YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1930 | 0.15 | 0.00 | 0.03 | 0.33 | 0.90 | 1.10 | 0.47 | 1.68 | ----- | z | 2.42 | t | 0.92 | 0.57 | 6.15 | b | ||||||||||
1931 | 1.29 | 0.56 | 0.17 | 4.81 | 1.00 | 0.22 | ----- | z | 1.45 | ----- | z | 0.53 | 1.45 | 2.04 | a | 13.52 | b | |||||||||
1932 | 0.46 | 2.00 | ----- | z | 0.13 | ----- | z | 1.33 | 1.60 | 1.72 | 8.55 | 1.58 | 0.00 | 1.25 | 18.62 | b | ||||||||||
1933 | 0.07 | 1.46 | 0.07 | 0.12 | 0.12 | 1.28 | 3.42 | 1.01 | 4.88 | 0.65 | 0.19 | 0.02 | 13.29 | |||||||||||||
1934 | 0.04 | 0.00 | 0.58 | 0.27 | 1.37 | 0.38 | 0.23 | 1.73 | 0.24 | 1.09 | 0.07 | 0.10 | 6.10 | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.83 | 1.34 | 0.00 | 2.18 | 7.35 | h | ||||
1943 | 0.04 | 0.00 | 0.02 | 0.09 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.15 | h | ||||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l | 0.90 | 0.35 | 0.28 | 0.91 | 0.00 | 0.13 | 2.57 | f | ||||||
1949 | 2.93 | 0.00 | 0.10 | 0.41 | 1.50 | 4.26 | 1.05 | 2.29 | 5.33 | 0.65 | 0.00 | 0.19 | 18.71 | |||||||||||||
1950 | 0.02 | 0.25 | 0.01 | 0.27 | 0.35 | 0.83 | 4.49 | 0.54 | 3.44 | 3.20 | 0.00 | 0.00 | 13.40 | |||||||||||||
1951 | 0.11 | 0.30 | 1.31 | 0.15 | 1.20 | 0.09 | 1.47 | 1.21 | 0.04 | 0.10 | 0.08 | 0.00 | 6.06 | |||||||||||||
1952 | 0.07 | 0.23 | 0.12 | 0.50 | 0.46 | 0.81 | 1.89 | 0.17 | 0.67 | 0.00 | 0.59 | 0.02 | 5.53 | |||||||||||||
1953 | 0.07 | 0.14 | 0.02 | 0.34 | 0.94 | 0.39 | 0.92 | 0.18 | 0.70 | 2.84 | 0.02 | 0.76 | 7.32 | |||||||||||||
1954 | 0.00 | 0.00 | 0.00 | 0.68 | 1.04 | 0.06 | 0.15 | 3.46 | 0.04 | 2.75 | 0.00 | 0.14 | 8.32 | |||||||||||||
1955 | 0.47 | 0.00 | 0.08 | 0.73 | 0.23 | 0.40 | 3.16 | 1.17 | 1.93 | 1.81 | 0.43 | 0.03 | 10.44 | |||||||||||||
1956 | 0.27 | 1.32 | 0.00 | 0.04 | 1.07 | 1.32 | 0.66 | 0.86 | 0.00 | 0.17 | 0.00 | 0.05 | 5.76 | |||||||||||||
1957 | 0.06 | 0.40 | 0.55 | 0.08 | 0.85 | 0.30 | 0.60 | 1.48 | 0.02 | c | 2.35 | f | 0.69 | 0.00 | 5.03 | a | ||||||||||
1958 | 1.63 | 1.02 | 1.01 | 0.95 | 0.21 | 0.61 | 1.29 | 3.04 | 5.45 | 2.72 | 0.56 | 0.02 | 18.51 | |||||||||||||
1959 | 0.02 | 0.17 | 0.31 | 0.10 | 3.45 | 0.26 | 1.35 | 1.26 | 0.29 | 0.65 | 0.03 | 0.36 | 8.25 | |||||||||||||
1960 | 0.35 | 0.38 | 0.18 | 0.00 | 0.19 | 1.00 | 5.06 | 2.66 | 0.28 | 3.16 | 0.00 | 1.58 | 14.84 | |||||||||||||
1961 | 0.87 | 0.12 | b | 0.38 | 0.00 | 0.52 | 1.10 | 0.40 | 0.06 | 0.29 | 1.68 | 0.95 | 0.11 | 6.48 | ||||||||||||
1962 | 0.69 | 0.02 | 0.13 | 0.63 | 0.88 | 1.02 | 4.13 | 0.06 | 2.01 | 0.99 | 0.38 | 0.11 | 11.05 | |||||||||||||
1963 | 0.10 | 0.21 | 0.87 | 0.43 | 1.14 | 0.38 | 0.66 | 2.52 | 0.24 | 0.03 | 0.00 | 0.24 | 6.82 | |||||||||||||
1964 | 0.00 | 0.03 | 0.23 | 0.00 | 0.66 | 0.35 | 0.13 | 1.24 | 3.15 | 0.09 | 0.01 | 0.00 | 5.89 | |||||||||||||
1965 | 0.00 | 0.22 | 0.04 | 0.02 | 1.76 | 1.06 | 0.75 | 1.45 | 2.34 | 0.00 | 0.64 | 0.49 | 8.77 | |||||||||||||
1966 | 0.35 | 0.00 | 0.07 | 1.83 | 0.78 | 0.71 | 0.00 | 8.02 | 1.08 | 0.23 | 0.00 | 0.00 | 13.07 | |||||||||||||
1967 | 0.00 | 0.01 | 0.17 | 0.09 | 0.13 | 1.91 | 1.78 | 0.16 | 1.19 | 0.01 | 0.11 | 0.27 | 5.83 | |||||||||||||
1968 | 1.50 | 0.80 | 1.20 | 0.33 | 1.35 | 0.05 | 4.71 | 1.75 | 0.00 | 0.18 | 1.57 | 0.02 | 13.46 | |||||||||||||
1969 | 0.10 | 0.36 | 0.33 | 0.40 | 0.17 | 0.56 | 0.66 | 1.23 | 2.36 | 3.99 | 0.49 | 0.49 | 11.14 | |||||||||||||
1970 | 0.01 | 0.84 | 1.06 | 0.00 | 0.23 | 1.84 | 0.00 | 0.81 | 2.77 | 0.78 | 0.00 | 0.03 | 8.37 | |||||||||||||
1971 | 0.05 | 0.02 | 0.01 | 0.24 | 0.13 | 0.00 | 3.70 | 5.34 | 1.90 | 0.24 | 0.34 | 0.91 | 12.88 | |||||||||||||
1972 | 0.14 | 0.00 | 0.00 | 0.00 | 1.54 | 2.04 | 2.19 | 3.98 | 3.32 | 1.36 | 0.56 | 0.07 | 15.20 | |||||||||||||
1973 | 0.97 | 1.77 | 0.27 | 0.00 | 1.31 | 0.57 | 3.01 | 0.52 | 1.66 | 0.58 | 0.01 | 0.00 | 10.67 | |||||||||||||
1974 | 0.54 | 0.08 | 0.20 | 0.46 | 0.15 | 0.27 | 0.79 | 4.96 | 9.23 | 3.43 | 0.18 | 0.76 | 21.05 | |||||||||||||
1975 | 0.31 | 1.00 | 0.17 | 0.04 | 0.13 | 0.22 | 3.46 | 0.87 | 1.56 | 0.04 | 0.00 | 0.18 | 7.98 | |||||||||||||
1976 | 0.18 | 0.01 | 0.05 | 0.66 | 0.71 | 0.04 | 2.31 | 0.73 | 4.74 | 0.76 | 0.91 | 0.00 | 11.10 | |||||||||||||
1977 | 0.42 | 0.08 | 1.04 | 2.18 | 1.47 | 0.54 | 0.87 | 1.58 | 0.99 | 1.45 | 0.14 | 0.00 | 10.76 | |||||||||||||
1978 | 0.22 | 0.34 | 0.16 | 0.21 | 1.40 | 2.33 | 0.36 | 1.01 | 8.44 | 1.57 | 3.42 | 0.32 | 19.78 | |||||||||||||
1979 | 0.20 | 0.46 | 0.03 | 0.11 | 2.74 | 0.90 | 4.49 | 2.53 | 0.62 | 0.00 | 0.07 | 0.58 | 12.73 | |||||||||||||
1980 | 0.45 | 0.13 | 0.00 | 0.80 | 1.00 | 0.10 | 0.09 | 2.08 | 7.61 | 0.09 | 1.07 | 0.20 | 13.62 | |||||||||||||
1981 | 0.77 | 0.32 | 0.62 | 1.23 | 1.91 | 0.35 | 3.47 | 2.80 | 2.48 | 0.66 | ----- | z | ----- | z | 14.61 | b | ||||||||||
1982 | ----- | z | ----- | z | 0.04 | 1.26 | 1.76 | 0.10 | 2.06 | 0.82 | 2.01 | 1.46 | 1.25 | 1.86 | 12.62 | b | ||||||||||
1983 | 0.47 | 0.31 | 0.27 | 1.06 | 0.31 | 0.53 | 0.58 | 2.55 | 2.05 | 1.90 | 0.54 | 0.34 | 10.91 | |||||||||||||
1984 | 0.35 | 0.03 | 0.12 | 0.09 | 2.50 | 3.12 | 1.98 | 6.41 | 1.47 | 2.70 | 0.91 | 0.46 | 20.14 | |||||||||||||
1985 | 0.35 | 0.34 | 0.23 | 0.35 | 1.06 | 1.11 | 0.57 | 0.69 | 2.99 | 2.30 | 0.11 | 0.02 | 10.12 | |||||||||||||
1986 | 0.31 | 0.45 | 0.11 | 0.00 | 1.75 | 8.98 | 1.79 | 1.51 | 2.55 | 2.76 | 2.75 | 2.52 | 25.48 | |||||||||||||
1987 | 0.29 | 1.02 | 0.36 | 0.28 | 4.68 | 4.91 | 0.35 | 4.38 | 0.56 | 0.78 | 0.41 | 1.46 | 19.48 | |||||||||||||
1988 | 0.02 | 0.49 | 0.02 | 0.72 | 1.81 | 1.79 | 5.31 | 3.81 | 4.99 | 0.01 | 0.00 | 0.44 | 19.41 | |||||||||||||
1989 | 0.03 | 0.93 | 0.52 | 0.16 | 0.42 | 2.11 | 0.83 | 1.22 | 2.51 | 0.06 | 0.00 | 0.21 | 9.00 | |||||||||||||
1990 | 0.41 | 0.06 | 0.32 | 1.16 | 0.29 | 0.00 | 2.17 | 2.51 | 5.31 | 1.31 | 0.70 | 0.04 | 14.28 | |||||||||||||
1991 | 1.43 | 0.41 | 0.00 | 0.11 | 1.51 | 0.32 | 5.41 | 2.01 | 8.76 | 0.08 | 0.64 | 3.60 | 24.28 | |||||||||||||
1992 | 1.02 | 1.40 | 0.11 | 0.48 | 5.33 | 5.03 | 0.48 | 3.36 | 0.19 | 0.15 | 0.37 | 0.64 | 18.56 | |||||||||||||
1993 | 1.00 | 0.39 | 0.07 | 0.51 | 0.58 | 1.43 | 3.36 | 2.13 | 0.14 | 1.18 | 0.29 | 0.09 | a | 11.17 | ||||||||||||
1994 | 0.38 | 0.00 | 0.11 | 0.49 | 2.56 | 1.37 | 0.14 | 2.96 | 0.61 | 0.72 | 0.82 | 0.17 | 10.33 | |||||||||||||
1995 | 0.32 | 0.40 | 0.13 | 0.06 | 1.22 | 1.00 | 0.01 | 0.79 | 3.45 | 0.16 | 0.01 | 0.24 | 7.79 | |||||||||||||
1996 | 0.36 | 0.00 | 0.01 | 0.71 | 0.19 | 1.87 | 0.89 | 4.94 | 2.20 | 0.20 | 0.44 | 0.00 | 11.81 | |||||||||||||
1997 | 0.47 | 1.91 | 0.08 | 1.79 | 1.85 | 1.51 | 0.64 | 1.83 | 3.32 | 3.03 | 0.42 | 2.84 | 19.69 | |||||||||||||
1998 | 0.06 | 0.09 | 1.57 | 0.00 | 0.02 | 0.10 | 0.51 | 1.76 | 0.14 | 2.13 | 0.10 | 0.36 | 6.84 | |||||||||||||
1999 | 0.41 | 0.00 | 0.66 | 0.27 | 3.03 | 1.91 | 2.02 | 0.26 | 0.20 | 0.25 | 0.00 | ----- | z | 9.01 | a | |||||||||||
2000 | 0.02 | 0.12 | 0.17 | ----- | z | 0.08 | ----- | z | ----- | z | 0.85 | e | 0.05 | 2.28 | 2.87 | 0.16 | 6.60 | c | ||||||||
2001 | 0.23 | 0.29 | 1.20 | 0.37 | 0.57 | 0.71 | 0.20 | 0.28 | 0.88 | 0.07 | 0.84 | 0.18 | 5.82 | |||||||||||||
2002 | 0.21 | 0.64 | 1.68 | 0.00 | 0.00 | 0.32 | 1.62 | 2.34 | 0.94 | 2.12 | 0.31 | 0.50 | 10.68 | |||||||||||||
2003 | 0.00 | 1.18 | 0.22 | 0.00 | 1.73 | 0.20 | 0.78 | 0.29 | 0.53 | 1.06 | 0.18 | 0.00 | 6.17 | |||||||||||||
2004 | 0.21 | 0.79 | 1.69 | 4.01 | 0.36 | 3.09 | 3.22 | 0.66 | 3.62 | 0.62 | 4.52 | 0.46 | 23.25 | |||||||||||||
2005 | 0.32 | 1.36 | 0.66 | 0.13 | 1.50 | 0.11 | 0.46 | 3.13 | 0.55 | 1.23 | 0.00 | 0.00 | 9.45 | |||||||||||||
2006 | 0.00 | 0.30 | 1.56 | 0.25 | 0.16 | 1.20 | 0.19 | 2.12 | 5.11 | 0.67 | 0.07 | 0.23 | 11.86 | |||||||||||||
2007 | 0.88 | 0.38 | 2.63 | 0.64 | 3.23 | 1.65 | 1.07 | 2.13 | 5.95 | 0.00 | 0.27 | 0.77 | 19.60 | |||||||||||||
2008 | 0.00 | 0.02 | 0.07 | 0.00 | 1.23 | 0.75 | 3.23 | 1.54 | 2.23 | 0.59 | 0.03 | 0.15 | 9.84 | |||||||||||||
2009 | 0.00 | 0.14 | 0.07 | 0.01 | 0.79 | 2.07 | 5.90 | 0.09 | 0.11 | 1.28 | 0.14 | 1.18 | 11.78 | |||||||||||||
2010 | 0.84 | 1.42 | 0.33 | 0.66 | 0.98 | 1.66 | 5.54 | 0.66 | 3.74 | 0.09 | 0.00 | 0.00 | 15.92 | |||||||||||||
2011 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.53 | 0.14 | 1.65 | 0.27 | 0.09 | 0.89 | 3.58 | |||||||||||||
2012 | 0.17 | 0.00 | 0.01 | 0.11 | 3.11 | 0.00 | 2.60 | 1.75 | 3.01 | 0.00 | 0.26 | 0.12 | 11.14 | |||||||||||||
2013 | 0.62 | 0.24 | 0.00 | 0.04 | 0.11 | 0.54 | 4.61 | 0.00 | 3.67 | 0.30 | 0.48 | 0.77 | 11.38 | |||||||||||||
2014 | 0.00 | 0.28 | 0.25 | 0.63 | 0.64 | 0.62 | 0.63 | 0.04 | 0.03 | b | 0.44 | 0.86 | 0.47 | 4.89 | ||||||||||||
2015 | 0.96 | 0.21 | 0.70 | 0.60 | 2.86 | 0.49 | 1.29 | 0.47 | 3.14 | 3.38 | 0.11 | 0.11 | 14.32 | |||||||||||||
2016 | 0.40 | 0.07 | 0.00 | 0.37 | 0.17 | 0.46 | 0.34 | 6.93 | 0.96 | 0.19 | 0.53 | a | 0.71 | 11.13 | ||||||||||||
2017 | 0.61 | 0.12 | 0.00 | 0.28 | 0.22 | 1.32 | 1.56 | 4.57 | 2.91 | 0.29 | 0.34 | 0.16 | 12.38 | |||||||||||||
2018 | 0.07 | 0.18 | 0.02 | 0.00 | 0.12 | 1.04 | 3.68 | 1.07 | 1.64 | 3.89 | 0.01 | 0.33 | a | 12.05 | ||||||||||||
2019 | 0.06 | 0.00 | 0.23 | 0.78 | 0.21 | 1.26 | 1.00 | 0.00 | 1.02 | a | 0.04 | 0.97 | 0.01 | 5.58 | ||||||||||||
2020 | 0.14 | 0.11 | 1.90 | 0.00 | 0.00 | 0.34 | 0.04 | 0.21 | 0.10 | 0.02 | 0.10 | 0.00 | 2.96 | |||||||||||||
2021 | 0.16 | 0.15 | 0.11 | 1.87 | 2.09 | 0.35 | c | 0.77 | 2.17 | 1.17 | 0.15 | 0.14 | 0.02 | 9.15 | ||||||||||||
2022 | 0.07 | 0.01 | 0.10 | 0.00 | 0.00 | a | 0.88 | 0.51 | 2.26 | 0.39 | 1.81 | 1.03 | 0.10 | 7.16 | ||||||||||||
2023 | 0.50 | 0.05 | 0.00 | 0.00 | 0.78 | 0.05 | 0.11 | 0.78 | 0.68 | 1.74 | 0.34 | 0.08 | 5.11 | |||||||||||||
2024 | 0.02 | 0.22 | 0.08 | 0.00 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.32 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.37 | 0.39 | 0.37 | 0.50 | 1.10 | 1.10 | 1.72 | 1.83 | 2.27 | 1.08 | 0.50 | 0.46 | 11.63 | |||||||||||||
S.D. | 0.48 | 0.49 | 0.53 | 0.79 | 1.08 | 1.37 | 1.62 | 1.65 | 2.28 | 1.09 | 0.78 | 0.70 | 5.21 | |||||||||||||
SKEW | 2.61 | 1.63 | 2.05 | 3.43 | 1.58 | 3.19 | 1.01 | 1.52 | 1.33 | 0.98 | 3.05 | 2.44 | 0.72 | |||||||||||||
MAX | 2.93 | 2.00 | 2.63 | 4.81 | 5.33 | 8.98 | 5.90 | 8.02 | 9.23 | 3.99 | 4.52 | 3.60 | 25.48 | |||||||||||||
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 | 2.96 | |||||||||||||
YRS | 81 | 81 | 81 | 80 | 79 | 79 | 79 | 81 | 80 | 80 | 81 | 80 | 72 |