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 | 74.46 | b | 69.23 | 59.80 | 45.10 | 62.15 | h | |||
1960 | 40.81 | 46.24 | 57.10 | 58.13 | 62.68 | 80.97 | 89.00 | 81.93 | d | 81.73 | 68.00 | 49.40 | 46.35 | 63.53 | ||||||||||||
1961 | 49.63 | a | 49.00 | 50.33 | a | 60.53 | 63.84 | 81.57 | 87.19 | 88.67 | d | 73.50 | 65.37 | a | 50.53 | 40.67 | a | 63.40 | ||||||||
1962 | 39.42 | 45.32 | 49.60 | a | 65.43 | 59.63 | a | 75.07 | a | 85.52 | b | 81.77 | 82.67 | 64.68 | 53.60 | 45.55 | 62.36 | |||||||||
1963 | 45.35 | 54.82 | 51.35 | 51.60 | 68.07 | a | 71.60 | 77.54 | c | 81.97 | a | 81.33 | 63.23 | 50.20 | 46.50 | a | 61.96 | |||||||||
1964 | 40.84 | 49.24 | 50.52 | b | 58.97 | 64.10 | 71.87 | 80.44 | d | 82.76 | b | 76.77 | 73.57 | a | 48.81 | c | 43.07 | a | 61.75 | |||||||
1965 | 42.32 | 51.89 | 57.48 | 57.96 | b | 67.21 | c | 75.00 | c | 86.17 | b | 81.07 | d | 77.04 | c | 74.22 | d | 53.15 | d | 43.11 | c | 63.89 | ||||
1966 | 41.35 | 46.14 | 54.23 | a | 66.11 | c | 74.33 | a | 74.65 | d | 81.10 | b | 86.13 | a | 79.27 | 69.30 | a | 52.37 | 43.97 | 64.08 | ||||||
1967 | 44.26 | 52.32 | 50.55 | b | 48.92 | d | 70.37 | a | 76.73 | 88.20 | a | 92.48 | b | 85.70 | c | 65.84 | 57.07 | 38.18 | c | 64.22 | ||||||
1968 | 43.37 | a | 54.96 | b | 56.73 | a | 59.82 | b | 68.03 | 77.90 | 89.71 | 79.07 | b | 80.61 | b | 66.19 | 48.93 | 39.03 | 63.70 | |||||||
1969 | 37.48 | 43.07 | 54.57 | a | 59.47 | 73.20 | a | 77.78 | c | ----- | z | 85.10 | a | 80.47 | 60.55 | 57.50 | 47.00 | 61.47 | a | |||||||
1970 | 45.29 | 53.48 | a | 53.97 | a | 55.17 | a | 70.47 | a | 81.03 | a | 89.67 | a | 89.84 | 75.97 | a | 66.53 | a | 52.47 | 40.74 | 64.55 | |||||
1971 | 42.65 | 48.48 | a | 47.48 | 56.53 | 65.87 | 72.60 | 87.48 | 90.19 | 77.17 | 62.52 | 51.63 | 41.55 | 62.01 | ||||||||||||
1972 | 42.71 | 48.41 | 59.39 | 58.97 | 71.42 | 79.43 | 89.94 | 87.39 | 77.10 | 68.16 | 49.93 | 37.45 | 64.19 | |||||||||||||
1973 | 41.03 | 51.46 | 52.06 | 62.70 | 77.26 | 78.97 | 88.87 | 87.23 | 78.00 | 65.74 | 46.73 | 43.39 | 64.45 | |||||||||||||
1974 | 36.90 | a | 40.50 | h | 47.00 | h | 50.52 | e | ----- | z | ----- | z | 84.37 | d | 89.00 | e | 89.64 | e | 70.72 | m | 54.62 | d | 44.73 | a | 64.25 | e |
1975 | 42.17 | a | 46.82 | 49.23 | 53.97 | 73.52 | 76.80 | 86.61 | 82.29 | 86.40 | 62.94 | 49.00 | 43.81 | 62.80 | ||||||||||||
1976 | 46.06 | 49.93 | 54.65 | 58.50 | 74.25 | c | 76.50 | 89.29 | 80.61 | 82.52 | e | 72.94 | 58.03 | 48.97 | a | 66.02 | ||||||||||
1977 | 40.52 | 55.61 | 53.48 | 70.21 | b | 61.79 | b | 83.47 | 88.58 | 91.35 | 78.48 | a | 69.35 | 51.18 | b | 45.80 | a | 65.82 | ||||||||
1978 | 47.83 | b | 51.56 | a | 60.77 | 57.83 | 69.87 | a | 81.53 | 87.52 | 85.68 | 72.47 | 76.71 | ----- | z | 41.61 | 66.67 | a | ||||||||
1979 | 43.61 | 46.82 | 59.45 | 61.57 | 76.90 | a | 83.00 | 90.71 | 82.39 | 84.27 | 66.77 | 47.47 | 46.48 | 65.79 | ||||||||||||
1980 | 46.52 | 52.28 | 52.74 | 64.70 | 70.29 | 73.48 | a | 90.81 | 83.73 | a | 83.17 | 74.71 | 55.70 | 48.50 | a | 66.39 | ||||||||||
1981 | 49.94 | 51.96 | 57.23 | 67.00 | 69.60 | a | 79.93 | 90.39 | 93.87 | 83.80 | 63.68 | 53.90 | 45.43 | a | 67.23 | |||||||||||
1982 | 40.67 | g | 50.48 | g | 52.46 | g | 59.24 | e | 73.10 | j | 76.91 | h | 82.54 | g | 88.75 | c | 73.10 | i | 67.96 | e | 51.31 | d | 43.00 | h | 66.81 | h |
1983 | 46.68 | c | 49.73 | f | 52.61 | 56.64 | e | 74.00 | h | 76.26 | g | 81.12 | f | 87.13 | h | 77.64 | h | 69.35 | e | 47.85 | d | ----- | z | 54.62 | g | |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.69 | d | 91.27 | e | 92.92 | f | 85.90 | j | 64.59 | i | 50.61 | g | 44.89 | c | 70.62 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.34 | 49.99 | 53.89 | 59.19 | 69.18 | 77.53 | 87.29 | 85.79 | 80.11 | 67.81 | 52.13 | 43.83 | 64.11 | |||||||||||||
S.D. | 3.47 | 3.46 | 3.66 | 5.19 | 4.91 | 3.57 | 3.61 | 4.19 | 4.35 | 4.21 | 3.57 | 3.08 | 1.58 | |||||||||||||
SKEW | 0.14 | -0.14 | 0.22 | 0.06 | -0.20 | -0.03 | -1.32 | 0.25 | 0.20 | 0.44 | 0.51 | -0.44 | 0.26 | |||||||||||||
MAX | 49.94 | 55.61 | 60.77 | 70.21 | 77.26 | 83.47 | 91.27 | 93.87 | 89.64 | 76.71 | 59.80 | 48.97 | 67.23 | |||||||||||||
MIN | 36.90 | 43.07 | 47.48 | 48.92 | 59.63 | 71.60 | 77.54 | 79.07 | 72.47 | 60.55 | 46.73 | 37.45 | 61.75 | |||||||||||||
YRS | 23 | 21 | 22 | 24 | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 19 |