YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1925 | 0.02 | 0.01 | 0.01 | 0.71 | 4.09 | 0.74 | 3.11 | 2.44 | 6.68 | 1.53 | 0.26 | 0.00 | 19.60 | |||||||||||||
1926 | 0.50 | 0.00 | 2.91 | 3.14 | 5.66 | 2.41 | 0.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.82 | e | |||||||
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 | 1.57 | 2.66 | 1.04 | ----- | z | ----- | z | 5.27 | i | |||
1938 | 0.21 | 1.42 | ----- | z | ----- | z | 3.02 | 2.32 | 1.21 | 0.57 | 0.00 | ----- | z | ----- | z | ----- | z | 8.75 | e | |||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.10 | 0.80 | 0.66 | ----- | z | ----- | z | 2.56 | i | |||
1941 | ----- | z | ----- | z | 2.11 | f | 1.32 | 6.59 | 8.76 | 1.15 | 3.27 | 2.37 | 4.69 | 0.39 | 0.66 | 29.20 | c | |||||||||
1942 | 0.01 | 0.20 | 0.82 | 3.86 | 2.36 | 2.47 | a | 1.82 | 8.12 | a | 2.75 | 3.32 | 0.01 | 2.50 | 28.24 | |||||||||||
1943 | 0.00 | 0.01 | 0.14 | 1.50 | 3.84 | 3.02 | 2.92 | 0.32 | 1.23 | 0.87 | 0.50 | 1.78 | 16.13 | |||||||||||||
1944 | 2.29 | 0.66 | 0.61 | 0.47 | 1.27 | 4.01 | 3.53 | 1.15 | 3.23 | 0.86 | 1.27 | 2.00 | 21.35 | |||||||||||||
1945 | 0.72 | 0.40 | 0.23 | 2.96 | 0.51 | 0.54 | 1.87 | 1.46 | 3.33 | 1.88 | 0.00 | 0.05 | 13.95 | |||||||||||||
1946 | 1.12 | 0.66 | 1.49 | 0.63 | 0.26 | 5.40 | 0.81 | 3.50 | 5.98 | 4.49 | 0.92 | 2.03 | 27.29 | |||||||||||||
1947 | 0.81 | 0.11 | 0.52 | 3.08 | 5.50 | 1.03 | 0.76 | ----- | z | ----- | z | 0.04 | 1.58 | 0.56 | 13.99 | b | ||||||||||
1948 | 0.63 | 1.65 | 1.14 | 0.92 | 2.11 | 4.61 | 2.69 | 2.97 | 1.06 | 0.40 | 1.46 | 0.04 | 19.68 | |||||||||||||
1949 | 4.47 | 0.79 | 0.70 | 1.85 | 6.54 | 3.87 | 4.68 | 3.81 | 3.89 | 2.39 | 0.00 | 0.70 | 33.69 | |||||||||||||
1950 | 0.16 | 0.38 | 0.00 | 0.99 | 0.97 | 4.29 | 7.82 | 3.06 | 7.91 | 0.00 | 0.03 | 0.54 | 26.15 | |||||||||||||
1951 | 0.58 | 0.98 | 0.63 | 0.97 | 4.67 | 2.80 | 4.34 | 0.63 | 1.96 | 1.21 | 0.47 | 0.10 | 19.34 | |||||||||||||
1952 | 1.30 | 0.26 | 0.07 | 2.83 | 1.29 | 0.66 | 1.93 | 0.09 | 0.41 | 0.00 | 1.16 | 0.47 | 10.47 | |||||||||||||
1953 | 1.25 | 0.07 | 0.53 | 0.73 | 1.48 | 0.10 | 2.83 | 5.13 | 0.34 | 2.97 | 0.47 | 0.07 | 15.97 | |||||||||||||
1954 | 0.05 | 0.03 | 0.12 | 1.39 | 3.69 | 2.46 | 1.39 | 2.45 | 0.08 | 0.42 | 0.00 | 0.72 | 12.80 | |||||||||||||
1955 | 0.63 | 0.03 | d | 0.03 | 0.56 | 5.65 | 5.49 | 2.79 | 1.99 | 1.35 | 2.55 | 0.06 | 0.01 | 21.14 | ||||||||||||
1956 | 0.08 | 1.51 | 0.02 | 0.01 | 9.83 | 1.09 | 1.55 | 0.79 | 0.50 | 0.61 | 0.00 | 0.23 | 16.22 | |||||||||||||
1957 | 0.30 | 1.04 | 1.44 | 4.75 | 6.46 | 6.59 | 0.47 | 1.53 | 0.20 | 3.78 | 1.51 | 0.08 | 28.15 | |||||||||||||
1958 | 1.26 | 0.36 | 2.49 | 2.95 | 3.14 | 1.72 | 2.79 | 0.64 | 3.76 | 0.35 | 0.48 | 0.12 | 20.06 | |||||||||||||
1959 | 0.23 | 0.09 | 0.17 | 1.81 | 3.54 | 3.57 | 4.45 | 0.94 | 0.42 | 2.83 | 0.19 | 5.20 | 23.44 | |||||||||||||
1960 | 1.26 | 1.41 | 1.05 | 0.22 | 1.84 | 4.17 | 5.99 | 1.86 | 3.18 | 4.42 | 0.00 | 1.43 | 26.83 | |||||||||||||
1961 | 0.26 | 1.25 | 2.48 | 0.50 | 2.66 | 2.38 | 4.80 | 1.70 | ----- | z | 1.18 | 1.85 | 0.10 | 19.16 | a | |||||||||||
1962 | 0.71 | 0.00 | 0.00 | 0.81 | 1.78 | 7.70 | 3.78 | 1.52 | 2.36 | 1.78 | 0.91 | 0.20 | 21.55 | |||||||||||||
1963 | 0.00 | 0.68 | 0.06 | 0.57 | 2.26 | 5.08 | 1.91 | 3.89 | 2.13 | 0.70 | 1.08 | 0.64 | 19.00 | |||||||||||||
1964 | 0.19 | ----- | z | 0.42 | ----- | z | ----- | z | ----- | z | 0.77 | ----- | z | ----- | z | 0.39 | 1.49 | 1.09 | 4.35 | f | ||||||
1965 | 0.16 | 0.10 | 0.51 | 1.71 | 1.24 | 5.35 | ----- | z | 1.84 | ----- | z | 0.77 | ----- | z | 0.27 | 11.95 | c | |||||||||
1966 | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | 6.51 | 1.00 | 6.37 | 3.18 | 0.23 | 0.06 | 0.10 | 17.45 | d | ||||||||
1967 | 0.00 | 0.54 | 0.49 | 0.18 | 1.18 | 3.47 | 4.72 | 1.36 | 1.08 | 0.49 | 0.32 | 0.30 | 14.13 | |||||||||||||
1968 | 2.15 | 0.65 | 2.00 | 2.56 | 3.82 | 3.82 | 1.10 | 4.39 | 0.93 | 0.90 | 0.83 | 0.15 | 23.30 | |||||||||||||
1969 | 0.00 | 0.59 | 1.36 | 0.88 | 3.38 | 3.45 | 1.70 | 3.33 | 4.42 | 3.93 | 0.60 | 0.62 | 24.26 | |||||||||||||
1970 | 0.00 | 0.04 | 1.34 | 0.80 | 0.50 | 1.92 | 1.20 | 1.56 | 1.20 | 1.50 | 0.55 | 0.00 | 10.61 | |||||||||||||
1971 | 0.00 | 0.73 | 0.10 | 0.91 | 2.96 | 3.12 | 1.30 | 4.82 | 4.90 | 2.00 | 0.50 | 1.05 | 22.39 | |||||||||||||
1972 | 0.10 | 0.10 | 0.10 | 0.43 | 3.56 | 3.55 | 3.36 | 2.14 | 1.15 | 1.50 | 1.85 | 0.55 | 18.39 | |||||||||||||
1973 | 0.77 | 0.67 | 5.32 | 3.90 | 1.65 | 0.72 | 2.65 | 4.70 | 5.60 | 1.08 | 0.00 | 0.00 | 27.06 | |||||||||||||
1974 | 0.42 | 0.03 | 2.00 | 1.40 | 2.37 | 2.00 | 0.10 | 6.05 | 5.87 | 4.55 | 0.55 | 0.70 | 26.04 | |||||||||||||
1975 | 0.72 | 1.33 | 0.75 | 0.87 | 2.85 | 3.39 | 3.35 | 0.76 | 2.55 | 0.20 | 2.15 | 0.55 | 19.47 | |||||||||||||
1976 | 0.00 | 0.00 | 0.67 | 2.61 | 1.14 | 2.77 | 4.09 | 1.90 | 3.76 | 1.93 | 0.42 | 0.00 | 19.29 | |||||||||||||
1977 | 0.20 | 1.07 | 0.75 | 3.28 | 6.25 | 2.68 | 2.00 | 3.52 | 0.15 | 1.60 | 0.03 | 0.00 | 21.53 | |||||||||||||
1978 | 0.40 | 1.37 | 0.40 | 0.60 | 6.93 | 5.02 | 0.36 | 3.35 | 5.49 | 0.28 | 1.50 | 0.07 | 25.77 | |||||||||||||
1979 | 0.85 | 0.53 | 3.03 | 1.42 | 4.15 | 11.14 | 3.50 | 3.08 | 1.06 | 1.48 | 0.66 | 0.16 | 31.06 | |||||||||||||
1980 | 0.54 | 1.31 | 1.34 | 1.35 | 3.39 | 3.26 | 0.65 | 1.94 | 3.30 | 0.85 | 1.00 | 0.78 | 19.71 | |||||||||||||
1981 | 0.14 | 0.27 | 1.01 | 1.47 | 1.38 | 0.88 | 2.93 | 3.83 | 1.44 | 2.44 | 0.97 | 0.04 | 16.80 | |||||||||||||
1982 | 0.37 | 0.40 | 0.94 | 0.22 | 6.60 | 7.15 | 2.83 | 1.00 | 0.39 | 0.20 | 1.50 | 1.45 | 23.05 | |||||||||||||
1983 | 1.45 | 1.87 | 0.20 | 1.13 | 2.15 | 2.58 | 0.12 | 0.60 | 2.35 | 6.00 | 0.52 | 1.15 | a | 20.12 | ||||||||||||
1984 | 0.19 | 1.15 | 0.54 | 0.71 | 0.54 | 4.34 | 1.35 | 4.10 | 0.85 | 1.22 | 1.87 | 1.55 | 18.41 | |||||||||||||
1985 | 0.85 | 0.40 | 2.80 | 1.45 | 1.75 | 6.75 | 3.70 | 1.65 | 4.85 | 4.15 | 0.21 | 0.50 | 29.06 | |||||||||||||
1986 | 0.00 | 1.08 | 0.30 | 1.60 | 3.45 | 6.57 | 0.16 | 7.35 | 2.80 | 5.10 | 2.30 | 0.75 | 31.46 | |||||||||||||
1987 | 0.80 | a | 1.50 | r | 0.42 | 0.10 | 6.60 | 3.15 | 4.85 | 3.70 | 2.10 | 0.60 | 0.50 | 2.35 | 25.17 | a | ||||||||||
1988 | 0.30 | 0.18 | 1.10 | 3.15 | 1.50 | 5.80 | 3.08 | 3.15 | 4.00 | 0.00 | 0.50 | a | 0.30 | 23.06 | ||||||||||||
1989 | 0.55 | 0.85 | ----- | z | 0.05 | 3.05 | 6.05 | 0.70 | 2.55 | 5.20 | 0.15 | 0.00 | 0.50 | 19.65 | a | |||||||||||
1990 | 0.65 | 1.70 | 1.30 | 2.65 | 1.82 | 1.65 | 2.46 | 0.65 | 1.24 | 0.81 | 1.15 | 0.22 | 16.30 | |||||||||||||
1991 | 0.72 | 0.08 | 0.36 | a | 0.00 | 6.56 | 4.17 | a | 2.86 | 1.39 | 4.76 | 1.21 | 0.83 | 2.41 | 25.35 | |||||||||||
1992 | 0.89 | 1.31 | 0.73 | 1.55 | 5.32 | 6.83 | 3.00 | 0.45 | 0.33 | 0.00 | 1.85 | 0.82 | 23.08 | |||||||||||||
1993 | 1.65 | 0.52 | 1.12 | 0.90 | 1.59 | 0.78 | 3.16 | 2.24 | 0.43 | 1.26 | 0.57 | 0.87 | 15.09 | |||||||||||||
1994 | 1.04 | 0.14 | 1.46 | 2.63 | 3.08 | 0.83 | 1.74 | 0.98 | 2.78 | 0.78 | 0.68 | 0.41 | 16.55 | |||||||||||||
1995 | 0.45 | 0.00 | c | 0.73 | 1.44 | 4.07 | 2.66 | 1.39 | 3.56 | 4.40 | 0.51 | 0.21 | 1.23 | 20.65 | ||||||||||||
1996 | 0.10 | 0.12 | 0.17 | 0.00 | 1.34 | 2.54 | 7.56 | 4.61 | 2.09 | 0.32 | 1.15 | 0.12 | 20.12 | |||||||||||||
1997 | 0.50 | 1.82 | 0.03 | 6.40 | 3.91 | 4.94 | 2.32 | 3.72 | 3.55 | 1.23 | 0.63 | 1.85 | 30.90 | |||||||||||||
1998 | 0.00 | 2.69 | 2.82 | 0.73 | 1.10 | 1.09 | 2.02 | 3.96 | 0.56 | 5.43 | 1.31 | 0.40 | 22.11 | |||||||||||||
1999 | 2.27 | 0.02 | 1.65 | 2.29 | 4.82 | c | 3.28 | 0.87 | 0.91 | 2.18 | 0.42 | 0.00 | 1.07 | 19.78 | ||||||||||||
2000 | 0.16 | 0.00 | 2.52 | 2.39 | 0.80 | 9.10 | 0.46 | 0.00 | 0.01 | 3.04 | 1.45 | 0.88 | 20.81 | |||||||||||||
2001 | 1.94 | 0.87 | 3.23 | 1.12 | o | 5.26 | 0.93 | 0.32 | c | 4.42 | 1.94 | 0.02 | 2.02 | 0.21 | 21.16 | a | ||||||||||
2002 | 0.74 | 0.50 | 0.64 | a | 1.35 | 1.05 | 2.34 | 1.65 | 5.07 | 1.44 | 3.85 | 0.47 | 1.48 | 20.58 | ||||||||||||
2003 | 0.01 | 0.06 | 0.99 | 0.79 | 0.55 | 6.23 | 0.12 | 0.50 | c | 0.48 | 0.57 | 0.23 | 0.00 | 10.53 | ||||||||||||
2004 | 2.68 | 1.84 | 2.05 | 3.09 | 0.11 | 11.77 | 3.06 | 2.73 | 0.83 | 3.91 | 5.24 | 0.52 | 37.83 | |||||||||||||
2005 | 1.18 | 0.70 | 1.25 | 1.59 | 4.19 | 4.75 | 2.02 | 5.18 | 0.18 | 1.52 | 0.05 | 0.00 | 22.61 | |||||||||||||
2006 | 0.05 | 0.69 | 1.65 | 0.26 | 2.35 | 1.11 | 0.50 | 4.33 | 3.54 | 2.79 | 0.34 | 2.82 | 20.43 | |||||||||||||
2007 | 0.91 | 0.20 | 5.58 | 0.87 | 3.34 | 2.38 | 2.91 | 1.24 | 4.49 | 0.14 | 0.12 | c | 1.56 | 23.74 | ||||||||||||
2008 | 0.00 | 0.88 | 0.07 | 1.25 | 3.81 | 3.72 | b | 1.49 | d | 3.33 | 3.90 | 4.39 | 0.09 | 0.00 | 22.93 | |||||||||||
2009 | 0.05 | 0.61 | 0.74 | 2.15 | 0.74 | 5.82 | 5.40 | 3.07 | 1.35 | 1.42 | 0.32 | 0.63 | 22.30 | |||||||||||||
2010 | 1.10 | 1.35 | 2.67 | b | 5.60 | 2.15 | 3.37 | 4.14 | a | 2.17 | 0.88 | 2.74 | 0.65 | 0.07 | 26.89 | |||||||||||
2011 | 0.00 | 0.28 | a | 0.00 | 0.00 | 0.46 | 0.13 | 1.11 | 0.31 | 0.53 | 2.12 | 0.37 | 1.26 | 6.57 | ||||||||||||
2012 | 0.00 | 0.47 | 0.98 | 0.57 | 2.30 | 2.03 | 1.33 | 2.66 | 5.96 | 0.22 | 0.01 | 0.66 | 17.19 | |||||||||||||
2013 | 0.66 | 2.33 | 0.39 | 0.37 | 0.58 | 3.36 | 2.36 | 0.95 | 2.23 | 1.25 | 0.96 | 0.12 | 15.56 | |||||||||||||
2014 | 0.00 | 0.14 | 0.15 | 0.30 | 4.33 | 4.80 | 3.19 | 0.66 | 2.18 | 0.29 | 2.22 | 0.09 | 18.35 | |||||||||||||
2015 | 1.05 | a | 0.56 | 0.45 | 4.62 | 9.66 | 4.90 | 5.74 | 1.77 | 0.55 | 6.30 | 1.00 | 0.82 | 37.42 | ||||||||||||
2016 | 0.09 | 0.30 | 0.01 | 3.13 | 3.01 | 5.33 | 3.02 | 4.08 | 2.55 | 0.84 | 1.56 | 0.70 | 24.62 | |||||||||||||
2017 | 1.97 | 1.25 | 2.00 | 2.30 | 1.05 | 4.15 | 2.70 | 5.16 | 2.36 | 1.81 | 0.00 | 0.00 | 24.75 | |||||||||||||
2018 | 0.01 | 0.58 | 0.35 | 0.27 | 2.22 | 2.09 | 0.96 | 4.26 | 5.59 | 3.38 | 0.05 | 1.08 | 20.84 | |||||||||||||
2019 | 0.00 | 0.15 | 2.20 | 1.27 | 2.71 | 2.60 | 0.30 | 1.05 | 6.09 | 1.46 | 0.84 | 0.90 | 19.57 | |||||||||||||
2020 | 0.53 | 1.89 | 1.97 | 0.28 | 2.25 | 0.55 | a | 2.14 | 3.34 | 1.00 | 1.50 | 0.20 | 0.37 | 16.02 | ||||||||||||
2021 | 1.07 | 0.28 | 0.97 | 0.48 | 3.72 | 4.24 | 3.30 | 2.02 | 0.13 | 1.53 | 0.06 | 0.06 | 17.86 | |||||||||||||
2022 | 0.17 | 0.21 | 0.49 | 0.00 | 2.08 | 2.01 | 1.50 | 5.45 | 0.54 | 2.45 | 0.62 | 0.77 | 16.29 | |||||||||||||
2023 | 0.60 | 0.44 | 0.16 | 1.08 | 7.07 | 2.00 | 2.68 | 0.78 | 1.36 | 0.83 | 0.22 | 3.02 | 20.24 | |||||||||||||
2024 | 0.75 | 0.52 | 0.51 | b | 2.50 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.78 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.64 | 0.66 | 1.05 | 1.52 | 3.13 | 3.66 | 2.39 | 2.62 | 2.41 | 1.73 | 0.76 | 0.75 | 21.33 | |||||||||||||
S.D. | 0.75 | 0.62 | 1.10 | 1.34 | 2.13 | 2.36 | 1.65 | 1.76 | 1.91 | 1.56 | 0.81 | 0.87 | 5.83 | |||||||||||||
SKEW | 2.23 | 1.04 | 1.83 | 1.34 | 0.94 | 1.02 | 0.94 | 0.71 | 0.74 | 1.08 | 2.36 | 2.26 | 0.39 | |||||||||||||
MAX | 4.47 | 2.69 | 5.58 | 6.40 | 9.83 | 11.77 | 7.82 | 8.12 | 7.91 | 6.30 | 5.24 | 5.20 | 37.83 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.10 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.57 | |||||||||||||
YRS | 85 | 83 | 84 | 82 | 84 | 85 | 85 | 85 | 83 | 86 | 83 | 84 | 75 |