YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | 0.80 | 0.42 | 2.03 | 2.70 | 7.59 | 3.61 | 3.31 | 1.06 | 5.25 | 6.01 | 0.07 | 0.26 | 33.11 | |||||||||||||
1942 | 0.00 | 0.43 | 0.07 | 3.47 | 0.27 | 0.97 | 1.35 | 2.96 | 1.83 | 2.34 | 0.00 | 0.61 | 14.30 | |||||||||||||
1943 | 0.00 | 0.03 | 0.00 | 0.00 | 2.01 | 2.23 | 1.79 | 1.69 | ----- | z | 0.08 | 0.03 | 0.86 | 8.72 | a | |||||||||||
1944 | 0.37 | 0.25 | 0.00 | 0.99 | 1.43 | 1.24 | 2.45 | 4.03 | 1.12 | 0.73 | 2.23 | 0.73 | 15.57 | |||||||||||||
1945 | 0.73 | 0.03 | 0.03 | 0.25 | 2.27 | 0.78 | 1.62 | 5.50 | 1.74 | 1.49 | 0.00 | 0.03 | 14.47 | |||||||||||||
1946 | 0.04 | 0.04 | 0.16 | 0.09 | 0.69 | 0.11 | 1.14 | 2.30 | 2.66 | 1.43 | 1.12 | 0.00 | 9.78 | |||||||||||||
1947 | ----- | z | 0.00 | ----- | z | 0.97 | ----- | z | ----- | z | 1.12 | 1.97 | 0.10 | 0.13 | 0.44 | 0.94 | 5.67 | d | ||||||||
1948 | 0.38 | 1.08 | 0.67 | 0.39 | 1.88 | 2.62 | 2.10 | 3.29 | 0.00 | 1.70 | 0.26 | 0.00 | 14.37 | |||||||||||||
1949 | 0.83 | 1.64 | 0.43 | 1.57 | 2.08 | 6.22 | 3.84 | 0.81 | 0.82 | 0.49 | 0.15 | 0.30 | 19.18 | |||||||||||||
1950 | 0.00 | 0.00 | 0.00 | 0.51 | 0.41 | 2.84 | 10.29 | 1.12 | 2.72 | 0.06 | 0.00 | 0.36 | 18.31 | |||||||||||||
1951 | 0.49 | 0.27 | 0.76 | 0.14 | 2.09 | 1.72 | 1.00 | 0.15 | 0.12 | 0.79 | 0.13 | 0.10 | 7.76 | |||||||||||||
1952 | 0.27 | 0.33 | 0.63 | 2.12 | 0.81 | 0.88 | 2.62 | 1.94 | 0.55 | 0.00 | 0.75 | 0.21 | 11.11 | |||||||||||||
1953 | 0.18 | 0.36 | 0.21 | 0.31 | 1.53 | 0.07 | 2.63 | 2.11 | 0.00 | 0.49 | 0.58 | 0.63 | 9.10 | |||||||||||||
1954 | 0.10 | 0.03 | 0.06 | 0.75 | 2.17 | 1.53 | 3.71 | 1.84 | 1.86 | 2.50 | ----- | z | ----- | z | 14.55 | b | ||||||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1962 | ----- | z | ----- | z | 0.44 | 0.94 | 0.15 | 1.92 | 3.68 | 0.40 | 0.61 | 0.27 | 0.30 | 0.34 | 9.05 | b | ||||||||||
1963 | 0.03 | 1.13 | 0.00 | 0.22 | 2.58 | 1.34 | 2.59 | 4.65 | 0.70 | 0.68 | 0.01 | 0.04 | 13.97 | |||||||||||||
1964 | 0.01 | 0.71 | 0.14 | 0.36 | 0.91 | 0.06 | 2.37 | 1.03 | 1.39 | 0.02 | 1.51 | 0.54 | 9.05 | |||||||||||||
1965 | 0.10 | 0.25 | 0.65 | 1.07 | 3.22 | 1.71 | 3.80 | 1.67 | 0.93 | 0.76 | 0.00 | 0.38 | 14.54 | |||||||||||||
1966 | 0.33 | 0.50 | 0.00 | 0.04 | 0.91 | 1.43 | 2.41 | 2.91 | 0.18 | 0.02 | 0.00 | 0.04 | 8.77 | |||||||||||||
1967 | 0.00 | 0.28 | 0.03 | 0.40 | 0.72 | 0.85 | 6.89 | 1.88 | 2.99 | 0.35 | 0.04 | 0.49 | 14.92 | |||||||||||||
1968 | 1.18 | 0.24 | 0.45 | 0.64 | 1.46 | 0.14 | 2.03 | 1.88 | 0.15 | 0.80 | 0.54 | 0.35 | 9.86 | |||||||||||||
1969 | 0.00 | 0.85 | 0.47 | 1.16 | 5.03 | 3.40 | 4.22 | 5.62 | 2.85 | 2.18 | 0.46 | 1.07 | 27.31 | |||||||||||||
1970 | 0.02 | 0.06 | 0.54 | 1.72 | 0.28 | 0.73 | 5.05 | 1.77 | 3.31 | 1.31 | 0.00 | 0.00 | 14.79 | |||||||||||||
1971 | 0.22 | 0.32 | 0.02 | 0.54 | 1.51 | 4.27 | 1.30 | 1.73 | 1.66 | 1.95 | 1.43 | 0.57 | 15.52 | |||||||||||||
1972 | 0.00 | 0.05 | 0.02 | 0.00 | 0.39 | 1.19 | 4.64 | 6.33 | 5.01 | 1.80 | 0.80 | 0.10 | 20.33 | |||||||||||||
1973 | 0.49 | 0.33 | 2.02 | 1.13 | 0.51 | 0.28 | 3.65 | 1.52 | 0.61 | 0.85 | 0.00 | 0.60 | 11.99 | |||||||||||||
1974 | 0.57 | 0.17 | 0.03 | 0.34 | 0.19 | 0.75 | 2.17 | 2.27 | 2.35 | 4.46 | 0.42 | 0.35 | 14.07 | |||||||||||||
1975 | 0.38 | 1.29 | 0.34 | 1.09 | 0.82 | 0.42 | 3.92 | 0.85 | 1.54 | 0.01 | 0.53 | 0.15 | 11.34 | |||||||||||||
1976 | 0.15 | 0.00 | 0.27 | 1.04 | 0.54 | 2.46 | 6.10 | 1.10 | 1.64 | 0.83 | 0.20 | 0.00 | 14.33 | |||||||||||||
1977 | 0.37 | 0.92 | 0.22 | 3.44 | 0.93 | 1.37 | 3.36 | 1.45 | 0.30 | 0.26 | 0.29 | 0.00 | 12.91 | |||||||||||||
1978 | 0.41 | 0.46 | 0.23 | 0.60 | 2.74 | 3.58 | 1.78 | 0.71 | 0.88 | 0.17 | 2.87 | 0.23 | 14.66 | |||||||||||||
1979 | 0.33 | 0.01 | 0.60 | 0.94 | 3.34 | 2.41 | 4.26 | 2.35 | 0.94 | 1.10 | 1.58 | 0.08 | 17.94 | |||||||||||||
1980 | 0.26 | 0.42 | 0.66 | 2.42 | 2.46 | 0.16 | 0.42 | 6.65 | 1.46 | 0.14 | 0.43 | 0.01 | 15.49 | |||||||||||||
1981 | 0.10 | 0.06 | 0.86 | 0.34 | 0.78 | 2.83 | 0.74 | 6.96 | 3.20 | 1.40 | 0.13 | 0.00 | 17.40 | |||||||||||||
1982 | 0.04 | 0.15 | 0.33 | 0.37 | 1.33 | 2.73 | 0.72 | e | ----- | z | 2.85 | ----- | z | ----- | z | ----- | z | 8.52 | d | |||||||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | w | 0.06 | 5.01 | 0.63 | 0.92 | 6.62 | h | ||||
2001 | 0.64 | 0.92 | 2.69 | 0.07 | 2.32 | 2.38 | 0.85 | 3.45 | 0.16 | 0.07 | 1.38 | 0.29 | 15.22 | |||||||||||||
2002 | 0.55 | 0.15 | 0.41 | 0.78 | 0.54 | 1.03 | 1.93 | a | 1.24 | a | 3.93 | c | 0.76 | 1.25 | 0.68 | 13.25 | ||||||||||
2003 | 0.00 | 0.61 | 1.51 | 0.34 | 1.60 | 3.17 | 0.51 | 2.94 | 0.49 | 0.83 | 0.80 | 0.22 | 13.02 | |||||||||||||
2004 | 0.01 | 0.71 | 0.74 | 3.39 | 0.00 | 1.77 | 2.80 | 3.51 | 2.77 | 1.94 | 2.58 | 0.39 | 20.61 | |||||||||||||
2005 | 1.64 | 1.17 | 1.44 | 1.84 | 1.81 | 0.14 | 1.99 | a | 4.59 | 3.25 | 0.49 | 0.06 | 0.00 | 18.42 | ||||||||||||
2006 | 0.07 | 0.02 | 0.26 | 0.47 | 1.63 | 0.52 | 7.55 | 4.66 | 1.53 | 0.88 | 0.01 | 0.90 | 18.50 | |||||||||||||
2007 | 0.68 | 0.11 | 1.94 | 0.61 | 1.06 | 2.62 | 1.55 | 1.55 | 0.31 | 0.29 | 0.40 | 0.65 | 11.77 | |||||||||||||
2008 | 0.01 | 0.24 | 0.17 | 0.74 | 1.24 | 1.36 | 2.78 | 4.46 | 1.10 | 2.21 | 0.15 | 0.07 | 14.53 | |||||||||||||
2009 | 0.00 | 0.47 | 0.57 | 0.62 | 1.26 | 0.82 | 2.43 | 1.62 | 0.39 | 1.63 | 0.23 | 0.60 | a | 10.64 | ||||||||||||
2010 | 0.56 | d | 1.08 | 1.04 | 0.80 | 0.58 | 1.82 | 2.07 | 2.61 | 0.77 | 0.49 | 0.11 | 0.35 | 12.28 | ||||||||||||
2011 | 0.00 | 0.23 | 0.74 | 0.06 | 0.00 | 0.10 | 0.00 | b | 1.06 | c | 3.17 | 0.74 | 0.19 | 1.49 | e | 7.78 | ||||||||||
2012 | 0.00 | 0.17 | a | 0.08 | 0.36 | 1.37 | 1.26 | 0.00 | h | 0.40 | 0.61 | 0.35 | 0.00 | 0.30 | 4.90 | a | ||||||||||
2013 | 0.33 | 0.58 | 0.00 | 0.00 | 0.53 | 2.74 | 2.82 | 0.78 | 3.23 | 0.04 | 0.17 | 0.08 | 11.30 | |||||||||||||
2014 | 0.00 | 0.00 | 0.08 | a | 0.11 | a | 1.84 | 4.13 | a | 1.89 | 0.21 | 2.24 | 0.22 | a | 0.31 | b | 0.24 | a | 11.27 | |||||||
2015 | 0.81 | a | 0.43 | 0.19 | a | 1.60 | 4.95 | b | 1.60 | 6.26 | 1.02 | 1.28 | 1.91 | 0.62 | a | 0.83 | 21.50 | |||||||||
2016 | 0.00 | 0.23 | b | 0.08 | 0.73 | 1.76 | b | 1.73 | 0.90 | 1.79 | d | 0.24 | 0.00 | 1.10 | 0.32 | 8.88 | ||||||||||
2017 | 0.63 | 0.21 | 1.53 | b | 1.95 | 1.38 | 1.10 | a | 1.87 | 4.12 | 1.96 | 2.25 | 0.02 | 0.00 | 17.02 | |||||||||||
2018 | 0.06 | 0.02 | 0.10 | a | 0.97 | 1.62 | 0.56 | 1.63 | 2.67 | 1.82 | 3.80 | 0.28 | b | 0.33 | 13.86 | |||||||||||
2019 | 0.12 | 0.06 | 0.68 | 0.71 | 1.07 | 1.06 | 2.20 | 1.12 | d | 1.04 | 1.22 | 0.77 | 0.48 | 10.53 | ||||||||||||
2020 | 0.39 | 0.06 | 0.72 | 0.04 | 0.42 | 0.39 | 2.22 | 0.33 | 0.47 | 0.44 | 0.22 | 0.04 | 5.74 | |||||||||||||
2021 | 0.08 | 0.00 | 0.80 | 0.10 | 2.31 | 0.90 | 3.33 | 1.28 | 0.40 | 1.20 | 0.00 | 0.00 | 10.40 | |||||||||||||
2022 | 0.12 | 0.03 | 0.50 | 0.03 | 0.18 | 0.49 | 3.48 | 3.21 | 0.01 | 1.72 | 0.05 | 0.00 | 9.82 | |||||||||||||
2023 | 0.17 | 0.03 | 0.44 | 0.37 | 1.80 | 1.71 | 2.01 | 0.11 | 0.96 | 0.25 | 0.10 | 0.78 | 8.73 | |||||||||||||
2024 | 0.18 | a | 0.62 | 0.12 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.92 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.28 | 0.37 | 0.52 | 0.86 | 1.53 | 1.62 | 2.77 | 2.34 | 1.49 | 1.14 | 0.50 | 0.36 | 14.06 | |||||||||||||
S.D. | 0.33 | 0.39 | 0.59 | 0.87 | 1.34 | 1.26 | 1.89 | 1.71 | 1.28 | 1.26 | 0.65 | 0.34 | 4.90 | |||||||||||||
SKEW | 1.69 | 1.30 | 1.74 | 1.57 | 2.18 | 1.16 | 1.62 | 1.02 | 0.95 | 1.94 | 1.90 | 0.99 | 1.42 | |||||||||||||
MAX | 1.64 | 1.64 | 2.69 | 3.47 | 7.59 | 6.22 | 10.29 | 6.96 | 5.25 | 6.01 | 2.87 | 1.49 | 33.11 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 5.74 | |||||||||||||
YRS | 57 | 58 | 58 | 58 | 57 | 57 | 57 | 57 | 58 | 58 | 57 | 57 | 52 |