YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | 1.00 | 0.04 | 0.03 | 0.36 | 1.39 | 1.31 | 3.78 | 1.35 | 1.16 | 0.88 | 11.30 | b | ||||||||||
1911 | 4.66 | 1.78 | 2.18 | 0.32 | 0.24 | a | 0.72 | 1.34 | 0.08 | 3.82 | 0.12 | 0.19 | 0.95 | 16.40 | ||||||||||||
1912 | 0.04 | 0.06 | 5.04 | 2.04 | 0.25 | 0.31 | 1.79 | 1.72 | 0.19 | 5.48 | 0.39 | 0.14 | 17.45 | |||||||||||||
1913 | 1.03 | 2.16 | 0.72 | 0.25 | 0.00 | 0.52 | 1.75 | 1.61 | 3.64 | 0.32 | 2.96 | 1.62 | 16.58 | |||||||||||||
1914 | 6.09 | 2.24 | 0.61 | 1.97 | ----- | z | 1.99 | u | 2.16 | 0.67 | 0.56 | y | ----- | z | ----- | z | 1.12 | 14.86 | e | |||||||
1915 | 2.86 | 2.77 | 0.20 | 2.37 | 1.61 | 0.30 | ----- | z | 0.27 | ----- | z | 0.00 | 2.15 | 1.62 | 14.15 | b | ||||||||||
1916 | 6.28 | k | 1.14 | 2.63 | 1.19 | 0.54 | 0.00 | 5.57 | 2.44 | 0.74 | 2.79 | 0.00 | 1.02 | 18.06 | a | |||||||||||
1917 | 1.58 | 1.84 | 0.16 | 3.32 | 1.56 | 0.00 | 2.67 | 0.58 | 1.38 | 0.00 | ----- | z | 0.00 | 13.09 | a | |||||||||||
1918 | ----- | z | 1.76 | 5.11 | 0.35 | 0.43 | 0.24 | 2.71 | 1.68 | 1.12 | 0.74 | 0.88 | 0.13 | 15.15 | a | |||||||||||
1919 | 0.10 | 1.28 | 1.05 | 0.41 | 1.11 | 0.08 | 2.13 | 0.39 | y | ----- | z | 0.87 | 1.00 | 1.16 | 9.19 | b | ||||||||||
1920 | 2.04 | 3.83 | 2.78 | 0.51 | 0.47 | 0.65 | ----- | z | 2.84 | 0.30 | 2.23 | 0.38 | 0.70 | 16.73 | a | |||||||||||
1921 | 3.17 | 0.08 | 1.22 | 1.24 | 1.07 | 0.11 | 1.43 | 3.26 | 0.00 | 1.04 | 0.64 | 5.44 | 18.70 | |||||||||||||
1922 | 2.05 | 0.99 | 1.28 | 1.26 | 0.73 | 0.08 | 0.92 | 3.73 | r | 0.93 | 0.92 | 0.89 | 2.31 | m | 10.05 | b | ||||||||||
1923 | 1.66 | 0.68 | 0.86 | 1.47 | 0.01 | 0.14 | 2.09 | 2.04 | 0.37 | 0.52 | 0.62 | 1.26 | 11.72 | |||||||||||||
1924 | 0.32 | 0.00 | 1.27 | 0.78 | 0.23 | 0.00 | 2.25 | 0.00 | 1.37 | 0.41 | 0.30 | 2.16 | 9.09 | |||||||||||||
1925 | 0.05 | 0.46 | 2.01 | 2.00 | 0.08 | 0.64 | 1.58 | 1.80 | 2.11 | 2.90 | 0.56 | 0.33 | 14.52 | |||||||||||||
1926 | 0.00 | 1.36 | 0.50 | 4.17 | 0.36 | 0.15 | 0.16 | 0.04 | 0.52 | 0.03 | 1.73 | 1.16 | 10.18 | |||||||||||||
1927 | 1.04 | 4.43 | 1.58 | 0.53 | 0.00 | 0.51 | 1.71 | 1.47 | 2.91 | 2.26 | 0.25 | 1.60 | 18.29 | |||||||||||||
1928 | 0.25 | 1.38 | 0.73 | 0.16 | 1.60 | 0.00 | 0.17 | 0.08 | 0.71 | 1.36 | 0.71 | 0.61 | 7.76 | |||||||||||||
1929 | 1.61 | 1.74 | 0.38 | 0.29 | 0.05 | 0.00 | 2.07 | 1.03 | 2.98 | 0.05 | 0.00 | 0.00 | 10.20 | |||||||||||||
1930 | 2.56 | a | 1.24 | 0.90 | 0.08 | 2.67 | 0.65 | 1.04 | 3.44 | 0.86 | 0.07 | 1.75 | 0.00 | 15.26 | ||||||||||||
1931 | 0.99 | 1.58 | a | 0.20 | 1.00 | 1.49 | 1.13 | 0.33 | 1.35 | 0.58 | 0.91 | 1.97 | 3.25 | 14.78 | ||||||||||||
1932 | 0.66 | 6.27 | 0.02 | 1.67 | 1.62 | 0.88 | a | 1.28 | a | 1.47 | 1.40 | ----- | z | 0.01 | 1.15 | m | 15.28 | b | ||||||||
1933 | 3.32 | 0.12 | 0.20 | 1.05 | 0.64 | 0.00 | 1.31 | 0.54 | 1.47 | 0.71 | 0.50 | 2.09 | 11.95 | |||||||||||||
1934 | 0.88 | 1.29 | 0.02 | 0.14 | 0.86 | 0.29 | 0.40 | 1.42 | 0.04 | 0.30 | 2.08 | 2.58 | 10.30 | |||||||||||||
1935 | 2.17 | 1.42 | 2.65 | 2.03 | 0.96 | 0.00 | 0.40 | 0.95 | 0.59 | 0.09 | 1.09 | 2.19 | 14.54 | |||||||||||||
1936 | 0.04 | 4.04 | a | 1.35 | 0.13 | 0.27 | 0.12 | 1.24 | 2.64 | 0.14 | 3.28 | 0.45 | 4.22 | 17.92 | ||||||||||||
1937 | 2.83 | 3.32 | 2.99 | 0.03 | 0.54 | 0.69 | 1.29 | 1.00 | 3.01 | 0.35 | ----- | z | ----- | z | 16.05 | b | ||||||||||
1938 | ----- | z | ----- | z | ----- | z | 0.70 | 1.17 | 0.57 | 0.25 | 0.66 | 0.36 | 1.22 | 0.74 | 1.30 | 6.97 | c | |||||||||
1939 | 2.78 | 0.89 | 0.86 | 1.29 | 0.54 | 0.03 | 0.07 | 0.38 | 7.29 | 0.77 | 0.94 | 0.16 | 16.00 | |||||||||||||
1940 | 3.33 | 4.10 | 0.13 | 0.63 | 0.36 | 0.02 | 0.92 | 1.74 | 4.56 | 0.78 | 0.90 | 3.11 | 20.58 | |||||||||||||
1941 | 1.94 | 2.65 | 3.83 | 3.84 | 0.25 | 0.36 | 1.45 | 1.09 | 1.25 | 3.36 | 1.24 | 2.80 | 24.06 | |||||||||||||
1942 | 0.00 | 0.86 | 1.27 | 2.08 | 0.31 | 0.00 | 0.54 | 1.42 | ----- | z | ----- | z | 0.48 | 1.63 | 8.59 | b | ||||||||||
1943 | 4.73 | 1.50 | 3.08 | 0.62 | 0.18 | 0.09 | 0.23 | 0.94 | 0.90 | 1.61 | 0.25 | 1.40 | 15.53 | |||||||||||||
1944 | 3.09 | 1.81 | 1.57 | 1.83 | 0.92 | 0.29 | 0.36 | 0.00 | 0.00 | 0.24 | 1.38 | 0.78 | 12.27 | |||||||||||||
1945 | 0.73 | 1.55 | 3.03 | 0.29 | 0.00 | 0.42 | 0.74 | 1.46 | 0.42 | 2.18 | 1.52 | 1.94 | 14.28 | |||||||||||||
1946 | 0.33 | 0.26 | 0.84 | 1.99 | 0.65 | 0.00 | 0.89 | 0.97 | 0.48 | 3.28 | 2.48 | 2.08 | 14.25 | |||||||||||||
1947 | 0.08 | 0.49 | 0.48 | 0.69 | 1.55 | 1.12 | 0.14 | 2.02 | 0.00 | 1.40 | 0.16 | 2.91 | 11.04 | |||||||||||||
1948 | 0.00 | 3.11 | 1.67 | a | 0.89 | 0.24 | 1.20 | 0.27 | 1.67 | a | 0.54 | 1.16 | 0.24 | 1.66 | 12.65 | |||||||||||
1949 | 3.40 | 2.25 | 1.09 | 0.99 | 1.67 | 2.79 | 0.24 | 0.65 | 1.17 | 1.45 | 1.63 | 2.82 | 20.15 | |||||||||||||
1950 | 1.19 | 1.20 | 0.70 | 0.00 | 0.00 | 0.00 | 2.30 | 1.28 | ----- | z | 0.00 | 0.00 | 0.30 | 6.97 | a | |||||||||||
1951 | 1.24 | 0.81 | 1.26 | 1.49 | 1.71 | 0.01 | 0.22 | 2.72 | 0.90 | 0.87 | 0.62 | 4.28 | 16.13 | |||||||||||||
1952 | 2.80 | 0.25 | 3.13 | 2.49 | 0.05 | 0.88 | 0.95 | 0.25 | 0.62 | 0.00 | 1.53 | 1.39 | 14.34 | |||||||||||||
1953 | 1.30 | 0.00 | 0.26 | 1.09 | 0.20 | 0.26 | 1.68 | 1.67 | 0.05 | 1.08 | 1.00 | 0.98 | 9.57 | |||||||||||||
1954 | 1.87 | 1.99 | 2.68 | 0.63 | 0.52 | 0.40 | 1.11 | 0.81 | 2.30 | 2.22 | 0.40 | 1.45 | 16.38 | |||||||||||||
1955 | 2.69 | 1.68 | 0.18 | 0.00 | 0.31 | 0.22 | 1.40 | 1.47 | 0.19 | 0.00 | 2.09 | 1.06 | 11.29 | |||||||||||||
1956 | 3.00 | 0.10 | 0.00 | 0.73 | 0.41 | 0.75 | 0.65 | 0.24 | 0.00 | 0.50 | 0.00 | 0.12 | 6.50 | |||||||||||||
1957 | 4.92 | 2.05 | 0.97 | 1.28 | 2.50 | 2.31 | 1.49 | 1.13 | 0.00 | 4.54 | 1.82 | 1.61 | 24.62 | |||||||||||||
1958 | 0.77 | 2.73 | 3.80 | 2.13 | 0.96 | 0.00 | 0.55 | 0.33 | 3.88 | 0.61 | 1.77 | 0.04 | 17.57 | |||||||||||||
1959 | 0.45 | 2.62 | 0.02 | 0.24 | 0.07 | 0.10 | 0.83 | 1.86 | 0.33 | 1.26 | 1.05 | 1.74 | 10.57 | |||||||||||||
1960 | 1.56 | 1.54 | 0.50 | 1.52 | 0.20 | 0.02 | 0.00 | 1.09 | 1.92 | 1.59 | 1.91 | 0.23 | 12.08 | |||||||||||||
1961 | 0.80 | 0.00 | 1.66 | 0.93 | 0.45 | 0.07 | 1.95 | 2.87 | 1.45 | 0.37 | 1.52 | 0.69 | 12.76 | |||||||||||||
1962 | 2.10 | 4.32 | 1.64 | 0.05 | 0.78 | 3.19 | 0.05 | 0.15 | 1.64 | 1.00 | 0.03 | 0.49 | 15.44 | |||||||||||||
1963 | 1.11 | 1.66 | 0.88 | 1.16 | 0.00 | 0.00 | 0.08 | 4.64 | 2.16 | 1.19 | 0.91 | 0.02 | 13.81 | |||||||||||||
1964 | 1.15 | 0.00 | 2.08 | 1.74 | 0.95 | 0.56 | 0.32 | 1.66 | 0.50 | 0.19 | 1.01 | 1.49 | 11.65 | |||||||||||||
1965 | 0.57 | 0.38 | 2.09 | 3.70 | 1.18 | 0.71 | 0.86 | 1.23 | 0.91 | 1.62 | 4.25 | 2.79 | 20.29 | |||||||||||||
1966 | 0.55 | 1.63 | 0.04 | 0.40 | 0.25 | 0.06 | 1.72 | 0.46 | 1.13 | 1.74 | 1.60 | 8.07 | 17.65 | |||||||||||||
1967 | 1.83 | 0.06 | 0.65 | 0.83 | 0.86 | 0.64 | 1.06 | 2.05 | 3.58 | 0.00 | 1.77 | 3.06 | 16.39 | |||||||||||||
1968 | 0.93 | 1.86 | 1.68 | 0.79 | 0.87 | 0.52 | 1.35 | 1.13 | 0.41 | 0.10 | 0.34 | 1.57 | 11.55 | |||||||||||||
1969 | 7.37 | 5.58 | 0.58 | 0.23 | 0.69 | 0.53 | 1.59 | 1.96 | 0.48 | 0.56 | 1.07 | 0.25 | 20.89 | |||||||||||||
1970 | 0.81 | 0.61 | 2.42 | 0.43 | 0.00 | 0.47 | 1.91 | 1.70 | 1.31 | 0.14 | 2.44 | 1.66 | 13.90 | |||||||||||||
1971 | 0.22 | 1.10 | 0.17 | 0.37 | 1.49 | 0.40 | 0.22 | 4.13 | 0.08 | 2.92 | 0.43 | 3.07 | 14.60 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.78 | 0.00 | 0.84 | 0.00 | 1.05 | 3.45 | 3.13 | 2.30 | 1.47 | 13.02 | |||||||||||||
1973 | 1.74 | 1.55 | 3.18 | 0.47 | 0.42 | 1.19 | 0.48 | 1.05 | 0.00 | 0.38 | 0.90 | 0.01 | 11.37 | |||||||||||||
1974 | 2.58 | 0.22 | 0.54 | 0.57 | 0.03 | 0.06 | 0.68 | 0.79 | 0.53 | 2.75 | 1.33 | 0.45 | 10.53 | |||||||||||||
1975 | 0.58 | 1.00 | 0.81 | 0.77 | 1.47 | 0.52 | 3.02 | 0.60 | 0.57 | 0.30 | 0.47 | 0.25 | 10.36 | |||||||||||||
1976 | 0.00 | 3.05 | 0.96 | 1.18 | 0.38 | 0.00 | 1.34 | 0.40 | 1.14 | 0.80 | 0.22 | 0.15 | 9.62 | |||||||||||||
1977 | 0.41 | 0.12 | 0.59 | 0.10 | 2.42 | 1.47 | 0.86 | 1.51 | 0.08 | 1.15 | 0.09 | 1.29 | 10.09 | |||||||||||||
1978 | 4.72 | 2.79 | 5.90 | 1.45 | 0.76 | 0.00 | 0.35 | 1.11 | 1.25 | 0.96 | 3.31 | 2.25 | a | 24.85 | ||||||||||||
1979 | 3.55 | 1.76 | 3.27 | 0.05 | 1.65 | 0.03 | 0.12 | 2.30 | 0.00 | 0.24 | 0.73 | 0.44 | 14.14 | |||||||||||||
1980 | 7.67 | 7.38 | 2.09 | 0.55 | 0.56 | 0.70 | 0.91 | 0.64 | 2.03 | 0.79 | 0.00 | 0.70 | 24.02 | |||||||||||||
1981 | 0.31 | 0.28 | 4.39 | 1.07 | 2.41 | 0.34 | 0.72 | 2.74 | 0.95 | 1.52 | 1.16 | 0.05 | 15.94 | |||||||||||||
1982 | 2.21 | a | 0.84 | 3.28 | 0.36 | 0.84 | 0.35 | 2.80 | 2.88 | 1.68 | 0.91 | 3.98 | 2.60 | 22.73 | ||||||||||||
1983 | 2.41 | 2.85 | 5.40 | 1.16 | 0.35 | 0.09 | 1.87 | 2.57 | 1.00 | 0.51 | 2.02 | 1.91 | a | 22.14 | ||||||||||||
1984 | 0.42 | b | 0.57 | 0.60 | 0.50 | 0.31 | 0.85 | 3.02 | 1.93 | 1.16 | 0.95 | 0.72 | b | 3.41 | d | 14.44 | ||||||||||
1985 | 1.13 | 0.64 | 3.91 | 1.58 | 0.95 | 0.48 | 4.42 | 0.00 | 0.87 | 1.70 | 3.30 | 0.53 | 19.51 | |||||||||||||
1986 | 0.47 | 3.17 | 1.99 | 0.69 | 0.07 | 0.47 | 1.18 | 1.23 | 2.70 | 1.37 | 1.00 | 0.62 | 14.96 | |||||||||||||
1987 | 1.52 | a | 1.55 | 1.37 | 0.60 | 1.32 | 0.30 | 2.01 | a | 4.21 | 0.12 | 2.73 | 3.01 | 0.78 | a | 19.52 | ||||||||||
1988 | 1.75 | 0.76 | 0.30 | 4.61 | 0.92 | 0.79 | 0.86 | 4.11 | 0.25 | 0.20 | 0.73 | 1.02 | a | 16.30 | ||||||||||||
1989 | 1.51 | 0.56 | 1.56 | 0.00 | 0.98 | 0.10 | 0.74 | 2.08 | 0.11 | 0.73 | 0.10 | 0.00 | 8.47 | |||||||||||||
1990 | 0.62 | 1.82 | 0.79 | 1.64 | 0.80 | 0.60 | 1.50 | 0.97 | 2.43 | 0.19 | 0.84 | b | 1.12 | b | 13.32 | |||||||||||
1991 | 0.87 | 0.81 | 3.58 | 0.13 | 0.47 | 0.95 | 0.83 | 1.24 | 1.40 | 0.93 | 0.74 | a | 0.83 | c | 12.78 | |||||||||||
1992 | 1.12 | a | 2.55 | 4.48 | 0.31 | 2.13 | 0.23 | 1.11 | 1.49 | 0.66 | 2.33 | 0.01 | 1.52 | a | 17.94 | |||||||||||
1993 | 7.84 | a | 5.90 | 1.55 | 0.00 | 0.35 | 0.81 | 0.00 | 2.72 | 0.07 | 1.62 | 1.56 | 0.71 | 23.13 | ||||||||||||
1994 | 0.18 | 2.88 | 0.98 | 2.15 | 0.31 | 0.05 | 0.07 | 1.21 | 1.07 | 2.05 | 1.69 | 1.23 | 13.87 | |||||||||||||
1995 | 3.20 | a | 1.73 | 4.68 | 1.87 | 2.11 | 0.88 | 0.20 | 0.48 | 1.73 | 0.00 | 0.67 | 0.33 | 17.88 | ||||||||||||
1996 | 1.47 | b | 3.35 | a | 0.44 | 0.29 | 0.61 | 0.09 | 1.15 | 0.62 | 1.06 | 1.43 | 1.81 | 3.41 | a | 15.73 | ||||||||||
1997 | 2.94 | a | 1.25 | 0.30 | a | 1.05 | 0.50 | 0.92 | 0.07 | 2.31 | 4.14 | 0.76 | 0.62 | 0.78 | 15.64 | |||||||||||
1998 | 1.49 | d | 3.37 | d | 2.27 | 1.97 | a | 1.31 | 0.76 | 2.29 | 0.88 | 3.30 | 1.63 | 2.05 | b | 0.67 | 21.99 | |||||||||
1999 | 0.50 | 0.60 | 0.07 | 2.89 | b | 0.33 | 0.93 | 1.63 | 1.62 | 0.39 | 0.00 | 0.15 | 0.00 | 9.11 | ||||||||||||
2000 | 1.21 | a | 2.87 | 2.13 | 0.20 | 0.35 | 2.22 | 0.08 | 0.81 | 0.23 | a | 3.11 | 0.46 | 0.41 | b | 14.08 | ||||||||||
2001 | 1.74 | a | 2.51 | 1.21 | 2.11 | 0.41 | 0.30 | 1.23 | 2.07 | 0.06 | 0.09 | 0.94 | a | 3.62 | c | 16.29 | ||||||||||
2002 | 0.23 | a | 0.12 | 0.57 | 0.63 | 0.00 | 0.00 | 0.14 | 0.07 | 2.45 | 1.67 | 2.19 | 0.50 | b | 8.57 | |||||||||||
2003 | ----- | z | 2.81 | 1.04 | 1.01 | 0.54 | 0.00 | ----- | z | 0.55 | ----- | z | 0.66 | ----- | z | 2.55 | b | 9.16 | d | |||||||
2004 | 0.60 | e | 3.11 | c | 0.08 | 1.52 | 0.04 | 0.16 | 0.90 | 0.82 | 1.19 | 3.97 | b | 4.16 | 3.15 | 19.70 | ||||||||||
2005 | 7.36 | 10.06 | 2.89 | b | 1.74 | 0.50 | 1.58 | ----- | z | 2.02 | 0.10 | a | 1.85 | a | 0.07 | 0.91 | 29.08 | a | ||||||||
2006 | 0.84 | 0.85 | a | 3.22 | b | 0.53 | 0.00 | 1.03 | 1.50 | 0.19 | 0.28 | 2.86 | 0.10 | 1.09 | h | 11.40 | a | |||||||||
2007 | 0.15 | b | 1.06 | 0.50 | 0.88 | 0.06 | 0.04 | 0.68 | 2.09 | 1.36 | 0.00 | 1.50 | 3.10 | 11.42 | ||||||||||||
2008 | 2.56 | f | 2.06 | b | 0.90 | 0.00 | ----- | z | 0.15 | 0.96 | a | 0.71 | b | 0.60 | 1.10 | 4.57 | d | 3.82 | e | 14.87 | b | |||||
2009 | 2.47 | b | 0.47 | h | 0.02 | 0.68 | 1.13 | 0.34 | 0.16 | 0.24 | 2.42 | 0.01 | 0.57 | 1.05 | g | 8.04 | b | |||||||||
2010 | 4.10 | b | 2.78 | a | 1.19 | a | ----- | z | 0.93 | 0.00 | 2.21 | 1.18 | 0.08 | 5.05 | b | 2.23 | b | 7.11 | a | 26.86 | a | |||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.60 | y | ----- | z | 2.51 | 1.34 | 0.57 | 0.32 | a | 4.74 | h | |||
2012 | 2.23 | 0.95 | 1.04 | 0.71 | 0.00 | 0.00 | 1.73 | 3.31 | 1.27 | 1.01 | 0.66 | 2.52 | 15.43 | |||||||||||||
2013 | 0.42 | 0.11 | 2.04 | 0.23 | 0.13 | 0.00 | ----- | z | 2.04 | e | 1.37 | 1.42 | 1.78 | 0.38 | 9.92 | a | ||||||||||
2014 | 1.01 | 0.82 | 0.60 | 0.95 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.38 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.81 | 1.83 | 1.57 | 1.06 | 0.70 | 0.47 | 1.16 | 1.43 | 1.26 | 1.24 | 1.17 | 1.54 | 15.04 | |||||||||||||
S.D. | 1.76 | 1.67 | 1.39 | 0.95 | 0.65 | 0.58 | 0.96 | 1.01 | 1.29 | 1.17 | 1.02 | 1.46 | 4.28 | |||||||||||||
SKEW | 1.64 | 1.96 | 1.11 | 1.47 | 1.12 | 2.29 | 1.52 | 0.92 | 1.71 | 1.35 | 1.26 | 1.80 | 0.41 | |||||||||||||
MAX | 7.84 | 10.06 | 5.90 | 4.61 | 2.67 | 3.19 | 5.57 | 4.64 | 7.29 | 5.48 | 4.57 | 8.07 | 24.85 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.50 | |||||||||||||
YRS | 98 | 101 | 103 | 103 | 101 | 102 | 98 | 101 | 98 | 101 | 100 | 99 | 82 |