YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.48 | l | 1.02 | 1.20 | 0.02 | 0.03 | 2.27 | h | ||||
1950 | 0.99 | 0.56 | 0.65 | 1.24 | 0.38 | 0.41 | a | 0.56 | 0.45 | 0.83 | 0.28 | 0.41 | 0.74 | 7.50 | ||||||||||||
1951 | 1.00 | 0.17 | 0.03 | 0.80 | 0.56 | 0.67 | 0.49 | 1.68 | 0.60 | 0.66 | 0.32 | 4.87 | 11.85 | |||||||||||||
1952 | 1.01 | 0.07 | 0.93 | 0.99 | 0.61 | 0.51 | 3.46 | 3.09 | 0.75 | 0.00 | 0.61 | 0.23 | 12.26 | |||||||||||||
1953 | 0.05 | 0.90 | 0.90 | 0.80 | 2.01 | 0.44 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.10 | f | ||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.00 | u | 0.49 | 0.49 | k | |
1955 | 0.31 | 2.07 | 0.91 | 0.21 | 1.13 | 0.02 | 3.26 | 3.37 | ----- | z | 0.20 | 0.45 | 0.14 | 12.07 | a | |||||||||||
1956 | 2.22 | 1.16 | 0.80 | ----- | z | 0.87 | ----- | z | ----- | z | ----- | z | ----- | z | 0.71 | 0.37 | 0.72 | 6.85 | e | |||||||
1957 | 1.81 | 0.19 | 0.15 | 1.63 | 3.34 | 0.23 | 1.32 | 1.63 | 0.00 | 0.26 | ----- | z | 0.19 | 10.75 | a | |||||||||||
1958 | 0.05 | 0.00 | 0.58 | 1.34 | 0.25 | ----- | z | ----- | z | ----- | z | ----- | z | 0.07 | 0.29 | 0.07 | 2.65 | d | ||||||||
1959 | 0.56 | 0.72 | 0.21 | 0.31 | 0.52 | 0.46 | 0.24 | 0.79 | 1.62 | 1.03 | 0.04 | 0.00 | f | 6.50 | a | |||||||||||
1960 | 0.41 | 0.77 | 0.26 | 0.13 | 0.65 | 1.14 | 0.82 | 0.10 | 0.76 | 0.89 | 0.09 | 0.71 | 6.73 | |||||||||||||
1961 | 0.02 | 0.29 | 0.80 | 0.87 | 0.70 | 0.17 | 0.75 | 1.91 | 2.43 | 2.10 | 0.65 | 0.37 | 11.06 | |||||||||||||
1962 | 1.58 | 0.77 | 0.15 | 1.11 | 0.40 | 0.02 | 0.03 | 0.40 | 0.41 | 0.67 | 0.21 | 0.45 | 6.20 | |||||||||||||
1963 | 0.59 | 0.40 | 0.55 | 0.14 | 0.26 | 1.22 | 0.71 | 2.17 | 0.98 | 0.92 | 0.16 | 0.39 | 8.49 | |||||||||||||
1964 | 0.09 | ----- | z | 0.54 | 0.76 | 0.53 | 0.41 | 0.57 | 1.61 | 0.33 | 0.10 | 1.38 | 1.81 | b | 8.13 | a | ||||||||||
1965 | 0.37 | 0.42 | 1.65 | 0.72 | 0.33 | 1.27 | 1.18 | 1.68 | 1.08 | 0.80 | 0.65 | 0.56 | 10.71 | |||||||||||||
1966 | 0.03 | 0.42 | 0.12 | 0.75 | 0.61 | 0.29 | 1.33 | 1.00 | 0.45 | 0.24 | 0.62 | 1.84 | 7.70 | |||||||||||||
1967 | 0.24 | 0.46 | 0.06 | ----- | z | 1.22 | 1.68 | 1.14 | 2.36 | 1.04 | 0.29 | 0.20 | 1.09 | e | 9.78 | a | ||||||||||
1968 | 0.06 | 0.53 | 0.38 | 0.36 | 0.30 | 0.20 | 2.85 | 2.33 | 0.64 | 0.36 | 0.15 | 0.23 | 8.39 | |||||||||||||
1969 | 1.16 | 0.12 | 0.03 | c | 0.20 | 2.64 | 2.11 | 1.62 | 1.07 | 1.06 | 2.27 | 0.05 | 0.84 | 13.17 | ||||||||||||
1970 | 0.03 | 0.01 | 0.83 | 0.40 | 0.03 | 0.84 | 1.68 | 2.22 | 3.02 | 0.66 | 0.34 | 0.32 | 10.38 | |||||||||||||
1971 | 0.22 | 0.72 | 0.46 | 0.54 | 0.30 | 0.48 | 1.34 | 1.67 | 0.95 | 0.94 | 0.39 | 0.82 | 8.83 | |||||||||||||
1972 | 0.43 | 0.19 | 0.48 | 0.44 | 0.57 | 0.81 | 0.41 | 1.07 | 0.97 | 0.35 | 0.48 | 0.59 | 6.79 | |||||||||||||
1973 | 0.01 | 0.03 | 1.10 | 0.46 | 0.98 | 0.69 | 2.01 | 1.06 | 0.26 | 0.11 | 0.12 | 0.58 | 7.41 | |||||||||||||
1974 | 0.93 | 0.04 | 0.62 | 0.12 | 0.01 | 0.48 | 1.24 | 0.83 | 0.46 | 1.13 | 0.27 | 0.37 | 6.50 | |||||||||||||
1975 | 0.37 | 0.32 | 1.52 | 0.27 | 0.80 | 0.36 | j | 0.46 | 0.96 | 0.22 | 0.24 | 0.70 | 0.18 | 6.04 | a | |||||||||||
1976 | 0.03 | 0.39 | ----- | z | 0.93 | 0.71 | 0.36 | 2.21 | 1.30 | 2.46 | 0.02 | 0.35 | 0.00 | 8.76 | a | |||||||||||
1977 | 0.00 | 0.89 | 0.20 | ----- | z | ----- | z | 0.34 | 2.19 | 1.29 | 0.53 | 0.46 | 0.42 | 1.74 | 8.06 | b | ||||||||||
1978 | 0.83 | 0.26 | 0.10 | a | 0.76 | 1.10 | 0.45 | 0.81 | 0.35 | 0.22 | 0.40 | b | 0.59 | 0.73 | 6.60 | |||||||||||
1979 | 0.86 | 0.22 | 0.84 | 0.09 | 1.95 | 1.75 | 0.51 | 1.22 | 0.41 | 0.73 | 0.59 | b | 0.10 | 9.27 | ||||||||||||
1980 | 1.27 | 0.91 | 0.59 | 1.22 | 1.64 | 0.03 | 0.72 | 0.67 | 0.81 | 0.54 | 0.20 | 0.13 | 8.73 | |||||||||||||
1981 | 0.18 | 0.10 | 1.15 | 0.23 | 2.04 | 0.20 | a | 2.04 | c | 1.48 | a | 1.20 | 0.79 | a | 0.17 | 0.90 | 10.48 | |||||||||
1982 | 0.87 | k | 0.06 | 0.51 | b | 0.37 | a | 1.23 | 0.77 | 1.38 | 1.55 | 1.78 | 0.67 | 0.19 | a | 0.12 | a | 8.63 | a | |||||||
1983 | 0.13 | 0.20 | 0.84 | b | 0.86 | b | 1.80 | c | 1.08 | 1.67 | 2.75 | 0.26 | 0.40 | e | 1.25 | c | 1.21 | g | 11.24 | a | ||||||
1984 | 0.10 | b | 0.31 | d | 0.75 | c | 0.68 | 0.88 | e | 1.82 | 2.24 | 3.27 | b | 0.69 | e | 1.99 | e | 0.34 | 0.48 | d | 13.55 | |||||
1985 | 0.48 | b | 0.32 | 1.23 | 1.12 | b | 0.96 | 0.52 | 2.11 | g | 0.18 | b | 1.86 | 1.42 | 0.52 | 0.38 | a | 8.99 | a | |||||||
1986 | 0.14 | 1.07 | 0.36 | a | 0.73 | 0.23 | 0.96 | 2.17 | a | 2.72 | d | 1.90 | c | 0.48 | 0.82 | a | 0.46 | b | 12.04 | |||||||
1987 | 0.39 | c | 0.51 | b | 0.97 | d | 0.69 | a | 0.89 | d | 1.10 | 1.80 | c | 1.54 | d | 0.46 | a | 0.31 | a | 0.58 | c | 0.31 | d | 9.55 | ||
1988 | 0.24 | d | 0.21 | a | 0.37 | a | 0.57 | a | 0.63 | 3.20 | 0.35 | 1.48 | d | 0.93 | b | 0.30 | b | 0.77 | f | 0.56 | b | 8.84 | a | |||
1989 | 0.40 | a | 1.23 | e | 0.43 | b | 0.61 | e | 0.81 | 0.56 | 2.50 | b | 0.99 | b | 1.25 | a | 0.48 | 0.47 | 0.38 | c | 10.11 | |||||
1990 | 0.24 | b | 0.22 | 0.53 | 2.46 | c | 0.44 | 0.41 | 1.41 | g | 0.96 | c | 1.11 | g | 1.15 | e | 0.39 | a | 0.28 | c | 7.08 | b | ||||
1991 | 0.08 | a | 0.17 | c | 1.09 | d | 0.60 | c | 0.13 | 1.22 | 2.08 | c | 1.47 | d | 0.35 | c | 0.71 | b | 0.52 | e | 0.20 | 8.62 | ||||
1992 | 0.03 | 0.19 | c | 0.73 | b | 0.39 | a | 0.99 | 1.11 | 2.05 | b | 2.46 | e | 0.26 | c | 0.65 | 1.02 | 0.28 | 10.16 | |||||||
1993 | 0.27 | 0.88 | 1.13 | c | 0.42 | 0.42 | 0.45 | 0.79 | 1.32 | 1.19 | d | 0.50 | 0.69 | 0.10 | b | 8.16 | ||||||||||
1994 | 0.18 | 0.67 | 0.40 | 1.21 | c | 1.40 | d | 0.31 | 0.09 | 1.90 | 1.05 | 0.75 | d | 0.77 | 0.28 | 9.01 | ||||||||||
1995 | 0.23 | d | 1.68 | a | 2.21 | c | 1.54 | c | 2.99 | d | 0.71 | a | 0.97 | 2.32 | 0.85 | a | 0.75 | a | 0.72 | c | 0.37 | 15.34 | ||||
1996 | 1.65 | b | 1.91 | e | 0.75 | e | 0.95 | e | 0.83 | 0.97 | 0.84 | a | 1.25 | d | 0.65 | 0.79 | 0.43 | 0.85 | j | 11.02 | a | |||||
1997 | 0.61 | 0.44 | b | 0.39 | 1.13 | 1.51 | 0.73 | 0.59 | b | 1.51 | d | 0.75 | c | 0.60 | b | 0.76 | 0.09 | 9.11 | ||||||||
1998 | 0.24 | 0.41 | 1.10 | 1.36 | 0.06 | 0.80 | 3.13 | 1.16 | 0.47 | a | 0.98 | d | 0.42 | b | 0.08 | 10.21 | ||||||||||
1999 | 0.69 | c | 0.21 | 0.38 | 1.99 | c | 1.41 | b | 1.06 | 1.12 | e | 2.01 | c | 1.39 | c | 0.57 | 0.17 | b | 0.25 | b | 11.25 | |||||
2000 | 0.96 | b | 0.57 | e | 1.03 | e | 0.42 | 0.77 | 1.07 | a | 2.80 | 1.96 | i | 1.36 | 0.53 | 0.20 | 0.57 | 10.28 | a | |||||||
2001 | 0.00 | 0.66 | d | 1.34 | 1.06 | f | 1.15 | b | 0.45 | 2.69 | 2.11 | c | 0.23 | f | 0.12 | 0.26 | 0.22 | b | 9.00 | b | ||||||
2002 | 0.10 | 0.28 | c | 0.61 | 0.11 | 0.39 | 0.29 | 1.23 | i | 0.76 | g | 1.23 | g | 0.70 | 0.94 | b | 0.06 | 3.48 | c | |||||||
2003 | 0.06 | 0.42 | 1.48 | b | 0.51 | 0.43 | b | 1.67 | 1.41 | b | 2.19 | g | 1.92 | b | 0.18 | b | 0.88 | 0.10 | e | 9.06 | a | |||||
2004 | 0.25 | c | 0.48 | 0.28 | 0.83 | 0.24 | 0.96 | 2.55 | n | 0.96 | d | 0.94 | g | 0.72 | b | 0.27 | e | 0.12 | 5.11 | b | ||||||
2005 | 0.93 | d | 0.15 | 0.07 | f | 0.00 | h | 0.41 | b | 1.36 | 1.20 | d | 1.67 | h | 1.43 | f | 3.67 | 0.03 | q | 0.52 | 8.24 | e | ||||
2006 | 0.31 | n | 0.04 | 0.34 | 0.18 | 0.76 | 0.41 | 3.05 | 2.72 | ----- | z | 0.90 | 0.70 | 0.28 | 9.38 | b | ||||||||||
2007 | 0.48 | 0.28 | m | 0.52 | 1.12 | 0.72 | 0.62 | 0.82 | 1.84 | 1.03 | 0.80 | 0.03 | 1.55 | 9.53 | a | |||||||||||
2008 | 1.01 | b | 1.22 | 1.01 | c | 1.06 | c | 0.64 | 0.16 | 1.06 | 1.23 | 0.56 | 0.43 | 0.18 | 1.12 | 9.68 | ||||||||||
2009 | 0.34 | 0.40 | 0.34 | 0.45 | 1.54 | 1.42 | 1.03 | 0.61 | 1.45 | 0.85 | b | 0.23 | 0.61 | b | 9.27 | |||||||||||
2010 | 0.07 | 0.65 | 0.74 | 0.41 | 0.57 | 1.15 | 1.05 | 2.24 | 0.40 | 0.81 | i | 0.31 | 0.51 | b | 8.10 | a | ||||||||||
2011 | 0.05 | m | 0.28 | h | 0.33 | g | 0.55 | j | 0.83 | b | 0.58 | 1.68 | 1.95 | e | 0.73 | s | ----- | z | ----- | z | ----- | z | 5.04 | h | ||
2012 | 0.08 | y | 0.45 | l | 0.03 | s | 0.16 | d | 0.90 | 0.05 | p | 1.66 | i | 2.31 | e | 0.79 | n | 0.08 | k | 0.04 | c | 0.18 | g | 3.41 | h | |
2013 | 0.26 | 0.42 | d | 0.72 | k | 1.27 | 1.69 | 0.28 | 2.71 | d | 1.50 | e | 2.60 | h | 0.18 | 0.59 | k | 0.26 | 8.57 | c | ||||||
2014 | 1.80 | 0.82 | b | 0.59 | 0.58 | 0.97 | 0.24 | 2.40 | b | 1.27 | j | 1.77 | e | 0.47 | c | 1.01 | i | 0.82 | c | 10.46 | b | |||||
2015 | 0.02 | d | 0.43 | e | 0.32 | a | 1.49 | 1.64 | 1.06 | 1.05 | S | 0.65 | j | 0.64 | 0.58 | c | 0.24 | d | 0.86 | e | 8.33 | a | ||||
2016 | 0.18 | g | 0.63 | c | 0.48 | b | 1.49 | f | 0.73 | e | 0.73 | 0.66 | b | 2.22 | d | 0.36 | S | 0.65 | e | 0.20 | c | 1.29 | h | 6.66 | c | |
2017 | 1.22 | i | 0.40 | c | 0.10 | S | 0.57 | d | 2.08 | 0.12 | 2.59 | 1.02 | c | 1.52 | 1.32 | e | 1.02 | d | 0.65 | e | 11.39 | a | ||||
2018 | 0.68 | g | 0.54 | j | 0.18 | d | 1.61 | f | 0.28 | 0.39 | 1.92 | c | 0.84 | g | 1.03 | b | 1.42 | 0.86 | e | 0.06 | 6.14 | d | ||||
2019 | 0.55 | e | 0.70 | e | 1.90 | h | 1.79 | a | 1.01 | 0.40 | 0.71 | 1.05 | 1.01 | 1.29 | 0.50 | b | 0.78 | j | 9.01 | b | ||||||
2020 | 0.26 | g | 0.44 | g | 0.93 | a | 0.91 | b | 0.76 | 0.94 | 1.43 | 0.20 | d | 1.20 | c | 0.40 | 1.32 | h | 0.64 | S | 6.77 | d | ||||
2021 | 0.13 | c | 0.67 | c | 0.96 | e | 0.42 | S | 1.05 | b | 1.01 | 2.42 | c | 0.80 | e | 0.62 | 0.51 | m | 0.15 | e | 0.21 | i | 8.23 | b | ||
2022 | 1.12 | b | 1.28 | 0.67 | 0.47 | 0.67 | 0.86 | 4.58 | a | 3.81 | 0.95 | 0.76 | 0.62 | 0.78 | n | 15.79 | a | |||||||||
2023 | 0.28 | d | 0.58 | b | 0.77 | S | 0.86 | i | 0.84 | d | 0.89 | d | 0.20 | f | 1.79 | j | 0.63 | j | 1.49 | l | 0.24 | i | 0.43 | 3.02 | g | |
2024 | 0.85 | e | 0.93 | g | 0.86 | n | 0.25 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.85 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.50 | 0.53 | 0.66 | 0.75 | 0.92 | 0.76 | 1.52 | 1.57 | 0.96 | 0.72 | 0.45 | 0.56 | 9.56 | |||||||||||||
S.D. | 0.52 | 0.44 | 0.43 | 0.50 | 0.67 | 0.56 | 0.95 | 0.82 | 0.61 | 0.59 | 0.30 | 0.69 | 2.17 | |||||||||||||
SKEW | 1.35 | 1.48 | 0.94 | 1.02 | 1.44 | 1.58 | 0.77 | 0.49 | 1.13 | 2.41 | 0.87 | 4.15 | 0.58 | |||||||||||||
MAX | 2.22 | 2.07 | 2.21 | 2.46 | 3.34 | 3.20 | 4.58 | 3.81 | 3.02 | 3.67 | 1.38 | 4.87 | 15.34 | |||||||||||||
MIN | 0.00 | 0.00 | 0.03 | 0.09 | 0.01 | 0.02 | 0.03 | 0.10 | 0.00 | 0.00 | 0.02 | 0.00 | 6.20 | |||||||||||||
YRS | 66 | 67 | 66 | 64 | 72 | 69 | 64 | 62 | 60 | 68 | 65 | 64 | 34 |