YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | 0.40 | i | 0.49 | 0.54 | 0.50 | 0.91 | 1.75 | 1.91 | 0.95 | ----- | z | |||||||
1942 | 1.48 | 0.33 | g | 0.84 | h | ----- | z | 0.13 | g | 0.39 | 0.92 | 0.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 0.34 | k | 0.36 | 1.45 | 1.70 | 2.05 | a | 1.01 | 0.98 | ----- | z | |||||
1973 | 1.00 | 0.72 | e | 0.35 | 0.82 | 0.48 | 1.03 | 0.52 | c | ----- | z | 0.50 | j | ----- | 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 | 0.42 | 0.47 | 1.53 | 2.71 | 1.60 | 0.81 | ----- | z | ||||||
1979 | 0.63 | 0.87 | 1.10 | 0.48 | 1.04 | 0.72 | 1.50 | 0.49 | 0.80 | 2.23 | 2.69 | 1.05 | 2.69 | |||||||||||||
1980 | 1.20 | 0.73 | 0.76 | 1.20 | 0.67 | 0.97 | 0.69 | 0.78 | 2.30 | 2.07 | n | 1.87 | 1.50 | k | 2.30 | y | ||||||||||
1981 | 1.34 | 0.76 | 0.63 | c | 0.32 | c | 0.40 | d | 0.57 | b | 0.65 | b | 2.01 | l | 2.05 | g | 0.35 | l | 1.50 | 0.44 | p | ----- | z | |||
1982 | 0.27 | t | 0.50 | n | 0.62 | t | 0.88 | m | 0.82 | o | 0.07 | a | 0.72 | 1.37 | a | 0.85 | j | 2.02 | d | 0.93 | d | 0.52 | b | ----- | z | |
1983 | 1.69 | j | 0.73 | e | 0.34 | a | 0.34 | i | 0.84 | e | 0.25 | m | 0.66 | j | 1.34 | c | 0.43 | c | 1.01 | l | 0.37 | a | 0.30 | a | ----- | z |
1984 | 0.74 | n | 0.83 | v | 1.50 | p | 0.20 | c | 0.48 | a | 0.29 | a | 0.60 | f | 1.60 | b | 0.80 | ----- | z | ----- | z | ----- | z | ----- | z | |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.30 | o | 0.76 | a | 1.00 | k | 0.60 | a | 1.44 | ----- | z | |
1986 | 2.90 | c | 1.98 | ----- | z | 0.92 | f | 0.70 | k | 1.25 | c | 0.12 | x | 0.34 | ----- | z | ----- | z | ----- | z | 1.94 | ----- | z | |||
1987 | 1.08 | h | ----- | 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 | 3.37 | c | 1.84 | 0.74 | ----- | z | ||
1995 | 0.60 | 1.00 | 1.06 | a | 0.57 | g | 1.42 | d | 0.52 | b | 0.45 | 0.76 | b | 1.02 | 0.93 | b | 1.65 | 1.17 | a | 1.65 | s | |||||
1996 | 1.00 | 2.45 | d | 0.87 | 0.90 | a | 0.44 | 1.29 | 0.29 | s | 0.72 | a | 3.65 | 2.88 | a | 0.81 | 0.85 | ----- | z | |||||||
1997 | 0.43 | 0.89 | 1.00 | n | 0.83 | d | 1.00 | 0.42 | 1.00 | 0.72 | 1.51 | 1.84 | e | 0.99 | h | 2.05 | ----- | z | ||||||||
1998 | 0.43 | 0.34 | 0.88 | 0.75 | h | 0.36 | 0.60 | 0.72 | 2.17 | l | 0.71 | 1.89 | 1.41 | 1.59 | c | 2.17 | w | |||||||||
1999 | 1.08 | 1.54 | 0.47 | 1.16 | d | 1.83 | f | 0.90 | 0.63 | f | 1.73 | b | 2.35 | 1.57 | a | 3.18 | 2.05 | 3.18 | s | |||||||
2000 | 1.79 | 0.53 | b | 0.94 | 1.03 | l | 0.36 | 0.61 | 0.98 | 0.53 | 1.53 | b | 1.02 | 4.47 | j | 2.06 | d | ----- | z | |||||||
2001 | 3.10 | a | 2.12 | 0.58 | 0.39 | a | 0.58 | 0.42 | a | 0.35 | b | 1.54 | 2.00 | 1.98 | d | 1.33 | 1.24 | 3.10 | i | |||||||
2002 | 1.28 | b | 1.33 | 0.50 | a | 0.08 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.87 | 0.80 | e | 0.94 | a | 2.26 | 1.19 | f | 1.28 | j | 2.15 | ----- | z | |||
2004 | 1.05 | 1.22 | 1.15 | c | 0.78 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2005 | ----- | z | ----- | z | ----- | z | 1.20 | o | 1.20 | b | 0.42 | 1.18 | c | 0.62 | 1.60 | a | 1.72 | a | 2.66 | c | 1.15 | ----- | z | |||
2006 | 0.47 | 0.87 | a | 0.62 | 0.49 | 0.73 | 0.93 | 0.49 | 0.60 | 1.57 | 1.66 | 0.88 | 1.95 | 1.95 | a | |||||||||||
2007 | 1.39 | 0.92 | 1.30 | 0.74 | a | 0.91 | 0.31 | 1.46 | 0.29 | 0.77 | 1.57 | 1.16 | 1.39 | 1.57 | a | |||||||||||
2008 | 1.23 | 1.09 | a | 0.96 | 1.32 | 0.80 | 0.27 | 0.98 | 0.70 | 0.98 | 1.58 | 1.97 | 1.43 | 1.97 | a | |||||||||||
2009 | 1.37 | 0.72 | 0.97 | 0.84 | 0.28 | 0.60 | 0.21 | 1.38 | 1.20 | 2.44 | 2.41 | 1.54 | 2.44 | |||||||||||||
2010 | 1.35 | 0.37 | 1.59 | 0.70 | 0.18 | 1.48 | 0.34 | 0.53 | 1.51 | 2.55 | 1.96 | 2.75 | 2.75 | |||||||||||||
2011 | 1.05 | 1.22 | 0.37 | 0.48 | 0.41 | 0.57 | 0.58 | 1.51 | 1.50 | 1.10 | 1.09 | 2.72 | 2.72 | |||||||||||||
2012 | 1.05 | 1.15 | 0.80 | 0.45 | 0.72 | 0.95 | 1.10 | 1.23 | 1.59 | 1.64 | 0.88 | 0.77 | 1.64 | |||||||||||||
2013 | 0.92 | 1.39 | 0.53 | 0.87 | 0.81 | 0.56 | 0.76 | 0.57 | 1.64 | 2.06 | 1.90 | 1.53 | 2.06 | |||||||||||||
2014 | 2.57 | 1.10 | 0.95 | 1.02 | 0.23 | 0.98 | 1.29 | 1.00 | 1.09 | 1.42 | 0.89 | 1.05 | 2.57 | |||||||||||||
2015 | 2.00 | 0.40 | a | 1.04 | 1.42 | 0.21 | 0.41 | 1.11 | 1.25 | 0.79 | 1.39 | 1.48 | 0.58 | 2.00 | a | |||||||||||
2016 | 1.76 | 0.47 | 0.39 | 0.71 | 1.29 | 0.39 | 0.46 | 0.28 | 2.07 | 1.30 | 1.31 | 0.87 | 2.07 | |||||||||||||
2017 | 1.38 | 2.10 | 0.97 | 0.35 | 0.61 | 0.30 | 0.65 | 0.70 | 1.12 | 2.00 | 0.73 | a | 1.50 | 2.10 | a | |||||||||||
2018 | 0.51 | 0.66 | 0.68 | 0.53 | 0.62 | a | 0.91 | 0.60 | 1.44 | 0.81 | 3.10 | 0.82 | 0.96 | 3.10 | a | |||||||||||
2019 | 1.28 | 0.39 | 1.35 | 0.85 | 0.32 | 1.05 | 0.66 | 1.28 | 1.70 | 1.41 | 1.68 | 0.93 | 1.70 | |||||||||||||
2020 | 1.41 | 1.39 | 0.63 | 0.65 | 0.35 | 0.64 | 0.91 | 0.88 | 1.24 | 2.35 | 1.11 | a | 4.70 | 4.70 | a | |||||||||||
2021 | 2.21 | a | 0.93 | 0.74 | a | 0.81 | a | 0.60 | 0.98 | 0.47 | e | 1.38 | 1.58 | 2.10 | 1.18 | 0.69 | a | 2.21 | i | |||||||
2022 | 3.50 | 1.88 | 0.92 | 0.58 | 0.34 | 0.65 | 0.93 | 1.30 | 2.05 | 2.47 | 1.27 | 0.61 | 3.50 | |||||||||||||
2023 | 1.17 | 0.87 | 1.19 | 0.95 | 0.68 | 1.09 | 0.40 | 1.88 | a | 1.60 | 2.08 | 2.89 | 1.78 | 2.89 | a | |||||||||||
2024 | 1.50 | 0.74 | 1.48 | 0.30 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.40 | 1.06 | 0.85 | 0.70 | 0.62 | 0.69 | 0.74 | 0.96 | 1.45 | 1.94 | 1.50 | 1.41 | 2.47 | |||||||||||||
S.D. | 0.74 | 0.54 | 0.33 | 0.33 | 0.32 | 0.33 | 0.33 | 0.45 | 0.63 | 0.59 | 0.68 | 0.83 | 0.77 | |||||||||||||
SKEW | 1.17 | 0.91 | 0.31 | 0.25 | 0.75 | 0.40 | 0.61 | 0.25 | 1.13 | 0.48 | 0.71 | 1.89 | 1.36 | |||||||||||||
MAX | 3.50 | 2.45 | 1.59 | 1.42 | 1.42 | 1.48 | 1.50 | 1.88 | 3.65 | 3.37 | 3.18 | 4.70 | 4.70 | |||||||||||||
MIN | 0.43 | 0.34 | 0.34 | 0.08 | 0.18 | 0.07 | 0.21 | 0.28 | 0.43 | 0.93 | 0.37 | 0.30 | 1.57 | |||||||||||||
YRS | 34 | 34 | 32 | 29 | 31 | 36 | 34 | 36 | 35 | 32 | 34 | 36 | 18 |