YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | r | 0.00 | 0.01 | 0.00 | 0.07 | ----- | z | ||||
1955 | 0.13 | 0.05 | 0.06 | 0.01 | 0.43 | 0.01 | 0.06 | 0.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.32 | 0.53 | 1.14 | 0.26 | 0.23 | 0.22 | ----- | z | ||||||
1962 | 0.43 | 1.08 | 0.27 | 0.00 | 1.00 | 1.14 | 0.33 | 0.00 | 0.44 | 0.04 | 0.10 | 0.00 | 1.14 | |||||||||||||
1963 | 0.17 | 0.68 | 0.10 | 0.48 | 0.20 | 0.56 | 0.00 | 0.07 | 0.24 | 0.12 | 0.41 | 0.02 | 0.68 | |||||||||||||
1964 | 0.20 | 0.24 | 0.12 | 0.57 | 0.49 | 0.28 | 0.28 | 0.04 | 0.41 | 0.09 | 0.17 | 0.17 | 0.57 | |||||||||||||
1965 | 0.42 | 0.10 | 0.12 | 0.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.45 | a | ----- | z | 0.20 | a | 0.03 | 0.05 | 0.00 | a | 0.10 | ----- | z | |||
1993 | 0.16 | 0.17 | 0.80 | 0.00 | 0.00 | 0.22 | 0.00 | 0.09 | 0.00 | 0.08 | a | 0.55 | 0.11 | 0.80 | a | |||||||||||
1994 | 0.04 | 0.10 | 0.28 | 0.13 | a | 0.69 | 0.00 | 0.38 | 0.00 | 0.04 | a | 0.14 | 0.30 | 0.24 | 0.69 | b | ||||||||||
1995 | 0.17 | 0.04 | 0.09 | 0.32 | 1.15 | a | 0.10 | 0.09 | 0.06 | 0.06 | 0.00 | 0.00 | 0.42 | 1.15 | a | |||||||||||
1996 | 0.08 | 0.20 | 1.10 | 0.01 | 0.19 | 0.24 | 0.24 | 0.02 | 0.00 | 0.30 | 0.38 | 0.18 | 1.10 | |||||||||||||
1997 | 0.48 | 0.50 | 0.00 | 0.11 | 0.01 | 0.66 | 0.67 | 0.00 | 0.34 | a | 0.00 | ----- | z | 0.02 | ----- | z | ||||||||||
1998 | 0.04 | a | 0.26 | 0.14 | 0.75 | 0.77 | 1.15 | 0.40 | 0.00 | 0.85 | 0.14 | a | 0.27 | b | 0.01 | 1.15 | d | |||||||||
1999 | 0.00 | b | 0.00 | 0.00 | 0.47 | 0.00 | 0.02 | a | 0.21 | 0.06 | 0.05 | 0.05 | 0.00 | 0.02 | 0.47 | c | ||||||||||
2000 | 0.07 | a | 0.37 | 0.00 | 0.03 | 0.16 | a | 0.03 | 0.00 | 0.50 | a | 0.09 | 0.26 | 0.41 | a | 0.14 | 0.50 | d | ||||||||
2001 | 0.14 | 0.27 | 0.18 | a | 0.13 | 0.00 | 0.00 | 0.00 | c | 0.00 | 0.00 | 0.00 | 0.25 | n | 0.40 | d | 0.40 | v | ||||||||
2002 | 0.12 | 0.19 | c | 0.00 | 0.12 | 0.00 | 0.00 | 0.15 | 0.00 | 0.02 | 0.00 | 0.03 | b | 0.20 | y | ----- | z | |||||||||
2003 | 0.06 | j | 0.11 | 0.30 | b | 0.25 | a | 0.10 | c | 0.10 | 0.39 | 0.05 | 0.05 | 0.30 | 0.30 | 0.25 | b | 0.39 | r | |||||||
2004 | 0.10 | 0.25 | 0.40 | 0.25 | 0.07 | 0.00 | b | 0.40 | 0.50 | 0.00 | 0.30 | 0.53 | a | 0.02 | b | 0.53 | e | |||||||||
2005 | 0.26 | 0.41 | 0.28 | 0.44 | 0.37 | 0.00 | 0.20 | 0.24 | 0.00 | 0.00 | 0.00 | a | 0.33 | c | 0.44 | d | ||||||||||
2006 | 0.49 | 0.37 | ----- | z | 0.13 | j | 0.00 | 0.09 | 0.02 | 0.00 | 0.00 | 0.00 | 0.39 | 0.00 | ----- | z | ||||||||||
2007 | 0.02 | c | 0.00 | 0.38 | 0.73 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.73 | c | |||||||||||
2008 | ----- | z | 0.25 | 0.00 | 0.00 | 1.10 | 0.00 | 0.10 | 0.02 | 0.00 | 0.00 | 0.38 | 0.11 | ----- | z | |||||||||||
2009 | 0.22 | 0.34 | 0.00 | 0.34 | 0.01 | 0.35 | 0.06 | 0.84 | 0.00 | 0.70 | 0.30 | 0.41 | 0.84 | |||||||||||||
2010 | 0.12 | 0.28 | 0.00 | 0.39 | 0.16 | 0.00 | 0.09 | 0.00 | 0.00 | 0.47 | 0.19 | 0.20 | 0.47 | |||||||||||||
2011 | 0.07 | f | 0.12 | 0.12 | a | 0.05 | 0.40 | c | 0.10 | 0.10 | 0.13 | 0.02 | 0.04 | 0.05 | 0.00 | 0.40 | j | |||||||||
2012 | 0.05 | b | 0.02 | a | 0.00 | e | 0.00 | 0.00 | 0.00 | 0.30 | 0.04 | b | 0.03 | a | 0.00 | c | 0.00 | 0.15 | e | 0.30 | s | |||||
2013 | 0.00 | 0.01 | 0.24 | a | 0.11 | 0.26 | 0.00 | 0.17 | 0.66 | 0.07 | a | 0.27 | 0.30 | b | 0.65 | 0.66 | d | |||||||||
2014 | 0.68 | 0.12 | 0.16 | 0.10 | 0.65 | 0.01 | 0.21 | 0.15 | 0.84 | 0.00 | 0.12 | 0.18 | 0.84 | |||||||||||||
2015 | 0.05 | 0.00 | 0.30 | a | 0.09 | 0.74 | a | 0.90 | 0.37 | 0.21 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
2016 | ----- | z | 0.05 | 0.18 | 0.26 | 0.62 | 0.20 | 0.00 | 0.00 | 0.00 | 0.35 | 0.00 | 0.10 | ----- | z | |||||||||||
2017 | 0.90 | 1.08 | 0.02 | 0.22 | 1.35 | 0.00 | 0.24 | 0.02 | 0.32 | p | ----- | z | ----- | z | ----- | z | ----- | z | ||||||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.55 | 0.00 | 0.26 | 0.25 | 0.21 | ----- | z | |||||
2019 | 0.22 | 0.51 | 0.26 | 0.08 | 0.22 | 0.24 | 0.10 | 0.16 | 0.26 | 0.00 | 0.29 | 0.16 | 0.51 | |||||||||||||
2020 | 0.02 | 0.02 | 0.83 | 0.25 | 0.08 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.12 | 0.11 | 0.83 | |||||||||||||
2021 | 0.05 | 0.11 | 0.07 | 0.04 | 0.13 | 0.02 | 0.11 | 0.00 | 0.00 | 0.21 | 0.00 | 0.70 | 0.70 | |||||||||||||
2022 | 0.00 | 0.20 | 0.06 | 0.07 | 0.04 | 0.00 | 0.06 | 0.47 | 0.02 | 0.04 | 0.29 | 0.41 | 0.47 | |||||||||||||
2023 | 0.43 | 0.28 | 0.62 | 0.00 | 0.30 | 0.85 | 0.18 | 0.57 | 0.33 | 0.70 | 0.13 | 0.00 | 0.85 | |||||||||||||
2024 | 0.50 | 0.52 | 0.17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.21 | 0.26 | 0.22 | 0.21 | 0.34 | 0.22 | 0.18 | 0.17 | 0.15 | 0.15 | 0.20 | 0.18 | 0.74 | |||||||||||||
S.D. | 0.22 | 0.26 | 0.26 | 0.21 | 0.38 | 0.34 | 0.16 | 0.23 | 0.28 | 0.19 | 0.17 | 0.18 | 0.24 | |||||||||||||
SKEW | 1.39 | 1.73 | 1.82 | 1.12 | 1.10 | 1.64 | 0.91 | 1.36 | 2.21 | 1.52 | 0.31 | 1.28 | 0.48 | |||||||||||||
MAX | 0.90 | 1.08 | 1.10 | 0.75 | 1.35 | 1.15 | 0.67 | 0.84 | 1.14 | 0.70 | 0.55 | 0.70 | 1.15 | |||||||||||||
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 | 0.44 | |||||||||||||
YRS | 32 | 36 | 35 | 34 | 34 | 35 | 35 | 37 | 35 | 35 | 33 | 34 | 21 |