YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 0.13 | 1.52 | 1.19 | 1.98 | d | 0.88 | ----- | z | ||||
1987 | 1.50 | 2.70 | e | 0.82 | 0.44 | b | 0.54 | a | 0.30 | 2.00 | 0.00 | 0.10 | 0.10 | 0.85 | g | 2.03 | 2.70 | o | ||||||||
1988 | 1.51 | c | 0.91 | 1.10 | a | 1.82 | 0.50 | 1.05 | 0.14 | 0.02 | 0.54 | 0.17 | 2.42 | 1.70 | o | 2.42 | s | |||||||||
1989 | 2.88 | a | 1.11 | 1.10 | 0.76 | 0.83 | a | 0.60 | 0.25 | 1.67 | 0.35 | 1.00 | 0.90 | 0.83 | 2.88 | b | ||||||||||
1990 | 2.30 | a | 2.10 | 1.00 | 1.85 | 0.60 | 0.79 | 0.20 | 0.85 | 0.47 | 1.50 | 1.06 | 0.90 | 2.30 | a | |||||||||||
1991 | 1.40 | 1.32 | 1.20 | 1.10 | 1.68 | 1.13 | 0.45 | 0.40 | 0.00 | 1.15 | 1.15 | a | 2.12 | 2.12 | a | |||||||||||
1992 | 1.20 | 1.05 | a | 0.45 | 1.55 | 0.05 | 0.50 | 0.50 | 0.01 | 1.17 | 1.32 | 1.60 | 1.80 | a | 1.80 | b | ||||||||||
1993 | 1.60 | 0.70 | 1.50 | 1.30 | 0.90 | d | 0.64 | o | 0.47 | p | 0.12 | 0.00 | 0.25 | 1.68 | 1.38 | b | ----- | z | ||||||||
1994 | 2.05 | 2.35 | 0.90 | 1.00 | 0.52 | 0.70 | 0.06 | 0.03 | 0.61 | 2.48 | t | 1.06 | 0.90 | 2.48 | t | |||||||||||
1995 | 1.20 | 1.32 | 1.30 | l | 0.83 | h | 1.20 | q | 0.78 | o | 0.75 | p | 0.31 | 0.83 | s | 0.95 | o | 2.16 | g | 1.67 | a | ----- | z | |||
1996 | 1.78 | f | 3.41 | i | 0.97 | 1.95 | j | 1.12 | m | 0.80 | x | ----- | z | 0.13 | y | 1.14 | 1.06 | l | 4.70 | g | 2.01 | e | ----- | z | ||
1997 | 2.08 | h | 0.98 | j | 1.20 | f | 1.07 | i | 0.30 | u | 0.98 | h | 0.58 | g | 0.84 | d | 1.25 | d | 3.87 | v | 1.99 | h | 1.58 | ----- | z | |
1998 | 1.42 | 1.89 | c | 1.10 | 0.57 | b | 1.18 | l | 0.34 | h | 0.46 | b | 0.06 | 0.50 | d | 1.35 | k | 4.65 | k | 4.33 | c | ----- | z | |||
1999 | 2.98 | d | 1.65 | a | 1.19 | c | 0.26 | c | 1.57 | o | 0.58 | f | 0.41 | d | 0.50 | f | 0.01 | b | 0.70 | k | 4.52 | h | 2.34 | c | ----- | z |
2000 | 5.94 | d | 1.53 | g | 1.36 | h | 0.82 | j | 1.15 | g | 1.96 | b | 0.45 | c | 0.00 | 0.34 | d | 1.74 | i | 1.43 | r | 1.15 | h | ----- | z | |
2001 | 0.54 | g | 0.59 | e | 0.81 | d | 0.83 | f | 1.96 | g | 0.76 | d | 0.42 | c | 0.56 | 0.89 | c | 1.85 | q | 2.89 | o | 2.14 | b | ----- | z | |
2002 | 1.84 | e | 1.09 | f | 3.09 | e | 2.44 | i | 0.46 | i | 0.98 | b | 0.34 | 0.04 | b | 0.40 | m | 0.76 | p | 2.22 | c | 3.49 | i | ----- | z | |
2003 | 3.50 | f | 1.09 | j | 3.74 | g | 1.01 | f | ----- | z | 0.11 | c | 0.00 | 0.34 | 0.85 | j | 1.65 | d | 2.27 | n | 2.25 | h | ----- | z | ||
2004 | 2.84 | f | 2.69 | d | 0.70 | e | 1.33 | c | 2.08 | h | 0.84 | f | 0.18 | b | 1.97 | c | 1.83 | e | 1.20 | l | 1.01 | i | 3.89 | j | ----- | z |
2005 | 1.34 | h | 0.74 | k | 1.52 | d | 0.89 | i | 1.91 | l | 0.92 | i | 0.24 | b | 0.06 | d | 0.90 | c | 1.96 | n | 2.82 | l | 2.58 | e | ----- | z |
2006 | 3.58 | g | 1.36 | e | 0.85 | f | 0.67 | a | ----- | z | 1.59 | f | 0.41 | c | 0.11 | 0.43 | b | 1.21 | d | 5.70 | m | 4.25 | f | ----- | z | |
2007 | 2.84 | f | 1.15 | b | 0.79 | h | 0.76 | e | 0.83 | f | 0.52 | g | 0.33 | 1.22 | c | 0.08 | e | 4.04 | p | 4.62 | f | 4.98 | g | ----- | z | |
2008 | 3.80 | i | 1.04 | g | 1.63 | h | 1.45 | e | 0.63 | e | 0.77 | d | 0.11 | 0.56 | e | 0.22 | c | 2.09 | d | 3.98 | k | 2.16 | c | ----- | z | |
2009 | 2.56 | a | 3.30 | j | 2.02 | l | 0.85 | e | 2.31 | 0.49 | f | 0.07 | 0.26 | 0.81 | 0.88 | 3.50 | q | 1.45 | ----- | z | ||||||
2010 | 2.20 | o | 1.60 | 1.73 | f | 2.30 | m | 0.79 | k | 1.84 | i | 0.00 | 0.45 | 2.55 | f | 1.77 | f | 1.36 | d | 1.59 | ----- | z | ||||
2011 | 2.10 | d | 1.45 | 1.67 | a | 2.28 | g | 1.22 | g | 0.61 | f | 0.64 | 0.00 | b | 0.21 | b | 0.85 | e | 1.89 | h | 2.13 | g | ----- | z | ||
2012 | 4.79 | j | 0.99 | c | 2.20 | d | 0.85 | e | 0.53 | k | 1.36 | o | 0.21 | r | 0.11 | a | 0.02 | 2.44 | f | 4.27 | e | 1.86 | d | ----- | z | |
2013 | 1.42 | h | 0.92 | b | 0.83 | c | 1.12 | h | 1.08 | g | 0.91 | q | 0.00 | v | 1.54 | h | 4.41 | m | 0.60 | j | 1.91 | j | 0.59 | n | ----- | z |
2014 | 1.45 | h | 3.42 | g | 2.85 | i | 1.54 | k | 1.20 | i | 0.74 | i | 0.76 | e | 0.17 | v | 0.47 | l | 1.72 | b | 2.40 | h | 3.65 | g | ----- | z |
2015 | 1.70 | g | 1.45 | i | 1.12 | c | 0.96 | c | 0.52 | o | 0.09 | 0.09 | 0.63 | a | 0.59 | 0.70 | m | 1.67 | g | 3.00 | c | ----- | z | |||
2016 | 1.63 | b | 0.87 | 1.30 | b | 1.45 | f | 1.00 | k | 0.34 | v | 0.76 | f | 0.12 | c | 0.72 | e | 2.80 | d | 1.51 | b | 1.53 | ----- | z | ||
2017 | 1.17 | b | 2.31 | d | 2.30 | j | 1.63 | f | 0.72 | c | 0.54 | a | 0.00 | 0.01 | o | 1.11 | p | 4.06 | e | 1.01 | a | 0.98 | k | ----- | z | |
2018 | 1.29 | d | 1.16 | e | 1.08 | d | 1.20 | 0.10 | 1.09 | e | 0.00 | 0.00 | 0.12 | b | ----- | z | 2.19 | h | 3.83 | i | ----- | z | ||||
2019 | 2.12 | m | 1.62 | d | 0.56 | e | 0.95 | n | 1.09 | d | 0.64 | 0.11 | a | 0.31 | a | 1.28 | e | 2.32 | p | 0.23 | c | 1.71 | j | ----- | z | |
2020 | 2.49 | f | 1.15 | d | 1.47 | c | 1.19 | g | 0.70 | k | 0.49 | t | 0.56 | 0.01 | c | 0.50 | d | 2.01 | d | 2.00 | i | 1.72 | i | ----- | z | |
2021 | 2.60 | i | 1.70 | k | 0.50 | g | 0.39 | b | 0.46 | o | 0.48 | d | 0.02 | b | 0.01 | h | 2.02 | p | 1.95 | i | 2.62 | i | 2.35 | g | ----- | z |
2022 | 2.89 | m | 0.43 | f | 2.09 | l | 1.00 | n | 2.77 | n | 2.39 | j | 0.65 | f | 0.00 | 0.17 | o | 2.38 | i | 3.68 | e | 1.43 | n | ----- | z | |
2023 | 4.25 | f | 0.83 | f | 1.05 | j | 1.27 | l | 1.20 | j | 0.68 | l | 0.00 | d | 0.02 | i | 0.77 | n | 1.30 | o | 3.67 | g | ----- | z | ----- | z |
2024 | 2.12 | f | 0.96 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.03 | 1.46 | 1.20 | 1.01 | 0.81 | 0.73 | 0.32 | 0.36 | 0.59 | 1.41 | 1.74 | 1.86 | 2.27 | |||||||||||||
S.D. | 1.13 | 0.60 | 0.56 | 0.46 | 0.61 | 0.44 | 0.39 | 0.50 | 0.50 | 0.98 | 1.07 | 0.81 | 0.45 | |||||||||||||
SKEW | 2.45 | 0.73 | 1.79 | 0.27 | 1.22 | 1.01 | 2.88 | 1.87 | 0.73 | 1.07 | 1.13 | 1.27 | 0.46 | |||||||||||||
MAX | 5.94 | 2.70 | 3.09 | 1.85 | 2.31 | 1.96 | 2.00 | 1.97 | 1.83 | 4.06 | 4.27 | 4.33 | 2.88 | |||||||||||||
MIN | 1.17 | 0.59 | 0.45 | 0.26 | 0.05 | 0.09 | 0.00 | 0.00 | 0.00 | 0.10 | 0.23 | 0.83 | 1.80 | |||||||||||||
YRS | 18 | 24 | 23 | 19 | 13 | 17 | 29 | 31 | 28 | 17 | 15 | 21 | 4 |