YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1952 | ----- | z | ----- | z | ----- | z | 0.75 | 0.68 | 1.78 | 1.74 | 0.68 | 0.44 | 0.21 | 1.74 | 0.60 | 8.62 | c | |||||||||
1953 | 0.07 | 0.53 | 0.18 | 2.91 | 5.09 | 6.22 | 1.06 | 2.77 | 0.70 | 0.58 | 1.07 | 0.93 | 22.11 | |||||||||||||
1954 | 0.56 | 0.00 | 0.74 | 1.87 | 1.65 | 2.99 | 6.43 | 1.57 | 3.01 | 0.79 | 0.00 | a | 0.30 | 19.91 | ||||||||||||
1955 | 0.74 | 0.91 | 0.29 | 1.04 | 4.54 | 3.41 | 9.40 | 1.67 | 1.25 | 0.12 | 0.23 | 0.50 | 24.10 | |||||||||||||
1956 | 0.62 | 0.26 | 1.03 | 1.56 | 3.20 | 2.09 | 2.14 | 2.99 | 1.27 | 2.02 | 1.33 | 0.20 | 18.71 | |||||||||||||
1957 | 0.42 | j | 0.24 | 0.13 | 2.97 | 3.00 | 4.41 | 4.91 | 4.26 | 3.56 | 1.09 | 0.74 | 0.26 | 25.57 | a | |||||||||||
1958 | 0.16 | 1.08 | 0.05 | 2.80 | 2.27 | 5.10 | 3.15 | 3.12 | 0.85 | 0.83 | 1.52 | 0.00 | 20.93 | |||||||||||||
1959 | 0.04 | ----- | z | 0.08 | 0.49 | 2.42 | 3.79 | 3.10 | 4.28 | 1.42 | 2.17 | 0.35 | 0.04 | 18.18 | a | |||||||||||
1960 | 0.67 | 0.14 | 0.10 | 2.98 | 2.71 | 4.22 | 1.25 | 3.17 | 0.83 | 1.19 | 0.53 | 1.15 | 18.94 | |||||||||||||
1961 | 0.00 | 0.06 | 0.55 | 2.24 | 2.15 | 1.13 | 1.66 | 2.48 | 4.84 | 3.74 | 0.00 | 0.14 | r | 18.85 | a | |||||||||||
1962 | 0.59 | a | 1.08 | 0.54 | 0.97 | 5.80 | 3.36 | 13.01 | 4.97 | 4.29 | 0.24 | 0.44 | 0.00 | 35.29 | ||||||||||||
1963 | 0.00 | 0.18 | 0.38 | 1.83 | t | 2.30 | 4.51 | 1.21 | 4.36 | 0.91 | 0.31 | 0.04 | 0.07 | 14.27 | a | |||||||||||
1964 | 0.23 | 0.14 | 0.70 | 3.44 | 1.19 | 6.89 | 2.42 | 3.75 | 2.07 | 0.25 | 0.42 | 0.80 | 22.30 | |||||||||||||
1965 | 0.07 | 0.27 | 0.50 | 4.16 | 3.20 | 3.40 | 3.67 | 3.00 | 4.10 | 0.59 | 0.67 | 0.83 | c | 24.46 | ||||||||||||
1966 | 0.10 | 0.19 | 1.48 | 1.44 | 1.21 | 3.24 | 1.10 | 5.25 | 0.65 | 1.02 | 0.13 | 0.33 | 16.14 | |||||||||||||
1967 | 0.42 | b | 0.51 | 0.23 | 3.53 | 1.89 | 1.78 | 2.38 | 1.15 | 2.24 | 1.62 | ----- | z | ----- | z | 15.75 | b | |||||||||
1968 | ----- | z | 0.00 | 0.68 | 3.05 | 2.68 | 7.69 | 2.84 | 2.39 | 2.12 | ----- | z | 0.33 | 0.42 | 22.20 | b | ||||||||||
1969 | 0.66 | 0.55 | 0.55 | 1.68 | 1.91 | 4.33 | 3.53 | 0.44 | 1.08 | 1.41 | 0.00 | 0.92 | 17.06 | |||||||||||||
1970 | 0.05 | 0.28 | 2.15 | 2.75 | 7.46 | 3.52 | 0.77 | 0.21 | 5.32 | 1.08 | 1.13 | 0.08 | 24.80 | |||||||||||||
1971 | 0.83 | 0.36 | 0.00 | 1.25 | 3.00 | 5.61 | 2.00 | 2.28 | 1.72 | 5.17 | ----- | z | ----- | z | 22.22 | b | ||||||||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1973 | ----- | z | ----- | z | ----- | z | 0.61 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.32 | 1.15 | 1.20 | 4.28 | h | ||||
1974 | 0.25 | 0.85 | 0.37 | 2.94 | 4.44 | 0.77 | 2.09 | 5.11 | 0.22 | 1.20 | 1.16 | 0.02 | 19.42 | |||||||||||||
1975 | 1.18 | 0.42 | 1.05 | 3.89 | 1.80 | 14.25 | 5.35 | 1.33 | 1.34 | 0.98 | 0.54 | 0.20 | 32.33 | |||||||||||||
1976 | 1.10 | 0.40 | 0.80 | 2.29 | 0.29 | 2.71 | 0.35 | 0.39 | 0.47 | 0.33 | 0.22 | 0.09 | 9.44 | |||||||||||||
1977 | 0.42 | 0.68 | 2.25 | 1.01 | 2.91 | 2.14 | 4.27 | 2.33 | 4.12 | 1.46 | 1.16 | b | 0.51 | 23.26 | ||||||||||||
1978 | 0.25 | 0.11 | 0.35 | 1.61 | 3.04 | ----- | z | 3.25 | 2.24 | 2.67 | 0.31 | a | 1.03 | 0.57 | 15.43 | a | ||||||||||
1979 | 0.83 | 1.50 | 1.34 | 2.66 | 2.10 | 2.02 | 1.93 | 2.06 | 0.54 | 1.22 | 0.32 | 0.26 | 16.78 | |||||||||||||
1980 | 1.35 | 0.32 | 0.57 | 0.24 | 0.96 | ----- | z | 2.73 | 4.52 | 0.61 | 1.28 | 0.09 | 0.16 | 12.83 | a | |||||||||||
1981 | 0.28 | 0.33 | 0.19 | 0.91 | 2.41 | 3.91 | 7.51 | 2.42 | 0.43 | 2.27 | 0.56 | 0.81 | 22.03 | |||||||||||||
1982 | 1.17 | a | 0.35 | 1.31 | 0.67 | 2.58 | 1.40 | 1.17 | 0.91 | 1.06 | a | 5.36 | 0.85 | 0.16 | 16.99 | |||||||||||
1983 | 0.14 | 0.09 | 2.32 | 0.30 | 1.86 | 2.35 | 4.00 | 2.14 | 2.01 | 2.34 | 0.40 | 0.20 | 18.15 | |||||||||||||
1984 | 0.85 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.09 | 0.42 | 1.36 | i | |||
1985 | 0.05 | 0.03 | 1.41 | 0.19 | 5.03 | 1.70 | 1.79 | 2.78 | 2.36 | 1.12 | 1.14 | 0.20 | a | 17.80 | ||||||||||||
1986 | 0.51 | 0.08 | 0.07 | 4.32 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.66 | i | |||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.43 | 4.42 | 1.46 | 1.00 | 0.20 | 0.02 | f | ----- | z | 12.51 | g | |||||
1994 | 1.61 | 0.00 | k | 0.00 | c | 1.92 | a | 0.90 | 1.49 | 7.30 | 1.95 | 2.05 | 4.73 | 0.37 | d | 0.30 | 22.62 | a | ||||||||
1995 | 0.84 | 0.44 | 3.36 | 0.69 | a | 2.82 | 1.95 | 8.22 | 1.97 | 1.82 | 2.92 | 0.25 | a | 0.53 | 25.81 | |||||||||||
1996 | 0.63 | 0.55 | 1.96 | 0.04 | 2.43 | 2.61 | 1.79 | 1.45 | 2.94 | 2.26 | 1.45 | 1.25 | 19.36 | |||||||||||||
1997 | ----- | z | 0.00 | f | 0.00 | e | 0.97 | a | 2.31 | 1.88 | 3.69 | 1.38 | 2.74 | 2.82 | 0.02 | e | 0.00 | d | 15.81 | b | ||||||
1998 | 0.00 | l | 0.84 | b | 0.24 | h | 0.99 | 6.39 | 5.40 | 2.30 | 2.06 | 1.73 | 5.23 | 0.11 | c | 0.00 | e | 25.05 | b | |||||||
1999 | 0.00 | m | 0.04 | g | 0.95 | e | 0.95 | 4.75 | 3.04 | ----- | z | 2.77 | 7.32 | 0.78 | 0.04 | 0.03 | a | 20.63 | c | |||||||
2000 | 0.00 | g | 0.74 | f | 1.49 | c | 1.88 | b | ----- | z | 4.04 | 2.15 | 1.83 | 3.24 | 0.94 | 1.64 | j | 0.00 | j | 15.57 | e | |||||
2001 | 0.00 | d | 0.00 | h | 0.25 | b | 2.14 | b | 3.61 | 3.49 | ----- | z | 2.75 | 2.46 | 1.44 | ----- | z | 0.00 | d | 16.14 | c | |||||
2002 | 0.00 | e | 0.00 | b | 0.03 | g | 1.92 | c | 1.42 | 2.53 | 5.71 | 1.39 | 1.25 | 1.65 | a | 0.08 | a | 0.00 | g | 15.95 | b | |||||
2003 | 0.03 | g | ----- | z | 0.03 | f | 1.28 | 5.95 | 6.50 | 1.50 | 1.52 | 1.71 | 1.14 | 0.00 | c | 0.26 | h | 19.60 | d | |||||||
2004 | 0.00 | g | 0.32 | e | 1.00 | e | 0.42 | 4.73 | 1.67 | 3.12 | 1.58 | 4.14 | 3.67 | 0.05 | b | 0.29 | g | 20.70 | b | |||||||
2005 | 0.00 | h | 0.28 | d | 0.00 | b | 0.58 | 2.53 | 7.99 | 1.15 | 4.69 | 1.32 | 1.57 | 1.08 | c | 0.13 | g | 21.19 | b | |||||||
2006 | 0.08 | f | 0.00 | h | 1.06 | c | 1.85 | 2.79 | 1.09 | 1.19 | 3.34 | 3.20 | 1.65 | 0.13 | 0.53 | 16.83 | b | |||||||||
2007 | 0.12 | a | ----- | z | 2.86 | 2.21 | c | 6.30 | 7.63 | 2.05 | 2.56 | 3.18 | 1.82 | 0.03 | c | ----- | z | 28.76 | b | |||||||
2008 | 0.00 | d | 0.00 | i | ----- | z | 0.52 | b | 3.03 | 5.76 | 3.51 | 1.34 | 5.12 | 4.47 | 0.85 | ----- | z | 24.60 | c | |||||||
2009 | 0.00 | f | 1.10 | 0.97 | d | 1.15 | 1.62 | 3.16 | 2.32 | 3.22 | 3.23 | 4.32 | b | 0.50 | 0.00 | l | 21.59 | b | ||||||||
2010 | 0.18 | f | 0.00 | k | 1.12 | 1.95 | 2.85 | 4.62 | 4.69 | 4.89 | 6.23 | 1.51 | 0.00 | f | 0.00 | j | 27.86 | d | ||||||||
2011 | ----- | z | 0.00 | y | ----- | z | 2.06 | p | 3.32 | s | 3.87 | t | 4.87 | u | 1.94 | v | ----- | z | 1.38 | r | 0.13 | y | ----- | z | 0.00 | l |
2012 | 0.02 | y | ----- | z | 0.60 | y | 3.54 | u | 1.12 | u | 2.55 | v | 6.24 | v | 1.24 | u | 0.27 | 1.73 | a | 0.31 | c | 0.05 | b | 2.36 | h | |
2013 | 0.00 | d | 0.00 | f | 0.00 | e | 0.39 | e | 3.22 | 4.63 | 1.27 | 0.65 | 3.98 | 3.63 | 0.46 | ----- | z | 18.23 | b | |||||||
2014 | ----- | z | 0.00 | f | 0.24 | a | 2.88 | b | 2.63 | 5.42 | 0.91 | 6.55 | 2.00 | 0.50 | 0.06 | e | 0.07 | b | 21.26 | b | ||||||
2015 | 0.00 | e | 0.00 | g | 0.35 | b | 0.43 | 5.73 | 4.49 | 1.38 | 2.10 | 0.71 | 1.26 | 1.06 | a | 0.00 | f | 17.51 | b | |||||||
2016 | 0.00 | c | 0.10 | g | 1.12 | e | 2.33 | 3.36 | 2.06 | 3.50 | 2.99 | 2.83 | 2.50 | 1.60 | 1.22 | f | 22.29 | b | ||||||||
2017 | 0.00 | e | 0.00 | d | 0.09 | b | 1.19 | a | 1.07 | 3.44 | 1.97 | 2.92 | 2.92 | 0.51 | 0.00 | e | 0.17 | f | 14.11 | a | ||||||
2018 | 0.00 | e | ----- | z | ----- | z | ----- | z | 1.17 | u | 5.62 | s | 4.71 | r | ----- | z | 1.84 | w | 2.05 | w | ----- | z | ----- | z | 0.00 | k |
2019 | 0.03 | f | 0.00 | m | 0.00 | e | 1.07 | b | 2.97 | 4.53 | 3.35 | a | 2.30 | 5.16 | 2.65 | b | 0.15 | c | ----- | z | 22.18 | c | ||||
2020 | 0.00 | f | 0.00 | c | 0.02 | 0.65 | c | 1.68 | 4.58 | 6.40 | 5.83 | 0.69 | 0.20 | d | 0.04 | b | 0.00 | f | 20.09 | b | ||||||
2021 | 0.06 | f | 0.00 | a | 0.11 | c | 1.95 | 0.50 | 2.62 | 2.27 | 2.58 | 2.04 | 7.89 | 0.26 | b | 0.00 | i | 20.22 | b | |||||||
2022 | 0.00 | f | 0.00 | c | 0.02 | a | 6.00 | a | 3.59 | 1.28 | 2.45 | 2.93 | 0.67 | 0.18 | 0.30 | 1.82 | d | 19.24 | a | |||||||
2023 | 0.34 | 0.49 | 2.04 | 1.84 | 3.16 | 3.90 | 2.25 | 1.79 | 1.46 | 0.79 | 0.23 | 2.21 | 20.50 | |||||||||||||
2024 | 0.12 | 0.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.83 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.41 | 0.39 | 0.77 | 1.71 | 2.95 | 3.82 | 3.21 | 2.61 | 2.27 | 1.81 | 0.51 | 0.45 | 21.11 | |||||||||||||
S.D. | 0.43 | 0.36 | 0.80 | 1.18 | 1.59 | 2.27 | 2.38 | 1.41 | 1.61 | 1.60 | 0.49 | 0.50 | 5.28 | |||||||||||||
SKEW | 0.97 | 1.10 | 1.29 | 1.04 | 0.82 | 1.88 | 1.86 | 0.70 | 0.98 | 1.56 | 0.83 | 1.65 | 0.74 | |||||||||||||
MAX | 1.61 | 1.50 | 3.36 | 6.00 | 7.46 | 14.25 | 13.01 | 6.55 | 7.32 | 7.89 | 1.74 | 2.21 | 35.29 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.04 | 0.29 | 0.77 | 0.35 | 0.21 | 0.22 | 0.12 | 0.00 | 0.00 | 9.44 | |||||||||||||
YRS | 44 | 43 | 54 | 58 | 57 | 57 | 57 | 59 | 60 | 60 | 56 | 42 | 24 |