YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | 0.80 | n | 1.90 | t | 2.50 | r | 1.05 | f | 0.74 | s | 0.02 | e | 0.62 | p | 0.10 | j | 0.00 | 0.31 | o | 0.63 | s | 6.05 | e | ----- | z | |
1956 | 8.15 | s | 2.84 | s | 1.09 | s | 0.64 | o | 0.92 | y | 0.34 | e | 3.17 | u | 1.23 | w | 0.49 | k | 1.66 | v | 3.55 | p | 0.00 | ----- | z | |
1957 | 0.29 | j | 0.52 | o | 0.00 | 0.44 | g | 0.35 | 0.53 | h | ----- | z | 3.90 | 2.95 | 0.51 | 0.25 | 1.37 | ----- | z | |||||||
1958 | 0.00 | 0.02 | 1.19 | 0.14 | 0.61 | 0.01 | 1.36 | 1.60 | 1.33 | 0.98 | 0.29 | 0.45 | 1.60 | |||||||||||||
1959 | 5.36 | 1.30 | 0.09 | 0.84 | 0.00 | 0.00 | f | 0.18 | 2.66 | 1.58 | 0.40 | a | 1.25 | c | 0.11 | 5.36 | j | |||||||||
1960 | 0.30 | 0.79 | 0.83 | 0.63 | c | 0.44 | a | 0.85 | 0.03 | 0.33 | 0.18 | 0.42 | 0.42 | 1.60 | 1.60 | d | ||||||||||
1961 | 0.10 | 0.34 | 0.19 | 0.40 | 0.23 | 0.07 | 0.34 | 0.58 | 0.30 | 0.64 | 1.10 | 1.21 | 1.21 | |||||||||||||
1962 | 0.58 | 0.05 | 0.71 | 0.48 | 0.75 | 0.24 | 0.02 | 0.64 | o | 0.73 | c | 0.05 | 0.04 | 0.10 | 0.75 | r | ||||||||||
1963 | 1.84 | 0.31 | 1.00 | 2.50 | 0.64 | 0.41 | 0.57 | 1.57 | 0.69 | 0.12 | 0.17 | 0.00 | 2.50 | |||||||||||||
1964 | 0.19 | 0.11 | 0.70 | 0.35 | 1.03 | 0.11 | 0.50 | 0.41 | 0.64 | 0.26 | 0.33 | 0.80 | 1.03 | |||||||||||||
1965 | 0.73 | 0.35 | 0.66 | 0.65 | 1.90 | 0.24 | 0.80 | 0.19 | 1.13 | 0.22 | 1.17 | 0.21 | 1.90 | |||||||||||||
1966 | 0.17 | 1.18 | 0.36 | 1.16 | 0.38 | 0.00 | 0.29 | 0.99 | 2.42 | 0.83 | 0.54 | 0.71 | 2.42 | |||||||||||||
1967 | 0.28 | 0.27 | 0.77 | 0.55 | 0.85 | 0.93 | 0.87 | 1.79 | 1.10 | 0.43 | 3.78 | 1.55 | 3.78 | |||||||||||||
1968 | 0.64 | 0.64 | 1.08 | 1.10 | 0.69 | 0.95 | 0.52 | 0.70 | 1.01 | 0.98 | 1.01 | 3.71 | 3.71 | |||||||||||||
1969 | 1.17 | 0.35 | 0.40 | 0.59 | 0.28 | 0.02 | 0.19 | 0.70 | 0.39 | 0.57 | 0.04 | 0.13 | 1.17 | |||||||||||||
1970 | 1.04 | 0.00 | 0.02 | 0.51 | 0.62 | 0.02 | 0.12 | 1.35 | 0.07 | 0.26 | 1.56 | 0.66 | 1.56 | |||||||||||||
1971 | 2.21 | a | 0.13 | 0.40 | 0.67 | d | 0.19 | 0.20 | 0.69 | 0.05 | 0.27 | 0.47 | 0.96 | 0.17 | 2.21 | e | ||||||||||
1972 | 1.00 | 0.30 | 0.86 | 0.43 | 0.51 | 0.20 | 1.10 | b | 0.86 | 0.46 | 0.75 | a | 0.13 | 3.13 | 3.13 | c | ||||||||||
1973 | 0.01 | 0.00 | 0.44 | 0.00 | 0.53 | 0.00 | 0.80 | 0.47 | 0.74 | 0.28 | 2.22 | 2.92 | 2.92 | |||||||||||||
1974 | 0.55 | 0.10 | 1.08 | 0.42 | 0.60 | 0.20 | 0.41 | 0.00 | 0.53 | 2.33 | 1.34 | 2.08 | 2.33 | |||||||||||||
1975 | 3.29 | 0.49 | 0.45 | 0.72 | 0.00 | 0.16 | 0.13 | 0.11 | 0.07 | 0.15 | 0.77 | 0.16 | 3.29 | |||||||||||||
1976 | 2.43 | 0.43 | 0.79 | 0.26 | 0.59 | 0.00 | 0.21 | 0.06 | 0.29 | 0.28 | ----- | z | 0.07 | ----- | z | |||||||||||
1977 | 0.00 | 0.24 | b | 0.11 | 1.09 | 0.82 | 0.03 | 0.21 | 1.26 | b | 0.55 | 0.47 | g | 0.20 | 0.38 | a | 1.26 | l | ||||||||
1978 | 0.01 | a | 0.00 | 0.13 | b | 0.60 | g | 1.02 | c | 0.49 | b | 0.57 | a | 0.98 | c | 0.42 | b | 0.16 | b | 3.54 | c | 0.23 | ----- | z | ||
1979 | 3.10 | c | 3.89 | g | 0.44 | b | 0.55 | b | 0.14 | b | 0.73 | b | 0.28 | a | 1.21 | b | 0.28 | a | 1.98 | b | 5.23 | c | 0.11 | a | ----- | z |
1980 | 6.82 | a | 0.69 | a | 5.35 | e | 0.35 | 0.41 | c | 0.15 | a | 0.67 | b | 0.24 | a | 0.89 | a | 0.47 | a | 0.08 | a | 0.51 | a | 6.82 | r | |
1981 | 0.00 | 0.08 | b | 0.29 | a | 0.28 | a | 0.11 | a | 0.02 | 0.00 | 1.28 | a | 0.85 | b | 0.00 | 0.78 | b | 5.29 | b | 5.29 | l | ||||
1982 | 6.86 | b | 4.08 | a | 4.83 | c | 0.63 | a | 0.29 | d | 0.18 | a | 1.73 | b | 1.44 | d | 0.46 | a | 0.14 | a | 1.49 | b | 0.95 | c | 6.86 | y |
1983 | 0.00 | i | 0.00 | 0.00 | 0.24 | a | 0.14 | 1.41 | a | 0.05 | 0.73 | a | 0.14 | b | 0.25 | i | 0.02 | j | 1.41 | b | ----- | z | ||||
1984 | 0.18 | a | 0.16 | b | 0.35 | 0.18 | a | 0.26 | 0.00 | 0.13 | d | 0.47 | 0.64 | c | 0.18 | 0.46 | d | 0.96 | e | 0.96 | t | |||||
1985 | 0.37 | h | 1.09 | a | 1.98 | c | 0.22 | f | 0.33 | b | 0.07 | 0.46 | 0.87 | b | 0.09 | 0.63 | c | 1.40 | a | 0.22 | ----- | z | ||||
1986 | 0.00 | 0.74 | b | 0.65 | b | 4.45 | b | 1.16 | a | 0.17 | a | 1.02 | 2.05 | b | 2.63 | d | 0.10 | a | 2.31 | 0.41 | a | 4.45 | p | |||
1987 | 0.05 | b | 1.05 | b | 0.16 | 0.16 | 1.45 | c | 0.59 | c | 0.35 | 0.01 | 1.48 | d | 1.42 | a | 0.45 | a | 11.50 | b | 11.50 | r | ||||
1988 | 2.76 | c | 0.02 | b | 1.53 | a | 1.16 | b | 0.00 | 0.76 | 0.00 | 0.57 | a | 0.13 | b | 0.75 | d | 2.04 | d | 1.01 | e | 2.76 | x | |||
1989 | 0.98 | f | 1.44 | b | 1.27 | c | 1.56 | g | 1.69 | e | 0.99 | a | 1.74 | b | 0.31 | c | 0.39 | b | 0.92 | e | 0.01 | 1.15 | c | ----- | z | |
1990 | 8.61 | f | 2.73 | c | 0.33 | h | 0.03 | 0.04 | 0.01 | 0.40 | b | 0.63 | a | 0.29 | g | 0.43 | a | 4.13 | d | 6.10 | b | ----- | z | |||
1991 | 4.50 | g | 0.58 | b | 1.20 | f | 0.30 | a | 0.00 | 0.34 | 0.33 | 0.58 | s | 0.93 | u | 0.12 | 0.00 | a | 0.40 | a | ----- | z | ||||
1992 | 0.03 | 0.26 | 0.00 | 0.00 | 0.00 | b | 0.00 | 1.12 | a | 1.11 | c | 1.85 | b | 0.26 | a | 2.43 | b | 0.39 | b | 2.43 | m | |||||
1993 | 5.47 | d | 0.04 | a | 0.30 | a | 0.00 | 0.03 | c | 0.00 | a | 4.09 | d | 0.45 | b | 0.54 | b | 1.37 | c | 0.04 | 0.51 | a | 5.47 | v | ||
1994 | 1.93 | a | 0.76 | a | 1.05 | a | 0.00 | 0.11 | b | 0.24 | b | 0.98 | d | 0.84 | a | 1.71 | d | 0.24 | a | 1.10 | c | 0.00 | 1.93 | t | ||
1995 | 0.45 | c | 1.22 | a | 0.34 | a | 0.18 | 0.17 | d | 0.04 | 0.17 | a | 0.20 | c | 0.00 | 0.43 | a | 0.65 | c | 0.00 | a | 1.22 | r | |||
1996 | 1.95 | e | 3.59 | d | 5.57 | c | 0.09 | 0.00 | a | 0.76 | d | 1.53 | c | 0.04 | b | 0.29 | a | 0.83 | a | 1.12 | d | 0.69 | b | ----- | z | |
1997 | 2.16 | c | 0.89 | 1.24 | c | 0.66 | a | 0.05 | a | 0.70 | a | 2.01 | a | 0.77 | b | 0.78 | c | 0.91 | b | 1.78 | d | 0.00 | 2.16 | u | ||
1998 | 0.32 | a | 0.03 | 0.00 | 0.02 | 0.13 | b | 0.03 | 0.21 | a | 0.56 | b | 0.06 | b | 0.37 | a | 0.19 | b | 0.02 | a | 0.56 | l | ||||
1999 | 0.38 | e | 0.55 | a | 0.12 | b | 0.34 | b | 0.20 | c | 1.13 | 0.07 | 0.00 | 0.05 | 1.11 | 0.26 | 1.03 | b | 1.13 | o | ||||||
2000 | 0.16 | c | 0.31 | 0.05 | a | 0.01 | 0.01 | b | 0.04 | a | 0.03 | a | 0.59 | e | 0.72 | c | 1.62 | b | 3.50 | c | 0.00 | b | 3.50 | w | ||
2001 | 0.01 | b | 0.45 | a | 0.07 | 0.11 | c | 0.34 | 0.40 | b | 0.97 | b | 0.19 | a | 0.23 | e | 0.35 | a | 2.55 | a | 3.10 | b | 3.10 | t | ||
2002 | 1.76 | c | 0.66 | b | 0.18 | b | 1.12 | a | 3.20 | e | 0.01 | b | 1.27 | b | 0.62 | a | 0.95 | c | 0.66 | b | 0.00 | a | 0.04 | 3.20 | x | |
2003 | 0.09 | b | 0.88 | b | 0.33 | b | 0.43 | b | 0.35 | b | 0.55 | b | 1.15 | a | 0.19 | b | 3.53 | b | 0.08 | c | 0.48 | a | 2.85 | d | 3.53 | y |
2004 | 1.61 | b | 0.28 | c | 4.27 | c | 1.15 | d | 1.15 | d | 0.05 | c | 0.63 | b | 1.08 | b | 0.20 | c | 1.51 | c | 0.40 | a | 0.52 | ----- | z | |
2005 | 4.54 | e | 1.55 | b | 0.97 | b | 0.36 | b | 0.00 | 0.34 | a | 0.27 | c | 1.26 | b | 0.75 | 0.09 | d | 0.19 | 0.22 | a | 4.54 | v | |||
2006 | 1.48 | a | 0.63 | c | 1.34 | d | 0.27 | c | 1.54 | b | 0.08 | a | 0.42 | a | 0.74 | c | 0.19 | a | 0.25 | b | 0.28 | 0.54 | c | 1.54 | x | |
2007 | 0.40 | a | 0.36 | d | 0.32 | b | 0.00 | 0.85 | a | 0.00 | 1.88 | b | 1.02 | 0.42 | e | 0.58 | a | 0.62 | b | 3.33 | e | 3.33 | w | |||
2008 | 0.26 | 1.07 | b | 0.22 | a | 0.70 | d | 0.00 | a | 0.18 | a | 0.75 | 1.42 | a | 0.02 | a | 0.24 | b | 0.15 | d | 2.82 | c | 2.82 | t | ||
2009 | 0.20 | b | 0.47 | b | 1.45 | b | 0.68 | b | 0.08 | b | 0.04 | 0.78 | c | 0.48 | e | 0.00 | 0.68 | c | 0.29 | c | 0.15 | a | 1.45 | y | ||
2010 | 0.00 | b | 0.06 | b | 0.06 | a | 0.46 | a | 0.00 | b | 0.01 | 0.00 | k | 0.00 | 0.01 | 0.04 | b | 0.11 | a | 0.76 | e | ----- | z | |||
2011 | 0.28 | a | 0.22 | a | 0.72 | b | 0.38 | b | 0.57 | c | 0.44 | a | 0.09 | f | 1.32 | d | 0.28 | e | 0.04 | b | 0.32 | e | 0.98 | c | ----- | z |
2012 | 0.00 | p | 0.78 | m | 0.45 | c | 0.35 | a | 0.00 | e | 0.00 | g | 0.02 | f | 1.50 | f | 0.03 | f | 0.42 | d | 1.04 | g | 0.08 | h | ----- | z |
2013 | 0.21 | f | 0.50 | e | 0.73 | e | 0.45 | d | 0.55 | e | 0.03 | e | 0.38 | g | 0.01 | d | 0.05 | f | 0.73 | e | 0.23 | g | 0.39 | e | ----- | z |
2014 | 1.04 | e | 0.56 | e | 1.86 | e | 0.42 | e | 0.26 | f | 0.19 | e | 0.58 | e | 2.59 | g | 1.10 | e | 4.76 | e | 0.44 | g | 0.40 | f | ----- | z |
2015 | 4.35 | h | 0.09 | e | 2.00 | e | 0.25 | d | 0.33 | f | 0.19 | e | 0.81 | e | 2.24 | f | 0.46 | d | 1.05 | d | 0.02 | f | 0.04 | e | ----- | z |
2016 | 0.00 | g | 0.00 | e | 0.05 | d | 0.00 | d | 0.33 | f | 0.09 | d | 1.75 | f | 1.10 | d | 0.77 | e | 0.18 | e | 0.00 | g | 4.72 | e | ----- | z |
2017 | 0.04 | g | 0.12 | e | 0.87 | d | 0.57 | e | 1.07 | e | 0.12 | d | 0.05 | e | 1.22 | d | 0.58 | e | 0.41 | f | 1.10 | g | 1.14 | f | ----- | z |
2018 | 0.70 | f | 0.53 | e | 3.00 | d | 1.30 | e | 0.26 | e | 0.00 | d | 0.24 | e | 8.74 | f | 0.55 | f | 0.92 | e | 0.11 | h | 0.22 | h | ----- | z |
2019 | 0.00 | g | 2.18 | e | 0.02 | e | 0.37 | d | 0.09 | e | 0.27 | e | 1.16 | d | 1.42 | d | 0.63 | f | 0.70 | e | 0.46 | g | 0.49 | f | ----- | z |
2020 | 3.88 | e | 0.12 | e | 1.36 | d | 0.38 | d | 0.20 | f | 0.00 | d | 0.64 | e | 0.45 | f | 1.14 | e | 0.48 | e | 0.90 | g | 0.29 | g | ----- | z |
2021 | 2.25 | g | 0.28 | f | 1.80 | d | 0.19 | d | 1.86 | f | 0.56 | e | 0.27 | f | 1.08 | g | 0.20 | f | 0.15 | g | 0.25 | f | 4.90 | e | ----- | z |
2022 | 0.34 | g | 0.12 | e | 0.06 | d | 1.41 | c | 1.16 | c | 0.23 | d | 0.27 | a | 0.38 | 0.33 | e | 0.52 | f | 0.11 | j | ----- | z | ----- | z | |
2023 | 0.00 | x | 0.31 | w | 7.30 | w | 1.78 | y | ----- | z | ----- | z | 1.75 | x | 0.19 | x | ----- | z | 0.00 | v | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.37 | 0.62 | 0.94 | 0.56 | 0.51 | 0.27 | 0.66 | 0.82 | 0.71 | 0.64 | 1.06 | 1.41 | 2.28 | |||||||||||||
S.D. | 1.80 | 0.80 | 1.23 | 0.67 | 0.58 | 0.33 | 0.68 | 0.71 | 0.74 | 0.72 | 1.20 | 2.06 | 0.93 | |||||||||||||
SKEW | 1.66 | 2.57 | 2.41 | 3.68 | 2.10 | 1.48 | 2.46 | 1.72 | 1.87 | 3.41 | 1.62 | 2.60 | 0.25 | |||||||||||||
MAX | 6.86 | 4.08 | 5.57 | 4.45 | 3.20 | 1.41 | 4.09 | 3.90 | 3.53 | 4.76 | 5.23 | 11.50 | 3.78 | |||||||||||||
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 | 1.03 | |||||||||||||
YRS | 51 | 62 | 64 | 62 | 61 | 65 | 59 | 58 | 60 | 61 | 53 | 61 | 15 |