YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | 0.82 | a | 0.98 | 0.00 | 0.04 | 0.26 | 1.63 | 3.51 | 3.01 | 1.96 | ----- | z | ||||||||
1952 | 1.81 | 1.84 | 1.20 | a | 1.91 | a | 0.58 | 0.36 | 0.00 | 0.15 | 0.00 | ----- | z | 0.93 | 2.95 | a | ----- | z | ||||||||
1953 | 8.07 | 3.45 | 1.58 | 1.87 | 1.82 | 1.16 | 0.18 | 2.23 | ----- | z | ----- | z | 6.00 | d | 2.00 | ----- | z | |||||||||
1954 | 3.25 | ----- | z | 3.23 | 0.90 | 0.71 | 1.20 | 0.70 | 0.17 | 1.98 | a | 1.65 | 0.63 | f | 3.50 | ----- | z | |||||||||
1955 | 2.00 | 1.32 | 3.00 | 1.46 | 0.96 | ----- | z | ----- | z | ----- | z | 2.20 | 1.64 | f | 13.18 | e | ----- | z | ----- | z | ||||||
1956 | ----- | z | 2.10 | q | 0.60 | 0.23 | ----- | z | 0.00 | s | 0.04 | 0.00 | 1.98 | a | 2.82 | 0.98 | 1.32 | ----- | z | |||||||
1957 | 1.14 | 2.48 | 1.21 | 1.63 | i | 1.41 | 1.32 | 0.28 | 0.24 | 3.02 | 1.84 | d | 1.12 | 2.36 | 3.02 | m | ||||||||||
1958 | 2.32 | 4.15 | 1.32 | 1.61 | 0.37 | 0.18 | 0.33 | 0.04 | 0.76 | 2.05 | 4.19 | 1.86 | 4.19 | |||||||||||||
1959 | 3.22 | 4.85 | 1.24 | 0.66 | 0.94 | 0.61 | 0.02 | 0.03 | 1.08 | 0.86 | 0.39 | 1.41 | 4.85 | |||||||||||||
1960 | 1.09 | 2.03 | 2.24 | 0.77 | 1.47 | 0.05 | 0.03 | 0.07 | 0.13 | 1.33 | 4.73 | 2.24 | 4.73 | |||||||||||||
1961 | 2.51 | 7.04 | 1.69 | 3.02 | 1.32 | 0.77 | 0.10 | 0.18 | 0.69 | 2.67 | 5.23 | 2.00 | 7.04 | |||||||||||||
1962 | 1.05 | 2.51 | 3.46 | 2.30 | 0.77 | 0.83 | 0.05 | 0.70 | 0.71 | 2.10 | 2.38 | 2.50 | 3.46 | |||||||||||||
1963 | 1.08 | 1.38 | 1.37 | 2.05 | a | 3.22 | 0.84 | 0.53 | 0.04 | 0.45 | 3.30 | 3.18 | 1.72 | 3.30 | a | |||||||||||
1964 | 3.23 | 0.92 | 2.75 | 0.40 | 0.43 | 1.10 | 0.48 | 0.45 | 0.54 | 0.96 | 2.09 | 2.23 | 3.23 | |||||||||||||
1965 | 2.27 | 0.89 | 0.89 | 1.76 | 0.71 | 0.42 | 0.07 | 0.25 | 0.05 | 0.68 | 1.95 | 3.94 | 3.94 | |||||||||||||
1966 | 2.25 | 0.77 | 3.63 | 1.19 | 0.26 | 0.25 | 0.62 | 0.30 | 1.02 | 0.85 | 2.02 | 1.59 | 3.63 | |||||||||||||
1967 | 1.44 | 1.22 | 1.76 | 1.39 | 1.02 | 0.20 | 0.00 | 0.00 | 0.39 | 1.20 | 2.07 | 2.39 | 2.39 | |||||||||||||
1968 | 1.99 | 3.13 | 3.36 | 0.43 | 0.96 | 1.07 | 0.16 | 1.95 | 0.84 | 1.98 | 1.59 | 4.47 | 4.47 | |||||||||||||
1969 | 2.52 | 1.77 | 0.87 | 1.65 | 0.64 | 0.56 | 0.23 | 0.01 | 1.06 | 1.15 | 2.54 | 4.36 | 4.36 | |||||||||||||
1970 | 3.52 | 2.68 | 1.14 | 1.29 | 0.81 | 0.42 | 0.02 | 0.00 | 0.30 | 1.46 | 2.09 | 2.06 | 3.52 | |||||||||||||
1971 | 2.97 | 0.99 | 1.52 | 3.75 | 0.82 | 2.49 | 0.54 | 1.42 | 1.19 | 2.42 | 3.05 | 4.05 | 4.05 | |||||||||||||
1972 | 3.39 | 1.96 | 3.48 | 1.18 | 0.69 | 0.19 | 0.04 | 1.20 | 0.85 | 0.40 | 1.35 | 2.54 | 3.48 | |||||||||||||
1973 | 1.71 | 1.29 | 2.14 | 0.51 | 0.93 | ----- | z | 0.00 | 0.28 | 2.10 | 1.06 | 4.45 | 3.20 | ----- | z | |||||||||||
1974 | 5.80 | 1.97 | 3.26 | 0.73 | 0.54 | 0.50 | 1.21 | 0.00 | 0.15 | 0.36 | 2.94 | 2.19 | 5.80 | |||||||||||||
1975 | 2.95 | 2.02 | 2.20 | 1.30 | 1.55 | 0.53 | 0.08 | 1.36 | 0.00 | 2.22 | b | 2.38 | 2.67 | 2.95 | b | |||||||||||
1976 | 3.17 | 2.51 | a | 1.70 | 1.07 | 0.27 | 0.23 | 0.70 | 2.03 | 0.54 | 0.87 | 1.09 | 1.20 | 3.17 | a | |||||||||||
1977 | 0.74 | 1.67 | 3.57 | 0.66 | 1.01 | 0.52 | 0.04 | 4.12 | 1.86 | 1.25 | 3.18 | a | 3.23 | 4.12 | a | |||||||||||
1978 | 2.63 | 2.10 | 1.69 | 2.19 | 2.88 | a | 0.50 | 0.23 | 1.64 | 1.27 | 0.14 | 2.86 | 1.56 | 2.88 | a | |||||||||||
1979 | 2.68 | 2.28 | a | 1.24 | 2.12 | 1.80 | 0.43 | 0.84 | 0.29 | a | 2.92 | a | 2.37 | b | 2.26 | i | 2.44 | e | 2.92 | s | ||||||
1980 | 3.14 | a | 2.91 | g | 2.85 | t | 4.71 | q | 0.94 | d | 0.78 | 0.11 | 0.04 | 0.63 | 1.23 | 1.57 | 5.23 | a | ----- | z | ||||||
1981 | 2.39 | 1.77 | 1.63 | c | 0.71 | 0.53 | 1.03 | 0.04 | 0.04 | 1.72 | 2.73 | a | 2.13 | a | 4.47 | 4.47 | e | |||||||||
1982 | 2.11 | 2.28 | a | 2.41 | k | 2.64 | 0.20 | 1.00 | 0.27 | 0.04 | 0.66 | a | 1.22 | 1.73 | 2.26 | a | 2.64 | n | ||||||||
1983 | 2.10 | 2.41 | 2.34 | 1.70 | 0.64 | 0.82 | 1.41 | 1.47 | 0.35 | 1.66 | 1.83 | 2.14 | 2.41 | |||||||||||||
1984 | 1.03 | 2.20 | 1.48 | 1.00 | 1.42 | 0.78 | 0.17 | 0.04 | 0.09 | 2.23 | 2.24 | e | 0.77 | 2.24 | e | |||||||||||
1985 | 0.36 | 2.01 | 2.12 | 0.73 | 0.78 | 3.53 | 0.05 | 0.06 | 0.65 | 2.34 | 1.66 | 1.09 | 3.53 | |||||||||||||
1986 | 2.67 | 2.92 | 2.10 | 1.03 | 1.72 | 0.90 | 0.49 | ----- | z | 2.57 | 2.33 | 3.03 | b | 0.77 | ----- | z | ||||||||||
1987 | 1.98 | 2.88 | 2.95 | 0.77 | b | 0.75 | 0.33 | 0.19 | 0.17 | 0.06 | 0.12 | 0.91 | 6.26 | 6.26 | b | |||||||||||
1988 | 2.52 | 0.72 | 0.81 | 1.10 | 1.15 | 1.13 | 0.20 | 0.00 | 0.75 | a | 0.10 | 2.11 | 1.99 | 2.52 | a | |||||||||||
1989 | 1.81 | 1.45 | c | 2.35 | 0.85 | 0.94 | 0.72 | 0.35 | 0.91 | 0.21 | 2.54 | 0.83 | 1.20 | 2.54 | c | |||||||||||
1990 | 2.63 | 2.12 | b | 1.69 | 0.85 | 2.25 | 1.01 | 0.53 | 0.92 | 0.07 | 3.86 | 2.82 | c | 1.17 | 3.86 | e | ||||||||||
1991 | 1.31 | 1.58 | 2.65 | a | 2.52 | 2.35 | 0.12 | 0.16 | 0.46 | 0.00 | 0.88 | 2.98 | h | 2.85 | 2.98 | i | ||||||||||
1992 | 1.55 | a | 1.92 | 1.49 | 3.45 | 0.18 | 0.36 | 0.60 | 0.11 | 0.77 | 1.53 | 1.05 | 1.60 | 3.45 | a | |||||||||||
1993 | 0.95 | 2.96 | 2.11 | 2.82 | 1.72 | 0.77 | 0.72 | d | 0.50 | 0.00 | 0.29 | 0.69 | 4.15 | 4.15 | d | |||||||||||
1994 | 2.09 | 2.46 | 1.27 | 1.02 | 1.34 | 0.70 | 0.00 | 0.02 | 0.69 | 1.62 | 1.87 | 1.19 | 2.46 | |||||||||||||
1995 | 4.69 | 2.01 | 1.73 | 1.50 | 2.12 | 1.24 | 0.10 | 0.20 | 0.41 | 1.95 | 2.39 | 2.29 | 4.69 | |||||||||||||
1996 | 2.41 | 2.32 | 2.80 | c | 1.67 | 2.58 | a | 0.30 | 0.29 | 0.05 | 0.72 | 1.29 | 7.33 | 2.65 | 7.33 | d | ||||||||||
1997 | 3.16 | 0.86 | 2.00 | 0.92 | a | 1.47 | 0.71 | 0.42 | 1.24 | 2.07 | 2.49 | d | 1.95 | 1.71 | 3.16 | e | ||||||||||
1998 | 1.98 | 2.69 | 1.60 | 1.09 | 1.84 | 0.51 | 0.05 | 0.03 | 0.22 | 1.51 | 3.98 | 2.75 | 3.98 | |||||||||||||
1999 | 3.27 | a | 1.92 | b | 1.69 | b | 1.11 | c | 1.47 | 0.27 | a | 0.07 | d | 0.46 | a | 0.00 | 1.67 | b | 2.26 | c | 1.84 | 3.27 | s | |||
2000 | 3.14 | 3.30 | a | 0.75 | 0.89 | f | 0.59 | 1.12 | 0.08 | c | 0.01 | 0.33 | b | 1.66 | b | 1.09 | a | 2.07 | 3.30 | o | ||||||
2001 | 1.01 | 1.26 | 0.78 | a | 1.19 | 1.30 | 0.98 | 0.09 | 0.62 | 0.22 | 1.71 | b | 1.62 | 1.94 | 1.94 | c | ||||||||||
2002 | 4.12 | 2.14 | 2.40 | 1.42 | 0.83 | 1.09 | 0.01 | 0.00 | 0.58 | b | 0.22 | 1.63 | 3.50 | 4.12 | b | |||||||||||
2003 | 2.24 | b | 1.31 | 1.39 | c | 1.12 | 0.75 | 0.25 | 0.02 | 0.05 | 0.26 | 0.38 | 1.41 | a | 4.64 | 4.64 | f | |||||||||
2004 | 3.27 | 1.07 | 0.97 | d | 1.37 | s | 0.73 | 0.82 | 0.02 | 0.30 | 1.22 | 1.85 | 1.53 | 1.92 | 3.27 | w | ||||||||||
2005 | 1.07 | 1.25 | 1.33 | 1.43 | 1.66 | a | 0.81 | 0.17 | 0.00 | 1.63 | 1.15 | b | 1.94 | a | 1.97 | 1.97 | d | |||||||||
2006 | 2.21 | 1.79 | 1.01 | a | 1.75 | d | 0.71 | 1.17 | 0.05 | 0.02 | c | 0.24 | 0.40 | 2.00 | b | 7.48 | e | 7.48 | o | |||||||
2007 | 2.17 | a | 0.90 | 1.31 | 0.73 | a | 0.69 | 0.37 | 0.46 | 0.69 | 0.65 | 2.19 | 3.30 | 3.02 | f | 3.30 | h | |||||||||
2008 | 1.93 | 1.31 | a | 1.03 | g | 0.57 | a | 0.20 | a | 0.40 | 0.12 | 0.90 | f | 0.23 | 0.30 | a | 1.06 | b | 1.73 | b | 1.93 | u | ||||
2009 | 0.71 | 1.03 | 1.58 | 0.48 | 0.66 | 0.39 | 0.16 | 0.24 | l | 0.38 | a | 0.66 | 1.89 | 1.16 | a | 1.89 | n | |||||||||
2010 | 1.24 | b | 1.76 | b | 1.09 | 1.36 | 0.95 | a | 1.32 | 0.10 | 0.00 | 0.80 | c | 0.34 | 4.39 | e | 1.13 | a | 4.39 | n | ||||||
2011 | 1.20 | q | 1.19 | h | 6.12 | m | 1.30 | m | 0.42 | i | 0.32 | p | 0.12 | v | ----- | z | ----- | z | 1.19 | s | 1.72 | m | 1.75 | s | ----- | z |
2012 | 4.36 | m | 1.62 | 12.37 | t | 2.58 | d | 0.58 | t | 1.38 | 0.30 | e | 0.22 | h | 0.00 | d | 1.36 | 2.63 | a | 1.85 | s | ----- | z | |||
2013 | 2.77 | v | 1.07 | 1.61 | e | 2.36 | e | 0.43 | c | 0.95 | f | 1.99 | h | 0.54 | f | 2.09 | a | 0.20 | c | 2.18 | e | 0.61 | e | ----- | z | |
2014 | 0.81 | c | 0.07 | v | 12.36 | p | 0.77 | e | 0.72 | b | 0.21 | f | 0.00 | 0.00 | 2.58 | 2.55 | 1.87 | k | 2.86 | f | ----- | z | ||||
2015 | 1.34 | p | 7.37 | o | 1.65 | m | 0.97 | 0.13 | 0.44 | 0.00 | 0.73 | 0.91 | 1.20 | 1.73 | 8.48 | f | ----- | z | ||||||||
2016 | 3.71 | h | 0.98 | b | 11.84 | n | 1.61 | a | 0.33 | a | 0.45 | 0.63 | a | ----- | z | 0.31 | 3.98 | e | 3.20 | b | 2.43 | f | ----- | z | ||
2017 | 6.96 | q | 3.95 | a | 2.43 | a | 1.72 | 1.46 | 2.93 | c | 0.00 | 0.00 | 0.80 | 5.22 | a | ----- | z | ----- | z | ----- | z | |||||
2018 | 2.19 | a | 2.26 | 5.53 | l | 1.74 | 0.07 | a | 0.44 | a | 0.00 | 0.24 | 0.36 | d | 1.26 | d | 1.46 | b | 1.79 | c | ----- | z | ||||
2019 | 2.21 | 1.99 | l | 11.51 | j | 3.41 | 0.00 | v | 0.05 | p | 0.35 | i | 0.58 | 1.34 | 1.11 | a | 2.06 | 2.46 | ----- | z | ||||||
2020 | 2.23 | 0.86 | ----- | z | 0.67 | n | 1.43 | 0.89 | b | 0.00 | f | 0.15 | 1.23 | 1.24 | f | 1.47 | 1.83 | ----- | z | |||||||
2021 | 3.36 | d | 1.90 | 1.66 | c | 1.40 | 0.76 | d | 2.10 | 0.12 | 0.00 | 1.50 | 1.42 | 3.81 | m | 2.76 | c | ----- | z | |||||||
2022 | 2.76 | e | 2.86 | a | 1.19 | f | 1.85 | 2.00 | a | 0.79 | a | 0.00 | 0.00 | 1.01 | b | 0.40 | 2.20 | b | 4.26 | e | 4.26 | w | ||||
2023 | 7.21 | r | 2.95 | n | 3.94 | b | 1.59 | j | 0.42 | g | 0.42 | 0.00 | 0.12 | 3.14 | 1.40 | d | 2.54 | e | 3.10 | ----- | z | |||||
2024 | 3.19 | c | 3.02 | f | 1.88 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.38 | 2.05 | 1.91 | 1.44 | 1.07 | 0.79 | 0.24 | 0.46 | 0.90 | 1.56 | 2.50 | 2.50 | 3.85 | |||||||||||||
S.D. | 1.23 | 1.07 | 0.84 | 0.78 | 0.67 | 0.63 | 0.29 | 0.72 | 0.81 | 1.02 | 1.84 | 1.31 | 1.30 | |||||||||||||
SKEW | 1.76 | 1.97 | 0.69 | 0.99 | 1.01 | 2.19 | 1.85 | 2.68 | 1.06 | 0.95 | 3.41 | 1.43 | 0.97 | |||||||||||||
MAX | 8.07 | 7.04 | 3.94 | 3.75 | 3.22 | 3.53 | 1.41 | 4.12 | 3.14 | 5.22 | 13.18 | 7.48 | 7.33 | |||||||||||||
MIN | 0.36 | 0.72 | 0.60 | 0.23 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.39 | 0.61 | 1.94 | |||||||||||||
YRS | 65 | 64 | 60 | 66 | 68 | 66 | 68 | 65 | 71 | 68 | 66 | 65 | 34 |