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 | 18.96 | h | ----- | z |
1955 | 7.40 | a | 4.74 | a | 17.68 | 41.73 | 50.00 | 55.23 | 65.94 | 62.80 | a | 49.80 | 38.45 | 17.40 | 3.45 | 34.55 | ||||||||||
1956 | 0.00 | 3.07 | 17.80 | a | 29.10 | 48.65 | 58.17 | f | 56.32 | 55.76 | b | 41.63 | 39.62 | b | 21.60 | 11.97 | 29.59 | a | ||||||||
1957 | -2.06 | 9.85 | a | 19.97 | a | 34.87 | 45.58 | 56.20 | 65.48 | 59.53 | a | 46.73 | 38.94 | 27.50 | 18.46 | c | 35.09 | |||||||||
1958 | 16.37 | a | 5.14 | 23.87 | 36.43 | 47.87 | 50.89 | b | 59.33 | a | 60.48 | 52.53 | 41.74 | 25.73 | 5.00 | b | 35.45 | |||||||||
1959 | 0.37 | a | 4.79 | 24.87 | 36.00 | 51.48 | 60.53 | 61.10 | 64.94 | 52.50 | 36.52 | 18.00 | 23.48 | 36.21 | ||||||||||||
1960 | 9.45 | 11.24 | 10.55 | 37.67 | 47.06 | 55.13 | 61.42 | 62.74 | 53.70 | 39.77 | 28.07 | 11.19 | 35.67 | |||||||||||||
1961 | 7.93 | a | 16.14 | 26.77 | 31.83 | a | 44.65 | 56.60 | 58.74 | 61.03 | 51.27 | 40.97 | 26.23 | 9.03 | 35.93 | |||||||||||
1962 | 1.94 | 9.32 | 18.65 | 34.00 | 54.16 | 57.20 | 60.90 | 59.68 | 48.07 | 42.74 | 31.47 | 13.03 | 35.93 | |||||||||||||
1963 | -2.84 | 6.04 | 27.16 | 38.60 | 47.55 | 61.27 | 63.03 | 59.03 | 52.83 | 47.55 | 29.57 | 3.65 | 36.12 | |||||||||||||
1964 | 12.10 | 13.79 | 16.55 | 37.47 | 50.32 | 57.43 | 63.52 | 55.87 | 49.90 | 37.71 | 25.17 | 6.52 | 35.53 | |||||||||||||
1965 | -0.16 | 1.29 | 8.61 | 34.20 | 49.13 | 57.03 | 61.42 | 58.42 | 46.73 | 40.84 | 24.57 | 22.03 | 33.68 | |||||||||||||
1966 | -5.35 | 5.68 | 28.23 | 33.93 | 43.29 | 57.77 | 64.81 | 56.68 | 48.53 | 38.06 | 23.43 | 13.26 | 34.03 | |||||||||||||
1967 | 7.19 | 1.43 | 25.23 | 37.67 | 43.23 | 57.73 | 58.77 | 55.68 | 47.80 | 36.68 | 24.27 | 14.90 | 34.21 | |||||||||||||
1968 | 7.65 | 7.72 | ----- | z | 39.00 | 43.48 | 58.07 | 60.97 | 60.13 | 50.53 | 42.00 | 27.57 | 10.58 | 37.06 | a | |||||||||||
1969 | 0.90 | 12.04 | 13.84 | 38.67 | 49.77 | 51.67 | 63.13 | 60.97 | 51.70 | 38.03 | 26.27 | 12.30 | a | 34.94 | ||||||||||||
1970 | -3.84 | 4.54 | 17.45 | 35.70 | 49.45 | 59.63 | 62.45 | 60.00 | 51.73 | 40.77 | 26.20 | 9.06 | 34.43 | |||||||||||||
1971 | 0.00 | 10.11 | 21.32 | 35.93 | 43.42 | 62.20 | 57.58 | 57.61 | 51.20 | 43.97 | 27.27 | 11.87 | 35.21 | |||||||||||||
1972 | -1.81 | 3.59 | 20.45 | 33.60 | 51.26 | 55.27 | 60.71 | 61.00 | 49.90 | 36.55 | 28.13 | 5.16 | 33.65 | |||||||||||||
1973 | 9.87 | 15.93 | 33.74 | 36.47 | 45.29 | 59.20 | 63.10 | 63.19 | 52.67 | 46.77 | 28.67 | 11.29 | 38.85 | |||||||||||||
1974 | 4.45 | 10.21 | 25.00 | 38.67 | 46.68 | 55.27 | 65.06 | 57.35 | 45.97 | 41.26 | 28.40 | 17.90 | 36.35 | |||||||||||||
1975 | 6.87 | 7.54 | 15.23 | 33.77 | 50.42 | 58.33 | 64.00 | 61.39 | 47.30 | 40.58 | 27.93 | 15.90 | 35.77 | |||||||||||||
1976 | 4.87 | 20.10 | 24.42 | 39.43 | 45.35 | 57.73 | 61.68 | 59.13 | 47.00 | 32.16 | 16.57 | 2.65 | 34.26 | |||||||||||||
1977 | -9.74 | 12.89 | 28.81 | 41.60 | 54.87 | 57.57 | 62.94 | 55.97 | 51.67 | 36.81 | 22.93 | 7.48 | 35.32 | |||||||||||||
1978 | -6.03 | -1.07 | 18.23 | 35.33 | 48.29 | 55.97 | 59.74 | 58.29 | 53.93 | 37.13 | 21.07 | 3.58 | 32.04 | |||||||||||||
1979 | -9.52 | -3.36 | 18.00 | 31.63 | 42.06 | 54.60 | 59.97 | 58.39 | 50.57 | 36.42 | 23.83 | 17.00 | 31.63 | |||||||||||||
1980 | 7.84 | 6.72 | 17.19 | 34.97 | 46.39 | 56.07 | 61.26 | 59.39 | 50.17 | 34.29 | 26.37 | 10.48 | 34.26 | |||||||||||||
1981 | 5.55 | 13.04 | 24.68 | 38.53 | 44.61 | 55.10 | 61.61 | 59.52 | 48.27 | 36.48 | 28.13 | 7.57 | a | 35.26 | ||||||||||||
1982 | -9.00 | a | 5.93 | a | 21.34 | b | 30.31 | a | 50.11 | c | 50.17 | 62.39 | 58.90 | 50.77 | 39.65 | 21.47 | 18.48 | b | 33.38 | |||||||
1983 | 12.86 | b | 19.89 | 27.13 | 32.97 | 46.38 | b | 56.73 | 65.77 | 64.42 | 54.52 | a | 42.79 | c | 30.53 | -4.77 | 37.43 | |||||||||
1984 | 5.06 | 20.04 | a | 18.10 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.31 | a | 40.47 | a | 22.14 | h | 5.89 | m | 25.00 | g | |
1985 | -2.80 | k | 5.89 | j | 25.62 | g | 38.62 | i | 45.75 | o | 48.75 | f | 52.86 | i | 48.95 | l | 42.71 | i | 29.48 | j | 12.10 | j | -6.87 | h | ----- | z |
1986 | 4.73 | i | 8.42 | i | 27.10 | k | 38.04 | g | 48.19 | j | 56.38 | i | 60.87 | h | 51.58 | l | 47.63 | k | 36.82 | i | 17.20 | j | 15.39 | h | ----- | z |
1987 | 12.68 | l | 20.00 | h | 27.64 | i | 37.70 | c | 50.23 | 58.63 | 65.10 | 57.23 | 50.37 | 32.52 | 29.43 | 17.68 | 44.32 | c | ||||||||
1988 | -2.68 | -0.28 | 23.97 | a | 31.18 | b | 51.00 | a | 60.90 | 61.13 | 61.48 | 48.57 | 29.13 | 24.54 | b | 11.13 | a | 33.34 | ||||||||
1989 | 12.72 | b | -2.38 | b | 17.33 | a | 32.53 | 43.00 | a | 54.52 | a | 63.77 | a | 58.81 | 47.17 | 33.80 | a | 17.72 | a | 0.97 | 31.66 | |||||
1990 | 16.58 | 10.54 | 25.32 | 33.03 | 42.77 | 57.50 | 60.29 | 59.84 | 52.60 | 33.87 | 25.80 | 4.68 | 35.24 | |||||||||||||
1991 | 1.40 | a | 14.21 | 23.47 | a | 36.87 | 52.52 | 62.27 | 61.71 | 60.27 | a | 48.77 | 34.42 | 15.97 | 12.68 | 35.38 | ||||||||||
1992 | 13.97 | 21.52 | 23.06 | 32.63 | 46.33 | a | 52.48 | a | 55.10 | 53.74 | 46.17 | 36.00 | a | 25.90 | 12.77 | 34.97 | ||||||||||
1993 | 2.20 | a | 6.85 | a | 17.87 | a | 31.34 | a | 46.37 | a | 53.79 | b | 60.42 | 59.37 | a | 44.53 | 34.61 | 22.30 | 14.45 | 32.84 | ||||||
1994 | -5.32 | -1.25 | 23.10 | 32.03 | 46.35 | 59.00 | 58.53 | a | 56.23 | 52.79 | a | 42.77 | 28.30 | 16.45 | 34.08 | |||||||||||
1995 | 8.60 | a | 10.04 | 24.26 | 31.53 | 43.53 | a | 59.17 | 61.06 | 63.81 | 46.48 | a | 37.68 | 19.57 | 10.71 | 34.70 | ||||||||||
1996 | -1.32 | 7.38 | 15.26 | 29.37 | 44.84 | 58.07 | 58.10 | 57.68 | 49.53 | 37.45 | 16.77 | 5.45 | 31.55 | |||||||||||||
1997 | -0.97 | 11.46 | 21.03 | 30.33 | 39.80 | a | 57.55 | a | 62.10 | 58.72 | b | 51.03 | 37.71 | 21.13 | 20.20 | a | 34.18 | |||||||||
1998 | 9.48 | b | 24.82 | 22.87 | 37.07 | 52.26 | 54.50 | 61.81 | 61.81 | 52.48 | a | 40.68 | 28.37 | 15.71 | 38.49 | |||||||||||
1999 | 3.00 | 19.39 | 22.32 | 37.57 | 49.81 | 57.20 | 64.23 | 59.93 | a | 47.07 | a | 34.74 | 29.50 | 14.84 | 36.63 | |||||||||||
2000 | 3.94 | 18.03 | 28.53 | a | 34.63 | 48.58 | 54.90 | 61.77 | 60.23 | 46.54 | b | 40.58 | 22.73 | -2.29 | 34.85 | |||||||||||
2001 | 8.74 | -1.39 | 15.55 | 35.71 | b | 48.94 | 57.21 | a | 62.94 | 60.29 | 48.83 | a | 36.48 | 34.50 | 19.32 | 35.59 | ||||||||||
2002 | 13.55 | 16.30 | a | 14.97 | 32.15 | c | 42.23 | 59.47 | 65.10 | 59.00 | 51.43 | 32.90 | 23.70 | 17.23 | 35.67 | |||||||||||
2003 | 5.26 | 4.36 | 18.71 | 35.57 | 44.68 | 55.37 | 61.59 | b | 60.97 | 47.53 | 37.16 | 23.37 | 16.61 | 34.26 | ||||||||||||
2004 | 4.32 | 11.17 | 27.32 | 33.17 | 44.19 | 53.57 | 59.61 | 53.48 | 54.72 | a | 40.27 | a | 28.70 | 14.58 | 35.43 | |||||||||||
2005 | 6.84 | 15.96 | 19.77 | 39.10 | 45.23 | 61.00 | 64.10 | 58.20 | a | 53.70 | 38.69 | b | 26.97 | a | 10.29 | 36.65 | ||||||||||
2006 | 21.94 | 8.64 | 22.97 | 39.73 | 48.71 | 57.90 | a | 63.48 | 61.35 | 48.47 | 34.45 | 24.47 | 20.32 | 37.70 | ||||||||||||
2007 | 10.16 | 2.96 | 26.13 | 34.43 | 50.45 | 58.93 | 61.45 | 61.16 | 50.60 | 43.74 | 25.53 | 7.26 | 36.07 | |||||||||||||
2008 | 1.03 | 5.14 | 18.10 | 32.07 | a | 44.42 | 55.31 | a | 61.19 | 57.48 | 51.27 | 37.55 | 26.03 | 3.48 | 32.76 | |||||||||||
2009 | -3.81 | 11.85 | b | 21.48 | 33.57 | 45.03 | 54.43 | 56.45 | 56.65 | 52.20 | 35.10 | a | 30.67 | 8.52 | 33.51 | |||||||||||
2010 | 0.74 | 3.14 | 26.16 | 39.73 | 46.06 | 57.40 | 63.13 | 63.06 | 48.57 | ----- | z | ----- | z | ----- | z | 38.67 | c | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.94 | 9.00 | 21.35 | 35.15 | 47.13 | 56.88 | 61.65 | 59.42 | 49.68 | 38.26 | 25.12 | 11.26 | 34.91 | |||||||||||||
S.D. | 7.03 | 6.75 | 4.97 | 3.15 | 3.34 | 2.68 | 2.46 | 2.52 | 2.97 | 3.67 | 4.14 | 6.27 | 1.61 | |||||||||||||
SKEW | 0.15 | 0.26 | -0.15 | 0.09 | 0.19 | -0.24 | -0.47 | -0.09 | -0.62 | 0.17 | -0.46 | -0.32 | 0.00 | |||||||||||||
MAX | 21.94 | 24.82 | 33.74 | 41.73 | 54.87 | 62.27 | 65.94 | 64.94 | 54.72 | 47.55 | 34.50 | 23.48 | 38.85 | |||||||||||||
MIN | -9.74 | -3.36 | 8.61 | 29.10 | 39.80 | 50.17 | 55.10 | 53.48 | 41.31 | 29.13 | 15.97 | -4.77 | 31.55 | |||||||||||||
YRS | 53 | 53 | 52 | 53 | 53 | 52 | 53 | 53 | 54 | 53 | 52 | 52 | 49 |