YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.17 | a | 0.42 | 0.59 | j | |
1957 | 0.00 | 0.62 | 0.43 | 1.02 | 3.19 | 0.52 | 0.14 | 0.00 | 0.00 | 0.76 | c | 1.69 | 1.12 | 9.49 | ||||||||||||
1958 | 0.43 | 1.53 | 1.18 | 1.10 | 0.10 | 2.85 | 0.02 | f | 0.00 | f | 0.00 | b | 0.13 | 0.19 | 0.23 | 7.74 | b | |||||||||
1959 | 1.28 | 0.67 | 0.17 | 0.07 | 0.93 | b | 0.18 | 0.02 | 0.39 | 1.52 | 0.36 | 0.00 | 0.71 | 6.30 | ||||||||||||
1960 | 1.22 | 1.81 | 1.03 | 0.46 | 0.64 | 0.00 | 0.97 | 0.10 | 0.36 | 0.07 | 3.44 | 0.84 | 10.94 | |||||||||||||
1961 | 0.29 | 0.99 | 1.02 | 0.15 | 0.59 | 1.59 | 0.26 | 2.25 | 0.86 | 0.46 | 0.40 | 1.50 | 10.36 | |||||||||||||
1962 | 0.53 | 2.30 | 1.31 | 0.00 | 0.54 | f | 0.08 | 0.00 | 0.25 | 0.06 | ----- | z | 1.45 | 0.36 | m | 5.98 | c | |||||||||
1963 | 1.52 | b | 0.72 | 0.43 | 0.32 | 0.97 | 1.63 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.59 | f | |||||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 0.33 | 0.13 | 0.05 | 0.02 | 0.34 | ----- | z | 1.73 | 3.82 | 6.42 | e | |||||||
1967 | 2.33 | b | 0.35 | 0.70 | ----- | z | 0.25 | 1.48 | 0.30 | ----- | z | 0.00 | 0.00 | ----- | z | ----- | z | 5.41 | d | |||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | g | 0.05 | 0.81 | 0.00 | 0.30 | 1.66 | 1.05 | 3.87 | f | ||||||
1969 | 3.42 | 1.12 | 0.09 | 0.78 | 0.70 | 1.14 | 0.19 | 0.00 | 0.00 | 0.81 | 0.37 | 1.76 | 10.38 | |||||||||||||
1970 | 1.98 | 0.63 | 0.37 | 0.61 | ----- | z | 2.52 | 0.24 | 0.19 | 0.29 | 0.25 | ----- | z | 1.65 | 8.73 | b | ||||||||||
1971 | 0.66 | 0.06 | 0.86 | 0.16 | 2.51 | 1.69 | 0.00 | 0.08 | 0.91 | 0.60 | 1.33 | 1.11 | 9.97 | |||||||||||||
1972 | 0.59 | 0.37 | 0.64 | 0.34 | 0.00 | 1.22 | 0.01 | 0.00 | 0.36 | i | 0.19 | 1.87 | ----- | z | 5.23 | b | ||||||||||
1973 | 1.39 | h | 0.02 | 0.14 | 1.52 | ----- | z | ----- | z | 0.04 | 0.24 | ----- | z | ----- | z | 0.84 | 1.74 | c | 4.54 | e | ||||||
1974 | 0.52 | a | 0.42 | 0.78 | 0.86 | 0.30 | 0.00 | 1.09 | 0.20 | ----- | z | ----- | z | ----- | z | ----- | z | 4.17 | d | |||||||
1975 | ----- | z | ----- | z | ----- | z | 0.02 | n | 0.19 | 0.93 | 0.05 | 0.41 | a | ----- | z | 1.38 | ----- | z | 0.28 | l | 2.96 | g | ||||
1976 | 0.73 | 1.41 | 0.47 | 0.27 | 0.36 | 0.84 | 0.42 | 2.64 | 1.21 | 0.13 | ----- | z | 0.00 | 8.48 | a | |||||||||||
1977 | 0.69 | b | 0.26 | 0.08 | 0.05 | 1.32 | 0.66 | 0.11 | 0.47 | 0.17 | 0.14 | 0.98 | b | 1.53 | 6.46 | |||||||||||
1978 | 1.38 | 1.30 | ----- | z | 1.80 | 0.08 | 0.26 | 0.13 | 0.01 | 0.87 | 0.01 | 0.83 | 0.05 | 6.72 | a | |||||||||||
1979 | 1.61 | 1.03 | 1.06 | 0.25 | 0.57 | 0.13 | a | 0.35 | ----- | z | 0.07 | 0.68 | 0.96 | c | 1.38 | 8.09 | a | |||||||||
1980 | 1.11 | j | 1.53 | d | 0.37 | 0.44 | 0.93 | 0.31 | 0.43 | 0.00 | 0.54 | 0.29 | ----- | z | 0.53 | p | 4.84 | c | ||||||||
1981 | 1.00 | 0.22 | 1.22 | 0.10 | 0.95 | 0.32 | 0.28 | 0.04 | 0.25 | 1.13 | 2.17 | 2.56 | b | 10.24 | ||||||||||||
1982 | 0.65 | b | 0.58 | a | 0.57 | 0.35 | t | 0.01 | 0.80 | 0.80 | ----- | z | 0.72 | 1.10 | 0.99 | f | 2.11 | n | 5.23 | d | ||||||
1983 | 1.15 | 0.74 | 1.67 | b | 2.30 | f | 1.26 | 0.80 | 0.29 | 1.40 | a | 0.65 | 0.48 | 1.60 | b | 4.31 | a | 14.35 | a | |||||||
1984 | 0.16 | 0.54 | 0.86 | 0.41 | 0.83 | 0.79 | ----- | z | 0.11 | 0.23 | 0.94 | 1.78 | f | 0.18 | a | 5.05 | b | |||||||||
1985 | 0.13 | 0.70 | 0.69 | a | 0.18 | 0.47 | 0.00 | 0.71 | 0.00 | 1.17 | b | 0.28 | 1.04 | d | 0.98 | n | 5.37 | a | ||||||||
1986 | 0.24 | 2.42 | 1.27 | 1.80 | 0.56 | 0.07 | a | ----- | z | 0.05 | 1.22 | 0.06 | 0.33 | 0.27 | d | 8.29 | a | |||||||||
1987 | 1.00 | 0.79 | 0.54 | 0.68 | 2.24 | 0.68 | 0.13 | 0.06 | 0.00 | 0.71 | 0.94 | 0.79 | 8.56 | |||||||||||||
1988 | 1.21 | 0.01 | 0.16 | 0.81 | 0.13 | 0.94 | a | 0.01 | 0.11 | 0.54 | 0.00 | 2.28 | h | 1.02 | 4.94 | a | ||||||||||
1989 | 0.72 | a | 0.67 | 1.51 | 0.39 | 1.31 | 0.11 | b | 0.00 | 0.14 | 0.66 | 0.75 | 0.66 | 0.06 | 6.98 | |||||||||||
1990 | 0.30 | 0.64 | 0.10 | b | 1.22 | a | 1.11 | 0.00 | 0.06 | 0.74 | 0.12 | 0.15 | a | 0.15 | 0.43 | 5.02 | ||||||||||
1991 | 0.44 | a | 0.39 | 1.36 | 1.20 | 2.37 | 1.49 | b | 0.00 | 0.22 | 0.75 | 1.05 | 0.22 | 0.26 | a | 9.75 | ||||||||||
1992 | 0.03 | 0.76 | 0.40 | 0.18 | 0.00 | 0.47 | 0.49 | 0.00 | a | 0.00 | 0.69 | 0.47 | 1.44 | 4.93 | ||||||||||||
1993 | 2.10 | 0.90 | 1.30 | 0.45 | 0.36 | 1.27 | 0.19 | 0.11 | 0.15 | 0.92 | 0.09 | 0.37 | 8.21 | |||||||||||||
1994 | 0.13 | 1.39 | 0.36 | a | 0.76 | a | 1.42 | 0.08 | 0.00 | 0.00 | 0.17 | 0.00 | 1.46 | a | 2.05 | c | 7.82 | |||||||||
1995 | 1.87 | 0.00 | b | 1.14 | ----- | z | 1.00 | 1.40 | 0.51 | 0.00 | 0.04 | 0.00 | 0.43 | 4.47 | 10.86 | a | ||||||||||
1996 | 2.02 | a | 0.97 | 1.05 | 0.96 | 0.82 | 0.69 | 0.01 | 0.08 | b | 0.10 | 0.70 | a | 0.37 | 1.92 | 9.69 | ||||||||||
1997 | 2.36 | 0.13 | 0.59 | 1.07 | ----- | z | 2.59 | 0.60 | 0.02 | 0.65 | 0.38 | 0.58 | 0.65 | 9.62 | a | |||||||||||
1998 | 1.87 | 1.92 | 1.40 | a | 1.45 | 2.63 | c | ----- | z | 0.25 | 0.01 | 1.37 | 0.67 | 1.20 | 0.26 | b | 13.03 | a | ||||||||
1999 | 1.70 | 1.59 | a | 0.10 | 0.23 | a | 0.80 | 0.62 | b | 0.00 | 0.07 | 0.05 | 0.39 | 0.39 | 0.08 | 6.02 | ||||||||||
2000 | 3.00 | 2.43 | 0.73 | 0.99 | 0.40 | 0.10 | 0.03 | 0.00 | 0.17 | 2.13 | 0.23 | 0.67 | b | 10.88 | ||||||||||||
2001 | 0.69 | 0.60 | 0.37 | 0.44 | b | 0.46 | 0.01 | 0.82 | 0.12 | 0.24 | 0.10 | 2.25 | 1.66 | c | 7.76 | |||||||||||
2002 | 1.89 | 0.47 | 0.21 | c | 0.79 | 0.60 | a | 0.27 | b | 0.24 | 0.27 | a | ----- | z | 0.28 | a | 1.28 | 0.54 | b | 6.84 | a | |||||
2003 | 0.63 | 0.24 | 1.05 | 1.03 | d | ----- | z | 0.00 | 0.95 | 0.47 | 0.00 | 0.00 | ----- | z | 2.26 | a | 6.63 | b | ||||||||
2004 | ----- | z | 0.78 | b | 0.32 | 0.20 | 1.13 | b | 0.42 | 0.06 | ----- | z | 0.27 | 1.98 | a | 0.34 | b | 0.40 | c | 5.90 | b | |||||
2005 | 0.59 | d | 0.29 | a | 0.78 | 1.19 | a | 2.34 | 0.26 | 0.08 | 0.00 | 0.20 | ----- | z | 1.51 | b | 2.84 | x | 7.24 | b | ||||||
2006 | 0.66 | d | 0.90 | 0.66 | b | 2.75 | a | 1.14 | 0.01 | 0.00 | ----- | z | 0.00 | i | 0.22 | 1.11 | a | 0.57 | 8.02 | b | ||||||
2007 | 0.02 | ----- | z | 0.01 | a | 0.25 | 0.12 | 0.34 | 0.00 | 0.02 | 1.02 | 0.72 | 0.32 | 0.27 | b | 3.09 | a | |||||||||
2008 | 0.65 | y | 1.08 | 0.09 | a | 0.23 | 0.79 | 0.00 | 0.00 | 0.16 | a | ----- | z | 0.19 | 0.94 | 1.66 | 5.14 | b | ||||||||
2009 | 0.34 | g | 0.92 | a | 0.41 | a | 0.41 | b | 1.16 | d | 2.36 | a | 0.00 | ----- | z | 0.05 | 0.27 | 0.10 | c | 0.80 | g | 5.68 | c | |||
2010 | 1.39 | b | 0.63 | d | 0.58 | d | ----- | z | 1.11 | a | 0.32 | a | 0.22 | a | 0.14 | c | 0.17 | d | 1.88 | f | 0.46 | d | 2.49 | c | 7.51 | b |
2011 | 0.63 | a | 0.49 | b | 0.90 | a | 1.31 | 2.47 | b | ----- | z | ----- | z | 0.00 | a | 0.00 | a | 0.46 | b | 0.22 | d | ----- | z | 6.48 | c | |
2012 | 0.84 | a | 0.01 | d | 0.24 | b | 0.05 | a | ----- | z | 0.50 | 0.10 | 0.00 | a | 0.35 | a | 0.61 | a | 0.54 | a | 1.32 | a | 4.56 | a | ||
2013 | 0.41 | a | 0.05 | 0.00 | 0.06 | 0.82 | 0.00 | a | 0.99 | d | 0.32 | a | 0.81 | 0.66 | a | 0.03 | 0.00 | 4.15 | ||||||||
2014 | 0.42 | 0.83 | 1.36 | 0.71 | 0.28 | 0.15 | 1.16 | 0.13 | 1.51 | 0.12 | 0.55 | 3.48 | a | 10.70 | ||||||||||||
2015 | 0.55 | a | 0.85 | 0.11 | 0.64 | 2.11 | 0.00 | 1.17 | 0.04 | 0.00 | 2.30 | 0.45 | 2.69 | 10.91 | ||||||||||||
2016 | 2.39 | 0.13 | 1.01 | 0.41 | 1.21 | 0.11 | 0.00 | 0.00 | 0.07 | 0.97 | 0.21 | 2.31 | 8.82 | |||||||||||||
2017 | 3.79 | 1.72 | 0.90 | 1.90 | 0.80 | 0.92 | 0.22 | 0.22 | 0.00 | 0.32 | 0.87 | a | 0.08 | 11.74 | ||||||||||||
2018 | 0.37 | 0.42 | 1.49 | 0.79 | 1.70 | 0.29 | 0.10 | 0.00 | 0.00 | 0.80 | 1.43 | 1.76 | 9.15 | |||||||||||||
2019 | 1.61 | 2.94 | 0.87 | 1.54 | 1.90 | 0.55 | 0.12 | 0.05 | 1.14 | 0.15 | 0.44 | m | 1.85 | h | 10.87 | b | ||||||||||
2020 | 1.07 | m | 0.00 | 0.58 | a | 0.00 | 0.46 | 1.00 | e | 0.00 | f | 0.00 | j | 0.00 | a | 0.01 | a | 0.93 | s | 0.67 | f | 2.05 | e | |||
2021 | 0.20 | e | 0.10 | f | 0.00 | o | 0.05 | e | 0.65 | d | 0.22 | 0.00 | 0.10 | 0.27 | 2.48 | d | 0.30 | 1.35 | b | 5.62 | b | |||||
2022 | 0.20 | 0.00 | 0.00 | 0.35 | 0.00 | a | 0.00 | u | 0.00 | e | ----- | z | 0.00 | j | 0.00 | k | 0.00 | d | 0.68 | n | 0.55 | e | ||||
2023 | 0.25 | w | 0.00 | t | ----- | z | 0.00 | s | 0.35 | o | ----- | z | 0.00 | 0.84 | 1.15 | 1.17 | 0.41 | 0.77 | 4.34 | f | ||||||
2024 | 2.66 | 1.36 | 0.88 | 0.65 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.90 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.09 | 0.83 | 0.68 | 0.68 | 0.95 | 0.66 | 0.26 | 0.26 | 0.42 | 0.58 | 0.82 | 1.26 | 8.61 | |||||||||||||
S.D. | 0.90 | 0.67 | 0.46 | 0.58 | 0.77 | 0.72 | 0.34 | 0.50 | 0.46 | 0.58 | 0.70 | 1.11 | 2.16 | |||||||||||||
SKEW | 1.04 | 1.07 | 0.25 | 1.18 | 1.02 | 1.36 | 1.44 | 3.37 | 0.94 | 1.59 | 1.29 | 1.15 | -0.56 | |||||||||||||
MAX | 3.79 | 2.94 | 1.67 | 2.75 | 3.19 | 2.85 | 1.17 | 2.64 | 1.52 | 2.48 | 3.44 | 4.47 | 11.74 | |||||||||||||
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 | 4.15 | |||||||||||||
YRS | 56 | 60 | 60 | 56 | 57 | 59 | 59 | 55 | 56 | 57 | 53 | 51 | 25 |