YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 44.60 | 23.10 | 33.85 | j | ||
1959 | 19.19 | 25.93 | 42.74 | 58.40 | 71.77 | 81.00 | 84.39 | 84.58 | 71.73 | 52.62 | e | 30.95 | i | 36.77 | 57.19 | a | ||||||||||
1960 | 24.74 | 27.00 | 33.68 | 56.97 | 70.61 | 78.20 | 86.52 | 85.16 | 73.07 | 61.77 | a | 42.07 | a | ----- | z | 58.16 | a | |||||||||
1961 | 17.50 | m | 33.54 | 42.35 | 49.48 | c | 68.58 | 82.00 | 83.84 | 85.16 | 70.13 | 60.87 | a | 40.60 | 25.81 | 58.40 | a | |||||||||
1962 | 17.81 | 22.32 | 36.74 | 55.87 | 74.30 | a | 80.60 | 82.94 | 85.00 | a | 70.97 | a | 64.52 | 44.27 | 29.48 | 55.40 | ||||||||||
1963 | 14.39 | 25.48 | c | 46.00 | 61.70 | 71.23 | 86.45 | a | 89.10 | a | 83.97 | 76.53 | 71.97 | 49.50 | 19.26 | 57.96 | ||||||||||
1964 | 29.55 | 35.48 | 38.57 | a | 59.27 | 77.67 | a | 83.07 | b | 89.84 | 81.13 | 70.77 | 61.32 | 45.20 | 23.52 | 57.95 | ||||||||||
1965 | 21.17 | a | 24.21 | 29.77 | 51.50 | h | ----- | z | ----- | z | 81.52 | 80.03 | 62.23 | 62.19 | 41.97 | 34.71 | 48.65 | c | ||||||||
1966 | 13.19 | 26.75 | 45.84 | 52.10 | 68.16 | 81.33 | 87.94 | 79.48 | 73.00 | 60.29 | 39.93 | 27.23 | 54.60 | |||||||||||||
1967 | 25.68 | 21.96 | 40.29 | 55.13 | 65.03 | 77.80 | 81.81 | 79.97 | 74.03 | 58.71 | 40.10 | 31.65 | 54.35 | |||||||||||||
1968 | 24.77 | 25.79 | 51.45 | 61.80 | 65.13 | 77.90 | 82.39 | 81.71 | 71.60 | ----- | z | 41.73 | 26.43 | a | 55.52 | a | ||||||||||
1969 | 18.97 | 29.11 | 34.97 | 60.00 | 73.16 | 72.13 | 83.19 | 87.42 | 75.27 | 55.90 | 42.10 | 28.84 | 55.09 | |||||||||||||
1970 | 15.67 | a | 28.82 | 35.81 | 57.77 | 70.23 | 82.47 | 87.68 | 83.97 | 71.57 | 57.68 | 38.40 | 25.94 | 54.66 | ||||||||||||
1971 | 15.29 | 26.89 | 36.90 | 60.47 | 69.13 | a | 83.57 | 80.53 | a | 81.74 | 73.67 | 63.48 | 41.53 | 27.23 | 55.04 | |||||||||||
1972 | 17.45 | 22.03 | 36.19 | 52.23 | 75.35 | 81.10 | 81.55 | 80.32 | 69.97 | 54.84 | 39.43 | 21.77 | 52.69 | |||||||||||||
1973 | 26.71 | 30.25 | 48.77 | 55.03 | 67.29 | 82.40 | 84.86 | c | 83.16 | 68.40 | 63.00 | 41.73 | 24.52 | 56.34 | ||||||||||||
1974 | 23.55 | b | 28.18 | 37.74 | 58.30 | 64.68 | 77.28 | a | 89.68 | 79.77 | 69.90 | 63.00 | 42.07 | 32.87 | 55.58 | |||||||||||
1975 | 24.94 | 25.79 | 32.45 | 48.37 | 72.77 | 78.55 | a | 87.52 | 81.26 | 69.30 | 64.97 | 47.60 | 27.29 | 55.07 | ||||||||||||
1976 | 21.03 | 35.97 | 42.35 | 63.47 | 72.03 | 84.33 | ----- | z | 86.65 | 74.77 | 55.97 | 36.33 | 21.06 | 54.00 | a | |||||||||||
1977 | 10.32 | 32.50 | 47.29 | 65.57 | 80.39 | 79.17 | 86.52 | 78.32 | 70.60 | 58.61 | 40.07 | 22.61 | 56.00 | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.81 | o | 41.66 | a | 22.52 | 32.09 | j | |
1979 | 11.90 | b | 19.24 | c | 35.81 | 53.47 | ----- | z | 78.27 | ----- | z | 77.53 | a | 73.67 | 58.00 | 38.93 | 33.90 | 48.07 | b | |||||||
1980 | ----- | z | ----- | z | 36.42 | 62.17 | ----- | z | 79.93 | a | ----- | z | ----- | z | ----- | z | 54.42 | 45.47 | 27.55 | 50.99 | f | |||||
1981 | 29.55 | 32.86 | ----- | z | ----- | z | 69.07 | a | 79.60 | 85.38 | w | 78.62 | b | 70.57 | 54.84 | 47.53 | 24.10 | 54.08 | c | |||||||
1982 | 12.97 | b | 24.50 | 36.77 | e | 54.07 | 72.07 | a | 76.28 | a | ----- | z | 82.67 | a | 71.00 | a | 58.84 | 39.34 | a | 32.97 | 51.04 | a | ||||
1983 | 27.67 | d | 32.39 | 41.45 | 51.11 | b | 66.17 | a | 78.24 | a | 88.50 | a | 86.65 | 72.86 | a | 58.65 | 40.71 | b | 13.55 | 54.83 | ||||||
1984 | 21.38 | b | 36.59 | 34.26 | 57.69 | a | 68.19 | 79.97 | a | 83.48 | 83.90 | a | 68.47 | 60.47 | a | 43.39 | b | 28.90 | b | 55.56 | ||||||
1985 | 20.70 | a | 25.36 | 46.58 | e | 63.97 | a | 74.27 | a | 76.07 | c | 85.19 | 76.30 | a | 69.73 | 58.17 | b | 33.17 | 17.97 | 53.96 | ||||||
1986 | 27.00 | a | 25.04 | 44.68 | 61.79 | a | 71.73 | a | 80.75 | b | 83.77 | 78.53 | a | 69.27 | 58.77 | a | 39.14 | b | 30.66 | b | 55.93 | |||||
1987 | 31.00 | b | 43.68 | c | 48.57 | a | 68.69 | a | 76.68 | 85.93 | a | 86.27 | a | 79.87 | a | 73.14 | a | 53.97 | a | 47.68 | b | 32.37 | a | 60.65 | ||
1988 | 21.65 | 25.39 | a | 45.71 | ----- | z | 80.34 | b | ----- | z | 91.43 | a | 87.59 | b | 75.83 | a | 57.66 | b | 43.11 | b | 28.80 | a | 55.75 | b | ||
1989 | 32.32 | 21.93 | 36.48 | 57.80 | 71.00 | 79.70 | 87.52 | 82.87 | a | 72.87 | 63.97 | 38.97 | 19.81 | 55.44 | ||||||||||||
1990 | 36.29 | 35.00 | 47.35 | 61.27 | 68.94 | 82.67 | 83.61 | 82.83 | a | 76.40 | 60.90 | 49.07 | 28.32 | 59.39 | ||||||||||||
1991 | 24.55 | 37.50 | 45.90 | 62.50 | 71.61 | 83.93 | 83.03 | 83.90 | 71.80 | 61.16 | 33.80 | 31.84 | 57.63 | |||||||||||||
1992 | 31.03 | 36.90 | 44.90 | 54.34 | a | 76.77 | 80.70 | 79.06 | 79.52 | 73.45 | a | 60.94 | 38.07 | a | 30.39 | 57.17 | ||||||||||
1993 | 26.81 | 29.11 | a | 41.32 | 56.17 | 70.52 | b | 76.97 | a | 81.68 | 83.71 | 67.27 | 59.71 | 39.53 | 29.58 | 55.20 | ||||||||||
1994 | 16.94 | 25.50 | 47.45 | 59.97 | 75.61 | 84.03 | 81.77 | 81.00 | 76.53 | 64.10 | a | 48.73 | 34.39 | 58.00 | ||||||||||||
1995 | 26.68 | 30.64 | 45.48 | 53.33 | 70.35 | 84.43 | 85.55 | 85.81 | 73.67 | 59.55 | 35.67 | 27.71 | 56.57 | |||||||||||||
1996 | 22.10 | 30.39 | a | 37.48 | 55.17 | a | 68.32 | 80.20 | 81.65 | 83.48 | 72.77 | 60.58 | 35.33 | 24.40 | a | 54.32 | ||||||||||
1997 | 22.87 | 32.36 | 40.87 | 57.63 | 67.03 | 82.76 | a | 81.27 | a | 80.74 | 74.97 | a | 62.71 | 37.23 | 35.29 | 56.31 | ||||||||||
1998 | 29.39 | 40.71 | 42.74 | 64.23 | 79.26 | 75.97 | a | 85.77 | 83.97 | 82.03 | 62.48 | 46.80 | 37.16 | 60.88 | ||||||||||||
1999 | 22.16 | 38.18 | 46.35 | 61.23 | 71.84 | 78.59 | a | 88.68 | 83.33 | a | 75.13 | 64.42 | 55.10 | a | 37.77 | a | 60.23 | |||||||||
2000 | 27.97 | 38.90 | 54.39 | 60.57 | 73.58 | 78.30 | 85.13 | 85.45 | 76.33 | 67.35 | 40.90 | 18.94 | 58.98 | |||||||||||||
2001 | 32.26 | 26.79 | 40.87 | 61.57 | 71.94 | 80.23 | 87.16 | 86.74 | 73.87 | 61.65 | 58.90 | 38.16 | 60.01 | |||||||||||||
2002 | 36.16 | 40.57 | 37.10 | 58.03 | a | 67.90 | 82.97 | 89.16 | 81.42 | 77.13 | 53.00 | 44.33 | 37.42 | 58.77 | ||||||||||||
2003 | 28.19 | 29.21 | 45.32 | 61.43 | 71.87 | 81.46 | b | 86.48 | 89.67 | a | 76.07 | 64.10 | 43.77 | 35.13 | 59.39 | |||||||||||
2004 | 23.16 | 34.34 | 46.84 | 65.50 | 68.71 | 78.70 | 84.06 | 79.26 | 80.00 | 62.13 | 47.10 | a | 31.00 | 58.40 | ||||||||||||
2005 | 23.84 | 35.96 | 42.81 | 63.93 | 65.74 | 82.67 | 87.29 | 82.58 | 77.93 | 63.61 | 47.87 | 27.61 | 58.49 | |||||||||||||
2006 | 36.19 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.19 | k | |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.71 | 30.16 | 41.64 | 58.59 | 71.33 | 80.42 | 85.11 | 82.59 | 72.89 | 60.40 | 42.56 | 28.26 | 56.77 | |||||||||||||
S.D. | 6.56 | 5.89 | 5.50 | 4.59 | 4.02 | 2.92 | 2.99 | 2.99 | 3.52 | 3.89 | 5.09 | 5.85 | 2.15 | |||||||||||||
SKEW | -0.05 | 0.34 | 0.00 | -0.20 | 0.49 | -0.24 | 0.08 | 0.11 | -0.11 | 0.17 | 0.81 | -0.24 | 0.30 | |||||||||||||
MAX | 36.29 | 43.68 | 54.39 | 68.69 | 80.39 | 86.45 | 91.43 | 89.67 | 82.03 | 71.97 | 58.90 | 38.16 | 60.88 | |||||||||||||
MIN | 10.32 | 19.24 | 29.77 | 48.37 | 64.68 | 72.13 | 79.06 | 76.30 | 62.23 | 52.62 | 33.17 | 13.55 | 52.69 | |||||||||||||
YRS | 45 | 45 | 45 | 43 | 43 | 44 | 41 | 45 | 45 | 45 | 47 | 47 | 35 |