YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.84 | 0.65 | y | ----- | z | 1.78 | w | 1.08 | 0.25 | ----- | z | 3.17 | i | |||
1926 | 0.26 | x | 0.26 | x | 0.20 | 0.80 | ----- | z | ----- | z | ----- | z | 2.29 | 1.02 | 0.18 | 0.36 | ----- | z | 4.85 | f | ||||||
1927 | ----- | z | 0.59 | u | 0.54 | 0.63 | w | ----- | z | 1.75 | 0.52 | 0.23 | 2.57 | 1.00 | 0.57 | ----- | z | 7.18 | e | |||||||
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.74 | ----- | z | 1.86 | ----- | z | 0.00 | 0.00 | 2.60 | h | ||||
1930 | 0.77 | y | 0.32 | y | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | 0.78 | 2.09 | u | ----- | z | 0.45 | ----- | z | 1.23 | i | |||
1931 | ----- | z | ----- | z | 0.65 | 0.69 | ----- | z | ----- | z | ----- | z | ----- | z | 0.27 | 0.33 | ----- | z | 1.29 | y | 1.94 | h | ||||
1932 | 0.87 | 0.90 | ----- | z | 1.20 | 0.24 | 0.54 | 2.41 | 1.11 | ----- | z | 1.15 | 0.00 | 0.36 | 8.78 | b | ||||||||||
1933 | 0.61 | ----- | z | ----- | z | ----- | z | 1.54 | 0.00 | 0.81 | 0.18 | 0.93 | 0.16 | 1.04 | 1.12 | 6.39 | c | |||||||||
1934 | 0.22 | 0.57 | 0.03 | ----- | z | 0.27 | 0.27 | 0.30 | 0.49 | 0.02 | 0.16 | 0.83 | 0.37 | 3.53 | a | |||||||||||
1935 | 0.12 | 0.59 | 0.43 | 1.98 | 0.65 | ----- | z | 0.00 | 0.84 | 0.50 | ----- | z | 0.10 | ----- | z | 5.21 | c | |||||||||
1936 | 0.31 | 0.34 | 0.50 | a | 0.37 | ----- | z | ----- | z | ----- | z | 0.67 | ----- | z | 0.85 | 0.05 | ----- | z | 3.09 | e | ||||||
1937 | 0.61 | u | 1.53 | ----- | z | 0.47 | 0.97 | ----- | z | 1.50 | 0.74 | 0.40 | 0.38 | ----- | z | ----- | z | 5.99 | e | |||||||
1938 | ----- | z | 0.77 | 1.39 | a | ----- | z | 1.23 | 0.79 | 0.25 | 1.05 | 1.12 | 2.04 | 0.44 | 0.63 | 9.71 | b | |||||||||
1939 | 0.45 | 0.41 | 0.63 | 0.42 | ----- | z | 0.00 | 0.09 | ----- | z | 2.31 | 0.83 | 0.00 | 0.24 | 5.38 | b | ||||||||||
1940 | 0.94 | a | 0.82 | 0.89 | 1.22 | 0.36 | 0.14 | 0.18 | 0.72 | 1.78 | 0.58 | v | 0.69 | 0.71 | 8.45 | a | ||||||||||
1941 | 0.56 | 0.21 | 0.62 | 1.71 | 0.75 | 0.97 | 0.38 | 1.49 | 2.28 | 2.53 | 0.38 | 0.67 | 12.55 | |||||||||||||
1942 | 0.22 | 0.26 | 0.60 | 1.51 | 0.41 | 0.15 | 0.32 | 0.28 | 0.72 | 1.47 | a | 0.28 | 0.16 | 6.38 | ||||||||||||
1943 | 0.13 | 0.32 | 0.45 | 0.19 | 0.64 | 2.30 | 0.46 | 1.61 | 0.00 | 0.69 | 0.50 | 0.48 | 7.77 | |||||||||||||
1944 | 1.39 | 1.10 | 1.23 | 2.19 | 0.39 | 1.45 | 0.17 | 0.19 | 0.08 | 0.84 | 0.44 | 0.00 | a | 9.47 | ||||||||||||
1945 | 0.41 | 0.41 | 0.98 | 0.51 | 0.50 | 1.54 | 0.30 | 0.60 | 0.18 | 1.12 | 0.11 | 0.72 | 7.38 | |||||||||||||
1946 | 0.02 | 0.12 | 0.16 | 1.26 | 0.72 | 0.38 | 0.05 | 0.24 | 0.10 | 2.03 | 1.30 | 0.84 | 7.22 | |||||||||||||
1947 | 0.93 | 0.18 | 0.03 | 0.95 | 0.90 | 2.55 | 0.14 | 2.11 | 0.02 | 1.37 | 0.72 | 1.20 | 11.10 | |||||||||||||
1948 | 0.10 | 0.56 | 0.62 | 0.51 | 0.11 | 0.57 | 0.86 | 1.31 | 0.32 | 0.45 | 0.30 | 1.35 | 7.06 | |||||||||||||
1949 | 1.00 | 0.03 | 0.96 | 0.40 | 1.49 | 1.77 | 0.71 | 0.12 | 0.60 | g | 2.71 | 0.19 | 2.32 | 11.70 | a | |||||||||||
1950 | 1.18 | 0.27 | 0.26 | 1.20 | 0.77 | 0.00 | 0.17 | 0.12 | 0.72 | 0.00 | 0.33 | 0.28 | 5.30 | |||||||||||||
1951 | 0.12 | 0.56 | 0.18 | 0.65 | 0.26 | 0.57 | 0.19 | 1.14 | 0.47 | 2.29 | 0.34 | 1.78 | 8.55 | |||||||||||||
1952 | 1.23 | 0.08 | 1.55 | 0.88 | 0.35 | 1.04 | 0.16 | 1.57 | 0.06 | 0.00 | 0.14 | 1.28 | 8.34 | |||||||||||||
1953 | 0.53 | 0.00 | 0.60 | 0.59 | 0.99 | 0.55 | 0.10 | 0.33 | 0.00 | 0.40 | 0.99 | 0.23 | 5.31 | |||||||||||||
1954 | 0.73 | 0.00 | 1.05 | 0.39 | 0.75 | 0.85 | 0.46 | 0.78 | 2.23 | 1.18 | 0.43 | 0.38 | 9.23 | |||||||||||||
1955 | 0.64 | 0.87 | 0.08 | 0.08 | 0.26 | 0.47 | 1.01 | 0.51 | 0.56 | 0.36 | 0.74 | 0.41 | 5.99 | |||||||||||||
1956 | 1.07 | 0.17 | 0.00 | 0.71 | 0.33 | 0.03 | 0.13 | 0.08 | 0.10 | 1.18 | 0.08 | 0.51 | 4.39 | |||||||||||||
1957 | 0.88 | 0.10 | 1.01 | 0.87 | 1.93 | 0.68 | 0.31 | 2.56 | 0.00 | 0.51 | 1.74 | 0.52 | 11.11 | |||||||||||||
1958 | 0.00 | 0.66 | 0.65 | 0.21 | 0.34 | 0.40 | 0.20 | 0.05 | 1.19 | 0.00 | 0.29 | 0.03 | 4.02 | |||||||||||||
1959 | 0.03 | 1.47 | 0.30 | 0.20 | 0.31 | 1.15 | 0.29 | 1.26 | 1.18 | 1.04 | 0.00 | 0.50 | 7.73 | |||||||||||||
1960 | 0.43 | 0.81 | 0.44 | 0.49 | 0.83 | 0.44 | 0.13 | 0.58 | 0.39 | 0.90 | 0.44 | 0.31 | 6.19 | |||||||||||||
1961 | 0.00 | 0.04 | 0.56 | 0.39 | 0.13 | 0.12 | 0.25 | 0.80 | 3.02 | 2.09 | 0.66 | 0.35 | 8.41 | |||||||||||||
1962 | 0.54 | 1.42 | 0.29 | 0.08 | 0.52 | 0.03 | 0.00 | 0.21 | 1.02 | 0.43 | 0.09 | 0.00 | 4.63 | |||||||||||||
1963 | 0.28 | 0.03 | 0.18 | 0.91 | 0.00 | 0.29 | 0.02 | 1.84 | c | 0.71 | 0.49 | 0.38 | 0.14 | 5.27 | ||||||||||||
1964 | 0.05 | 0.11 | 0.77 | 1.09 | 0.27 | 1.19 | 0.19 | 0.42 | 0.47 | 0.27 | 1.35 | 1.83 | 8.01 | |||||||||||||
1965 | 0.36 | 0.09 | 0.28 | 0.88 | 1.02 | 1.97 | 1.39 | 0.52 | 2.55 | 0.61 | 0.98 | 1.27 | 11.92 | |||||||||||||
1966 | 0.00 | 0.42 | 0.17 | 1.11 | 1.28 | 0.22 | 0.65 | 0.59 | 0.48 | 0.73 | 0.44 | 1.96 | 8.05 | |||||||||||||
1967 | 0.47 | 1.40 | 0.47 | 0.14 | 0.66 | 1.84 | 1.02 | 0.53 | 0.36 | 0.19 | 0.46 | 0.87 | 8.41 | |||||||||||||
1968 | 0.08 | 0.60 | 0.76 | 1.17 | 1.26 | 0.81 | 0.07 | 1.21 | 0.12 | 0.33 | 0.32 | 0.65 | 7.38 | |||||||||||||
1969 | 1.27 | 1.85 | 0.14 | 0.61 | 0.00 | 1.51 | 0.46 | 0.46 | 1.24 | 1.85 | 0.43 | 0.68 | 10.50 | |||||||||||||
1970 | 0.25 | 0.27 | 0.31 | 0.55 | 0.27 | 2.72 | 0.91 | 0.20 | 0.44 | 1.61 | 0.45 | 0.40 | 8.38 | |||||||||||||
1971 | 0.24 | 0.70 | 0.06 | 1.57 | 2.13 | 0.02 | 0.00 | 0.00 | 0.62 | 2.03 | 0.00 | 0.80 | 8.17 | |||||||||||||
1972 | 0.00 | 0.02 | 0.00 | 0.48 | 0.71 | 0.64 | 0.15 | 0.22 | 0.88 | 1.83 | 0.45 | 1.05 | 6.43 | |||||||||||||
1973 | 0.74 | 0.44 | 0.93 | 0.62 | 0.73 | 1.75 | 0.95 | 0.76 | 0.68 | 0.68 | 1.17 | 0.18 | 9.63 | |||||||||||||
1974 | 0.82 | 0.07 | 0.31 | 0.53 | 0.00 | 0.46 | 0.02 | 0.05 | 0.07 | 1.24 | 0.15 | 0.25 | 3.97 | |||||||||||||
1975 | 0.69 | 0.25 | 1.79 | 0.60 | 2.33 | 0.30 | 1.69 | 0.29 | 0.28 | 1.10 | 0.56 | 0.13 | 10.01 | |||||||||||||
1976 | 0.00 | 0.76 | 0.67 | 1.13 | 0.77 | 0.44 | 0.15 | 0.20 | 0.58 | 0.12 | 0.00 | 0.00 | 4.82 | |||||||||||||
1977 | 0.20 | 0.33 | 0.13 | 0.48 | 1.08 | 0.06 | 1.68 | 1.29 | 0.29 | 0.45 | 0.79 | 0.21 | 6.99 | |||||||||||||
1978 | 1.51 | 0.67 | 1.48 | 0.97 | 0.91 | 0.04 | 0.02 | 0.57 | a | 0.46 | 0.38 | 1.35 | 0.74 | 9.10 | ||||||||||||
1979 | 0.68 | 0.53 | 2.44 | 0.46 | 0.83 | 0.04 | 0.02 | 0.49 | 0.00 | 1.65 | 0.29 | 0.50 | 7.93 | |||||||||||||
1980 | 1.45 | 1.02 | 0.72 | 0.34 | 1.14 | 0.00 | 0.40 | 0.64 | 0.93 | c | 0.71 | 0.28 | 0.05 | 7.68 | ||||||||||||
1981 | 0.09 | 0.43 | 0.98 | 1.22 | c | 1.49 | 0.12 | 0.30 | 0.10 | 1.37 | 3.78 | 0.61 | 0.12 | 10.61 | ||||||||||||
1982 | 0.76 | a | 0.22 | 1.15 | e | 0.23 | 0.58 | 0.02 | 0.34 | 1.17 | g | 3.05 | 1.19 | 1.34 | 0.52 | a | 9.40 | a | ||||||||
1983 | ----- | z | 0.67 | 0.30 | 1.14 | a | 1.09 | 0.45 | 1.36 | 0.90 | 0.69 | 0.61 | 1.46 | 0.92 | 9.59 | a | ||||||||||
1984 | 0.29 | 0.24 | 0.24 | 0.79 | 0.10 | 1.39 | 1.26 | 0.25 | 0.91 | 0.90 | 0.51 | 1.68 | 8.56 | |||||||||||||
1985 | 0.72 | 0.16 | 0.47 | 0.33 | 0.92 | 0.46 | 2.38 | 0.10 | b | 1.44 | 1.17 | a | 0.67 | 0.69 | 9.51 | |||||||||||
1986 | 0.19 | 0.40 | 0.72 | 1.77 | 1.01 | 0.51 | 1.80 | 1.36 | 1.69 | e | 0.96 | 0.06 | 0.13 | 10.60 | ||||||||||||
1987 | 0.33 | 0.86 | 0.97 | 0.12 | 0.72 | a | 0.07 | 1.66 | 1.48 | a | 0.09 | 1.71 | 1.23 | 0.68 | 9.92 | |||||||||||
1988 | 0.79 | 0.01 | 0.51 | 1.20 | 0.82 | 0.39 | a | 0.06 | 0.27 | 1.09 | 0.07 | 0.23 | 0.66 | 6.10 | ||||||||||||
1989 | 0.19 | 0.56 | 0.14 | 0.06 | 0.20 | 0.37 | 0.45 | 0.47 | 0.70 | 0.26 | 0.32 | a | 0.08 | 3.80 | ||||||||||||
1990 | 0.37 | 1.10 | a | 0.44 | 0.58 | 0.21 | 1.08 | 0.11 | 0.19 | a | 1.18 | a | 1.23 | 0.63 | 0.88 | 8.00 | ||||||||||
1991 | 0.22 | 0.30 | 0.56 | 1.26 | a | 0.25 | a | 0.68 | 0.33 | 0.34 | 0.70 | 0.71 | 0.43 | 0.30 | 6.08 | |||||||||||
1992 | 0.22 | 0.53 | 0.78 | 0.00 | 1.57 | 0.21 | 1.67 | 0.77 | 0.49 | 0.89 | 0.48 | a | 0.90 | 8.51 | ||||||||||||
1993 | 1.34 | 0.74 | 1.97 | 0.73 | 1.06 | 0.35 | 0.38 | 1.07 | 0.48 | 2.03 | 0.49 | 0.00 | 10.64 | |||||||||||||
1994 | 0.00 | 0.64 | 0.24 | 0.78 | 0.48 | a | 0.19 | 0.03 | 0.46 | 1.08 | 3.45 | 1.27 | 0.25 | 8.87 | ||||||||||||
1995 | 0.43 | 0.74 | 0.54 | 1.01 | 2.71 | 1.19 | 0.39 | 0.40 | 1.42 | 0.07 | 0.17 | 0.02 | 9.09 | |||||||||||||
1996 | 0.89 | 0.60 | 0.43 | 0.37 | 0.98 | 0.96 | 0.71 | 0.43 | 1.25 | 0.98 | 0.79 | 0.36 | 8.75 | |||||||||||||
1997 | 1.32 | 0.64 | 0.03 | 1.65 | 0.74 | 0.65 | 0.35 | 1.95 | 3.05 | 0.77 | 0.66 | 0.59 | 12.40 | |||||||||||||
1998 | 0.27 | 1.24 | 0.73 | 0.75 | 0.25 | 2.21 | 1.25 | 1.02 | 0.32 | 1.47 | 0.75 | 0.39 | 10.65 | |||||||||||||
1999 | 0.42 | 0.49 | 0.06 | 2.39 | 1.22 | 0.13 | 0.32 | 1.10 | 0.69 | 0.10 | 0.13 | 1.70 | 8.75 | |||||||||||||
2000 | 0.58 | 0.67 | 0.49 | 0.94 | 0.43 | 0.80 | 0.20 | 0.38 | a | 1.30 | 1.50 | 0.37 | 0.14 | a | 7.80 | |||||||||||
2001 | 0.38 | 0.43 | 0.06 | 1.11 | 0.45 | 0.04 | 0.85 | 0.82 | 0.20 | 0.69 | 0.80 | 0.35 | 6.18 | |||||||||||||
2002 | 0.06 | 0.00 | 0.55 | a | 0.20 | 0.00 | 0.03 | 0.36 | a | 0.63 | 1.77 | 1.40 | 0.43 | 0.38 | a | 5.81 | ||||||||||
2003 | 0.23 | 0.63 | 0.69 | 0.36 | 1.05 | 0.50 | a | 0.02 | 0.32 | 0.21 | a | 0.25 | 0.60 | 0.79 | 5.65 | |||||||||||
2004 | 0.08 | 0.59 | 0.05 | 0.83 | 0.11 | 0.33 | 0.25 | 0.11 | 1.47 | 2.72 | 1.18 | 0.28 | 8.00 | |||||||||||||
2005 | 1.47 | 0.90 | 0.75 | 0.59 | 0.95 | 0.50 | 0.01 | 0.83 | 1.41 | 1.01 | 0.49 | 0.03 | 8.94 | |||||||||||||
2006 | 0.75 | 0.02 | 1.02 | 0.41 | 0.22 | 0.64 | 0.15 | 0.39 | 1.05 | 2.84 | 0.43 | 0.32 | 8.24 | |||||||||||||
2007 | 1.12 | 0.14 | j | 0.13 | 0.61 | 1.25 | 0.03 | 0.08 | 0.63 | 1.54 | 1.05 | 0.00 | 2.62 | 9.06 | a | |||||||||||
2008 | 0.73 | 0.49 | 0.51 | 0.28 | 0.45 | b | 1.18 | 0.04 | 0.15 | 1.31 | 0.66 | 0.51 | 1.01 | 7.32 | ||||||||||||
2009 | 1.64 | 0.13 | 0.33 | 1.27 | 1.02 | 1.57 | 0.19 | 0.35 | 0.68 | 0.64 | 0.56 | 1.26 | 9.64 | |||||||||||||
2010 | 0.39 | a | 0.23 | 0.57 | 1.45 | 0.75 | 1.33 | 0.59 | 0.60 | 0.11 | 1.09 | 1.06 | 2.83 | 11.00 | ||||||||||||
2011 | 0.01 | 0.38 | 0.42 | a | 0.79 | 2.17 | 0.77 | 1.65 | 0.07 | 0.56 | a | 1.39 | 0.43 | 0.18 | 8.82 | |||||||||||
2012 | 0.21 | 0.34 | 0.07 | 0.19 | 0.19 | a | 0.00 | a | 0.21 | 0.34 | 0.80 | 1.09 | 0.07 | 1.04 | 4.55 | |||||||||||
2013 | 0.61 | 0.32 | 0.52 | 0.67 | 1.21 | a | 0.00 | 0.41 | 0.66 | 1.74 | 1.42 | 0.35 | 1.00 | 8.91 | ||||||||||||
2014 | 0.22 | 0.07 | a | 0.54 | 0.70 | 0.75 | a | 0.03 | 0.31 | 2.75 | 1.96 | 0.09 | 0.78 | 0.16 | 8.36 | |||||||||||
2015 | 0.36 | 0.00 | 0.80 | 0.36 | a | 2.91 | 0.27 | 0.69 | 0.07 | 0.68 | 0.93 | 1.08 | 0.65 | d | 8.80 | |||||||||||
2016 | 0.16 | 0.15 | 1.16 | a | 0.76 | 2.44 | 0.04 | 0.38 | a | 0.49 | 4.90 | 0.69 | d | 0.51 | 0.56 | 12.24 | ||||||||||
2017 | 1.23 | 1.39 | 0.49 | 0.15 | 0.04 | 0.04 | 0.36 | d | 0.48 | 0.79 | S | 0.34 | a | 0.24 | 0.00 | 5.55 | ||||||||||
2018 | 0.26 | 0.21 | 0.37 | 0.38 | 0.39 | 0.02 | 0.25 | 0.75 | 0.22 | 1.62 | 0.39 | 0.22 | 5.08 | |||||||||||||
2019 | 1.12 | 1.80 | 0.81 | 0.99 | 2.39 | 0.30 | 0.00 | 0.49 | 0.32 | 0.10 | 0.66 | 1.22 | 10.20 | |||||||||||||
2020 | 0.12 | 0.13 | 1.06 | 0.52 | 0.15 | 0.94 | 0.21 | 0.00 | 0.00 | 0.00 | 1.03 | 0.32 | 4.48 | |||||||||||||
2021 | 0.53 | 0.37 | 0.57 | 0.68 | 0.25 | 0.12 | 1.55 | 0.97 | 1.68 | 1.90 | 0.10 | 1.11 | 9.83 | |||||||||||||
2022 | 0.00 | 0.27 | 0.84 | 0.64 | 0.89 | 0.38 | 0.43 | 0.35 | 1.89 | 1.66 | 0.70 | 1.37 | b | 9.42 | ||||||||||||
2023 | 2.57 | a | 0.25 | 1.07 | 0.47 | 0.07 | a | 0.57 | d | 0.27 | a | 0.53 | a | 0.35 | 0.28 | 0.43 | 0.11 | 6.97 | ||||||||
2024 | 0.26 | 1.37 | 0.86 | 0.04 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.49 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.54 | 0.51 | 0.60 | 0.75 | 0.79 | 0.65 | 0.52 | 0.68 | 0.94 | 1.02 | 0.53 | 0.65 | 8.02 | |||||||||||||
S.D. | 0.49 | 0.43 | 0.45 | 0.49 | 0.64 | 0.66 | 0.56 | 0.58 | 0.86 | 0.79 | 0.39 | 0.60 | 2.14 | |||||||||||||
SKEW | 1.28 | 1.12 | 1.32 | 1.00 | 1.27 | 1.21 | 1.56 | 1.49 | 1.65 | 1.08 | 0.87 | 1.47 | -0.06 | |||||||||||||
MAX | 2.57 | 1.85 | 2.44 | 2.39 | 2.91 | 2.72 | 2.41 | 2.75 | 4.90 | 3.78 | 1.74 | 2.83 | 12.55 | |||||||||||||
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 | 3.80 | |||||||||||||
YRS | 90 | 91 | 93 | 91 | 90 | 92 | 93 | 93 | 93 | 94 | 96 | 90 | 79 |