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 | 80.79 | 73.02 | 63.90 | 53.11 | c | 46.43 | x | 67.71 | h | |||
1963 | 36.52 | b | 47.73 | 55.76 | 63.78 | 73.16 | 77.40 | 82.50 | 82.56 | w | 73.54 | d | 64.68 | 51.62 | 42.05 | 60.79 | a | |||||||||
1964 | 37.08 | 38.35 | c | 49.85 | 59.72 | 71.45 | 76.73 | 81.32 | 79.73 | 72.93 | 61.50 | 49.12 | a | 39.71 | g | 61.62 | a | |||||||||
1965 | 45.82 | 44.82 | 50.47 | a | 63.12 | 69.42 | 76.35 | 81.52 | 78.90 | 73.18 | 61.39 | 55.87 | 45.71 | 62.21 | ||||||||||||
1966 | 39.11 | 40.68 | 55.05 | a | 62.80 | 72.34 | 77.60 | 82.15 | 76.90 | 72.42 | 60.06 | 53.95 | 42.12 | e | 61.26 | |||||||||||
1967 | 40.33 | b | 47.18 | 58.34 | 62.50 | 66.85 | 76.95 | a | 80.95 | 77.82 | 71.81 | a | 63.23 | 53.07 | 41.48 | a | 61.71 | |||||||||
1968 | 42.02 | 49.41 | 52.37 | 60.38 | 70.39 | 79.22 | 78.24 | 76.45 | 70.67 | 63.66 | 48.61 | l | 40.87 | 62.15 | a | |||||||||||
1969 | 47.37 | 47.91 | 48.95 | 63.93 | 69.85 | 78.13 | 81.84 | 82.52 | 74.08 | 63.67 | a | 49.62 | 44.58 | e | 62.70 | |||||||||||
1970 | 42.68 | 46.96 | a | 51.58 | a | 60.53 | 68.74 | 76.25 | 80.23 | 78.85 | 72.85 | 57.92 | 50.48 | 47.82 | 61.24 | |||||||||||
1971 | 44.35 | 46.75 | 55.15 | 60.65 | 67.92 | 78.13 | 80.73 | 76.42 | 73.02 | 61.90 | 52.02 | 43.57 | h | 63.37 | a | |||||||||||
1972 | 44.68 | 47.86 | 60.50 | 63.57 | 68.85 | 77.15 | 80.42 | 77.10 | 72.52 | 65.47 | 47.75 | 43.55 | 62.45 | |||||||||||||
1973 | 40.89 | 44.84 | 52.02 | 56.72 | 68.13 | 76.10 | 79.47 | 77.00 | 74.07 | 62.27 | 52.20 | 43.31 | 60.58 | |||||||||||||
1974 | 42.65 | a | 43.68 | 57.81 | 62.32 | 71.21 | 79.13 | 79.13 | 76.29 | 69.18 | 63.40 | 50.32 | 40.29 | b | 61.28 | |||||||||||
1975 | 41.42 | 46.32 | 52.74 | 56.58 | 65.03 | 76.12 | 77.85 | a | 77.69 | 70.03 | 61.92 | 51.09 | a | 43.52 | 60.03 | |||||||||||
1976 | 41.95 | 51.16 | 54.74 | 61.90 | 67.26 | 77.47 | 77.73 | 78.15 | 70.75 | 56.41 | i | ----- | z | ----- | z | 64.57 | c | |||||||||
1977 | ----- | z | ----- | z | 50.79 | 61.43 | a | 68.95 | 79.65 | 80.53 | 81.76 | 76.46 | d | ----- | z | ----- | z | ----- | z | 71.37 | e | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.92 | 45.98 | 53.74 | 61.33 | 69.30 | 77.49 | 80.31 | 78.42 | 72.53 | 62.50 | 51.55 | 43.21 | 61.50 | |||||||||||||
S.D. | 3.09 | 3.36 | 3.38 | 2.30 | 2.17 | 1.16 | 1.53 | 1.98 | 1.77 | 1.95 | 2.17 | 2.22 | 0.87 | |||||||||||||
SKEW | -0.11 | -0.86 | 0.46 | -0.94 | -0.02 | 0.51 | -0.40 | 0.82 | 0.05 | -0.75 | 0.18 | 0.68 | -0.20 | |||||||||||||
MAX | 47.37 | 51.16 | 60.50 | 63.93 | 73.16 | 79.65 | 82.50 | 82.52 | 76.46 | 65.47 | 55.87 | 47.82 | 62.70 | |||||||||||||
MIN | 36.52 | 38.35 | 48.95 | 56.58 | 65.03 | 76.10 | 77.73 | 76.29 | 69.18 | 57.92 | 47.75 | 40.29 | 60.03 | |||||||||||||
YRS | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 14 | 13 | 11 | 9 |