YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | 62.96 | e | 69.77 | 82.57 | 81.90 | 79.94 | 76.60 | 63.21 | g | ----- | z | ----- | z | 75.62 | f | |||||
1919 | 40.36 | f | 40.71 | d | 49.86 | i | 61.76 | a | 69.87 | a | ----- | z | ----- | z | ----- | z | 64.83 | ----- | z | ----- | z | ----- | z | 59.29 | h | |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | 53.52 | 53.52 | k | |
1959 | 47.90 | 47.64 | 55.83 | a | 66.43 | 74.74 | 84.90 | 84.77 | 80.26 | h | 79.77 | 68.58 | e | 54.34 | a | 46.52 | 64.68 | a | ||||||||
1960 | 39.10 | 40.52 | 55.00 | 59.60 | 65.90 | a | 84.13 | 86.35 | 86.97 | 80.57 | 63.87 | a | 55.83 | 41.19 | 63.25 | |||||||||||
1961 | 45.87 | a | 46.11 | 53.53 | a | 63.00 | 74.37 | a | 86.57 | b | 86.23 | 83.00 | a | 75.03 | 68.65 | 49.96 | b | 42.16 | 64.54 | |||||||
1962 | 43.00 | 49.68 | ----- | z | 67.83 | a | 66.97 | 75.33 | 84.16 | 85.58 | 75.63 | 66.97 | 50.47 | 50.33 | a | 65.09 | a | |||||||||
1963 | 39.47 | a | 50.19 | a | 53.90 | 66.33 | 73.37 | a | 76.90 | 80.77 | a | 65.94 | 79.71 | p | 77.20 | u | ----- | z | ----- | z | 63.36 | d | ||||
1964 | 35.52 | ----- | z | 38.67 | a | 47.48 | a | 73.65 | 81.18 | b | 83.58 | 79.77 | a | 75.41 | a | 72.10 | a | 53.14 | b | 47.10 | k | 64.05 | b | |||
1965 | 45.17 | a | 46.25 | 56.38 | w | 65.37 | 69.52 | 78.23 | 82.48 | 82.07 | d | 72.87 | 69.65 | 57.57 | 46.81 | j | 66.92 | b | ||||||||
1966 | 40.81 | ----- | z | ----- | z | 59.80 | 70.27 | a | 77.31 | a | 82.59 | b | 80.20 | a | 71.90 | 65.55 | 51.07 | c | 38.74 | 63.82 | b | |||||
1967 | 43.39 | 49.75 | 57.26 | 61.72 | a | 69.93 | a | 75.73 | 81.74 | 76.81 | 71.17 | 66.19 | 54.50 | 37.90 | 62.17 | |||||||||||
1968 | 37.73 | a | 44.66 | 47.87 | a | 54.48 | a | 67.61 | 80.21 | a | 79.77 | 75.30 | a | 71.86 | a | 63.29 | 41.77 | d | ----- | z | 60.41 | a | ||||
1969 | 38.47 | a | 40.79 | ----- | z | 62.77 | 71.55 | 78.50 | 83.65 | 82.10 | 75.20 | 59.74 | ----- | z | ----- | z | 65.86 | c | ||||||||
1970 | ----- | z | 48.57 | 47.16 | 57.43 | 73.03 | 79.50 | 83.70 | a | 81.87 | 75.83 | 58.90 | 55.70 | c | 46.10 | 64.35 | a | |||||||||
1971 | 47.26 | ----- | z | 53.20 | a | 61.23 | 70.19 | 82.37 | 84.00 | a | 80.77 | 74.70 | 59.03 | 50.87 | 37.52 | 63.74 | a | |||||||||
1972 | 44.20 | a | 50.34 | 63.32 | 65.73 | 73.61 | 79.00 | 85.74 | 79.84 | 74.00 | 62.52 | 44.97 | 42.00 | 63.77 | ||||||||||||
1973 | 36.13 | 41.89 | 46.90 | 55.37 | 70.42 | 80.67 | 81.61 | 80.16 | 75.63 | 67.68 | 54.87 | ----- | z | 62.85 | a | |||||||||||
1974 | 41.48 | 46.14 | 61.23 | a | 64.17 | 77.10 | 86.90 | 81.29 | 79.84 | 75.30 | 63.42 | 52.61 | b | 40.29 | 64.15 | |||||||||||
1975 | 36.20 | p | 44.43 | 51.94 | 59.87 | 70.26 | 82.17 | 81.19 | 80.55 | 70.00 | 65.90 | a | 57.85 | q | 41.16 | 64.75 | b | |||||||||
1976 | 39.77 | 49.34 | 45.77 | 59.33 | 71.48 | 82.40 | 84.03 | a | 78.68 | 72.87 | 60.35 | 51.53 | 34.74 | 60.86 | ||||||||||||
1977 | 35.74 | 42.64 | 42.32 | 65.00 | f | 69.97 | 83.80 | 82.77 | 80.42 | 74.43 | 65.86 | b | 50.27 | h | 47.00 | a | 62.50 | b | ||||||||
1978 | 39.16 | 40.54 | 53.94 | 65.03 | a | 67.74 | 82.77 | 86.06 | 79.52 | 73.10 | 66.80 | a | 49.17 | a | 35.39 | 61.60 | ||||||||||
1979 | 33.87 | 37.57 | 50.58 | 59.32 | b | 69.84 | 79.72 | a | 85.97 | 79.16 | 76.30 | 68.10 | a | 43.42 | k | 44.59 | n | 64.04 | b | |||||||
1980 | 37.53 | a | 44.61 | a | 50.10 | 58.53 | 68.00 | 84.73 | 87.71 | 80.60 | a | 74.73 | 61.65 | 51.97 | a | 49.84 | 62.50 | |||||||||
1981 | 48.39 | 51.46 | 50.16 | 67.72 | a | 70.39 | 85.97 | 81.00 | 80.06 | 74.00 | 61.48 | 54.40 | 44.94 | 64.16 | ||||||||||||
1982 | ----- | z | 37.37 | a | 49.90 | a | 60.17 | a | 69.23 | a | 81.30 | 82.13 | 77.13 | a | 70.96 | b | 59.39 | 48.03 | a | 39.40 | a | 61.37 | a | |||
1983 | 39.00 | a | 43.04 | a | 48.71 | 50.59 | c | 67.87 | 76.11 | b | 80.81 | 77.87 | 73.23 | 60.48 | 51.33 | 39.53 | a | 59.05 | ||||||||
1984 | 37.87 | a | 45.57 | a | 52.23 | 57.97 | 75.06 | 78.66 | a | 81.55 | 78.90 | 73.00 | 54.24 | b | 50.07 | 41.13 | 60.52 | |||||||||
1985 | 37.65 | 36.86 | 52.61 | 64.13 | 71.61 | 84.23 | 84.90 | 81.97 | 71.37 | 62.48 | 49.77 | 44.84 | 61.87 | |||||||||||||
1986 | 51.35 | 48.21 | 57.32 | 62.87 | 72.68 | c | 79.50 | 81.00 | 81.61 | 72.77 | 61.97 | 51.17 | a | 42.55 | 63.58 | |||||||||||
1987 | 41.00 | 42.67 | a | 49.35 | 66.04 | e | 67.45 | 80.83 | 84.07 | b | 78.32 | 73.83 | a | 67.60 | a | 51.23 | 42.20 | a | 62.05 | |||||||
1988 | 40.55 | 49.96 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.26 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.01 | 44.91 | 51.55 | 61.17 | 70.76 | 81.07 | 83.25 | 79.83 | 73.90 | 64.02 | 51.51 | 42.56 | 62.43 | |||||||||||||
S.D. | 4.42 | 4.31 | 5.43 | 4.81 | 2.67 | 3.23 | 2.06 | 3.57 | 2.90 | 4.07 | 3.48 | 4.75 | 1.59 | |||||||||||||
SKEW | 0.61 | -0.27 | -0.09 | -0.97 | 0.38 | 0.02 | 0.34 | -1.75 | -0.47 | -0.21 | -0.83 | 0.51 | -0.53 | |||||||||||||
MAX | 51.35 | 51.46 | 63.32 | 67.83 | 77.10 | 86.90 | 87.71 | 86.97 | 80.57 | 72.10 | 57.57 | 53.52 | 64.54 | |||||||||||||
MIN | 33.87 | 36.86 | 38.67 | 47.48 | 65.90 | 75.33 | 79.77 | 65.94 | 64.83 | 54.24 | 41.77 | 34.74 | 59.05 | |||||||||||||
YRS | 27 | 28 | 25 | 30 | 31 | 30 | 30 | 29 | 30 | 28 | 24 | 23 | 14 |