YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.59 | 3.10 | 0.18 | 0.03 | 2.22 | 1.98 | 13.10 | f | ||||||
1924 | 0.18 | 0.00 | 0.85 | 1.14 | 0.05 | ----- | z | 1.66 | 1.80 | 0.65 | 0.00 | 0.00 | 0.29 | 6.62 | a | |||||||||||
1925 | 0.13 | 0.00 | 0.08 | 0.05 | 0.28 | 1.23 | 2.55 | 2.18 | 1.11 | 0.90 | 0.67 | 0.30 | 9.48 | |||||||||||||
1926 | 0.53 | 0.54 | 2.19 | 1.46 | 0.76 | 0.10 | 1.03 | 0.73 | 4.78 | 0.32 | 0.00 | 1.26 | a | 13.70 | ||||||||||||
1927 | 0.00 | 0.37 | 0.47 | 0.21 | 0.13 | 0.24 | 2.88 | 1.85 | b | 4.55 | 0.09 | 0.32 | 0.54 | 11.65 | ||||||||||||
1928 | 0.00 | 1.63 | 0.00 | 0.00 | 0.28 | 0.00 | 1.30 | 3.97 | 0.15 | 2.57 | 0.41 | 0.30 | 10.61 | |||||||||||||
1929 | 0.32 | 0.31 | 0.28 | 0.13 | 0.01 | 0.19 | 4.10 | 3.38 | 3.51 | 0.81 | 0.17 | 0.51 | 13.72 | |||||||||||||
1930 | 1.15 | 0.38 | 1.24 | 0.16 | 0.46 | 0.54 | 3.28 | 2.79 | 1.66 | 0.00 | 1.45 | 0.41 | 13.52 | |||||||||||||
1931 | 0.62 | 3.05 | 0.00 | 0.91 | 0.29 | 2.66 | 1.29 | 4.19 | 3.99 | 1.73 | 1.14 | 0.38 | 20.25 | |||||||||||||
1932 | 0.49 | 1.34 | 0.21 | 0.05 | 0.01 | 0.03 | 6.58 | 0.97 | 0.03 | 0.21 | 0.00 | 1.56 | 11.48 | |||||||||||||
1933 | 0.78 | 0.64 | 0.00 | 0.05 | 0.00 | 1.73 | 2.55 | 1.70 | 1.98 | 0.95 | 0.84 | 0.02 | 11.24 | |||||||||||||
1934 | 0.42 | 0.88 | 0.08 | 0.07 | 0.17 | 0.36 | 1.85 | 2.99 | 1.79 | 0.37 | 1.00 | 1.93 | 11.91 | |||||||||||||
1935 | 1.02 | 1.49 | 0.76 | 0.00 | 0.00 | 0.00 | 1.77 | 4.15 | 1.16 | 0.00 | 1.64 | 1.57 | 13.56 | |||||||||||||
1936 | 0.67 | 0.78 | 0.28 | 0.00 | 0.00 | 0.38 | 0.55 | 1.54 | 1.63 | 0.01 | 1.94 | 0.50 | 8.28 | |||||||||||||
1937 | 0.80 | 0.84 | 0.57 | 0.03 | 0.20 | 0.33 | 2.42 | 2.66 | 2.05 | 1.01 | 0.00 | 1.57 | 12.48 | |||||||||||||
1938 | 0.67 | 0.73 | 0.35 | 0.11 | 0.02 | 1.26 | 3.23 | 3.41 | 0.69 | 0.00 | 0.00 | 1.00 | 11.47 | |||||||||||||
1939 | 0.18 | 1.05 | 0.12 | 0.43 | 0.00 | 0.02 | 2.43 | 5.03 | 1.68 | 0.51 | 0.94 | 0.67 | 13.06 | |||||||||||||
1940 | 0.10 | 2.10 | 0.09 | 0.03 | 0.12 | 3.28 | 3.11 | 4.75 | 1.62 | 0.10 | 1.00 | 2.88 | 19.18 | |||||||||||||
1941 | 1.41 | 1.43 | 0.53 | 0.84 | 0.51 | 0.00 | 3.04 | 3.66 | 2.26 | 0.32 | 0.28 | 2.38 | 16.66 | |||||||||||||
1942 | 0.61 | 0.80 | 0.10 | 0.67 | 0.00 | 0.00 | 2.51 | 1.97 | 2.24 | 0.53 | 0.00 | 0.52 | 9.95 | |||||||||||||
1943 | 0.73 | 0.06 | 0.49 | 0.00 | 0.00 | 1.55 | 3.54 | 6.07 | 1.61 | 0.67 | 0.00 | 0.66 | 15.38 | |||||||||||||
1944 | 0.36 | a | 0.27 | 0.91 | 0.18 | 0.00 | 0.91 | 2.02 | 3.94 | 2.04 | 1.76 | 1.10 | 0.94 | 14.43 | ||||||||||||
1945 | 0.54 | 0.33 | 0.25 | 0.06 | 0.00 | 0.00 | 2.57 | 1.61 | 0.16 | 0.40 | 0.00 | 0.12 | 6.04 | |||||||||||||
1946 | 1.81 | 0.03 | 0.33 | 0.11 | 0.00 | 0.10 | 2.32 | 4.48 | 1.03 | 1.28 | 0.62 | 0.45 | 12.56 | |||||||||||||
1947 | 0.40 | 0.04 | 0.46 | 0.04 | 0.46 | 0.42 | 0.67 | 1.59 | 0.09 | 0.31 | 0.46 | 0.67 | 5.61 | |||||||||||||
1948 | 0.02 | 1.38 | 0.15 | 0.00 | 0.00 | 0.00 | 3.37 | 1.53 | 1.04 | 0.33 | 0.00 | 1.20 | a | 9.02 | ||||||||||||
1949 | 2.43 | a | 0.57 | 0.10 | 0.07 | 0.00 | 1.14 | 3.62 | 1.17 | 2.49 | 0.81 | 0.06 | 1.03 | 13.49 | ||||||||||||
1950 | 0.20 | 0.88 | 0.06 | 0.00 | 0.00 | 1.98 | 5.21 | 0.65 | 0.05 | 0.02 | 0.00 | 0.00 | 9.05 | |||||||||||||
1951 | 0.70 | 0.41 | 0.31 | 1.43 | 0.08 | 0.00 | 1.95 | 3.19 | 0.87 | 1.50 | 0.53 | 1.08 | 12.05 | |||||||||||||
1952 | 0.28 | 0.30 | 1.10 | 1.14 | 0.10 | 1.63 | 2.60 | 2.36 | 1.15 | 0.00 | 1.20 | 0.46 | 12.32 | |||||||||||||
1953 | 0.02 | 0.96 | 0.84 | 0.28 | 0.00 | 0.00 | 2.96 | 0.43 | 0.00 | 0.17 | 0.06 | 0.11 | 5.83 | |||||||||||||
1954 | 0.82 | 0.23 | 0.84 | 0.00 | 1.35 | 1.06 | 2.55 | 6.90 | 0.75 | 0.42 | 0.00 | 0.00 | 14.92 | |||||||||||||
1955 | 1.28 | 0.16 | 0.10 | 0.00 | 0.00 | 0.34 | 5.00 | 5.78 | 0.00 | 0.45 | 0.00 | 0.33 | 13.44 | |||||||||||||
1956 | 0.66 | 0.47 | 0.00 | 0.08 | 0.00 | 0.13 | 3.92 | 1.76 | 0.13 | 0.32 | 0.00 | 0.14 | 7.61 | |||||||||||||
1957 | 1.18 | 0.23 | 0.92 | 0.28 | 0.18 | 0.30 | 1.75 | 6.00 | 0.00 | 1.55 | 0.10 | 0.22 | 12.71 | |||||||||||||
1958 | 0.00 | 1.50 | 2.63 | 0.87 | 0.00 | 0.54 | 5.59 | 3.94 | 3.55 | 0.58 | 0.44 | 0.00 | 19.64 | |||||||||||||
1959 | 0.00 | 0.47 | 0.00 | 0.17 | 0.00 | 0.33 | 6.38 | 3.00 | 0.65 | 2.04 | 0.83 | 1.06 | 14.93 | |||||||||||||
1960 | 1.86 | 0.27 | 0.38 | 0.00 | 0.00 | 0.03 | 1.08 | 1.64 | 1.32 | 1.47 | 0.02 | 0.79 | 8.86 | |||||||||||||
1961 | 0.61 | 0.19 | 0.13 | 0.00 | 0.00 | 0.54 | 1.81 | 5.32 | 1.98 | 1.38 | 0.70 | 1.16 | 13.82 | |||||||||||||
1962 | 2.19 | 0.13 | 0.11 | 0.00 | 0.00 | 0.01 | 2.26 | 0.54 | 2.06 | 0.30 | 0.51 | 1.22 | 9.33 | |||||||||||||
1963 | 0.39 | 0.39 | 0.09 | 0.17 | 0.02 | 0.00 | 2.77 | 5.50 | 1.40 | 0.74 | 1.42 | 0.10 | 12.99 | |||||||||||||
1964 | 0.38 | 0.00 | 0.47 | 0.37 | 0.00 | 0.00 | 3.86 | 2.65 | 5.57 | 1.64 | 1.04 | 0.08 | 16.06 | |||||||||||||
1965 | 0.37 | 0.15 | 0.45 | 0.00 | 0.12 | 0.14 | 3.66 | 1.72 | 1.28 | 0.00 | 0.32 | 4.20 | 12.41 | |||||||||||||
1966 | 1.02 | 1.37 | 0.05 | 0.48 | 0.00 | 0.83 | 3.75 | 4.75 | 2.61 | 0.03 | 0.69 | 0.20 | 15.78 | |||||||||||||
1967 | 0.00 | 0.28 | 0.25 | 0.29 | 0.22 | 0.12 | 5.12 | 3.09 | 2.78 | 0.78 | 0.25 | 3.64 | 16.82 | |||||||||||||
1968 | 0.65 | 1.21 | 0.94 | 0.58 | 0.00 | 0.00 | 3.30 | 5.29 | 0.56 | 0.06 | 0.42 | 0.54 | 13.55 | |||||||||||||
1969 | 0.41 | 0.72 | 0.42 | 0.00 | 0.42 | 0.00 | 2.86 | 2.53 | 0.85 | 0.03 | 0.37 | 0.44 | 9.05 | |||||||||||||
1970 | 0.00 | 0.52 | 1.30 | 0.00 | 0.43 | 2.00 | 4.47 | 5.42 | ----- | z | 1.26 | 0.00 | 0.45 | 15.85 | a | |||||||||||
1971 | 0.13 | 0.62 | 0.00 | 0.12 | 0.00 | 0.00 | 3.17 | 6.96 | 1.83 | 1.64 | 0.30 | 1.24 | 16.01 | |||||||||||||
1972 | 0.18 | 0.00 | 0.02 | 0.00 | 0.12 | 4.39 | 3.64 | 4.27 | 1.73 | 3.56 | 1.17 | 0.57 | 19.65 | |||||||||||||
1973 | 0.45 | 1.94 | 1.61 | 0.00 | 0.07 | 0.34 | 3.61 | 1.11 | 0.12 | 0.00 | 0.39 | 0.09 | 9.73 | |||||||||||||
1974 | 1.35 | 0.02 | 0.33 | 0.03 | 0.05 | 0.02 | 7.95 | 1.32 | 2.80 | 1.93 | 0.17 | 0.23 | 16.20 | |||||||||||||
1975 | 0.86 | 0.14 | 0.79 | 0.32 | 0.00 | 0.02 | 3.32 | 1.49 | 1.63 | 0.00 | 0.77 | 0.46 | 9.80 | |||||||||||||
1976 | 0.53 | 0.55 | 0.18 | 0.48 | 0.66 | 0.64 | 9.50 | 4.16 | 2.07 | 0.88 | 0.39 | 0.20 | 20.24 | |||||||||||||
1977 | 1.91 | 0.02 | 0.47 | 0.07 | 0.08 | 0.13 | 3.09 | 3.14 | ----- | z | 3.16 | 0.18 | 0.80 | 13.05 | a | |||||||||||
1978 | 2.24 | 1.79 | 0.63 | 0.00 | 0.43 | 0.75 | 3.18 | a | 1.44 | 1.09 | 2.55 | 1.33 | 1.34 | 16.77 | ||||||||||||
1979 | 2.79 | ----- | z | 0.74 | 0.00 | 0.50 | 1.35 | 2.27 | 2.01 | 0.27 | 0.11 | 0.17 | 0.37 | 10.58 | a | |||||||||||
1980 | 0.51 | 1.98 | 0.48 | 0.12 | 0.00 | 0.57 | 2.77 | 0.86 | 0.94 | 0.00 | 0.08 | 0.28 | 8.59 | |||||||||||||
1981 | 1.22 | 0.60 | 1.64 | 0.31 | 0.12 | 0.14 | 4.09 | 0.41 | 1.19 | 0.40 | 0.19 | 0.00 | 10.31 | |||||||||||||
1982 | 1.26 | 0.19 | 0.44 | a | 0.00 | 1.35 | 0.00 | 1.55 | 4.22 | 4.37 | 0.00 | 1.15 | 1.33 | 15.86 | ||||||||||||
1983 | 1.26 | 1.23 | 1.53 | 0.64 | 0.00 | 0.00 | 1.94 | 3.31 | 5.14 | 2.85 | 1.45 | 0.69 | 20.04 | |||||||||||||
1984 | 1.81 | a | 0.00 | 0.00 | 0.42 | 0.33 | 0.56 | 5.03 | 2.85 | 1.71 | 1.50 | 0.92 | 3.49 | 18.62 | ||||||||||||
1985 | 1.83 | 0.62 | 0.28 | 0.94 | 0.09 | 0.26 | 3.55 | 2.83 | 2.36 | 2.26 | 0.51 | 0.08 | 15.61 | |||||||||||||
1986 | 0.12 | 1.38 | 0.77 | 0.00 | 0.20 | 0.76 | 1.16 | 7.77 | 0.39 | 1.36 | 0.70 | 2.83 | 17.44 | |||||||||||||
1987 | ----- | z | ----- | z | ----- | z | 2.32 | 0.35 | 0.33 | 1.13 | 3.42 | 2.56 | 0.14 | 0.00 | 2.40 | 12.65 | c | |||||||||
1988 | 0.66 | 0.10 | 0.03 | 0.54 | 0.00 | 0.60 | 4.15 | 5.58 | 0.66 | 3.98 | 0.25 | 0.05 | 16.60 | |||||||||||||
1989 | 1.30 | 0.23 | 0.27 | 0.00 | 0.32 | 0.00 | 4.63 | 0.89 | 1.05 | 3.53 | 0.02 | 0.01 | 12.25 | |||||||||||||
1990 | 0.51 | 0.45 | 0.42 | ----- | z | ----- | z | 0.36 | 2.86 | 2.57 | 1.63 | 1.16 | 0.98 | 0.99 | 11.93 | b | ||||||||||
1991 | 1.55 | 1.58 | 0.59 | a | 0.00 | 0.00 | 0.29 | 3.64 | 3.53 | 1.55 | 0.17 | 0.26 | 2.76 | 15.92 | ||||||||||||
1992 | 1.34 | 1.07 | 2.56 | 0.40 | 1.88 | 0.02 | 2.34 | 3.37 | 0.63 | 0.11 | 0.03 | 3.14 | 16.89 | |||||||||||||
1993 | 4.24 | o | 0.87 | 0.68 | 0.00 | 0.26 | 0.12 | 2.91 | 6.99 | h | 0.67 | 0.31 | 0.50 | ----- | z | 6.32 | c | |||||||||
1994 | 0.17 | 0.35 | 0.98 | 0.34 | 0.27 | 0.37 | 1.66 | 1.89 | 0.93 | 0.33 | 2.45 | a | 3.44 | 13.18 | ||||||||||||
1995 | 0.75 | 1.71 | 0.58 | 0.17 | 0.00 | 0.00 | 1.82 | 4.64 | 0.99 | 0.81 | 0.80 | 0.38 | 12.65 | |||||||||||||
1996 | 0.00 | 0.65 | 0.00 | ----- | z | 0.00 | 1.21 | 2.43 | 1.00 | 0.47 | 0.68 | 0.08 | 0.00 | 6.52 | a | |||||||||||
1997 | 1.28 | b | 0.31 | 0.25 | 0.21 | 0.27 | 0.13 | 1.64 | 3.86 | 2.53 | 0.48 | 0.34 | 2.42 | 13.72 | ||||||||||||
1998 | 0.11 | 2.08 | 0.95 | 0.11 | 0.00 | 1.08 | 3.53 | 2.11 | 0.07 | 0.21 | 0.43 | 0.26 | 10.94 | |||||||||||||
1999 | 0.08 | 0.00 | 0.07 | 0.67 | 0.00 | 0.05 | 6.78 | 5.51 | 1.17 | 0.00 | 0.00 | 0.00 | 14.33 | |||||||||||||
2000 | 0.09 | 0.30 | 0.57 | 0.00 | 0.00 | 1.32 | 1.42 | 3.61 | 0.15 | 6.18 | 1.14 | a | 0.00 | 14.78 | ||||||||||||
2001 | 0.97 | 0.51 | 0.26 | 0.86 | 0.30 | 0.07 | 3.23 | c | 4.12 | 1.98 | 1.16 | 0.13 | 0.43 | 14.02 | ||||||||||||
2002 | 0.10 | 0.57 | 0.00 | 0.00 | 0.00 | 0.05 | 1.66 | 1.83 | 1.13 | 0.52 | 0.29 | 0.84 | 6.99 | |||||||||||||
2003 | 0.18 | 1.33 | 0.25 | 0.00 | 0.00 | 0.11 | 1.11 | 1.72 | 1.54 | 0.66 | 0.66 | 0.05 | 7.61 | |||||||||||||
2004 | 1.16 | 0.40 | 1.00 | 1.50 | 0.00 | 0.16 | 1.13 | 2.31 | 0.53 | 0.18 | 0.65 | 0.43 | 9.45 | |||||||||||||
2005 | 0.99 | 0.99 | 0.22 | 0.20 | 0.13 | 0.00 | 1.89 | 2.36 | 1.13 | 0.01 | 0.00 | 0.12 | 8.04 | |||||||||||||
2006 | 0.06 | 0.05 | 0.04 | 0.00 | 0.00 | 0.33 | 4.32 | 2.41 | 3.93 | 0.62 | 0.00 | ----- | z | 11.76 | a | |||||||||||
2007 | 0.78 | 0.05 | 1.64 | 0.19 | 0.55 | 0.41 | 3.44 | ----- | z | ----- | z | ----- | z | 1.01 | 1.31 | 9.38 | c | |||||||||
2008 | ----- | z | ----- | z | 0.00 | 0.00 | 0.06 | 0.41 | b | ----- | z | 3.54 | 2.47 | a | 0.00 | 0.45 | 0.17 | 7.10 | c | |||||||
2009 | 0.56 | 0.23 | 0.00 | 0.02 | 0.41 | ----- | z | ----- | z | ----- | z | ----- | z | 0.26 | f | 0.10 | c | 0.29 | 1.61 | e | ||||||
2010 | 1.60 | 1.19 | 0.48 | 0.27 | 0.00 | 0.00 | 3.57 | 4.81 | ----- | z | ----- | z | 0.00 | v | 0.30 | 12.22 | c | |||||||||
2011 | 0.30 | 0.50 | 0.00 | 0.10 | 0.00 | 0.16 | 1.52 | x | 1.55 | 1.87 | 0.08 | 0.63 | 1.67 | 6.86 | a | |||||||||||
2012 | 0.07 | 0.13 | 0.09 | b | 0.00 | 0.40 | 0.25 | 1.65 | g | 2.55 | 1.79 | 0.00 | q | ----- | z | 0.72 | b | 6.00 | c | |||||||
2013 | 0.12 | d | 0.00 | r | ----- | z | ----- | z | ----- | z | 0.00 | o | 4.03 | 2.85 | c | 1.20 | b | 0.00 | b | 0.35 | b | 0.42 | d | 8.97 | e | |
2014 | 0.00 | e | 0.08 | d | 0.55 | g | 0.03 | l | 0.00 | k | 0.08 | j | 2.66 | e | 2.85 | 5.27 | 1.23 | 0.00 | 1.02 | 13.11 | d | |||||
2015 | 2.42 | 0.28 | b | 0.36 | a | 0.15 | 0.05 | 0.62 | 2.14 | f | 4.77 | a | 0.85 | d | 0.97 | f | 0.75 | c | 0.38 | e | 10.63 | b | ||||
2016 | 1.25 | b | 0.13 | 0.19 | 0.13 | 0.03 | 0.37 | 3.52 | 1.03 | 3.71 | 0.02 | 0.23 | 1.27 | 11.88 | ||||||||||||
2017 | 0.80 | 0.42 | 0.12 | 0.13 | 0.02 | 0.33 | 3.61 | 1.54 | 0.08 | 0.02 | 0.25 | 0.23 | 7.55 | |||||||||||||
2018 | 0.05 | 1.69 | b | 0.00 | 0.00 | 0.00 | 0.48 | 1.94 | 4.36 | 0.79 | 3.00 | 0.17 | 0.86 | a | 13.34 | |||||||||||
2019 | 2.00 | 0.25 | 0.85 | f | 0.08 | 0.62 | b | 0.00 | a | 1.24 | 3.77 | 7.44 | a | 0.00 | 3.06 | 1.02 | 19.48 | a | ||||||||
2020 | 0.58 | b | 1.05 | 2.41 | 0.00 | 0.00 | 0.02 | 1.26 | 0.93 | 1.38 | 0.00 | 0.00 | 0.60 | 8.23 | ||||||||||||
2021 | 1.34 | 0.10 | 0.45 | 0.00 | 0.00 | 0.04 | 5.44 | 6.76 | 1.75 | 0.00 | 0.20 | 0.28 | 16.36 | |||||||||||||
2022 | 0.14 | 0.05 | 0.16 | 0.00 | 0.00 | 1.22 | 1.69 | 4.06 | 0.68 | 0.82 | 0.15 | 0.91 | 9.88 | |||||||||||||
2023 | 0.67 | 0.20 | c | 2.44 | 0.00 | 0.49 | 0.00 | 0.76 | 2.07 | 1.11 | 0.00 | 0.10 | 1.70 | 9.54 | ||||||||||||
2024 | 1.21 | 1.69 | 0.33 | 0.37 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.23 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.75 | 0.67 | 0.52 | 0.26 | 0.18 | 0.49 | 3.04 | 3.08 | 1.64 | 0.83 | 0.52 | 0.88 | 12.83 | |||||||||||||
S.D. | 0.66 | 0.63 | 0.60 | 0.41 | 0.31 | 0.73 | 1.59 | 1.67 | 1.41 | 1.08 | 0.58 | 0.93 | 3.62 | |||||||||||||
SKEW | 0.97 | 1.18 | 1.86 | 2.45 | 3.07 | 2.72 | 1.24 | 0.55 | 1.54 | 2.17 | 1.74 | 1.61 | 0.11 | |||||||||||||
MAX | 2.79 | 3.05 | 2.63 | 2.32 | 1.88 | 4.39 | 9.50 | 7.77 | 7.44 | 6.18 | 3.06 | 4.20 | 20.25 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.55 | 0.41 | 0.00 | 0.00 | 0.00 | 0.00 | 5.61 | |||||||||||||
YRS | 98 | 97 | 97 | 96 | 97 | 96 | 96 | 98 | 96 | 96 | 99 | 99 | 81 |