YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | y | 0.21 | 3.92 | 1.14 | 1.10 | 0.68 | 0.00 | 0.00 | 7.05 | e | |||||||
1951 | 0.20 | 0.00 | 0.60 | 0.40 | 0.00 | 0.00 | 0.48 | 1.89 | 0.03 | 0.74 | 0.00 | 0.26 | 4.60 | |||||||||||||
1952 | 0.21 | 0.03 | 0.23 | 0.38 | 0.99 | 1.34 | 1.49 | 0.78 | 1.17 | 0.00 | 0.32 | 0.42 | 7.36 | |||||||||||||
1953 | 0.00 | 1.03 | 0.93 | 0.76 | 0.09 | 1.07 | 0.74 | 0.68 | 0.03 | 0.27 | 0.01 | 0.66 | 6.27 | |||||||||||||
1954 | 0.10 | 0.01 | 0.05 | 0.01 | 1.20 | 0.14 | 0.46 | 1.81 | 0.85 | 0.98 | 0.00 | 0.09 | 5.70 | |||||||||||||
1955 | 0.56 | 0.00 | 0.27 | 0.00 | 0.21 | 0.31 | 2.15 | 2.48 | 0.03 | 0.70 | 0.00 | 0.01 | 6.72 | |||||||||||||
1956 | 0.41 | 0.91 | 0.00 | 0.00 | 0.04 | 0.56 | 0.96 | 0.41 | 0.00 | 0.04 | 0.00 | 0.03 | 3.36 | |||||||||||||
1957 | 0.42 | 0.52 | 0.39 | 1.06 | 0.46 | 0.07 | 2.62 | 4.76 | 0.56 | 1.83 | a | 0.33 | 0.26 | 13.28 | ||||||||||||
1958 | 0.19 | 0.31 | 1.33 | 0.64 | 0.16 | 0.54 | 1.71 | 1.21 | 2.67 | 1.52 | 0.06 | 0.00 | 10.34 | |||||||||||||
1959 | 0.00 | 0.05 | 0.01 | 0.25 | 0.00 | 0.01 | 0.49 | 1.99 | 0.20 | 0.67 | 0.06 | 0.63 | 4.36 | |||||||||||||
1960 | 0.38 | 0.03 | 0.00 | 0.00 | 0.21 | 0.93 | 2.84 | 0.33 | 1.72 | 1.35 | 0.03 | 1.42 | 9.24 | |||||||||||||
1961 | 0.17 | 0.00 | 0.32 | 0.00 | 0.00 | 0.65 | 0.71 | 2.13 | 2.44 | 0.03 | 1.92 | 0.26 | 8.63 | |||||||||||||
1962 | 0.60 | 0.13 | 0.19 | 0.33 | 0.00 | 0.95 | 3.42 | 0.10 | 2.76 | 1.16 | 1.37 | 0.82 | 11.83 | |||||||||||||
1963 | 0.00 | 0.22 | 0.14 | 0.03 | 0.00 | 0.01 | 0.85 | 2.09 | 1.20 | 1.06 | 0.18 | 0.40 | 6.18 | |||||||||||||
1964 | 0.00 | 0.10 | 0.20 | 0.55 | 0.32 | 0.00 | 2.53 | 0.60 | 2.20 | 0.00 | 0.00 | 0.29 | 6.79 | |||||||||||||
1965 | 0.22 | 0.00 | 0.07 | 0.13 | 0.38 | 0.68 | 1.58 | 0.74 | 2.57 | 0.12 | 0.00 | 1.67 | 8.16 | |||||||||||||
1966 | 0.88 | 0.03 | 0.07 | 0.05 | 0.14 | 1.83 | 1.10 | 1.88 | 1.92 | 0.79 | 0.01 | 0.00 | 8.70 | |||||||||||||
1967 | 0.00 | 0.20 | 0.00 | 0.00 | 0.01 | 2.89 | 1.97 | 4.57 | 2.10 | 0.59 | 0.74 | 1.53 | 14.60 | |||||||||||||
1968 | 0.28 | 0.66 | 0.47 | 0.06 | 0.00 | 0.30 | 1.29 | 1.18 | 1.08 | a | 0.14 | 0.39 | 0.00 | 5.85 | ||||||||||||
1969 | 0.39 | 0.07 | 0.09 | 0.18 | 1.79 | 0.25 | 2.18 | 1.82 | 3.13 | 1.64 | 0.07 | 0.71 | 12.32 | |||||||||||||
1970 | 0.01 | 0.67 | 0.19 | 0.04 | 0.02 | 0.04 | 0.97 | 1.09 | 1.07 | 0.94 | 0.00 | 0.20 | 5.24 | |||||||||||||
1971 | 0.00 | 0.00 | 0.09 | 0.03 | 0.12 | 0.10 | 0.75 | 2.22 | 1.42 | 1.63 | 0.38 | 1.20 | 7.94 | |||||||||||||
1972 | 0.02 | 0.00 | 0.00 | 0.00 | 0.72 | 1.09 | 0.74 | 4.68 | 0.96 | 5.64 | 0.65 | 0.14 | 14.64 | |||||||||||||
1973 | 0.46 | 1.02 | 0.32 | 0.04 | 1.01 | 0.39 | 2.69 | 1.46 | 0.24 | 0.03 | 0.01 | 0.00 | 7.67 | |||||||||||||
1974 | 0.06 | 0.05 | 0.44 | 0.00 | 0.22 | 0.00 | 2.62 | 2.01 | 3.01 | 4.84 | 0.15 | 0.83 | 14.23 | |||||||||||||
1975 | 0.66 | 0.25 | 0.42 | 0.00 | 0.10 | 0.01 | 1.06 | 0.55 | 5.10 | 0.37 | 0.24 | 0.52 | 9.28 | |||||||||||||
1976 | 0.08 | 0.72 | 0.06 | 0.22 | 0.56 | 1.13 | 2.27 | 0.62 | 3.77 | 1.20 | 0.51 | 0.26 | 11.40 | |||||||||||||
1977 | 0.52 | 0.05 | 0.78 | 1.01 | 0.00 | 0.24 | 1.18 | 0.70 | 0.38 | 0.06 | 0.00 | 0.20 | 5.12 | |||||||||||||
1978 | 0.53 | 0.05 | 0.10 | 0.00 | 0.16 | 0.35 | 0.30 | 1.40 | 0.57 | 1.15 | 3.58 | 0.83 | 9.02 | |||||||||||||
1979 | 0.85 | 0.62 | 0.02 | 0.15 | 2.13 | 2.29 | 0.52 | 2.31 | 3.05 | 0.02 | 0.01 | 0.21 | 12.18 | |||||||||||||
1980 | 0.23 | 0.15 | 0.00 | 0.11 | 0.76 | 2.65 | 0.80 | 1.21 | 1.58 | 0.08 | 0.15 | 0.19 | 7.91 | |||||||||||||
1981 | 0.45 | 0.38 | 0.36 | 0.43 | 0.61 | 1.26 | 2.48 | 1.00 | 0.83 | 0.63 | 0.40 | 0.00 | 8.83 | |||||||||||||
1982 | 0.16 | 0.12 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.28 | j | ||
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 | 0.28 | k | 0.00 | l |
1990 | 0.60 | h | 0.14 | i | 0.53 | i | 0.06 | i | ----- | 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 | 0.19 | 0.01 | 0.00 | 1.61 | 1.48 | 0.07 | 2.77 | 0.20 | 0.15 | 6.48 | c | |||||||||
1999 | 0.16 | 0.00 | 0.17 | 0.09 | 0.43 | 0.18 | 3.99 | 3.01 | 1.20 | 0.37 | a | 0.00 | a | 0.13 | 9.73 | |||||||||||
2000 | 0.00 | a | 0.00 | a | 1.50 | 0.38 | 0.00 | c | 3.06 | 0.99 | 1.01 | 0.09 | 2.51 | a | 1.35 | 0.00 | 10.89 | |||||||||
2001 | 0.69 | 0.20 | 0.19 | a | 0.07 | 1.76 | 0.40 | 2.36 | 0.99 | 2.52 | 0.08 | 0.20 | 0.25 | 9.71 | ||||||||||||
2002 | 0.04 | 0.20 | 0.00 | 0.02 | 0.32 | 0.04 | 1.31 | 1.08 | 2.48 | 0.73 | 0.25 | 1.15 | 7.62 | |||||||||||||
2003 | 0.00 | 1.05 | 0.06 | 0.04 | 0.10 | 0.11 | 0.77 | 0.83 | 0.66 | 0.50 | 0.77 | 0.01 | 4.90 | |||||||||||||
2004 | 0.21 | 0.02 | 0.52 | 1.51 | 0.17 | 0.91 | 0.80 | 1.26 | 0.48 | 0.85 | a | 1.21 | 0.34 | 8.28 | ||||||||||||
2005 | 0.22 | e | 1.14 | 0.62 | 0.20 | 0.01 | 0.00 | 0.49 | 1.89 | a | 0.57 | 1.25 | 0.00 | 0.00 | 6.39 | |||||||||||
2006 | 1.03 | 0.02 | 0.00 | 0.05 | 0.18 | 0.19 | 1.71 | 4.94 | 1.28 | 2.18 | 0.00 | 0.31 | 11.89 | |||||||||||||
2007 | 0.93 | 0.16 | 0.21 | 0.65 | 1.49 | 0.17 | 0.77 | 1.87 | 1.55 | 0.00 | 0.12 | a | 0.67 | c | 8.59 | |||||||||||
2008 | 0.09 | 0.11 | 0.00 | 0.00 | 0.77 | 0.12 | 5.03 | 2.09 | 2.55 | 0.37 | 0.23 | 0.02 | 11.38 | |||||||||||||
2009 | 0.00 | 0.00 | 0.20 | 0.12 | 1.10 | 0.76 | 2.04 | a | 0.82 | 1.22 | 0.27 | 0.52 | 0.22 | a | 7.27 | |||||||||||
2010 | 0.66 | c | 0.77 | 0.06 | 1.30 | 0.04 | 0.47 | 3.10 | 0.80 | 0.43 | 0.17 | 0.00 | 0.05 | 7.85 | ||||||||||||
2011 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.72 | 1.92 | 1.72 | 0.62 | 0.54 | 2.85 | 8.43 | |||||||||||||
2012 | 0.05 | 0.12 | a | 0.20 | 0.01 | 0.41 | 0.11 | 1.00 | 0.31 | i | 0.36 | 0.02 | 0.01 | 0.55 | 2.84 | a | ||||||||||
2013 | 0.07 | 0.01 | 0.06 | 0.00 | 0.14 | 0.07 | 3.55 | 1.03 | 6.20 | 0.13 | 0.45 | 0.50 | 12.21 | |||||||||||||
2014 | 0.00 | 0.00 | 0.09 | 0.27 | 0.09 | 0.02 | 1.98 | 1.85 | 3.98 | 0.55 | 0.27 | 0.12 | 9.22 | |||||||||||||
2015 | 1.13 | 0.57 | 0.37 | 0.05 | 0.98 | 1.05 | 1.17 | 0.77 | 0.91 | 1.38 | 0.11 | 0.26 | 8.75 | |||||||||||||
2016 | 0.17 | 0.01 | 0.00 | 0.95 | 0.69 | 0.33 | 1.66 | 1.66 | 1.32 | 0.12 | 2.02 | 0.87 | 9.80 | |||||||||||||
2017 | 1.92 | 0.67 | 0.21 | 0.03 | 0.06 | 0.54 | 1.02 | 1.44 | 2.30 | 0.13 | 0.05 | 0.05 | c | 8.42 | ||||||||||||
2018 | 0.02 | 0.87 | 0.15 | 0.00 | 0.00 | 0.93 | b | 1.29 | i | 0.61 | 3.09 | 1.47 | 0.00 | 0.80 | 7.94 | a | ||||||||||
2019 | 0.20 | 0.04 | 0.18 | 0.41 | 0.18 | 0.11 | 1.06 | 2.14 | 0.72 | 0.54 | 3.26 | 0.17 | 9.01 | |||||||||||||
2020 | 0.10 | 0.96 | 0.58 | 0.00 | 0.03 | 0.54 | 2.84 | a | 0.84 | 0.50 | 0.28 | 0.17 | 0.38 | 7.22 | ||||||||||||
2021 | 0.02 | 0.14 | 0.06 | 0.35 | 0.08 | 1.79 | 0.69 | c | 2.60 | 0.84 | 0.00 | c | 0.00 | 0.11 | 6.68 | |||||||||||
2022 | 0.09 | 0.18 | 0.09 | 0.00 | 0.00 | 2.35 | 0.86 | 2.83 | 1.04 | 2.05 | 0.00 | 0.72 | 10.21 | |||||||||||||
2023 | 0.70 | 0.06 | 0.11 | 0.00 | 0.34 | 0.04 | 0.11 | 0.73 | 1.95 | 0.31 | 0.29 | 1.00 | 5.64 | |||||||||||||
2024 | 0.63 | 1.21 | 0.01 | 0.19 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.85 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.31 | 0.29 | 0.24 | 0.24 | 0.38 | 0.63 | 1.61 | 1.62 | 1.55 | 0.87 | 0.41 | 0.44 | 8.66 | |||||||||||||
S.D. | 0.37 | 0.37 | 0.31 | 0.35 | 0.51 | 0.78 | 1.07 | 1.09 | 1.29 | 1.08 | 0.73 | 0.53 | 2.67 | |||||||||||||
SKEW | 1.86 | 1.15 | 2.26 | 1.92 | 1.72 | 1.63 | 1.05 | 1.52 | 1.28 | 2.51 | 2.86 | 2.18 | 0.38 | |||||||||||||
MAX | 1.92 | 1.21 | 1.50 | 1.51 | 2.13 | 3.06 | 5.03 | 4.94 | 6.20 | 5.64 | 3.58 | 2.85 | 14.64 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 3.36 | |||||||||||||
YRS | 58 | 58 | 57 | 57 | 57 | 58 | 57 | 57 | 58 | 58 | 58 | 58 | 54 |