YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | 1.00 | 10.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.87 | j | ||
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 | 41.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.74 | k | |
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 | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | 12.03 | 31.53 | 38.97 | 47.80 | 57.13 | 59.39 | 50.20 | 41.45 | 26.70 | 7.42 | 37.26 | b | ||||||||||
1961 | 3.16 | 15.82 | 25.42 | 30.70 | 38.90 | 50.93 | 58.39 | 60.90 | 50.07 | 42.03 | 27.47 | 12.48 | 34.69 | |||||||||||||
1962 | 0.00 | 4.25 | 20.71 | 29.20 | 39.90 | 46.67 | 54.87 | 56.77 | 50.50 | 42.94 | 31.40 | 11.03 | 32.35 | |||||||||||||
1963 | -3.39 | 2.18 | 19.74 | 31.13 | 38.32 | 48.07 | 60.13 | 58.33 | a | 53.07 | 50.10 | 31.77 | 5.35 | 32.90 | ||||||||||||
1964 | 11.23 | 12.55 | 14.77 | 31.57 | 44.77 | 48.17 | 59.32 | 55.48 | 48.10 | 40.06 | 26.30 | 5.32 | 33.14 | |||||||||||||
1965 | -1.10 | -2.68 | 12.61 | 31.03 | 39.29 | 47.17 | 54.94 | 55.84 | 46.67 | 40.74 | 26.20 | 20.42 | 30.93 | |||||||||||||
1966 | -5.90 | 8.00 | 23.29 | 31.23 | 39.45 | 49.13 | 60.68 | 57.26 | 51.90 | 39.23 | 23.43 | 12.29 | 32.50 | |||||||||||||
1967 | 6.63 | a | -1.75 | 19.26 | 31.00 | 37.13 | 47.90 | 57.39 | 56.03 | 51.23 | 39.74 | 25.00 | 13.58 | 31.93 | ||||||||||||
1968 | 4.94 | 5.21 | 23.97 | 33.43 | 39.32 | 47.10 | 55.26 | 54.61 | 51.47 | 43.65 | 29.43 | 12.42 | 33.40 | |||||||||||||
1969 | 4.52 | 10.57 | 18.84 | 32.30 | 42.26 | 46.30 | 55.26 | 60.61 | 55.77 | 39.81 | 31.23 | 16.23 | 34.47 | |||||||||||||
1970 | 0.42 | 4.93 | 16.97 | 31.52 | a | 39.52 | 48.50 | 59.03 | 59.39 | 52.77 | 41.45 | 27.83 | 15.42 | 33.14 | ||||||||||||
1971 | -0.48 | 5.21 | 18.87 | 30.17 | 38.13 | 48.30 | 55.19 | 55.39 | 51.90 | 44.55 | 27.67 | 11.71 | 32.22 | |||||||||||||
1972 | -4.32 | 2.72 | 14.52 | 26.60 | 35.65 | 43.93 | 52.84 | 54.87 | 48.30 | 36.58 | 26.27 | 5.61 | 28.63 | |||||||||||||
1973 | 8.06 | 10.96 | 27.81 | 32.10 | 40.35 | 47.37 | 57.93 | a | 60.29 | 51.83 | 44.90 | 27.30 | 11.29 | 35.02 | ||||||||||||
1974 | 4.29 | 6.79 | 18.23 | 30.57 | 37.29 | 49.63 | 56.71 | 56.81 | 45.00 | 39.87 | 30.27 | 20.03 | 32.96 | |||||||||||||
1975 | 7.45 | 9.29 | 16.48 | 31.22 | c | 42.84 | 48.50 | 60.42 | 58.74 | 48.07 | 44.29 | 31.23 | 11.90 | 34.20 | ||||||||||||
1976 | 0.77 | 15.90 | 20.19 | 35.87 | 40.71 | 49.33 | 58.32 | 58.31 | b | 42.07 | 34.20 | a | 18.53 | -3.26 | 30.91 | |||||||||||
1977 | -8.23 | 9.32 | 23.06 | 31.82 | b | 41.37 | a | 49.41 | a | 56.13 | 53.43 | c | 49.04 | b | 41.06 | 25.00 | 9.10 | a | 31.71 | |||||||
1978 | -0.47 | a | 5.46 | 18.45 | 32.55 | a | 42.23 | 50.83 | 58.77 | 58.39 | c | 52.10 | a | 43.00 | a | 23.80 | 6.29 | 32.62 | ||||||||
1979 | -5.47 | a | -2.79 | 17.52 | 28.83 | 37.50 | a | 48.30 | 57.19 | 56.94 | 52.07 | 39.71 | 27.17 | 17.74 | 31.23 | |||||||||||
1980 | 3.83 | a | 7.52 | 16.32 | 34.90 | 47.33 | a | ----- | z | 64.68 | 62.84 | 53.47 | 41.10 | 31.23 | 11.26 | 34.04 | a | |||||||||
1981 | 10.13 | 15.46 | 27.00 | 33.77 | 39.74 | 49.47 | 59.97 | 62.26 | 52.57 | 39.90 | 33.27 | 13.77 | 36.44 | |||||||||||||
1982 | 6.27 | t | 16.32 | i | 18.60 | a | 31.43 | 42.52 | d | 49.24 | a | 58.48 | b | 56.84 | 46.63 | 42.81 | 24.03 | 17.87 | 38.85 | b | ||||||
1983 | 10.94 | 21.89 | a | 25.45 | 32.47 | 39.68 | 48.93 | 60.58 | 65.81 | 52.10 | 41.42 | 30.23 | -0.65 | 35.74 | ||||||||||||
1984 | 4.68 | 20.69 | 16.10 | 32.07 | 40.94 | 49.90 | 59.13 | 61.37 | a | 48.53 | 41.84 | 26.23 | 8.94 | 34.20 | ||||||||||||
1985 | 1.13 | 6.11 | 25.23 | 32.50 | 42.48 | 46.63 | 55.90 | 52.45 | 47.33 | 41.13 | 20.40 | -0.71 | 30.88 | |||||||||||||
1986 | 8.00 | 6.57 | 21.52 | 34.55 | a | 41.43 | a | 50.76 | a | 58.42 | 57.90 | 50.07 | 40.58 | 21.70 | 16.45 | 34.00 | ||||||||||
1987 | 12.70 | a | 21.21 | 26.10 | 36.18 | b | 43.07 | b | 54.68 | b | 62.59 | b | 60.77 | e | 54.97 | 37.79 | b | 32.22 | g | 21.21 | c | 39.21 | a | |||
1988 | 1.00 | h | 1.71 | h | 22.00 | h | 33.80 | e | 44.12 | o | 52.96 | d | ----- | z | 61.91 | h | 50.76 | e | 37.42 | e | 28.42 | d | 12.47 | n | 40.67 | g |
1989 | 8.85 | e | -1.35 | b | 14.11 | d | 29.47 | 39.87 | a | 47.45 | a | 60.87 | a | 60.89 | d | 51.45 | a | 37.90 | 20.37 | 0.26 | 30.84 | |||||
1990 | 13.25 | g | 7.68 | 22.23 | 30.57 | 39.45 | ----- | z | ----- | z | 60.68 | 51.83 | 38.55 | 26.13 | 8.40 | a | 31.72 | c | ||||||||
1991 | -1.14 | j | 11.20 | c | 17.52 | h | 32.76 | a | 40.19 | d | 50.61 | b | 56.82 | n | 61.86 | i | 50.21 | a | 36.07 | a | 18.00 | 10.07 | b | 31.14 | d | |
1992 | 9.90 | a | 15.00 | e | 20.72 | b | 31.90 | a | 41.67 | a | 49.17 | a | 53.81 | 56.40 | a | 47.96 | g | 37.94 | 26.40 | e | 11.38 | g | 34.29 | b | ||
1993 | 4.14 | b | 11.14 | f | 18.58 | e | 31.83 | 41.14 | b | 47.67 | 56.07 | c | ----- | z | 45.74 | g | ----- | z | 21.77 | d | 13.10 | b | 29.29 | d | ||
1994 | -10.26 | -2.11 | a | 20.87 | a | 31.73 | 42.25 | c | 53.14 | b | 58.57 | q | 55.58 | 52.68 | b | 43.42 | 31.46 | b | 18.97 | a | 30.70 | a | ||||
1995 | 8.03 | a | 6.44 | a | 21.35 | 27.32 | b | 41.90 | a | 50.50 | b | 58.21 | b | 60.32 | ----- | z | 38.77 | 16.53 | 5.20 | a | 30.42 | a | ||||
1996 | -5.77 | 2.76 | 9.55 | 25.97 | 35.65 | 45.17 | 52.87 | a | 57.74 | 52.40 | 38.81 | 18.33 | 6.81 | 28.36 | ||||||||||||
1997 | 0.58 | 4.57 | 14.84 | 26.79 | b | 37.67 | a | 51.00 | h | 58.00 | 57.70 | a | 53.69 | a | 38.94 | 24.13 | 22.74 | 30.88 | a | |||||||
1998 | 13.00 | b | ----- | z | 28.94 | o | 35.67 | 44.17 | b | 51.70 | 61.48 | 63.03 | 53.97 | a | 41.68 | 30.40 | 14.65 | 40.97 | b | |||||||
1999 | 3.45 | 15.25 | 21.48 | 34.83 | a | 42.03 | 50.83 | 60.68 | 57.03 | a | 48.73 | 36.65 | 31.57 | 15.68 | 34.85 | |||||||||||
2000 | 3.87 | 14.28 | 26.61 | 31.33 | 41.68 | ----- | z | ----- | z | 61.20 | a | 48.20 | 41.32 | 27.40 | 0.97 | 29.69 | b | |||||||||
2001 | 10.55 | -0.14 | 18.33 | a | 31.83 | 42.81 | 49.83 | ----- | z | 60.10 | 50.03 | 36.57 | a | 34.37 | 19.81 | 32.19 | a | |||||||||
2002 | 12.16 | 15.11 | 11.00 | 27.45 | a | 35.19 | 46.57 | 56.23 | 49.10 | a | 44.66 | a | 33.26 | 22.50 | 16.10 | 30.78 | ||||||||||
2003 | 3.84 | 0.79 | 15.16 | 26.17 | 38.32 | 44.97 | 52.27 | e | 59.17 | a | 46.69 | a | 32.19 | 21.33 | 14.29 | 29.60 | ||||||||||
2004 | -2.48 | 6.04 | b | 20.94 | 30.40 | 35.32 | 45.77 | 48.32 | 43.83 | b | 45.20 | ----- | z | ----- | z | ----- | z | 30.37 | c | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.33 | 7.75 | 19.20 | 31.38 | 40.27 | 48.76 | 57.55 | 57.88 | 50.20 | 40.13 | 26.28 | 11.37 | 32.57 | |||||||||||||
S.D. | 6.08 | 6.69 | 4.65 | 2.49 | 2.57 | 2.25 | 3.15 | 3.82 | 2.99 | 3.29 | 4.46 | 6.44 | 2.01 | |||||||||||||
SKEW | -0.30 | 0.34 | -0.10 | -0.34 | 0.06 | 0.31 | -0.46 | -1.21 | -0.59 | 0.09 | -0.34 | -0.40 | -0.21 | |||||||||||||
MAX | 13.00 | 21.89 | 27.81 | 36.18 | 47.33 | 54.68 | 64.68 | 65.81 | 55.77 | 50.10 | 34.37 | 22.74 | 36.44 | |||||||||||||
MIN | -10.26 | -2.79 | 9.55 | 25.97 | 35.19 | 43.93 | 48.32 | 43.83 | 42.07 | 32.19 | 16.53 | -3.26 | 28.36 | |||||||||||||
YRS | 40 | 41 | 43 | 45 | 45 | 41 | 39 | 42 | 42 | 43 | 43 | 42 | 29 |