YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | 0.30 | 0.00 | 0.89 | 2.40 | a | 1.11 | 3.86 | 2.17 | 1.54 | 0.58 | 1.25 | 0.50 | 0.65 | b | 15.25 | |||||||||||
1915 | 0.21 | a | 1.40 | 0.60 | 1.57 | 3.56 | 7.43 | 1.96 | 0.49 | 2.54 | 0.31 | 0.92 | 0.50 | 21.49 | ||||||||||||
1916 | 2.10 | 0.40 | 1.80 | 2.51 | 4.06 | 4.91 | 3.32 | 3.19 | 2.60 | 0.61 | ----- | z | 0.25 | 25.75 | a | |||||||||||
1917 | 0.25 | ----- | z | 1.36 | 0.97 | 0.00 | 1.90 | 1.90 | 1.36 | 1.84 | 0.28 | 0.20 | 0.95 | 11.01 | a | |||||||||||
1918 | 0.17 | 0.02 | 0.05 | b | 1.66 | 3.26 | 2.21 | 1.81 | x | 4.71 | 0.04 | 0.75 | 0.90 | 0.50 | 14.27 | a | ||||||||||
1919 | 0.60 | b | 0.55 | 1.00 | 1.15 | 3.34 | 2.93 | 2.95 | 3.35 | 1.17 | 0.50 | 2.00 | 0.60 | 20.14 | ||||||||||||
1920 | 0.70 | 0.20 | 0.02 | 0.80 | 2.39 | 3.94 | 1.15 | 1.07 | 2.96 | 0.24 | ----- | z | ----- | z | 13.47 | b | ||||||||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | 1.01 | a | ----- | z | 1.37 | 3.09 | ----- | z | 1.23 | 0.09 | 0.10 | 6.89 | f | |||||
1942 | 0.06 | 0.10 | 3.01 | 1.90 | 3.63 | 1.41 | ----- | z | ----- | z | 0.86 | 0.26 | 0.20 | 0.59 | a | 12.02 | b | |||||||||
1943 | 0.21 | 0.61 | 0.52 | 2.11 | 2.28 | b | 4.22 | 1.59 | 3.15 | ----- | z | 0.95 | 0.22 | 0.11 | 15.97 | a | ||||||||||
1944 | 0.10 | ----- | z | 0.52 | 0.55 | 4.45 | 3.12 | 3.47 | 5.35 | 0.99 | 0.00 | 3.12 | 0.00 | 21.67 | a | |||||||||||
1945 | 0.12 | 0.17 | 1.06 | 1.59 | 2.36 | 0.86 | 2.98 | 3.50 | 2.93 | 0.00 | 0.02 | 0.63 | 16.22 | |||||||||||||
1946 | 0.45 | 0.56 | 1.31 | 0.98 | 2.25 | 4.06 | 2.45 | 1.36 | 4.37 | 2.00 | 0.12 | 0.78 | 20.69 | |||||||||||||
1947 | 0.42 | 0.28 | 0.18 | 2.10 | 1.71 | 4.37 | 0.20 | 2.78 | 2.91 | 1.07 | 1.67 | 0.22 | 17.91 | |||||||||||||
1948 | 0.20 | 1.43 | ----- | z | 1.51 | 1.17 | 2.12 | v | 4.18 | 2.64 | 0.73 | 1.37 | 0.64 | 0.12 | 13.99 | b | ||||||||||
1949 | 0.34 | 0.05 | 0.13 | 0.18 | 4.27 | 1.41 | 6.46 | 0.54 | 0.74 | a | 2.71 | 0.51 | 1.13 | 18.47 | ||||||||||||
1950 | 1.45 | j | 0.26 | 2.85 | 2.25 | 4.89 | 3.35 | 1.25 | 0.66 | 2.42 | 0.20 | b | 0.05 | 0.37 | 18.55 | a | ||||||||||
1951 | 0.59 | 0.12 | 0.52 | 0.43 | 0.35 | 2.40 | 1.54 | 6.60 | 0.81 | 0.35 | 0.13 | 0.59 | f | 13.84 | a | |||||||||||
1952 | 0.37 | 0.34 | 0.32 | 0.50 | 0.41 | 1.65 | 6.81 | 1.84 | a | 0.37 | 0.00 | 1.57 | 0.13 | 14.31 | ||||||||||||
1953 | 0.21 | 0.10 | 0.05 | 1.69 | 4.04 | 7.41 | 0.81 | 1.66 | 1.07 | 1.17 | 0.42 | 0.57 | 19.20 | |||||||||||||
1954 | 0.27 | 0.10 | 0.53 | 1.20 | 1.71 | 2.88 | 1.44 | 1.97 | 2.42 | 0.12 | 0.30 | 0.11 | 13.05 | |||||||||||||
1955 | 0.16 | 0.26 | 0.26 | 0.37 | 2.51 | 3.25 | 3.23 | 1.08 | 1.29 | 0.02 | 0.48 | 0.16 | 13.07 | |||||||||||||
1956 | 0.46 | 0.49 | 1.01 | 0.65 | 2.66 | 3.58 | 2.51 | 2.54 | 0.89 | 1.62 | 1.46 | 0.10 | 17.97 | |||||||||||||
1957 | 0.08 | 0.10 | 0.01 | a | 1.42 | 2.72 | 3.58 | 5.56 | 2.04 | 4.96 | 0.86 | 0.57 | 0.17 | 22.07 | ||||||||||||
1958 | 0.10 | 0.26 | 0.01 | 1.07 | 0.88 | 2.95 | 4.26 | 2.50 | 0.52 | 0.48 | 1.01 | 0.01 | 14.05 | |||||||||||||
1959 | 0.18 | 0.12 | 0.02 | 0.60 | 2.30 | 2.11 | 1.44 | 3.41 | 1.22 | 2.76 | 0.37 | 0.19 | 14.72 | |||||||||||||
1960 | 0.34 | 0.34 | 0.23 | 0.91 | 2.49 | 3.94 | 2.32 | 3.69 | 1.52 | 1.39 | 0.23 | 0.47 | 17.87 | |||||||||||||
1961 | 0.00 | 0.10 | 0.43 | 1.89 | 1.18 | 0.96 | 1.74 | 1.53 | 4.42 | 2.40 | 0.03 | 0.16 | 14.84 | |||||||||||||
1962 | 0.41 | 0.54 | 0.58 | 0.25 | 5.43 | 1.47 | 5.60 | 2.19 | 6.05 | 0.43 | 0.39 | 0.06 | 23.40 | |||||||||||||
1963 | 0.04 | 0.23 | 0.09 | 1.77 | 1.17 | 1.01 | 2.38 | 4.22 | 0.53 | 0.13 | 0.20 | 0.24 | 12.01 | |||||||||||||
1964 | 0.10 | 0.17 | 0.44 | 3.03 | 0.62 | 6.96 | 1.80 | 4.99 | 1.38 | 0.08 | 0.21 | 0.60 | 20.38 | |||||||||||||
1965 | 0.18 | 0.08 | 0.26 | 3.53 | 3.94 | 3.22 | 5.98 | 2.52 | 4.14 | 1.34 | 0.46 | 0.67 | 26.32 | |||||||||||||
1966 | 0.14 | 0.27 | 0.93 | c | 1.25 | 0.77 | 3.70 | 3.04 | 4.63 | 0.90 | 0.62 | 0.30 | 0.40 | 16.95 | ||||||||||||
1967 | 0.94 | 0.51 | 0.20 | 3.83 | 1.70 | 2.54 | 0.75 | 0.22 | 1.36 | 1.92 | 0.02 | 0.71 | 14.70 | |||||||||||||
1968 | 0.45 | 0.08 | 0.78 | 2.50 | 1.87 | 7.62 | 3.45 | 3.67 | 1.73 | 0.72 | 0.25 | 0.88 | 24.00 | |||||||||||||
1969 | 1.72 | 0.40 | 0.61 | 0.94 | 1.78 | 3.95 | 2.79 | 1.17 | 4.35 | 1.39 | 0.10 | 0.71 | 19.91 | |||||||||||||
1970 | 0.19 | 0.11 | 1.05 | 1.85 | 3.43 | 3.23 | 1.45 | 0.59 | 1.51 | 1.19 | 0.84 | 0.28 | 15.72 | |||||||||||||
1971 | 0.88 | 0.32 | 0.36 | 1.35 | 3.27 | 6.23 | 1.68 | 1.03 | 2.02 | 4.63 | 0.29 | 0.29 | 22.35 | |||||||||||||
1972 | 0.68 | 0.44 | 0.44 | 1.04 | 3.86 | 1.02 | 3.00 | 5.22 | 2.06 | 1.20 | 0.10 | 1.12 | 20.18 | |||||||||||||
1973 | 0.03 | 0.21 | 1.54 | 0.78 | 1.93 | 0.51 | 0.92 | 3.11 | 4.34 | 1.95 | 0.96 | 0.56 | 16.84 | |||||||||||||
1974 | 0.33 | 0.29 | 0.48 | 2.93 | 3.58 | 0.94 | 2.39 | 1.97 | 0.50 | 1.44 | 0.87 | 0.35 | 16.07 | |||||||||||||
1975 | 0.48 | 0.17 | 1.29 | 2.37 | 2.14 | 5.43 | 0.33 | 1.45 | 1.41 | 1.04 | 0.52 | 0.11 | 16.74 | |||||||||||||
1976 | 0.73 | 0.28 | 1.21 | 1.28 | 0.39 | 5.45 | 1.41 | 0.02 | 0.13 | 0.18 | 0.15 | 0.28 | a | 11.51 | ||||||||||||
1977 | 0.47 | 0.59 | 2.22 | 0.90 | 5.26 | 1.80 | 3.01 | 2.25 | 4.72 | 1.50 | 2.20 | 0.81 | 25.73 | |||||||||||||
1978 | 0.20 | 0.02 | 0.03 | 1.05 | 1.37 | b | 2.69 | 3.13 | 2.32 | 1.65 | 0.32 | 0.33 | 0.47 | 13.58 | ||||||||||||
1979 | 0.52 | 0.51 | 0.76 | a | 3.06 | d | 2.26 | 2.03 | 2.41 | 2.38 | 0.24 | 1.28 | 0.06 | h | 0.18 | 15.63 | a | |||||||||
1980 | 0.11 | a | 0.26 | b | 0.42 | 0.00 | 1.04 | 2.74 | 1.88 | 5.86 | 1.46 | 1.10 | 0.19 | 0.18 | 15.24 | |||||||||||
1981 | 0.11 | 0.27 | 0.66 | 0.73 | 1.69 | 3.81 | 3.79 | 1.17 | 2.65 | 2.94 | 0.47 | 0.54 | 18.83 | |||||||||||||
1982 | 0.23 | 0.09 | 1.11 | a | 0.37 | 2.75 | 2.22 | 2.71 | a | 1.07 | 0.69 | 7.46 | 0.70 | 0.22 | a | 19.62 | ||||||||||
1983 | 0.55 | 0.50 | 1.92 | b | ----- | z | 1.30 | a | 4.93 | 2.15 | 1.38 | 2.35 | 1.60 | 0.20 | b | 0.16 | b | 17.04 | a | |||||||
1984 | 0.89 | ----- | z | 0.90 | b | 2.43 | 0.38 | 3.42 | t | 1.34 | 0.72 | 0.69 | 3.39 | 0.15 | 0.47 | a | 11.36 | b | ||||||||
1985 | 0.06 | a | 0.00 | 0.55 | 0.71 | 3.47 | 2.05 | a | 1.45 | 2.62 | 1.06 | 1.22 | 1.01 | a | 0.07 | c | 14.27 | |||||||||
1986 | 0.13 | 0.00 | c | 0.00 | 4.02 | 2.15 | 2.14 | c | 4.35 | 1.95 | 3.30 | 0.46 | 2.33 | 0.05 | 20.88 | |||||||||||
1987 | 0.18 | 0.54 | 1.00 | 0.04 | 3.99 | 1.30 | a | 4.20 | 3.66 | 1.76 | 0.06 | 0.44 | 0.35 | 17.52 | ||||||||||||
1988 | 0.38 | 0.18 | 0.34 | 0.00 | 0.95 | 1.34 | 1.24 | 2.45 | 2.31 | 0.28 | 0.65 | 0.67 | 10.79 | |||||||||||||
1989 | 0.68 | 0.09 | 0.83 | 0.34 | 2.91 | 1.26 | 0.84 | 7.72 | 0.89 | 0.11 | 0.47 | 0.08 | 16.22 | |||||||||||||
1990 | 0.00 | 0.10 | 1.55 | 1.48 | 0.71 | 5.92 | 1.28 | g | 2.11 | 2.06 | 0.21 | 0.00 | 0.50 | 14.64 | a | |||||||||||
1991 | 0.15 | 0.46 | 0.17 | 2.84 | 5.28 | 4.05 | 2.95 | 0.94 | 2.21 | 2.01 | 0.27 | 0.25 | 21.58 | |||||||||||||
1992 | 0.65 | 0.41 | 0.83 | 0.40 | 2.02 | 4.51 | 2.20 | 3.04 | 2.87 | 0.15 | 1.55 | a | 0.26 | 18.89 | ||||||||||||
1993 | 0.51 | 0.26 | 0.56 | 0.57 | 3.40 | 5.22 | 6.73 | c | 2.64 | 0.34 | 0.00 | 0.52 | 1.12 | 21.87 | ||||||||||||
1994 | 0.82 | 0.23 | a | 0.21 | 1.21 | 1.39 | 5.05 | 4.98 | 4.74 | 5.39 | 2.45 | 1.25 | 0.06 | 27.78 | ||||||||||||
1995 | 0.32 | 0.27 | 1.85 | 0.63 | 2.50 | 0.81 | 5.77 | 2.17 | 2.21 | 2.06 | 0.89 | 0.68 | a | 20.16 | ||||||||||||
1996 | 0.85 | a | 0.49 | 0.42 | b | 0.00 | 2.69 | 2.20 | 5.48 | 0.77 | 4.82 | 1.44 | 1.18 | 0.78 | a | 21.12 | ||||||||||
1997 | 0.95 | 0.24 | 1.35 | 0.62 | 1.31 | 2.65 | 2.56 | 2.03 | 1.91 | 1.79 | c | 0.43 | 0.23 | 16.07 | ||||||||||||
1998 | 0.41 | 1.62 | 0.07 | 0.86 | 3.05 | 3.32 | 0.83 | 2.69 | 0.91 | 5.50 | 1.59 | 0.28 | 21.13 | |||||||||||||
1999 | 0.89 | 0.00 | 0.41 | 1.00 | 4.82 | 1.84 | 2.60 | 1.72 | 3.54 | 0.16 | 0.00 | 0.08 | 17.06 | |||||||||||||
2000 | 0.25 | 2.00 | 0.70 | b | 0.91 | 2.09 | 5.56 | 1.83 | c | 3.96 | c | 1.37 | 2.79 | 2.63 | a | 0.33 | 24.42 | |||||||||
2001 | 0.22 | a | 0.40 | 0.02 | 1.34 | 3.14 | 1.73 | 4.17 | 2.60 | a | 1.77 | 1.13 | 0.21 | 0.18 | 16.91 | |||||||||||
2002 | 0.19 | a | 0.03 | 0.46 | a | 1.45 | a | 1.26 | a | 1.88 | b | 8.31 | e | 3.87 | b | 2.59 | 1.10 | 0.32 | 0.63 | 22.09 | ||||||
2003 | 0.72 | a | 0.08 | 0.44 | 0.67 | 5.40 | 4.25 | 1.94 | 2.09 | 3.36 | 0.53 | a | 0.00 | f | 0.77 | 20.25 | a | |||||||||
2004 | 0.65 | 0.14 | 1.57 | 0.74 | 5.56 | 2.10 | 3.91 | c | 1.93 | 3.92 | 2.53 | 0.22 | 0.68 | 23.95 | ||||||||||||
2005 | 0.71 | 0.18 | 0.04 | 0.58 | 6.16 | 6.11 | 1.91 | f | 3.36 | k | 2.01 | b | 1.13 | b | 0.84 | a | 0.60 | 18.36 | b | |||||||
2006 | 0.77 | 0.43 | b | 1.33 | 1.15 | a | 1.63 | 1.05 | a | 1.00 | 2.86 | 3.01 | 1.49 | e | 0.08 | 2.03 | a | 16.83 | ||||||||
2007 | 0.00 | 0.74 | c | 1.19 | d | 1.32 | a | 3.53 | b | 5.53 | a | 3.53 | 1.41 | 2.99 | 1.96 | 0.00 | a | 0.82 | d | 23.02 | ||||||
2008 | 0.00 | 0.36 | x | 0.37 | 0.17 | b | 0.98 | 4.39 | a | 3.15 | j | 1.62 | e | 2.41 | g | 3.35 | e | 1.61 | c | 1.31 | a | 13.80 | c | |||
2009 | 0.24 | 0.50 | m | 0.96 | q | 1.08 | a | 1.35 | b | 2.16 | a | 0.26 | b | 2.48 | a | 2.37 | 4.25 | 0.18 | 1.07 | a | 15.44 | b | ||||
2010 | 0.37 | g | 0.50 | a | 0.48 | 1.67 | a | 5.87 | c | 2.16 | b | 3.77 | 4.35 | a | 5.40 | 0.00 | ----- | z | ----- | z | 24.20 | c | ||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.41 | 0.34 | 0.73 | 1.31 | 2.55 | 3.23 | 2.80 | 2.54 | 2.14 | 1.31 | 0.64 | 0.46 | 18.49 | |||||||||||||
S.D. | 0.37 | 0.37 | 0.65 | 0.92 | 1.50 | 1.77 | 1.73 | 1.52 | 1.44 | 1.34 | 0.67 | 0.37 | 3.89 | |||||||||||||
SKEW | 2.01 | 2.60 | 1.37 | 0.95 | 0.52 | 0.65 | 0.98 | 0.97 | 0.78 | 2.00 | 1.64 | 1.42 | 0.21 | |||||||||||||
MAX | 2.10 | 2.00 | 3.01 | 4.02 | 6.16 | 7.62 | 8.31 | 7.72 | 6.05 | 7.46 | 3.12 | 2.03 | 27.78 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.51 | 0.20 | 0.02 | 0.04 | 0.00 | 0.00 | 0.00 | 10.79 | |||||||||||||
YRS | 74 | 71 | 74 | 75 | 77 | 74 | 72 | 75 | 74 | 77 | 72 | 74 | 57 |