | 44.41 | a | 51.87 | 63.67 | 65.84 | 67.29 | 61.69 | d | ----- | z | ----- | z | ----- | z | 55.47 | e | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.36 | 28.86 | 36.44 | 43.46 | 51.95 | 61.08 | 66.28 | 64.11 | 58.16 | 45.31 | 34.30 | 26.58 | 45.16 | |||||||||||||
S.D. | 3.94 | 4.02 | 2.69 | 2.39 | 2.53 | 1.47 | 1.28 | 1.60 | 1.84 | 3.13 | 2.46 | 2.65 | 1.05 | |||||||||||||
SKEW | -0.56 | -0.78 | 0.28 | -1.09 | -0.24 | -0.19 | -0.24 | 1.02 | -0.19 | 0.52 | -0.31 | 0.20 | -0.28 | |||||||||||||
MAX | 30.61 | 34.79 | 42.06 | 46.53 | 56.55 | 63.67 | 68.16 | 67.55 | 61.69 | 51.10 | 37.67 | 31.00 | 46.63 | |||||||||||||
MIN | 18.58 | 20.31 | 32.32 | 37.93 | 46.16 | 58.03 | 64.10 | 62.03 | 54.30 | 41.81 | 29.79 | 22.69 | 43.21 | |||||||||||||
YRS | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 14 | 13 | 11 | 9 |