YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | 0.38 | 0.11 | 0.30 | 0.35 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 1.25 | ----- | z | |||||||||||
1956 | 0.28 | 0.13 | 0.00 | 0.32 | 0.87 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | 0.00 | 0.02 | 0.87 | |||||||||||||
1957 | 0.62 | 0.51 | 0.45 | 0.72 | 0.04 | 0.13 | 0.00 | 0.00 | 0.00 | 0.08 | 0.73 | 0.43 | 0.73 | |||||||||||||
1958 | 0.51 | 0.77 | 0.87 | 0.47 | 0.78 | 0.00 | 0.00 | 0.00 | g | 0.34 | 0.00 | 0.16 | 0.07 | 0.87 | g | |||||||||||
1959 | 0.64 | 0.87 | 0.00 | 0.75 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.87 | |||||||||||||
1960 | 0.45 | 0.52 | 0.16 | 0.34 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.52 | 1.33 | 0.04 | 1.33 | |||||||||||||
1961 | 0.72 | 0.24 | 0.32 | 0.09 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.31 | 1.06 | 1.06 | |||||||||||||
1962 | 0.43 | 1.20 | 0.26 | 0.00 | 0.02 | 0.00 | 0.01 | 0.00 | 0.00 | 0.05 | 0.00 | 0.04 | 1.20 | |||||||||||||
1963 | 0.26 | 1.31 | 0.29 | 0.51 | 0.32 | 0.22 | 0.00 | 0.38 | 0.11 | 0.53 | 0.24 | 0.12 | 1.31 | |||||||||||||
1964 | 0.56 | 0.06 | 0.20 | 0.39 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 1.03 | 0.30 | 0.24 | 1.03 | |||||||||||||
1965 | 0.53 | 0.13 | 0.36 | 0.47 | 0.00 | 0.00 | 0.11 | 0.00 | 0.00 | 0.00 | 0.51 | 0.59 | 0.59 | |||||||||||||
1966 | 0.26 | 0.33 | 0.01 | 0.00 | 0.00 | a | 0.14 | 0.02 | 0.00 | 0.01 | 0.00 | 0.25 | 0.94 | 0.94 | a | |||||||||||
1967 | 0.42 | ----- | z | ----- | z | 0.27 | 0.00 | 0.63 | 0.00 | 0.00 | 0.00 | 0.02 | 1.34 | 0.13 | ----- | z | ||||||||||
1968 | 0.27 | 0.27 | 0.32 | 0.43 | 0.03 | 0.00 | 0.00 | 0.11 | 0.00 | 0.97 | 0.40 | 0.28 | 0.97 | |||||||||||||
1969 | 1.67 | 1.09 | 0.26 | 0.41 | 0.03 | 0.00 | 0.13 | 0.02 | 0.22 | 0.02 | 0.23 | 0.09 | 1.67 | |||||||||||||
1970 | 0.35 | 0.60 | 0.74 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 | 0.41 | 0.74 | |||||||||||||
1971 | 0.15 | 0.04 | 0.03 | 0.80 | 0.29 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.24 | 0.78 | 0.80 | |||||||||||||
1972 | 0.09 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.01 | 0.65 | 0.10 | 0.65 | |||||||||||||
1973 | 1.33 | 0.84 | 0.60 | 0.29 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.75 | 0.18 | 0.25 | 1.33 | |||||||||||||
1974 | 1.10 | 0.05 | 0.67 | 0.16 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.02 | 0.87 | 1.10 | |||||||||||||
1975 | 0.01 | 0.26 | 0.55 | 0.11 | 0.00 | 0.00 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.05 | f | 0.62 | 0.45 | ----- | z | ||
2002 | 0.36 | l | 0.10 | 0.27 | c | 0.05 | j | 0.00 | 0.11 | d | 0.00 | d | 0.00 | j | 0.00 | g | 0.00 | f | 0.32 | 0.44 | i | ----- | z | |||
2003 | 0.12 | a | 0.70 | f | 0.38 | b | 0.28 | 0.44 | 0.00 | c | 0.00 | f | 0.08 | 0.00 | f | 0.00 | 0.32 | b | 0.75 | ----- | z | |||||
2004 | 0.40 | a | 0.60 | k | 0.10 | d | 0.07 | f | 0.00 | b | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.15 | a | 1.07 | 1.07 | y | ||||||
2005 | 1.00 | a | 0.58 | a | 0.57 | 0.66 | 1.02 | 0.01 | 0.00 | 0.01 | 0.50 | 0.02 | 0.03 | 0.10 | a | 1.02 | c | |||||||||
2006 | 2.05 | 0.21 | 0.58 | 0.68 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | a | 0.11 | 0.10 | a | 2.05 | b | ||||||||||
2007 | 0.16 | 0.28 | 0.33 | 0.24 | 0.00 | 0.00 | 0.00 | 0.02 | 0.05 | 0.13 | 0.03 | 0.50 | 0.50 | |||||||||||||
2008 | 0.90 | 0.26 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.45 | 0.56 | c | 0.90 | c | |||||||||||
2009 | 0.23 | 0.46 | a | 0.10 | b | 0.03 | a | 0.08 | 0.09 | a | 0.00 | 0.00 | 0.26 | 0.46 | 0.15 | 0.47 | 0.47 | e | ||||||||
2010 | 0.86 | 0.62 | 0.27 | a | 0.52 | b | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | d | 0.45 | 1.47 | 1.47 | g | |||||||||
2011 | 0.47 | a | 0.06 | 0.95 | 0.03 | 0.08 | 0.20 | 0.00 | 0.00 | 0.00 | 0.01 | 0.49 | 0.00 | 0.95 | a | |||||||||||
2012 | 0.17 | 0.09 | 0.59 | 0.72 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.37 | d | 0.10 | 0.33 | 0.72 | d | |||||||||||
2013 | 0.11 | 0.19 | 0.66 | 0.00 | 0.41 | a | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.07 | 0.66 | a | |||||||||||
2014 | 0.01 | 0.57 | 0.36 | 0.08 | 0.00 | a | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.10 | 0.71 | 1.10 | a | |||||||||||
2015 | 0.18 | 0.16 | 0.38 | 0.30 | 0.50 | 0.00 | 0.53 | 0.00 | 0.00 | 0.17 | 0.17 | 0.71 | 0.71 | |||||||||||||
2016 | 0.50 | 0.48 | 0.18 | 0.23 | 0.21 | 0.00 | a | 0.00 | 0.00 | 0.00 | 0.75 | 1.00 | a | 0.34 | 1.00 | b | ||||||||||
2017 | 0.60 | 0.47 | 0.20 | 0.25 | a | 0.29 | 0.01 | b | 0.00 | a | 0.00 | c | 0.02 | d | 0.00 | c | 0.00 | f | 0.01 | j | ----- | z | ||||
2018 | 0.71 | h | 0.02 | e | 0.74 | h | 0.40 | i | 0.00 | e | 0.00 | h | 0.00 | e | 0.00 | m | 0.00 | e | 0.00 | c | 0.86 | e | 0.06 | g | ----- | z |
2019 | 0.46 | a | 0.27 | d | 0.70 | g | 0.00 | o | 0.47 | h | 0.48 | b | 0.00 | a | 0.00 | g | 0.00 | k | 0.00 | f | 0.26 | c | 0.36 | i | ----- | z |
2020 | 0.14 | e | 0.00 | o | 0.50 | m | 0.55 | g | 0.00 | d | 0.00 | 0.00 | b | 0.00 | c | 0.00 | p | 0.00 | f | 0.10 | e | 0.08 | c | ----- | z | |
2021 | 1.15 | c | 0.00 | 0.11 | j | 0.10 | c | 0.00 | d | 0.00 | d | 0.00 | d | 0.00 | h | 0.00 | b | 0.32 | g | 0.10 | 0.73 | ----- | z | |||
2022 | 0.00 | c | 0.00 | a | 0.47 | e | 0.03 | b | 0.00 | h | 0.00 | f | 0.00 | c | 0.00 | h | 0.72 | j | 0.00 | i | 0.00 | q | 0.08 | p | ----- | z |
2023 | 1.18 | r | 2.27 | f | 0.62 | f | 0.00 | f | 0.52 | g | 0.00 | a | 0.00 | 0.08 | 0.00 | 0.00 | 0.14 | 0.76 | ----- | z | ||||||
2024 | 0.45 | k | 0.83 | 0.48 | g | 0.05 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.52 | 0.39 | 0.34 | 0.30 | 0.18 | 0.05 | 0.02 | 0.02 | 0.05 | 0.19 | 0.36 | 0.45 | 0.99 | |||||||||||||
S.D. | 0.46 | 0.34 | 0.25 | 0.25 | 0.26 | 0.13 | 0.09 | 0.07 | 0.11 | 0.29 | 0.35 | 0.39 | 0.34 | |||||||||||||
SKEW | 1.50 | 0.99 | 0.52 | 0.50 | 1.67 | 3.27 | 5.40 | 4.07 | 2.71 | 1.68 | 1.39 | 0.77 | 1.28 | |||||||||||||
MAX | 2.05 | 1.31 | 0.95 | 0.80 | 1.02 | 0.63 | 0.53 | 0.38 | 0.50 | 1.03 | 1.34 | 1.47 | 2.05 | |||||||||||||
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 | 0.50 | |||||||||||||
YRS | 39 | 39 | 37 | 37 | 40 | 41 | 41 | 36 | 37 | 37 | 41 | 38 | 27 |