YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | 62.77 | a | 72.43 | 79.13 | 84.58 | d | 88.68 | 85.16 | 79.93 | 77.11 | m | 64.79 | a | 52.53 | a | 74.44 | c | |||||
1966 | 51.48 | 51.86 | 66.90 | 73.03 | 81.45 | 87.27 | 90.00 | 82.16 | 79.93 | 74.23 | 67.43 | 56.39 | 71.84 | |||||||||||||
1967 | 58.74 | 61.32 | 70.39 | 72.73 | 79.67 | a | 86.07 | a | 87.48 | 84.71 | 81.27 | 77.61 | 67.93 | 53.00 | 73.41 | |||||||||||
1968 | 53.72 | b | 61.64 | a | 68.55 | 68.00 | 80.00 | ----- | z | 86.39 | 83.42 | 81.97 | 75.23 | 66.43 | 60.68 | 71.46 | a | |||||||||
1969 | 66.97 | a | 65.39 | 66.16 | 78.83 | 82.32 | 91.07 | 91.35 | 89.87 | 83.53 | 78.03 | 71.53 | 66.29 | 77.61 | ||||||||||||
1970 | 62.00 | 65.25 | 63.00 | 68.87 | 80.90 | 89.93 | 88.35 | 89.58 | 85.10 | 74.71 | 71.30 | 63.26 | 75.19 | |||||||||||||
1971 | 63.03 | 65.50 | 71.13 | 75.07 | 78.42 | 90.50 | 90.06 | 81.03 | 83.00 | 74.16 | 68.00 | 55.90 | 74.65 | |||||||||||||
1972 | 59.68 | 63.28 | 76.32 | 78.50 | 82.10 | 85.80 | 90.58 | 85.68 | 82.50 | 73.13 | 63.30 | 55.90 | 74.73 | |||||||||||||
1973 | 54.84 | 60.68 | 60.81 | 66.37 | 79.48 | 89.73 | 88.41 | b | 84.23 | 84.67 | 81.03 | 72.20 | 67.87 | 74.19 | ||||||||||||
1974 | 59.29 | 52.61 | 70.32 | 74.77 | 83.29 | 93.47 | 81.48 | 82.84 | 82.80 | 75.10 | 66.90 | 54.23 | 73.09 | |||||||||||||
1975 | 53.77 | 61.25 | ----- | z | 61.03 | 69.52 | 86.40 | 83.52 | 85.87 | 78.63 | 74.06 | 67.17 | 57.52 | 70.79 | a | |||||||||||
1976 | 53.68 | 61.72 | 67.74 | 71.70 | 78.26 | 83.03 | 78.39 | 84.35 | 77.63 | 74.48 | d | 68.87 | 64.90 | 72.06 | ||||||||||||
1977 | 53.32 | 65.18 | 74.10 | a | ----- | z | 73.87 | 81.83 | 80.77 | 83.19 | 81.47 | ----- | z | ----- | z | 65.23 | 73.22 | c | ||||||||
1978 | 58.03 | 55.89 | 57.81 | 73.10 | 77.06 | 83.67 | ----- | z | 82.77 | 79.00 | 74.26 | 64.27 | 56.69 | r | 70.59 | b | ||||||||||
1979 | 57.55 | 50.46 | 51.06 | 67.53 | 77.13 | 84.07 | 87.65 | 79.84 | 82.97 | ----- | z | ----- | z | 61.61 | 69.99 | b | ||||||||||
1980 | 58.13 | 60.34 | 61.97 | 68.17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.15 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 57.62 | 60.16 | 65.94 | 71.34 | 78.84 | 86.96 | 86.65 | 84.31 | 81.63 | 75.50 | 67.70 | 59.66 | 74.09 | |||||||||||||
S.D. | 4.26 | 5.09 | 6.54 | 4.74 | 3.53 | 3.48 | 4.04 | 2.75 | 2.21 | 2.26 | 2.76 | 5.23 | 1.77 | |||||||||||||
SKEW | 0.54 | -0.78 | -0.55 | -0.32 | -1.26 | 0.32 | -0.82 | 0.64 | -0.23 | 1.41 | 0.17 | 0.14 | 0.60 | |||||||||||||
MAX | 66.97 | 65.50 | 76.32 | 78.83 | 83.29 | 93.47 | 91.35 | 89.87 | 85.10 | 81.03 | 72.20 | 67.87 | 77.61 | |||||||||||||
MIN | 51.48 | 50.46 | 51.06 | 61.03 | 69.52 | 81.83 | 78.39 | 79.84 | 77.63 | 73.13 | 63.30 | 52.53 | 71.84 | |||||||||||||
YRS | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 12 | 13 | 14 | 9 |