YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.06 | l | 52.48 | 52.48 | k | |
1904 | 50.10 | 62.07 | 65.81 | 76.33 | 80.77 | 90.43 | 90.16 | 85.74 | 78.50 | 68.06 | 63.20 | 49.39 | 71.71 | |||||||||||||
1905 | 50.39 | 48.82 | 55.81 | 64.60 | 78.39 | 91.17 | 90.65 | 85.90 | 77.97 | 69.26 | 53.37 | 42.35 | 67.39 | |||||||||||||
1906 | 48.39 | 67.04 | 66.13 | a | 69.13 | 80.77 | 93.27 | 87.16 | 79.65 | 78.97 | 70.84 | 56.47 | ----- | z | 72.53 | a | ||||||||||
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.91 | s | 55.29 | 55.29 | k | |
1960 | 48.32 | 53.21 | 68.00 | 74.20 | 80.94 | 91.83 | 91.29 | 89.87 | 85.33 | 70.94 | 62.53 | 57.31 | b | 72.81 | ||||||||||||
1961 | 56.42 | 59.96 | 63.65 | 72.90 | 81.97 | 93.10 | 90.61 | 86.32 | 80.59 | a | 73.42 | 57.17 | 50.94 | 72.25 | ||||||||||||
1962 | 52.39 | 58.39 | 56.55 | 75.53 | 79.35 | 86.77 | 87.19 | 91.84 | 82.23 | 73.19 | 65.30 | 56.71 | 72.12 | |||||||||||||
1963 | 51.00 | 59.86 | 62.74 | 70.41 | a | 82.23 | 87.37 | 91.23 | 81.13 | 81.80 | 76.19 | 61.67 | 57.97 | 71.97 | ||||||||||||
1964 | 52.29 | 54.17 | 58.65 | 66.30 | 79.42 | 86.76 | a | 88.77 | a | 87.00 | 77.97 | 76.68 | 59.80 | 52.94 | 70.06 | |||||||||||
1965 | 55.61 | 54.86 | 58.94 | 68.40 | 76.06 | 83.53 | 87.52 | 86.55 | 79.27 | 78.10 | 64.13 | 52.00 | 70.41 | |||||||||||||
1966 | 49.33 | a | 50.64 | 65.45 | 72.30 | 81.81 | 87.77 | 92.68 | 85.39 | 79.97 | 72.81 | 65.53 | 54.23 | 71.49 | ||||||||||||
1967 | 57.42 | 61.46 | 68.13 | 69.33 | 79.19 | 85.43 | 89.94 | 83.52 | 78.87 | 76.19 | 66.20 | 48.23 | 71.99 | |||||||||||||
1968 | 53.32 | 60.31 | 61.13 | a | 66.83 | 78.90 | 88.90 | a | 85.19 | 81.23 | 82.47 | 76.94 | 60.40 | 52.23 | 70.65 | |||||||||||
1969 | 55.52 | 55.64 | 59.42 | 72.60 | 79.61 | 88.33 | 92.33 | a | 90.94 | 81.63 | 70.65 | 61.27 | 58.29 | 72.19 | ||||||||||||
1970 | 54.61 | 60.43 | 58.32 | 66.47 | 81.55 | 89.07 | 92.00 | 88.71 | 81.40 | 67.06 | 64.70 | 56.84 | 71.76 | |||||||||||||
1971 | 58.32 | 61.54 | 68.84 | 71.40 | 77.35 | 89.73 | 92.55 | 84.10 | 82.40 | 67.00 | 61.33 | 48.39 | 71.91 | |||||||||||||
1972 | 58.03 | 62.45 | 73.68 | 74.60 | 80.03 | 85.63 | 92.10 | 85.90 | 80.27 | 68.13 | 57.07 | 54.03 | 72.66 | |||||||||||||
1973 | 49.29 | 52.64 | 55.77 | 65.17 | 78.84 | 87.63 | 87.16 | 87.26 | 85.27 | 76.65 | 64.17 | 58.74 | 70.72 | |||||||||||||
1974 | 52.13 | 59.39 | 66.65 | 70.90 | 82.68 | 94.30 | 87.35 | 85.45 | 77.27 | 69.52 | 62.37 | 52.10 | 71.67 | |||||||||||||
1975 | 54.13 | 56.25 | 59.65 | 65.67 | 75.77 | 87.93 | 85.45 | 89.39 | 78.87 | 75.35 | 66.07 | 58.19 | 71.06 | |||||||||||||
1976 | 55.61 | 62.86 | 63.68 | 71.07 | 79.19 | 89.27 | 87.06 | 85.52 | 80.07 | 71.55 | 67.03 | 57.74 | 72.55 | |||||||||||||
1977 | 54.16 | 64.96 | 64.32 | 72.93 | 79.35 | 87.67 | 88.16 | 87.03 | 83.87 | 77.03 | 68.63 | 63.13 | 74.27 | |||||||||||||
1978 | 53.32 | 55.39 | 63.61 | 72.50 | ----- | z | 91.37 | 92.61 | 86.77 | 82.03 | ----- | z | ----- | z | ----- | z | 74.70 | d | ||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.06 | l | 90.87 | 83.52 | 83.53 | 77.06 | 58.93 | 57.07 | a | 75.16 | f | |||||
1980 | 52.87 | 58.45 | 58.71 | 69.20 | 73.97 | 91.70 | 91.61 | 86.03 | 83.90 | 72.45 | 63.27 | 62.23 | 72.03 | |||||||||||||
1981 | 57.71 | 61.21 | 58.43 | a | 72.57 | 70.00 | 80.77 | 78.45 | 85.65 | 81.03 | 70.13 | 64.23 | 59.77 | 70.00 | ||||||||||||
1982 | 53.87 | 56.67 | a | 61.58 | 71.10 | 76.50 | a | 87.30 | 88.77 | 84.39 | 80.90 | 73.10 | a | 56.93 | 49.35 | 70.04 | ||||||||||
1983 | 54.35 | 56.15 | a | 59.07 | a | 63.48 | a | 76.81 | 85.40 | 87.97 | 84.81 | 81.23 | 69.48 | 58.59 | a | 54.27 | a | 69.30 | ||||||||
1984 | 53.55 | 59.72 | d | 66.22 | d | 69.96 | c | 84.93 | a | 85.15 | c | 86.52 | 82.10 | 79.90 | 62.59 | b | 60.40 | 53.81 | j | 71.91 | a | |||||
1985 | 49.06 | 54.93 | 61.48 | 73.46 | b | 78.21 | b | 89.47 | 97.09 | t | 79.17 | y | 76.59 | c | 68.88 | n | 60.23 | 52.38 | o | 67.93 | d | |||||
1986 | 56.57 | x | 57.50 | 66.17 | a | 73.03 | 78.94 | 85.96 | c | 85.50 | a | ----- | z | 81.50 | p | ----- | z | 58.60 | o | 51.52 | 71.23 | e | ||||
1987 | 54.20 | a | 53.86 | 58.00 | 72.27 | 73.09 | i | 87.60 | 87.97 | 84.48 | 80.43 | 75.97 | 59.33 | 50.32 | 69.49 | a | ||||||||||
1988 | 51.90 | 59.59 | 64.19 | 68.47 | 79.26 | 86.47 | 87.71 | 83.26 | 79.62 | a | 75.90 | 62.67 | 52.00 | 70.92 | ||||||||||||
1989 | 51.77 | 59.86 | 68.84 | 78.47 | 81.58 | 88.43 | 89.61 | 86.03 | ----- | z | ----- | z | ----- | z | ----- | z | 75.57 | d | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 53.21 | 58.13 | 62.74 | 70.67 | 79.15 | 88.30 | 88.88 | 85.66 | 80.78 | 72.49 | 61.77 | 54.20 | 71.36 | |||||||||||||
S.D. | 2.86 | 4.08 | 4.43 | 3.58 | 2.88 | 2.93 | 2.99 | 2.75 | 2.21 | 3.91 | 3.58 | 4.55 | 1.37 | |||||||||||||
SKEW | 0.01 | -0.17 | 0.31 | -0.13 | -0.97 | -0.08 | -1.20 | 0.11 | 0.26 | -0.47 | -0.25 | -0.24 | -0.75 | |||||||||||||
MAX | 58.32 | 67.04 | 73.68 | 78.47 | 84.93 | 94.30 | 92.68 | 91.84 | 85.33 | 78.10 | 68.63 | 63.13 | 74.27 | |||||||||||||
MIN | 48.32 | 48.82 | 55.77 | 63.48 | 70.00 | 80.77 | 78.45 | 79.65 | 76.59 | 62.59 | 53.37 | 42.35 | 67.39 | |||||||||||||
YRS | 31 | 32 | 32 | 32 | 30 | 32 | 32 | 31 | 31 | 29 | 30 | 30 | 25 |