YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | ----- | z | ----- | z | 0.05 | 1.00 | w | 3.04 | 3.64 | 1.39 | 3.10 | 0.45 | 0.83 | 0.27 | a | 0.10 | 12.87 | c | ||||||||
1909 | 0.42 | 0.03 | h | 0.36 | b | 0.52 | 4.22 | 1.85 | 2.00 | 0.93 | 0.60 | 0.20 | 0.32 | a | 0.84 | a | 12.26 | a | ||||||||
1910 | 0.09 | 0.21 | 1.21 | a | 1.54 | 1.39 | 1.73 | 1.26 | 1.47 | 2.56 | 0.42 | 0.79 | 0.38 | 13.05 | ||||||||||||
1911 | 0.33 | 0.40 | 0.00 | 1.04 | 2.95 | 2.42 | 0.98 | 3.64 | 2.14 | 1.72 | 0.41 | y | 0.19 | 15.81 | a | |||||||||||
1912 | 0.16 | a | 0.10 | a | 0.07 | a | 2.32 | v | 3.01 | 1.02 | 2.63 | 2.43 | 3.87 | 0.53 | 0.07 | 0.32 | a | 14.21 | a | |||||||
1913 | 0.36 | a | 0.19 | a | 0.28 | 0.63 | 1.68 | 0.82 | 1.48 | 3.00 | 1.72 | w | 0.95 | a | 0.21 | ----- | z | 9.60 | b | |||||||
1914 | 1.59 | 0.30 | ----- | z | 1.85 | 2.15 | 2.77 | v | 1.59 | 1.57 | 1.10 | 1.60 | 0.50 | 0.10 | 12.35 | b | ||||||||||
1915 | 0.20 | 0.20 | 0.00 | 1.65 | 1.90 | 4.30 | 1.17 | 0.90 | 4.52 | 0.47 | 1.22 | 1.30 | b | 17.83 | ||||||||||||
1916 | 2.30 | c | 1.30 | 2.30 | a | 0.72 | 1.70 | 3.03 | 4.42 | 1.93 | 1.80 | 1.55 | 0.10 | 2.53 | 23.68 | |||||||||||
1917 | 2.80 | 0.50 | 0.50 | 1.98 | ----- | z | 2.70 | 2.95 | 1.00 | 0.65 | 1.05 | 0.10 | 0.47 | 14.70 | a | |||||||||||
1918 | 0.00 | 0.02 | a | 0.00 | 0.98 | 2.08 | r | 1.69 | s | 3.63 | 4.06 | 0.49 | 0.57 | 0.57 | 0.62 | 10.94 | b | |||||||||
1919 | ----- | z | 0.36 | 1.22 | 1.53 | 2.09 | 3.00 | 0.97 | 2.77 | 2.73 | 1.35 | 1.12 | 0.40 | 17.54 | a | |||||||||||
1920 | ----- | z | 0.39 | 0.80 | ----- | z | 0.67 | 5.76 | 1.29 | 2.06 | 2.11 | ----- | z | 0.36 | 0.57 | 14.01 | c | |||||||||
1921 | 0.00 | 0.23 | 1.10 | 1.84 | 3.12 | 1.38 | 5.82 | a | 3.30 | 2.95 | y | 1.22 | 0.70 | 0.30 | 19.01 | a | ||||||||||
1922 | 0.40 | 1.00 | 1.85 | a | 2.00 | 3.50 | 2.59 | 2.21 | 1.25 | 2.71 | 0.35 | 3.40 | 2.00 | 23.26 | ||||||||||||
1923 | 1.05 | 1.09 | y | ----- | z | 1.85 | 2.16 | 6.10 | 3.42 | 4.47 | 0.75 | ----- | z | ----- | z | ----- | z | 19.80 | e | |||||||
1924 | ----- | z | 0.60 | ----- | z | ----- | z | 0.50 | 3.36 | 2.79 | 1.65 | 2.79 | 2.52 | w | 0.24 | y | ----- | z | 11.69 | f | ||||||
1925 | ----- | z | 0.14 | y | ----- | z | 1.80 | 2.00 | 5.27 | 2.31 | 0.85 | 3.13 | 1.29 | 0.25 | 0.52 | 17.42 | c | |||||||||
1926 | ----- | z | 0.90 | 0.00 | y | 0.07 | 1.47 | 4.59 | 2.06 | 3.06 | 3.43 | 0.89 | 0.50 | ----- | z | 16.97 | c | |||||||||
1927 | 0.20 | 0.30 | x | 0.50 | 1.81 | 6.70 | 4.22 | 3.57 | 4.33 | v | 0.81 | 3.02 | 0.75 | 0.20 | 21.78 | b | ||||||||||
1928 | 0.10 | ----- | z | 0.98 | b | 0.69 | 1.94 | 3.55 | 3.34 | 1.85 | 0.28 | 0.30 | 0.10 | ----- | z | 13.13 | b | |||||||||
1929 | 0.90 | 0.40 | 0.50 | 2.61 | 2.16 | 1.60 | 2.57 | 0.70 | 2.50 | 2.20 | 0.73 | 1.11 | 17.98 | |||||||||||||
1930 | 0.00 | 2.50 | 0.20 | 1.05 | 2.66 | 3.50 | 2.27 | 0.40 | 1.15 | 2.45 | ----- | z | 0.00 | 16.18 | a | |||||||||||
1931 | 0.10 | 0.20 | 0.50 | 0.20 | 0.40 | 1.30 | a | 3.56 | 4.06 | 3.13 | 1.18 | ----- | z | ----- | z | 14.63 | b | |||||||||
1932 | 0.60 | a | 0.10 | 1.30 | 1.79 | 1.60 | 4.96 | 2.41 | 2.07 | 0.37 | 3.28 | 2.69 | 0.10 | a | 21.27 | |||||||||||
1933 | 1.15 | b | 0.35 | 0.15 | 1.80 | 5.02 | 1.87 | 1.70 | 1.95 | 1.40 | 0.35 | 0.30 | 1.07 | 17.11 | ||||||||||||
1934 | 0.80 | 0.10 | 0.10 | 0.65 | 0.35 | 2.84 | 1.53 | 2.39 | 0.70 | 0.35 | 0.15 | 0.55 | 10.51 | |||||||||||||
1935 | 0.35 | 0.10 | 1.55 | 1.41 | 2.13 | 4.93 | 3.63 | a | 2.95 | 0.97 | 0.05 | 0.60 | 0.35 | 19.02 | ||||||||||||
1936 | 0.80 | 0.56 | 0.80 | 0.26 | 2.13 | 4.00 | 0.84 | 1.36 | 1.45 | 0.20 | 0.30 | 0.70 | a | 13.40 | ||||||||||||
1937 | 0.20 | 0.70 | 0.75 | 2.85 | 1.66 | 5.79 | 4.92 | 4.62 | 1.38 | 3.15 | 1.50 | 0.22 | 27.74 | |||||||||||||
1938 | 0.32 | 0.66 | 0.88 | 0.96 | 2.14 | 0.81 | 3.24 | 0.88 | 0.00 | 0.59 | 0.14 | 0.19 | 10.81 | |||||||||||||
1939 | 0.24 | 0.36 | 0.10 | 0.79 | 0.94 | 3.92 | 1.19 | 1.60 | 0.76 | 0.08 | 0.00 | 0.00 | 9.98 | |||||||||||||
1940 | 0.00 | 0.26 | 0.26 | 1.12 | 1.11 | 2.72 | 4.91 | 2.78 | 1.26 | 1.47 | 0.46 | 0.18 | 16.53 | |||||||||||||
1941 | 0.42 | 0.06 | 0.38 | 1.74 | 4.76 | 2.49 | 1.35 | 2.41 | 5.78 | 1.31 | 0.22 | 0.04 | 20.96 | |||||||||||||
1942 | 0.19 | 0.09 | 1.63 | 0.73 | 0.99 | 1.73 | 4.68 | 2.91 | 0.90 | 0.25 | 0.12 | 0.43 | 14.65 | |||||||||||||
1943 | 0.52 | 0.34 | 0.86 | 0.81 | 1.65 | a | 3.13 | 5.97 | 2.80 | 0.52 | 0.57 | 0.25 | 0.01 | a | 17.43 | |||||||||||
1944 | 0.25 | 0.18 | 0.89 | 0.39 | a | 3.83 | 8.02 | 1.55 | 3.65 | 1.10 | 0.08 | 1.69 | 0.04 | 21.67 | ||||||||||||
1945 | 0.45 | 0.08 | 2.34 | 0.77 | 1.64 | 2.93 | 1.67 | 1.58 | 1.12 | 0.52 | 0.32 | 0.91 | 14.33 | |||||||||||||
1946 | 0.45 | 0.50 | 1.10 | 0.25 | 0.62 | 2.00 | 3.04 | 0.72 | 1.42 | 1.42 | 0.14 | 0.24 | 11.90 | |||||||||||||
1947 | 0.25 | 0.52 | 0.20 | 0.37 | 0.54 | 3.79 | a | 0.42 | 5.24 | a | 1.20 | 0.52 | 0.75 | 0.42 | 14.22 | |||||||||||
1948 | 0.24 | 0.30 | 0.17 | 1.24 | 0.98 | 4.44 | 3.07 | 3.66 | 0.19 | 1.31 | 1.22 | 0.79 | 17.61 | |||||||||||||
1949 | 1.16 | 0.24 | 0.30 | 0.17 | 1.11 | 2.12 | 2.54 | a | 0.39 | 0.78 | 1.59 | 0.41 | 0.61 | 11.42 | ||||||||||||
1950 | 0.49 | 0.07 | 0.38 | 0.50 | 2.37 | 4.00 | 3.24 | a | 1.10 | 1.42 | 0.29 | 0.32 | 0.30 | 14.48 | ||||||||||||
1951 | 0.15 | 0.31 | a | 0.28 | 0.37 | 0.17 | 2.36 | 1.81 | 5.03 | 2.11 | 0.20 | 0.21 | 0.08 | d | 13.08 | |||||||||||
1952 | 0.39 | 0.03 | 0.21 | 0.00 | 0.55 | 7.79 | 3.12 | 3.07 | 0.40 | 0.08 | 0.15 | 0.05 | 15.84 | |||||||||||||
1953 | 0.30 | 0.08 | 0.47 | 1.56 | 5.11 | 3.11 | 1.76 | 1.88 | 1.10 | 0.25 | 0.02 | 0.52 | 16.16 | |||||||||||||
1954 | 0.38 | 0.10 | 0.42 | 1.24 | 2.44 | 8.82 | 1.40 | 2.78 | 3.01 | 0.55 | 0.32 | 0.00 | 21.46 | |||||||||||||
1955 | 0.33 | 0.26 | 0.53 | 0.91 | 2.08 | 2.76 | 1.16 | 2.08 | 1.77 | 0.84 | 0.51 | 0.24 | 13.47 | |||||||||||||
1956 | 0.33 | 0.27 | 0.75 | 0.10 | 1.40 | 2.02 | 3.19 | 2.30 | 0.42 | 0.35 | 0.89 | 0.20 | 12.22 | |||||||||||||
1957 | 0.07 | 0.07 | 0.11 | 1.00 | 1.29 | 2.79 | 1.61 | 4.77 | 1.09 | 0.94 | 0.03 | 0.15 | 13.92 | |||||||||||||
1958 | 0.21 | 0.11 | 0.04 | 0.52 | 0.12 | 1.39 | 2.63 | 0.63 | 0.76 | 0.89 | 0.46 | a | 0.40 | 8.16 | ||||||||||||
1959 | 0.12 | 0.11 | 0.22 | 0.07 | 3.26 | 2.63 | 2.64 | 5.35 | 2.52 | 2.58 | a | 0.60 | 0.30 | 20.40 | ||||||||||||
1960 | 0.37 | a | ----- | z | 0.34 | 0.90 | 2.28 | 1.11 | 0.51 | 2.06 | e | 0.49 | 0.36 | ----- | z | ----- | z | 8.42 | c | |||||||
1961 | 0.05 | 0.09 | a | ----- | z | ----- | z | 0.10 | j | 1.30 | 1.56 | 0.13 | 3.18 | 0.00 | 0.05 | 0.75 | 7.11 | c | ||||||||
1962 | 0.36 | 0.29 | 0.45 | 0.20 | 5.60 | 0.47 | 2.59 | 2.41 | 0.22 | 0.85 | 0.59 | 0.30 | 14.33 | |||||||||||||
1963 | 0.01 | 0.20 | 0.10 | 2.09 | 2.60 | 5.23 | 4.17 | 1.48 | 0.80 | 0.79 | 0.06 | 0.27 | 17.80 | |||||||||||||
1964 | 0.21 | 0.28 | 0.44 | 0.99 | 2.27 | 5.56 | 3.07 | 4.71 | 2.76 | 0.35 | 0.21 | 0.67 | 21.52 | |||||||||||||
1965 | 0.35 | 0.11 | 0.14 | 1.03 | 5.47 | 0.72 | 3.83 | 3.14 | 3.20 | 0.17 | 0.46 | 0.20 | 18.82 | |||||||||||||
1966 | 0.25 | 0.14 | 0.12 | b | 0.64 | 2.21 | 2.64 | 2.34 | 3.74 | 0.34 | 0.50 | 0.14 | 0.27 | 13.33 | ||||||||||||
1967 | 0.43 | 0.08 | 0.26 | 3.33 | 0.39 | 0.98 | 0.55 | 1.56 | 1.71 | 2.57 | 0.17 | 0.61 | 12.64 | |||||||||||||
1968 | 0.26 | 0.00 | 0.18 | 1.23 | 2.73 | 1.12 | 4.19 | 7.77 | 3.24 | 0.87 | 0.35 | 0.05 | 21.99 | |||||||||||||
1969 | 0.69 | 0.81 | 0.09 | 0.37 | 2.07 | 3.24 | 4.00 | 0.94 | 0.36 | 1.78 | 0.15 | 0.23 | 14.73 | |||||||||||||
1970 | 0.48 | 0.13 | 1.18 | 2.02 | 3.44 | 2.10 | 5.98 | 1.97 | 2.58 | 0.57 | 0.51 | 0.28 | 21.24 | |||||||||||||
1971 | 0.42 | 0.00 | 2.64 | 1.97 | 2.09 | 5.50 | 4.04 | 0.78 | 2.29 | 3.35 | 0.25 | 0.14 | 23.47 | |||||||||||||
1972 | 0.18 | 0.44 | 0.62 | 0.37 | 1.80 | 4.17 | 2.53 | 4.03 | 2.16 | 0.35 | 0.17 | 0.17 | 16.99 | |||||||||||||
1973 | 0.07 | 0.30 | 0.34 | 1.14 | 2.78 | 4.96 | 2.81 | 1.92 | ----- | z | 0.26 | 0.71 | 0.18 | 15.47 | a | |||||||||||
1974 | 0.72 | c | 0.98 | 0.60 | 2.15 | 6.15 | 2.13 | 1.44 | 5.34 | 0.32 | ----- | z | 0.04 | 1.03 | 20.90 | a | ||||||||||
1975 | 0.51 | 0.26 | 1.20 | 4.09 | 1.77 | 3.55 | 6.55 | 1.83 | ----- | z | 2.04 | 0.34 | 0.87 | 23.01 | a | |||||||||||
1976 | 0.58 | 1.09 | 1.49 | 2.11 | ----- | z | 3.92 | 0.13 | 2.43 | 0.95 | 0.07 | ----- | z | ----- | z | 12.77 | c | |||||||||
1977 | ----- | z | ----- | z | 0.00 | 0.09 | 4.24 | 2.88 | b | 3.21 | 1.04 | 2.26 | 0.41 | 0.82 | 0.64 | 15.59 | b | |||||||||
1978 | 0.34 | 0.10 | 0.12 | 0.98 | 2.65 | 2.31 | 2.85 | 3.29 | 0.57 | 0.38 | 1.00 | ----- | z | 14.59 | a | |||||||||||
1979 | ----- | z | ----- | z | ----- | z | 2.04 | a | 1.34 | 2.13 | 0.92 | 2.18 | 1.68 | 0.36 | ----- | z | 0.36 | 11.01 | d | |||||||
1980 | 1.09 | b | 1.24 | 0.39 | 0.36 | 0.28 | 3.50 | 2.41 | 7.10 | 3.89 | 1.24 | 0.77 | 0.30 | 22.57 | ||||||||||||
1981 | 2.27 | 0.17 | 0.38 | 0.41 | 1.60 | 3.08 | 0.57 | 5.27 | 1.80 | 1.40 | ----- | z | 0.38 | 17.33 | a | |||||||||||
1982 | 1.23 | a | 0.10 | 1.10 | 0.65 | 3.96 | 3.08 | 3.12 | 1.42 | 0.85 | 3.27 | 0.09 | 0.78 | 19.65 | ||||||||||||
1983 | 0.15 | 0.11 | 1.27 | 0.10 | 1.38 | 3.70 | 2.80 | 1.11 | 2.67 | 0.77 | ----- | z | 0.40 | 14.46 | a | |||||||||||
1984 | 0.31 | 0.48 | 0.25 | 2.06 | 0.38 | 1.42 | 1.62 | 0.66 | a | 1.20 | 3.60 | 1.14 | 0.38 | 13.50 | ||||||||||||
1985 | 0.29 | 0.26 | 0.23 | 0.02 | 2.53 | 4.67 | 0.95 | 4.63 | 0.87 | 1.54 | 1.09 | 0.39 | 17.47 | |||||||||||||
1986 | 0.25 | 0.25 | 0.42 | 2.76 | 1.30 | 4.95 | 3.86 | 0.90 | 1.39 | 0.34 | 1.61 | 0.17 | 18.20 | |||||||||||||
1987 | 1.01 | 1.46 | 0.82 | 0.13 | 2.20 | 1.36 | 3.92 | 5.24 | 1.06 | 0.28 | i | 0.07 | 0.53 | 17.80 | a | |||||||||||
1988 | 0.35 | 0.30 | 0.71 | 0.11 | 1.64 | 1.06 | 1.17 | 0.35 | 1.76 | 0.22 | 0.72 | 1.19 | 9.58 | |||||||||||||
1989 | 2.08 | 0.00 | 0.71 | 0.50 | 1.34 | 2.68 | 1.28 | 0.74 | 2.19 | 0.32 | 0.73 | 0.12 | 12.69 | |||||||||||||
1990 | 0.57 | 0.57 | 2.89 | 1.16 | 1.51 | 3.68 | 2.45 | 2.58 | 1.18 | 0.19 | 0.16 | 1.05 | 17.99 | |||||||||||||
1991 | 0.36 | 0.72 | 0.46 | 1.48 | 3.70 | 3.62 | a | 4.59 | 3.11 | 2.32 | 1.84 | 1.62 | 0.99 | a | 24.81 | |||||||||||
1992 | 0.96 | 0.50 | 0.78 | 0.66 | 1.44 | 1.04 | 2.87 | 1.79 | r | 0.90 | 0.48 | 0.87 | 0.88 | 11.38 | a | |||||||||||
1993 | 0.71 | 0.08 | 0.70 | 0.47 | 2.60 | 5.29 | 9.02 | 3.27 | 0.81 | 0.18 | 0.60 | 0.51 | 24.24 | |||||||||||||
1994 | 1.15 | 0.64 | 0.44 | 0.42 | 2.95 | 2.17 | 2.17 | 2.50 | 2.13 | 5.58 | 1.86 | 0.33 | 22.34 | |||||||||||||
1995 | 0.48 | 0.85 | 2.05 | 0.09 | 2.18 | 1.69 | 2.47 | 2.55 | 0.83 | 1.04 | 2.95 | 1.12 | 18.30 | |||||||||||||
1996 | 0.39 | 0.80 | 2.20 | 0.71 | 2.37 | 3.70 | 4.32 | 0.70 | 1.01 | 0.35 | 1.83 | 1.47 | g | 18.38 | a | |||||||||||
1997 | 0.79 | 1.00 | b | 0.42 | a | 3.00 | a | 0.59 | 1.84 | 3.92 | 2.20 | 0.79 | 2.49 | 0.37 | 0.35 | a | 17.76 | |||||||||
1998 | 0.70 | a | 4.50 | a | 0.49 | 1.97 | 2.64 | 4.79 | 2.38 | 1.52 | 0.14 | 2.46 | 0.99 | 0.13 | a | 22.71 | ||||||||||
1999 | 0.81 | 0.55 | a | 0.39 | 1.35 | 9.68 | 2.99 | 3.09 | 3.85 | 1.45 | 0.02 | 0.00 | 0.42 | 24.60 | ||||||||||||
2000 | 0.10 | 1.42 | a | 0.43 | 0.26 | 2.16 | 3.92 | 2.60 | 3.44 | 1.77 | 1.01 | 2.43 | 0.60 | 20.14 | ||||||||||||
2001 | 0.00 | 0.26 | 0.10 | 0.99 | 7.17 | a | 12.59 | 4.94 | 0.28 | 0.59 | 0.46 | 0.13 | 0.02 | h | 27.51 | a | ||||||||||
2002 | 0.11 | 0.00 | a | 0.10 | i | 0.65 | 1.15 | 4.30 | 0.98 | 8.62 | 1.27 | 0.06 | 0.02 | a | 0.24 | 17.40 | a | |||||||||
2003 | 0.08 | 0.00 | 0.06 | 0.45 | 2.62 | 1.37 | b | 0.62 | 1.21 | 3.10 | 0.52 | 0.35 | 0.27 | e | 10.65 | |||||||||||
2004 | 0.52 | a | 0.02 | 1.31 | 0.38 | d | 2.69 | 2.92 | c | 2.40 | 5.59 | 2.09 | 0.71 | d | 0.01 | 0.01 | c | 18.65 | ||||||||
2005 | 0.00 | p | 0.00 | u | 0.75 | n | 0.00 | a | 2.81 | 5.86 | 4.22 | b | 1.93 | h | 1.48 | 1.67 | 1.10 | b | 0.00 | a | 17.14 | d | ||||
2006 | 0.47 | 0.49 | 0.85 | 1.39 | 1.29 | 2.09 | 0.90 | 2.86 | 1.49 | 0.59 | 0.48 | 0.92 | 13.82 | |||||||||||||
2007 | 0.02 | 0.11 | s | 2.40 | 0.09 | 5.04 | 6.88 | 3.22 | 0.81 | 0.71 | 0.39 | 0.00 | a | 0.85 | 20.41 | a | ||||||||||
2008 | 0.01 | 0.10 | 0.17 | 0.96 | 1.21 | 5.29 | 2.34 | 2.75 | 2.62 | c | 2.68 | 1.86 | 0.42 | a | 20.41 | |||||||||||
2009 | 0.12 | 0.18 | 1.14 | 0.91 | 2.79 | 2.87 | 0.65 | 1.93 | 0.95 | 2.10 | 0.00 | 0.36 | a | 14.00 | ||||||||||||
2010 | 0.97 | 1.02 | 0.34 | 1.57 | 2.84 | 2.96 | 1.93 | b | 7.02 | 4.34 | 2.05 | 0.42 | 1.63 | 27.09 | ||||||||||||
2011 | 0.40 | j | 0.12 | q | 0.05 | v | 1.40 | r | 0.10 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.50 | 0.44 | 0.68 | 1.07 | 2.36 | 3.32 | 2.64 | 2.60 | 1.60 | 1.06 | 0.61 | 0.48 | 17.33 | |||||||||||||
S.D. | 0.52 | 0.59 | 0.65 | 0.83 | 1.61 | 1.92 | 1.50 | 1.72 | 1.11 | 1.01 | 0.67 | 0.44 | 4.59 | |||||||||||||
SKEW | 2.25 | 4.18 | 1.49 | 0.98 | 1.66 | 1.58 | 1.08 | 1.09 | 1.07 | 1.62 | 1.96 | 1.97 | 0.17 | |||||||||||||
MAX | 2.80 | 4.50 | 2.89 | 4.09 | 9.68 | 12.59 | 9.02 | 8.62 | 5.78 | 5.58 | 3.40 | 2.53 | 27.74 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.47 | 0.13 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 8.16 | |||||||||||||
YRS | 94 | 92 | 94 | 98 | 99 | 101 | 103 | 100 | 99 | 98 | 93 | 92 | 66 |