YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1945 | ----- | z | 0.22 | 1.60 | 1.93 | 0.82 | 2.05 | 5.53 | 2.14 | 4.93 | 0.88 | 0.58 | 0.75 | 21.43 | a | |||||||||||
1946 | 0.26 | 0.97 | a | 1.16 | 0.54 | 2.36 | 4.55 | 1.11 | 2.90 | 1.79 | 2.26 | 1.04 | 1.00 | b | 19.94 | |||||||||||
1947 | 0.30 | 0.37 | 0.50 | 1.72 | 3.03 | 7.28 | 1.68 | 4.34 | 3.35 | 1.20 | 1.15 | f | 0.76 | d | 24.53 | a | ||||||||||
1948 | 0.24 | c | 0.88 | a | 1.66 | 1.29 | 1.74 | ----- | z | ----- | z | 0.74 | a | 0.41 | a | 0.32 | a | 0.69 | 0.82 | a | 8.79 | b | ||||
1949 | 1.04 | a | 0.51 | 1.03 | 0.42 | 3.36 | a | 2.83 | 6.30 | 4.79 | 0.73 | 3.58 | 0.97 | 1.39 | 26.95 | |||||||||||
1950 | 1.79 | 0.31 | 1.36 | 2.10 | 5.27 | 4.15 | 2.67 | a | 0.71 | a | 2.94 | 1.21 | 1.31 | 0.51 | 24.33 | |||||||||||
1951 | 0.23 | a | 0.48 | a | 1.77 | 1.40 | a | 1.14 | 3.74 | 1.77 | 6.37 | 3.24 | 0.78 | 1.09 | 1.91 | a | 23.92 | |||||||||
1952 | 0.38 | 0.13 | 0.72 | 0.55 | 0.58 | 2.51 | 9.20 | 1.91 | 1.72 | 0.21 | 1.03 | 0.37 | 19.31 | |||||||||||||
1953 | 1.16 | 0.19 | 1.08 | a | 2.34 | 2.93 | 5.04 | 1.78 | 1.94 | 4.78 | 1.19 | 0.85 | 0.65 | 23.93 | ||||||||||||
1954 | 1.10 | 0.58 | 0.76 | 1.13 | a | 1.83 | 2.65 | 2.82 | 4.22 | 2.29 | 0.35 | 0.81 | 0.15 | 18.69 | ||||||||||||
1955 | 0.45 | 1.17 | a | 0.46 | 2.02 | 2.48 | 4.03 | 4.45 | a | 2.32 | 3.13 | 1.06 | 1.39 | 0.40 | 23.36 | |||||||||||
1956 | 1.01 | 0.39 | 1.04 | 1.88 | 2.87 | a | 1.42 | a | 3.39 | 4.58 | a | 0.51 | a | 1.65 | 1.51 | 0.62 | 20.87 | |||||||||
1957 | 0.52 | 0.26 | 0.59 | 3.09 | 1.26 | 6.31 | 3.73 | 2.63 | 3.95 | 2.10 | 1.01 | 0.22 | 25.67 | |||||||||||||
1958 | 0.34 | 0.20 | 0.27 | 0.36 | 1.46 | 2.67 | 6.77 | 1.01 | 1.13 | 1.94 | 2.41 | 0.69 | 19.25 | |||||||||||||
1959 | 0.32 | 0.39 | 0.08 | 0.10 | 2.89 | 1.36 | 3.56 | 4.20 | 1.79 | 2.66 | 0.77 | 0.86 | 18.98 | |||||||||||||
1960 | 0.38 | 0.09 | 0.26 | 2.03 | 1.37 | 4.76 | 5.39 | 5.18 | 1.56 | 1.08 | 0.44 | 0.94 | 23.48 | |||||||||||||
1961 | 0.29 | a | 0.35 | 0.22 | 1.77 | 0.86 | 1.28 | 3.19 | 3.08 | 6.34 | 0.66 | 0.56 | 0.87 | 19.47 | ||||||||||||
1962 | 0.74 | 1.68 | 0.57 | 0.83 | 6.88 | 3.47 | 4.78 | 3.89 | 2.92 | 1.14 | 0.66 | 0.74 | 28.30 | |||||||||||||
1963 | 0.06 | 0.38 | 0.31 | 3.18 | 3.76 | 4.05 | 4.45 | 2.59 | 1.55 | 0.21 | 0.38 | 0.74 | 21.66 | |||||||||||||
1964 | 0.30 | 0.25 | 0.88 | 3.72 | 3.09 | 6.80 | 2.38 | 2.48 | 6.33 | 0.89 | 0.76 | 0.67 | 28.55 | |||||||||||||
1965 | 0.27 | 0.18 | 0.75 | 1.74 | 3.34 | 5.49 | 3.99 | 2.81 | 5.27 | 2.24 | 1.59 | 0.96 | 28.63 | |||||||||||||
1966 | 0.45 | 0.73 | 1.97 | 2.29 | 1.23 | 2.27 | 3.63 | 5.46 | 1.39 | 0.63 | b | 0.37 | 0.87 | 21.29 | ||||||||||||
1967 | 0.85 | 0.26 | 0.77 | 3.60 | 1.25 | a | 4.89 | 2.29 | 0.97 | 1.05 | 1.44 | 0.70 | ----- | z | 18.07 | a | ||||||||||
1968 | 0.60 | 0.18 | 1.48 | 1.79 | 2.20 | 5.70 | 6.69 | 3.06 | 3.09 | 2.69 | 0.30 | 0.54 | 28.32 | |||||||||||||
1969 | 2.11 | 0.17 | 0.06 | 1.43 | 2.53 | 3.36 | 2.71 | 2.19 | 2.74 | 3.10 | 0.46 | 0.90 | 21.76 | |||||||||||||
1970 | 0.62 | 0.15 | 0.89 | 1.34 | 2.49 | 4.23 | 1.21 | 2.42 | 2.51 | 3.08 | 0.81 | 0.63 | 20.38 | |||||||||||||
1971 | 0.61 | 0.05 | 0.76 | 0.95 | 1.82 | 4.63 | 2.48 | 1.56 | 4.58 | 4.94 | 0.68 | 0.27 | 23.33 | |||||||||||||
1972 | 0.57 | 0.50 | 0.48 | 1.22 | 3.08 | 1.34 | 7.57 | 2.58 | 2.33 | 1.59 | ----- | z | ----- | z | 21.26 | b | ||||||||||
1973 | 0.00 | 0.25 | 0.93 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.03 | j | ----- | z | 1.01 | 2.19 | h | ||||
1974 | 0.88 | 0.35 | 1.85 | a | 3.27 | 3.61 | 1.77 | 2.33 | 7.78 | 0.33 | 1.65 | 1.67 | 0.78 | 26.27 | ||||||||||||
1975 | 2.13 | 0.55 | ----- | z | 3.25 | 2.05 | 8.84 | 3.25 | 2.88 | 2.22 | 2.00 | 0.40 | 0.90 | 28.47 | a | |||||||||||
1976 | 1.05 | 1.10 | 2.05 | b | 0.68 | 0.10 | 5.11 | 1.75 | 4.77 | 0.33 | ----- | z | ----- | z | ----- | z | 16.94 | c | ||||||||
1977 | 0.58 | f | 2.67 | 1.76 | 0.66 | 4.27 | d | 2.58 | w | 2.12 | 2.59 | j | 5.96 | 1.93 | 0.37 | p | 1.34 | 20.71 | d | |||||||
1978 | 0.30 | 0.78 | ----- | z | 1.34 | 1.68 | 2.69 | 7.84 | 3.07 | 1.87 | 0.23 | 1.15 | c | ----- | z | 20.95 | b | |||||||||
1979 | ----- | z | ----- | z | 0.98 | c | 3.88 | ----- | z | 2.17 | j | 4.57 | 3.19 | 1.84 | 2.03 | ----- | z | ----- | z | 16.49 | f | |||||
1980 | ----- | z | ----- | z | ----- | z | 0.08 | a | 0.73 | 1.44 | 1.62 | 8.72 | 1.95 | 1.25 | 0.97 | b | ----- | z | 16.76 | d | ||||||
1981 | ----- | z | ----- | z | 0.47 | a | 0.60 | a | 2.10 | 7.21 | 2.18 | a | 3.91 | 2.80 | 2.42 | 0.56 | a | 0.79 | 23.04 | b | ||||||
1982 | ----- | z | 0.56 | s | 0.46 | b | 0.00 | a | 3.28 | ----- | z | ----- | z | 1.44 | 3.97 | 3.33 | 0.74 | a | 0.10 | k | 13.22 | e | ||||
1983 | 0.00 | f | 0.00 | b | 1.33 | a | 0.23 | c | 2.51 | 4.44 | 2.15 | c | 7.15 | f | 4.29 | 2.84 | 0.55 | i | ----- | z | 17.79 | d | ||||
1984 | 0.05 | a | 0.00 | c | 0.00 | c | 1.12 | a | 1.03 | 6.59 | 2.82 | 2.16 | 0.77 | 6.39 | 0.09 | b | 0.25 | d | 21.27 | |||||||
1985 | ----- | z | 0.25 | d | 0.25 | d | 2.34 | 3.64 | 5.47 | 2.38 | 9.88 | d | 3.05 | c | 0.84 | a | 0.14 | j | ----- | z | 28.10 | c | ||||
1986 | 0.00 | f | 0.00 | e | 0.00 | d | 3.28 | 0.87 | 1.59 | k | 3.51 | c | 1.46 | 4.04 | 0.14 | 0.88 | b | ----- | z | 14.18 | c | |||||
1987 | 0.00 | e | 0.05 | i | 0.66 | b | 0.19 | 5.97 | 0.77 | 5.43 | 2.22 | 1.95 | 0.92 | d | 0.24 | a | 0.00 | e | 18.35 | a | ||||||
1988 | ----- | z | 0.00 | c | 0.75 | g | 0.00 | 2.10 | 0.57 | 2.50 | 2.62 | 4.17 | ----- | z | 0.00 | y | ----- | z | 11.96 | e | ||||||
1989 | ----- | z | 0.00 | c | 0.00 | c | 0.63 | a | 3.75 | 4.93 | 0.97 | 4.30 | 1.45 | o | 0.31 | 0.23 | h | 0.00 | h | 14.89 | d | |||||
1990 | ----- | z | 0.00 | d | 0.93 | b | 0.85 | f | 1.44 | 5.38 | a | 1.43 | 2.14 | 2.00 | 0.69 | 0.10 | 0.00 | g | 14.11 | c | ||||||
1991 | ----- | z | 0.00 | d | 0.00 | b | 2.42 | 3.25 | e | 3.60 | 7.82 | 2.09 | 4.70 | 1.87 | a | 0.70 | c | 0.25 | d | 26.70 | a | |||||
1992 | 0.00 | d | 0.00 | d | 0.85 | c | 1.68 | b | 1.40 | 1.56 | 3.21 | b | 6.85 | 2.07 | 0.12 | a | 0.51 | g | ----- | z | 17.74 | b | ||||
1993 | 0.00 | g | 0.00 | 0.00 | a | 0.92 | 2.14 | 6.09 | 6.34 | j | 5.49 | 1.65 | 0.33 | b | ----- | z | 0.00 | b | 16.62 | c | ||||||
1994 | 0.00 | f | 0.00 | g | 0.25 | f | 0.50 | b | 2.17 | f | 6.44 | 4.27 | c | 4.81 | 2.44 | 2.55 | 1.23 | a | 0.00 | d | 22.24 | d | ||||
1995 | 0.00 | v | 0.00 | f | 1.44 | c | 0.63 | d | 2.69 | 1.93 | 3.83 | b | 4.23 | 1.28 | 2.82 | e | 0.50 | i | 0.00 | m | 18.85 | d | ||||
1996 | 0.00 | g | 0.00 | e | 0.00 | h | 1.35 | c | 2.94 | 2.40 | 3.61 | 3.34 | 3.29 | 2.30 | a | 2.43 | h | 0.00 | t | 19.23 | d | |||||
1997 | 0.00 | n | 0.00 | f | 0.00 | f | 2.25 | c | 2.38 | 3.92 | 4.55 | 1.33 | 2.70 | 2.35 | c | 0.12 | g | 0.00 | e | 19.48 | d | |||||
1998 | 0.00 | k | 0.84 | d | 0.16 | c | 0.89 | a | 6.00 | e | 3.93 | 4.29 | b | 2.94 | 0.45 | 3.88 | 0.00 | g | 0.00 | e | 23.38 | b | ||||
1999 | 0.00 | h | 0.00 | f | 0.50 | c | 1.86 | b | 6.09 | 5.89 | 5.13 | 5.25 | 8.39 | 0.31 | 0.00 | 0.00 | h | 33.42 | c | |||||||
2000 | 0.00 | f | 0.25 | d | 0.80 | 1.17 | c | 2.09 | 5.63 | 1.65 | 4.46 | 3.00 | 1.23 | b | 3.44 | f | 0.00 | k | 20.28 | c | ||||||
2001 | 0.00 | k | 0.00 | i | 0.00 | a | 3.45 | d | 4.76 | 4.56 | e | 6.81 | n | 8.55 | 2.15 | 2.47 | 0.27 | e | 0.20 | h | 26.21 | d | ||||
2002 | 0.00 | h | 0.00 | c | 0.00 | g | 1.25 | c | 4.16 | 6.21 | 3.48 | 5.22 | 0.96 | 0.35 | b | 0.00 | e | 0.00 | j | 21.63 | c | |||||
2003 | 0.00 | k | 0.00 | d | 0.00 | g | 0.79 | d | 2.28 | 5.26 | 1.27 | ----- | z | 2.98 | 0.48 | e | 1.00 | i | 0.50 | g | 13.06 | e | ||||
2004 | 0.00 | q | 0.00 | j | 0.10 | f | 0.49 | 4.63 | 1.48 | 3.69 | 4.43 | 3.39 | 4.43 | 0.00 | d | 0.00 | y | 22.54 | d | |||||||
2005 | 0.00 | m | 0.00 | h | 0.00 | e | 1.25 | 3.47 | 6.27 | 3.17 | 3.60 | 1.48 | 2.53 | 0.82 | f | 0.00 | m | 21.77 | d | |||||||
2006 | 0.00 | j | 0.00 | k | 1.30 | e | 1.61 | a | 1.00 | 1.18 | 0.71 | c | 3.06 | 1.98 | 0.90 | b | 0.00 | b | 0.69 | 12.43 | b | |||||
2007 | 0.00 | f | 0.00 | e | 0.50 | c | 1.86 | y | 1.93 | 8.15 | 2.53 | 1.52 | 1.86 | 3.69 | ----- | z | 0.00 | s | 20.18 | d | ||||||
2008 | 0.00 | c | 0.00 | h | 0.20 | c | 1.03 | h | 1.56 | 4.74 | 2.21 | 1.80 | ----- | z | 4.79 | 1.78 | ----- | z | 17.08 | d | ||||||
2009 | 0.00 | g | 0.28 | a | 2.63 | g | 1.21 | ----- | z | 2.49 | 2.62 | 2.42 | 1.56 | 1.84 | a | 0.37 | 0.00 | h | 12.79 | d | ||||||
2010 | 0.50 | a | 0.00 | g | 0.40 | 0.71 | 3.41 | 4.20 | 6.48 | 4.74 | 7.36 | 2.70 | 0.35 | f | 0.00 | d | 30.50 | b | ||||||||
2011 | ----- | z | 0.05 | x | 0.00 | y | 3.13 | v | 2.17 | t | 5.39 | s | 4.60 | w | 1.23 | u | 2.30 | w | 0.30 | y | 0.00 | y | 0.00 | w | 0.00 | l |
2012 | 0.00 | w | ----- | z | 2.42 | x | 1.31 | t | 1.18 | w | 2.06 | r | 2.93 | x | 1.58 | x | 0.10 | 2.89 | 0.71 | c | 0.00 | c | 3.70 | h | ||
2013 | 0.55 | g | 0.00 | e | 0.00 | e | 0.46 | d | 3.72 | 1.76 | 4.25 | 1.53 | 2.32 | 2.82 | 0.00 | e | 0.00 | k | 16.86 | b | ||||||
2014 | 6.84 | a | 0.26 | d | 5.70 | d | 4.18 | c | 3.30 | c | 5.10 | c | 3.93 | 1.23 | a | 3.63 | a | 1.35 | a | 2.71 | 2.50 | c | 40.73 | |||
2015 | 0.75 | a | 0.50 | 0.73 | b | 0.87 | b | 6.63 | c | 3.29 | a | 4.18 | d | 1.11 | c | 0.68 | g | 1.92 | c | 2.24 | 1.08 | 23.30 | a | |||
2016 | 0.53 | 0.51 | b | 0.80 | c | 1.35 | 2.48 | b | 4.36 | c | 2.33 | 6.49 | b | 2.52 | o | 0.72 | 0.64 | 1.05 | c | 21.26 | a | |||||
2017 | 1.55 | a | 1.10 | 0.41 | 0.94 | 1.56 | b | 4.00 | 2.57 | 3.30 | 5.65 | d | 1.67 | 1.30 | 0.90 | 24.95 | ||||||||||
2018 | 0.60 | c | 0.80 | 0.10 | b | 0.30 | 3.60 | d | 3.60 | 2.20 | a | 2.37 | 2.66 | 3.35 | 0.88 | 0.90 | 21.36 | |||||||||
2019 | 0.60 | b | 1.80 | 1.60 | 1.75 | 2.20 | 3.76 | 3.57 | 2.24 | a | 5.43 | 4.49 | 1.30 | 2.40 | 31.14 | |||||||||||
2020 | 1.20 | a | 0.20 | 0.70 | 2.02 | 1.12 | 8.12 | 5.22 | 3.83 | 0.72 | 1.13 | 0.00 | 0.50 | 24.76 | ||||||||||||
2021 | 0.10 | b | 0.00 | 0.47 | 4.86 | a | 1.88 | 1.67 | 0.73 | 5.87 | 4.33 | 3.12 | 1.16 | 2.02 | 26.21 | |||||||||||
2022 | 0.80 | 1.60 | 0.20 | 8.67 | 6.67 | a | 4.42 | 3.28 | 4.47 | 2.71 | a | 0.83 | 1.65 | 2.03 | 37.33 | |||||||||||
2023 | 0.23 | 0.35 | 1.45 | 1.95 | 1.83 | 2.47 | 2.61 | 2.59 | 2.80 | 2.73 | 1.28 | 1.65 | 21.94 | |||||||||||||
2024 | 0.76 | 1.55 | 1.30 | 2.02 | 1.57 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.63 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.75 | 0.44 | 0.82 | 1.65 | 2.72 | 4.04 | 3.50 | 3.49 | 2.79 | 1.88 | 0.85 | 0.79 | 24.43 | |||||||||||||
S.D. | 1.03 | 0.53 | 0.83 | 1.37 | 1.54 | 1.95 | 1.82 | 1.95 | 1.74 | 1.32 | 0.61 | 0.60 | 5.00 | |||||||||||||
SKEW | 4.47 | 1.95 | 3.17 | 2.18 | 0.95 | 0.25 | 0.96 | 1.09 | 0.91 | 0.89 | 0.85 | 1.00 | 1.51 | |||||||||||||
MAX | 6.84 | 2.67 | 5.70 | 8.67 | 6.88 | 8.84 | 9.20 | 9.88 | 8.39 | 6.39 | 2.71 | 2.50 | 40.73 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.57 | 0.71 | 0.71 | 0.10 | 0.12 | 0.00 | 0.00 | 18.69 | |||||||||||||
YRS | 48 | 63 | 67 | 74 | 73 | 71 | 72 | 73 | 73 | 75 | 57 | 51 | 33 |