YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.76 | 2.98 | 2.20 | 0.20 | 0.35 | 0.65 | 0.30 | 7.44 | d | ||||||||
1909 | 0.40 | 0.51 | 1.37 | 0.00 | 0.00 | 1.01 | 3.68 | 2.67 | 0.34 | 0.10 | 0.00 | 0.75 | a | 10.83 | ||||||||||||
1910 | 0.50 | 0.00 | 0.00 | 0.35 | 0.00 | 0.26 | 0.28 | 2.51 | 0.13 | 0.60 | 0.05 | 0.00 | 4.68 | |||||||||||||
1911 | 0.00 | 1.23 | a | 0.40 | 1.13 | 0.00 | 0.70 | 3.61 | 1.04 | 1.90 | 0.69 | 0.02 | ----- | z | 10.72 | a | ||||||||||
1912 | 0.00 | 0.92 | 0.40 | 0.56 | 0.08 | 1.78 | 1.38 | 4.07 | 1.61 | 0.43 | 0.00 | 0.31 | 11.54 | |||||||||||||
1913 | 1.12 | 1.29 | 1.01 | 0.83 | ----- | z | 1.97 | 0.05 | 1.97 | 1.16 | 0.00 | 0.74 | 0.40 | 10.54 | a | |||||||||||
1914 | 0.00 | 0.50 | 0.25 | 0.75 | 1.25 | 0.50 | 3.77 | 1.20 | 0.50 | 1.00 | 0.30 | 2.06 | 12.08 | |||||||||||||
1915 | 0.25 | 2.25 | 1.11 | 2.40 | 0.30 | 0.01 | 3.57 | 1.15 | 2.13 | 0.16 | 0.08 | 0.19 | 13.60 | |||||||||||||
1916 | 1.59 | 0.00 | 0.42 | 0.93 | 0.17 | 0.00 | 0.39 | 0.51 | 0.43 | 1.98 | 0.00 | 0.57 | 6.99 | |||||||||||||
1917 | 1.38 | 0.03 | 0.00 | 0.00 | 0.40 | 0.06 | 0.46 | 0.51 | 0.25 | 0.00 | 0.16 | 0.00 | 3.25 | |||||||||||||
1918 | 0.84 | 0.34 | 0.22 | 0.00 | 0.00 | 0.05 | 2.89 | 2.02 | 0.00 | 3.47 | 0.59 | a | 1.21 | 11.63 | ||||||||||||
1919 | 0.00 | 0.11 | 0.97 | 1.53 | 0.39 | 1.59 | 1.30 | 0.83 | 0.68 | 0.10 | 1.96 | 0.38 | 9.84 | |||||||||||||
1920 | 0.44 | a | 0.70 | 0.40 | 0.00 | 0.32 | 1.23 | 0.81 | ----- | z | 2.05 | 1.52 | 0.00 | 0.00 | 7.47 | a | ||||||||||
1921 | 0.50 | ----- | z | 1.31 | 0.00 | 0.20 | 1.39 | 5.63 | 2.14 | 1.24 | 0.18 | 0.00 | 0.00 | 12.59 | a | |||||||||||
1922 | 0.53 | 0.00 | 0.24 | 0.31 | 0.15 | 0.23 | 0.86 | 1.76 | 0.21 | 1.35 | 1.21 | 0.27 | 7.12 | |||||||||||||
1923 | 0.41 | 1.22 | q | 0.85 | 0.80 | 0.21 | 0.00 | 1.33 | 3.01 | 2.18 | 0.63 | 2.65 | 4.07 | 16.14 | a | |||||||||||
1924 | 0.05 | 0.00 | 0.52 | 0.36 | 0.21 | 0.35 | 2.53 | 0.11 | 0.33 | 0.25 | 0.20 | 0.56 | 5.47 | |||||||||||||
1925 | 0.27 | 0.00 | 0.30 | 0.02 | 1.01 | 0.58 | 2.17 | 2.08 | 0.54 | 0.97 | 0.16 | 0.27 | 8.37 | |||||||||||||
1926 | 1.04 | 0.00 | 2.86 | 0.51 | 2.39 | 1.56 | 2.96 | 0.77 | 3.69 | 1.41 | 0.00 | 3.40 | 20.59 | |||||||||||||
1927 | 0.15 | 0.03 | 0.42 | 0.37 | r | 0.00 | 1.36 | 4.02 | 3.98 | 2.12 | 0.29 | 0.00 | 0.52 | 12.89 | a | |||||||||||
1928 | 0.00 | 1.76 | 0.46 | 0.79 | 2.96 | 0.00 | 1.82 | 6.83 | 1.07 | 3.43 | 0.94 | 0.58 | 20.64 | |||||||||||||
1929 | 0.00 | 1.02 | 0.75 | 0.06 | 2.51 | 0.00 | 7.26 | d | 2.46 | 0.84 | 0.75 | 0.96 | 0.00 | 16.61 | ||||||||||||
1930 | 1.04 | 0.72 | 1.35 | 0.10 | 1.00 | 0.64 | 3.58 | 3.68 | 0.36 | 0.92 | 1.56 | 0.49 | 15.44 | |||||||||||||
1931 | 1.45 | 3.51 | 2.70 | 4.19 | n | 0.32 | 1.03 | ----- | z | 4.15 | 4.76 | e | 4.02 | 1.67 | 3.05 | 26.66 | b | |||||||||
1932 | 1.31 | a | 1.49 | 2.72 | 0.12 | 1.96 | 2.29 | ----- | z | 5.83 | d | 4.04 | 1.22 | 0.00 | 1.67 | 22.65 | a | |||||||||
1933 | 0.44 | 1.60 | 0.37 | 1.32 | o | 1.32 | 4.08 | 2.63 | j | 2.69 | 1.60 | 1.73 | q | 0.55 | 0.64 | 13.29 | c | |||||||||
1934 | 0.15 | y | 0.04 | 0.74 | 0.45 | 1.15 | o | 0.04 | 1.51 | v | 1.62 | 0.30 | 0.02 | 1.65 | 0.82 | 5.68 | c | |||||||||
1935 | 0.97 | 0.58 | 0.41 | 0.00 | 2.05 | 3.98 | 2.69 | 7.93 | 2.61 | 0.40 | 1.18 | 0.97 | a | 23.77 | ||||||||||||
1936 | 2.90 | 1.89 | 0.71 | 1.05 | 2.83 | 1.14 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.52 | f | ||||||
1937 | ----- | z | ----- | z | 0.78 | 0.36 | 1.73 | 1.02 | 0.43 | 1.38 | 1.33 | 2.32 | w | 0.02 | 0.64 | 7.69 | c | |||||||||
1938 | 0.85 | 0.61 | 0.35 | 0.17 | 0.01 | 1.83 | 3.86 | 0.73 | s | 3.12 | 0.18 | 0.14 | 1.06 | 12.18 | a | |||||||||||
1939 | 0.86 | 0.10 | 0.93 | 0.76 | 0.04 | 0.35 | 2.50 | 2.14 | 2.15 | 0.90 | 0.66 | 0.24 | 11.63 | |||||||||||||
1940 | 0.31 | 1.25 | 0.09 | 0.01 | 1.99 | 1.46 | 1.17 | 1.15 | 0.37 | 0.16 | 0.82 | 0.41 | 9.19 | |||||||||||||
1941 | 2.04 | 0.98 | 1.62 | 0.57 | 2.35 | 1.21 | 2.51 | 2.43 | 9.69 | 2.79 | 0.97 | 0.96 | 28.12 | |||||||||||||
1942 | 0.02 | 0.77 | 0.07 | 2.16 | 0.00 | 0.38 | 1.86 | 4.00 | 1.65 | 0.67 | 0.00 | 1.23 | 12.81 | |||||||||||||
1943 | 0.28 | 0.00 | 0.30 | 0.07 | 1.42 | 2.11 | 1.73 | 0.06 | 0.87 | 0.81 | 0.41 | 1.43 | 9.49 | |||||||||||||
1944 | 1.20 | 0.50 | 0.04 | 0.48 | 0.38 | 0.09 | 1.63 | 2.95 | 1.39 | ----- | z | 1.05 | 0.99 | 10.70 | a | |||||||||||
1945 | 0.63 | 0.02 | 0.76 | 0.44 | 0.00 | 0.01 | 1.83 | 0.45 | 0.31 | 0.26 | 0.00 | 0.29 | 5.00 | |||||||||||||
1946 | 0.79 | 0.08 | 0.30 | 0.67 | 0.42 | 0.69 | 1.45 | 1.51 | 1.35 | 0.99 | 0.50 | 0.72 | 9.47 | |||||||||||||
1947 | 0.21 | 0.13 | 0.16 | 0.05 | 0.51 | 0.17 | 1.20 | 1.30 | s | 0.06 | y | ----- | z | 1.22 | u | ----- | z | 2.43 | e | |||||||
1948 | 0.27 | 1.34 | 0.21 | 0.29 | 1.52 | 1.23 | 0.79 | 0.83 | 0.38 | 0.55 | 0.36 | 0.89 | 8.66 | |||||||||||||
1949 | 1.36 | 1.25 | 0.53 | 0.95 | 0.47 | 1.05 | 3.79 | 1.75 | 2.22 | 1.22 | 0.00 | 0.90 | 15.49 | |||||||||||||
1950 | 0.05 | 0.21 | 0.00 | 0.35 | 0.00 | 1.21 | 3.42 | 1.76 | 2.23 | 0.19 | 0.00 | 0.00 | 9.42 | |||||||||||||
1951 | 0.72 | 0.64 | 0.85 | 0.56 | 0.31 | 0.10 | 2.11 | 2.70 | 0.30 | 1.34 | 0.53 | 0.52 | 10.68 | |||||||||||||
1952 | 0.20 | 0.17 | 0.68 | 0.79 | 0.16 | 1.09 | 1.13 | 2.29 | 2.12 | 0.00 | 0.65 | 0.76 | 10.04 | |||||||||||||
1953 | 0.07 | 0.72 | 2.08 | 0.57 | 0.60 | 0.58 | 3.21 | 1.34 | 1.06 | 0.45 | 0.83 | 0.33 | 11.84 | |||||||||||||
1954 | 0.26 | 0.03 | 0.61 | 0.18 | 2.01 | 1.01 | 1.65 | 1.89 | 2.90 | 1.61 | 0.00 | 0.34 | 12.49 | |||||||||||||
1955 | 1.11 | 0.04 | 0.32 | 0.09 | 0.24 | 0.46 | 1.98 | 2.04 | 1.18 | 0.59 | 0.00 | 0.21 | 8.26 | |||||||||||||
1956 | 0.30 | 0.54 | 0.00 | 0.06 | 0.14 | 0.67 | 2.15 | 2.50 | 0.04 | 0.83 | 0.00 | 0.00 | 7.23 | |||||||||||||
1957 | 0.36 | 1.62 | 1.76 | 0.62 | 0.39 | 0.11 | 2.07 | 2.67 | 0.24 | 2.34 | 1.21 | 0.20 | 13.59 | |||||||||||||
1958 | 0.49 | 0.32 | 2.75 | 1.30 | 1.37 | 3.22 | 4.00 | 1.30 | 4.50 | 1.45 | 0.95 | 0.20 | 21.85 | |||||||||||||
1959 | 0.13 | 0.32 | 0.06 | 0.50 | 0.68 | 1.50 | 2.79 | 3.54 | 0.14 | 1.16 | 0.10 | 1.25 | 12.17 | |||||||||||||
1960 | 1.68 | 0.27 | 0.08 | 0.00 | 1.36 | 1.97 | 3.77 | 0.86 | 1.53 | 1.03 | 0.07 | 0.62 | 13.24 | |||||||||||||
1961 | 0.43 | 0.08 | 1.02 | 0.45 | 0.44 | 1.10 | 0.95 | 3.94 | 3.21 | 0.83 | 1.17 | 1.32 | 14.94 | |||||||||||||
1962 | 0.94 | 0.26 | 0.22 | 0.73 | 0.02 | 0.47 | 5.37 | 0.71 | 4.02 | 1.32 | 1.40 | 1.09 | 16.55 | |||||||||||||
1963 | 0.16 | 0.34 | 0.20 | 0.56 | 0.07 | 0.21 | 0.78 | 5.02 | 2.06 | 0.36 | 0.40 | 0.22 | 10.38 | |||||||||||||
1964 | 0.13 | 0.26 | 0.44 | 0.29 | 0.95 | 0.38 | 1.25 | 1.05 | 1.42 | 0.00 | 0.05 | 0.34 | 6.56 | |||||||||||||
1965 | 0.45 | 0.35 | 0.53 | 0.43 | 0.85 | 0.79 | 2.17 | 2.39 | 6.26 | 0.46 | 0.30 | 1.46 | 16.44 | |||||||||||||
1966 | 0.69 | 0.89 | 0.07 | 0.01 | 0.09 | 2.34 | 1.38 | 5.21 | 1.22 | 0.33 | 0.30 | 0.25 | 12.78 | |||||||||||||
1967 | 0.00 | 0.44 | 0.25 | 0.04 | 0.01 | 2.01 | 1.57 | 4.56 | 2.27 | 0.00 | 0.42 | 0.92 | 12.49 | |||||||||||||
1968 | 0.71 | 1.16 | 1.09 | 0.18 | 0.30 | 0.62 | 3.19 | 2.36 | 0.61 | 1.03 | 1.00 | 0.82 | 13.07 | |||||||||||||
1969 | 0.27 | 0.77 | 0.67 | 0.31 | 1.35 | 0.18 | 3.37 | 3.13 | 2.17 | 1.24 | 0.05 | 1.00 | 14.51 | |||||||||||||
1970 | 0.00 | 0.19 | 0.47 | c | 0.12 | 0.12 | 0.78 | 2.05 | ----- | z | 0.18 | 1.59 | 0.12 | 0.75 | 6.37 | a | ||||||||||
1971 | 0.12 | 0.29 | 0.00 | 0.45 | 0.00 | 0.34 | 2.85 | 2.70 | 1.77 | 2.21 | 2.02 | 1.71 | 14.46 | |||||||||||||
1972 | 0.76 | 0.35 | 0.03 | 0.00 | 0.55 | 1.01 | ----- | z | 4.72 | 2.87 | 3.68 | 1.31 | 1.22 | 16.50 | a | |||||||||||
1973 | 0.71 | 0.46 | 1.75 | a | 0.00 | 1.24 | 0.69 | 3.13 | 0.95 | ----- | z | 0.00 | 0.11 | 0.00 | 9.04 | a | ||||||||||
1974 | 0.60 | 0.42 | 0.58 | 0.00 | 0.14 | 0.19 | 2.04 | 3.21 | 1.91 | 4.16 | 0.40 | 1.14 | 14.79 | |||||||||||||
1975 | 0.51 | 1.21 | 1.16 | 0.07 | 0.00 | 0.11 | 2.79 | 2.53 | 1.47 | 0.00 | 1.27 | 0.25 | 11.37 | |||||||||||||
1976 | 0.00 | 0.60 | 0.10 | 0.71 | 1.98 | 0.80 | 2.07 | 1.26 | 3.26 | 0.04 | 0.20 | 0.00 | 11.02 | |||||||||||||
1977 | 1.06 | 0.71 | 0.19 | 1.47 | 0.47 | 0.09 | 1.37 | 4.84 | 1.16 | 0.12 | 0.40 | 0.20 | 12.08 | |||||||||||||
1978 | 2.81 | 1.02 | 0.75 | 0.05 | 1.17 | 0.42 | 0.40 | 0.00 | 0.74 | 2.20 | 3.08 | 1.48 | 14.12 | |||||||||||||
1979 | 1.79 | 0.84 | 0.11 | 0.07 | 1.41 | 1.02 | 2.86 | 2.83 | 1.48 | 0.47 | 0.21 | 0.89 | 13.98 | |||||||||||||
1980 | 0.67 | 0.54 | 0.38 | 0.62 | 0.37 | 0.60 | 0.93 | 3.17 | 3.19 | 0.05 | 0.09 | 0.68 | 11.29 | |||||||||||||
1981 | 0.13 | 0.26 | 1.34 | 0.19 | 0.62 | 0.84 | 1.99 | 3.72 | 0.73 | 0.74 | 0.57 | 0.10 | 11.23 | |||||||||||||
1982 | 1.82 | 0.11 | 0.22 | 0.00 | 0.45 | 0.14 | 1.71 | 1.25 | 2.18 | 0.38 | 0.34 | 0.57 | 9.17 | |||||||||||||
1983 | 0.92 | 0.59 | 1.35 | 0.36 | 0.54 | 0.35 | 1.86 | 0.48 | 0.64 | 1.79 | 1.91 | 0.32 | 11.11 | |||||||||||||
1984 | 0.19 | 0.03 | 0.02 | 0.28 | 0.94 | 2.13 | 0.98 | 3.23 | 0.50 | 2.59 | 1.23 | 1.80 | 13.92 | |||||||||||||
1985 | 1.84 | 0.44 | 1.01 | 0.93 | a | 0.14 | 0.17 | 1.26 | 0.84 | 2.13 | 4.84 | 0.48 | 0.13 | 14.21 | ||||||||||||
1986 | 0.16 | 1.21 | 1.23 | 0.15 | 0.97 | 2.51 | 2.33 | 2.47 | 1.99 | 4.09 | 1.83 | 0.95 | 19.89 | |||||||||||||
1987 | 0.21 | 0.81 | 0.08 | 0.53 | 1.34 | 1.21 | 0.53 | a | 3.80 | 0.63 | 0.47 | a | 0.83 | 0.65 | 11.09 | |||||||||||
1988 | 0.23 | 0.21 | a | 0.15 | 0.81 | 0.56 | 1.16 | a | 1.41 | 3.89 | 1.89 | 0.00 | 0.00 | ----- | z | 10.31 | a | |||||||||
1989 | 0.58 | 0.74 | 0.36 | 0.00 | 0.71 | 0.60 | 3.62 | 3.36 | 0.87 | 0.00 | 0.00 | 0.16 | 11.00 | |||||||||||||
1990 | 0.13 | 1.51 | 1.17 | 0.89 | 0.78 | 0.19 | 2.92 | a | 1.69 | a | 3.26 | 0.73 | 1.44 | 1.84 | 16.55 | |||||||||||
1991 | 0.70 | a | 0.96 | 0.31 | 0.00 | 0.05 | 0.26 | 6.33 | 2.98 | 1.25 | 0.60 | 1.51 | a | 2.62 | 17.57 | |||||||||||
1992 | 1.50 | 0.41 | 1.24 | 2.04 | 3.45 | 0.84 | 1.10 | 3.06 | 0.53 | 1.12 | 0.30 | 1.03 | 16.62 | |||||||||||||
1993 | 1.44 | 0.96 | 0.26 | 0.00 | 0.31 | 1.59 | 3.52 | 4.05 | 0.29 | 1.47 | 0.73 | 0.67 | 15.29 | |||||||||||||
1994 | 0.53 | 0.21 | 0.81 | 0.05 | 1.72 | 1.30 | 1.86 | 1.64 | 1.16 | 0.73 | 1.75 | 2.98 | a | 14.74 | ||||||||||||
1995 | 0.82 | 0.28 | 0.50 | 0.33 | 0.00 | 1.07 | 0.90 | 0.88 | a | 2.38 | 0.00 | 0.25 | 0.26 | 7.67 | ||||||||||||
1996 | 0.61 | 0.60 | 0.15 | ----- | z | 0.00 | 2.28 | 2.18 | 2.01 | 5.00 | 1.22 | 0.37 | 0.00 | 14.42 | a | |||||||||||
1997 | 1.17 | 1.09 | 0.13 | c | 1.98 | a | 2.25 | b | 1.62 | 3.45 | 1.52 | b | 1.94 | 0.51 | 0.81 | a | 1.90 | a | 18.37 | |||||||
1998 | 0.12 | 0.72 | a | 2.25 | a | 0.03 | a | 0.00 | 0.08 | 4.20 | 1.95 | a | 0.21 | a | 3.62 | 0.67 | 0.68 | 14.53 | ||||||||
1999 | 0.14 | a | 0.00 | 1.33 | 0.56 | 0.12 | 1.83 | 2.29 | 3.79 | 2.61 | a | 0.33 | 0.00 | 0.30 | 13.30 | |||||||||||
2000 | 0.00 | 0.00 | 1.28 | 0.18 | 0.00 | 3.15 | 0.38 | b | 2.03 | 0.33 | 3.50 | 0.98 | 1.27 | 13.10 | ||||||||||||
2001 | 1.37 | a | 2.48 | 0.94 | 0.28 | 0.54 | 0.23 | 0.33 | b | 1.96 | b | 0.86 | 0.15 | 0.53 | 0.64 | 10.31 | ||||||||||
2002 | 1.14 | 0.50 | e | 0.12 | 0.27 | 0.00 | a | 0.64 | 4.20 | k | 1.48 | 2.36 | 1.51 | 0.48 | 2.38 | 10.88 | a | |||||||||
2003 | 0.22 | 1.04 | 0.57 | 0.22 | 0.20 | 1.13 | 1.73 | 1.54 | a | 0.39 | a | 1.47 | b | 0.40 | 0.00 | a | 8.91 | |||||||||
2004 | 0.23 | 1.07 | a | 0.32 | a | 1.55 | c | 0.32 | e | 0.63 | b | 0.75 | d | 3.82 | 1.47 | 2.03 | a | 0.72 | 1.25 | c | 14.16 | |||||
2005 | 1.93 | f | 2.12 | a | 0.69 | j | 1.00 | a | 1.37 | 0.00 | 2.44 | 1.71 | c | 1.95 | 1.51 | 0.00 | 0.00 | 12.10 | b | |||||||
2006 | 0.00 | 0.10 | c | 0.36 | 0.12 | 0.13 | 2.45 | 3.09 | c | 4.77 | 2.08 | 3.50 | 0.13 | 0.85 | 17.58 | |||||||||||
2007 | 0.76 | 1.28 | 0.64 | 0.63 | 2.47 | 0.28 | 1.27 | 1.05 | 1.44 | 0.00 | 0.00 | b | 1.04 | a | 10.86 | |||||||||||
2008 | 0.31 | 0.15 | 0.00 | 0.00 | 0.54 | 0.45 | 5.32 | 2.33 | 2.03 | 1.22 | 0.10 | 0.35 | 12.80 | |||||||||||||
2009 | 0.08 | 0.00 | 0.23 | 0.13 | 1.01 | b | 1.40 | e | 2.26 | 0.41 | 0.97 | 1.61 | ----- | z | 1.26 | b | 9.36 | a | ||||||||
2010 | 0.79 | a | 0.88 | ----- | z | 1.59 | 0.30 | a | 0.58 | 4.41 | 1.09 | 0.36 | b | 1.99 | 0.06 | 0.40 | 12.45 | a | ||||||||
2011 | ----- | z | 0.29 | a | 0.00 | 0.00 | 0.00 | 0.00 | 1.88 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.29 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.63 | 0.65 | 0.66 | 0.47 | 0.72 | 0.94 | 2.29 | 2.39 | 1.64 | 1.12 | 0.59 | 0.81 | 12.67 | |||||||||||||
S.D. | 0.61 | 0.63 | 0.66 | 0.52 | 0.81 | 0.86 | 1.39 | 1.48 | 1.47 | 1.14 | 0.65 | 0.78 | 4.32 | |||||||||||||
SKEW | 1.38 | 1.60 | 1.55 | 1.61 | 1.29 | 1.36 | 0.92 | 0.97 | 2.24 | 1.38 | 1.36 | 1.76 | 0.72 | |||||||||||||
MAX | 2.90 | 3.51 | 2.86 | 2.40 | 3.45 | 4.08 | 7.26 | 7.93 | 9.69 | 4.84 | 3.08 | 4.07 | 28.12 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.25 | |||||||||||||
YRS | 99 | 100 | 101 | 99 | 102 | 104 | 96 | 98 | 100 | 98 | 100 | 99 | 78 |