YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.74 | ----- | z | ----- | z | ----- | z | 68.79 | a | 60.67 | a | 73.73 | i | |
1924 | 48.09 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 91.68 | f | 84.87 | 72.55 | 60.30 | 53.73 | a | 67.86 | h | |||
1959 | 42.29 | 50.07 | 56.29 | 67.43 | 77.81 | 90.17 | 92.65 | 91.65 | 84.10 | 67.19 | 58.60 | 50.74 | 69.08 | |||||||||||||
1960 | 40.40 | a | 33.97 | 55.04 | c | 70.20 | 76.17 | a | 88.03 | 89.45 | 93.39 | 82.93 | 69.61 | 60.87 | 42.58 | 66.89 | ||||||||||
1961 | 50.53 | a | 51.00 | a | 56.39 | 66.90 | 78.00 | 86.23 | 89.90 | 88.58 | 79.87 | 72.71 | 53.72 | a | 44.32 | 68.18 | ||||||||||
1962 | 41.74 | 53.89 | 55.77 | 69.00 | 82.00 | 86.37 | c | 90.42 | 95.06 | 83.93 | 75.16 | 59.33 | 53.13 | 70.49 | ||||||||||||
1963 | 39.45 | 54.25 | 59.29 | 74.07 | 84.00 | 92.03 | 96.16 | 89.77 | 85.73 | 77.87 | 62.33 | 46.23 | 71.77 | |||||||||||||
1964 | 48.07 | a | 40.93 | 54.29 | 67.00 | 78.84 | 87.23 | 96.35 | 91.45 | 82.28 | a | 75.00 | 55.77 | 51.20 | a | 69.03 | ||||||||||
1965 | 53.81 | 48.86 | 46.20 | a | 70.30 | 77.47 | a | 83.77 | 91.32 | 87.53 | a | 78.10 | 74.13 | 64.60 | 55.00 | a | 69.26 | |||||||||
1966 | 42.10 | 42.07 | 63.87 | 69.40 | 81.61 | 88.93 | a | 94.90 | 86.77 | a | 82.83 | 70.48 | 61.93 | 47.32 | 69.35 | |||||||||||
1967 | 52.13 | 55.44 | a | 66.19 | 73.10 | 74.68 | 83.27 | 90.52 | 87.52 | 81.33 | 76.42 | 60.63 | 41.16 | 70.20 | ||||||||||||
1968 | 47.87 | 52.29 | a | 59.48 | 64.62 | a | 74.60 | a | 90.50 | 91.13 | 87.87 | 83.30 | 75.94 | 54.52 | a | 48.00 | a | 69.18 | ||||||||
1969 | 55.23 | 53.89 | a | 46.37 | a | 68.97 | 76.00 | 81.50 | 93.62 | b | 93.06 | 82.93 | 60.16 | 57.72 | a | 49.32 | 68.23 | |||||||||
1970 | 49.10 | a | 57.57 | 51.32 | 64.37 | 79.55 | 86.80 | 92.71 | 93.23 | 83.03 | 63.81 | 57.23 | 54.60 | a | 69.44 | |||||||||||
1971 | 48.93 | a | 49.29 | 63.13 | 67.34 | a | 75.23 | 91.38 | a | 91.42 | 88.67 | a | 79.47 | 69.84 | 59.00 | 49.65 | 69.44 | |||||||||
1972 | 50.81 | 59.14 | 67.55 | 70.61 | b | 76.65 | 90.67 | 89.65 | 88.70 | a | 80.97 | 70.61 | 45.07 | 42.13 | a | 69.38 | ||||||||||
1973 | 42.77 | a | 51.07 | 54.39 | 59.17 | 73.74 | 88.00 | a | 91.17 | a | 93.20 | a | 78.03 | ----- | z | 61.23 | 48.33 | a | 67.37 | a | ||||||
1974 | 44.76 | b | 54.27 | b | 64.32 | 71.00 | 83.39 | 88.83 | 95.45 | 88.87 | 81.70 | 72.71 | 58.10 | 46.29 | 70.81 | |||||||||||
1975 | 49.27 | a | 51.64 | 60.00 | 68.23 | 76.84 | 87.73 | 92.06 | 94.60 | a | 80.57 | 77.87 | a | 55.97 | 53.84 | 70.72 | ||||||||||
1976 | 49.47 | a | 60.17 | 61.23 | 70.83 | 77.35 | 90.83 | 94.48 | 90.26 | 81.17 | 66.06 | 55.93 | 49.68 | 70.62 | ||||||||||||
1977 | 48.45 | 54.59 | a | 60.23 | 71.53 | 80.16 | 93.43 | 95.13 | 89.42 | 87.43 | 73.48 | 62.93 | 54.16 | 72.58 | ||||||||||||
1978 | 41.57 | a | 42.89 | a | 61.10 | 73.38 | a | 77.13 | 90.57 | 97.27 | a | 92.55 | ----- | z | 74.53 | a | 56.11 | b | 46.93 | a | 68.55 | a | ||||
1979 | ----- | z | 39.41 | a | ----- | z | ----- | z | ----- | z | 89.43 | g | ----- | z | ----- | z | 89.75 | b | ----- | z | ----- | z | 52.41 | i | 64.58 | j |
1980 | 41.68 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.73 | ----- | z | ----- | z | ----- | z | 64.21 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.69 | 50.32 | 58.12 | 68.87 | 78.06 | 88.31 | 92.74 | 90.61 | 82.78 | 71.81 | 58.67 | 49.50 | 69.70 | |||||||||||||
S.D. | 4.71 | 6.84 | 5.88 | 3.50 | 2.92 | 3.08 | 2.41 | 2.58 | 2.93 | 4.68 | 4.67 | 4.84 | 1.34 | |||||||||||||
SKEW | 0.04 | -0.80 | -0.48 | -0.95 | 0.59 | -0.53 | 0.38 | 0.21 | 0.48 | -0.88 | -0.64 | 0.20 | 0.16 | |||||||||||||
MAX | 55.23 | 60.17 | 67.55 | 74.07 | 84.00 | 93.43 | 97.27 | 95.06 | 89.75 | 77.87 | 68.79 | 60.67 | 72.58 | |||||||||||||
MIN | 39.45 | 33.97 | 46.20 | 59.17 | 73.74 | 81.50 | 89.45 | 86.77 | 78.03 | 60.16 | 45.07 | 41.16 | 66.89 | |||||||||||||
YRS | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 20 | 22 | 20 | 22 | 22 | 18 |