YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1956 | ----- | z | ----- | z | ----- | z | 0.26 | y | 0.55 | 0.90 | 0.51 | a | 0.24 | 0.01 | 0.73 | 0.01 | 0.05 | a | 3.00 | d | ||||||
1957 | 1.25 | 0.01 | 0.67 | 1.38 | 2.56 | 1.64 | 0.55 | 2.10 | 0.00 | 2.14 | 2.76 | 0.38 | 15.44 | |||||||||||||
1958 | 0.25 | 0.35 | 2.00 | 0.00 | 0.73 | 0.52 | 0.41 | 0.48 | 0.73 | 0.00 | 0.32 | 0.13 | 5.92 | |||||||||||||
1959 | 0.15 | 0.96 | 0.49 | 0.41 | 0.27 | 0.82 | 0.54 | 1.65 | 1.50 | 0.82 | 0.00 | 0.85 | 8.46 | |||||||||||||
1960 | 0.76 | 0.82 | 0.11 | 0.45 | 0.06 | 0.17 | 0.36 | 0.22 | 0.70 | 1.50 | 1.15 | 0.06 | 6.36 | |||||||||||||
1961 | 0.00 | 0.03 | 0.89 | 0.40 | 0.07 | 0.06 | 0.27 | 1.10 | 1.69 | 1.47 | 0.96 | 0.63 | 7.57 | |||||||||||||
1962 | 1.91 | 1.38 | 0.35 | 0.16 | 0.41 | 0.28 | 0.46 | 0.20 | 1.11 | 1.01 | 0.31 | 0.09 | 7.67 | |||||||||||||
1963 | 0.41 | 0.28 | 0.16 | 1.02 | 0.11 | 0.40 | 0.15 | 1.09 | 0.55 | 0.33 | 0.00 | b | 0.36 | 4.86 | ||||||||||||
1964 | 0.00 | 0.15 | 0.30 | 0.99 | 1.99 | 0.57 | 0.33 | 0.54 | 0.00 | 0.00 | 1.41 | 1.45 | 7.73 | |||||||||||||
1965 | 0.17 | 0.12 | 0.36 | 0.66 | 2.49 | 2.84 | 1.32 | 1.17 | 1.66 | 0.55 | 1.28 | 1.05 | 13.67 | |||||||||||||
1966 | 0.00 | 0.49 | 0.05 | 0.22 | 1.76 | 0.29 | n | 0.76 | 0.87 | a | 0.64 | a | 0.80 | 0.32 | 1.37 | 7.28 | a | |||||||||
1967 | 0.60 | ----- | z | 0.31 | ----- | z | 1.76 | 1.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.12 | h | ||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | 0.49 | n | 0.82 | 0.24 | 0.19 | 0.12 | 0.21 | 0.12 | 0.45 | 2.15 | e | |||||||
1969 | 1.53 | 0.73 | 0.39 | 0.92 | 0.00 | 2.65 | 0.00 | 0.55 | 0.66 | 1.51 | 0.18 | 0.47 | 9.59 | |||||||||||||
1970 | 0.55 | 0.07 | 0.26 | 0.16 | 0.24 | 0.93 | 0.41 | 0.99 | 0.54 | 0.26 | 0.10 | 0.44 | 4.95 | |||||||||||||
1971 | 0.42 | 0.35 | 0.02 | 1.46 | 0.70 | 0.08 | 0.73 | 0.17 | 0.18 | 2.10 | 0.20 | 1.61 | 8.02 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.52 | 0.93 | 0.95 | 0.37 | 0.57 | 1.73 | 2.95 | 0.55 | 1.02 | 9.59 | |||||||||||||
1973 | 0.73 | 0.47 | 0.96 | 1.84 | 0.57 | 1.02 | 1.40 | 1.08 | 0.39 | 0.55 | 0.98 | 0.64 | 10.63 | |||||||||||||
1974 | 0.61 | 0.04 | 0.00 | 0.44 | 0.00 | 0.00 | 0.34 | 0.17 | 0.15 | 2.36 | 0.05 | 0.08 | 4.24 | |||||||||||||
1975 | 0.52 | 0.69 | 1.77 | 0.04 | 1.83 | 2.32 | 0.79 | 0.39 | 0.04 | 0.59 | 0.57 | 0.21 | 9.76 | |||||||||||||
1976 | 0.04 | 0.88 | 0.54 | 1.32 | 1.03 | 1.18 | 0.34 | 0.40 | 0.55 | 0.18 | 0.00 | 0.05 | 6.51 | |||||||||||||
1977 | 0.31 | 0.24 | 0.03 | 0.18 | 1.75 | 0.18 | 1.28 | 1.09 | 0.20 | 0.38 | 0.64 | 0.55 | 6.83 | |||||||||||||
1978 | 1.31 | 0.50 | 1.73 | 1.50 | 0.59 | 0.38 | 0.08 | 0.58 | 0.26 | 0.25 | 2.22 | 1.03 | 10.43 | |||||||||||||
1979 | 0.87 | 0.78 | 1.63 | 0.61 | 1.09 | 0.07 | 0.50 | 1.23 | 0.05 | 1.15 | 0.30 | 0.33 | 8.61 | |||||||||||||
1980 | 2.16 | 1.23 | 0.55 | 0.69 | 2.28 | 0.00 | 0.21 | 0.96 | 1.95 | 1.64 | 0.90 | 0.01 | 12.58 | |||||||||||||
1981 | 0.09 | 0.19 | 0.63 | 0.29 | 1.79 | 0.00 | 0.50 | 0.76 | 1.06 | 2.72 | 0.18 | 0.38 | 8.59 | |||||||||||||
1982 | 0.58 | 0.13 | a | 1.20 | 0.00 | 0.86 | v | ----- | z | 0.56 | d | 0.33 | 2.48 | 1.00 | 1.62 | 0.52 | 8.42 | b | ||||||||
1983 | 0.62 | 1.10 | 1.17 | 1.28 | 2.49 | 1.22 | 1.10 | 0.81 | 2.35 | 0.92 | 1.44 | c | 0.19 | d | 14.69 | |||||||||||
1984 | ----- | z | 0.62 | a | 0.60 | ----- | z | ----- | z | 0.86 | 0.95 | 1.60 | 1.39 | 1.21 | 0.05 | b | 0.86 | a | 8.14 | c | ||||||
1985 | 0.65 | ----- | z | 0.77 | 0.08 | 0.74 | 0.65 | 1.34 | ----- | z | 1.52 | k | 0.85 | f | 1.24 | 0.26 | 5.73 | d | ||||||||
1986 | 0.10 | ----- | z | 0.60 | 1.83 | 1.37 | 0.63 | 0.62 | q | 0.44 | 1.94 | 1.44 | 0.00 | 0.18 | a | 8.53 | b | |||||||||
1987 | 0.54 | c | 0.50 | d | 0.88 | 0.60 | 1.44 | 0.38 | 2.51 | e | 1.40 | 0.00 | f | 1.30 | 0.99 | a | 0.52 | 11.06 | a | |||||||
1988 | 0.69 | 0.00 | 0.67 | 1.38 | a | 0.63 | a | 0.10 | 0.07 | 0.49 | g | 1.14 | 0.09 | 0.63 | 0.55 | 5.95 | a | |||||||||
1989 | 0.15 | 0.95 | 0.47 | 0.00 | 0.22 | 0.21 | 0.60 | 1.33 | 0.87 | f | 1.07 | 0.18 | 0.00 | 5.18 | a | |||||||||||
1990 | 0.09 | c | 0.02 | g | 1.01 | 0.47 | 1.21 | 1.12 | 1.43 | 0.30 | 1.49 | 1.60 | 0.44 | 0.35 | 9.51 | a | ||||||||||
1991 | 0.03 | 0.18 | 0.61 | 0.68 | 0.59 | 0.63 | 0.23 | 0.83 | 1.19 | 0.51 | b | 0.39 | d | 0.18 | 6.05 | |||||||||||
1992 | 0.29 | 0.53 | 0.27 | 0.00 | 1.49 | 0.70 | 1.22 | 0.96 | 0.63 | 1.26 | 0.13 | 0.64 | 8.12 | |||||||||||||
1993 | 0.99 | 1.03 | 1.15 | c | 0.81 | 1.17 | 0.36 | 0.20 | 1.36 | 0.74 | 1.79 | k | 0.67 | 0.02 | 8.50 | a | ||||||||||
1994 | 0.08 | 0.45 | 0.05 | 0.88 | 0.49 | 0.20 | 0.35 | 0.97 | 0.67 | 3.82 | 0.75 | ----- | z | 8.71 | a | |||||||||||
1995 | 0.47 | a | 0.46 | 0.14 | 1.39 | 3.92 | 1.38 | 0.59 | 1.41 | 0.36 | 0.00 | 0.00 | 0.27 | 10.39 | ||||||||||||
1996 | 1.24 | 0.70 | 0.43 | 0.20 | 2.25 | 0.33 | 0.40 | 0.02 | 1.75 | 0.59 | 0.69 | 0.84 | 9.44 | |||||||||||||
1997 | 1.44 | 0.67 | 0.00 | 1.51 | 0.64 | 1.44 | 0.82 | 2.68 | 2.63 | 0.46 | 0.90 | 0.14 | 13.33 | |||||||||||||
1998 | 0.55 | 0.75 | 0.80 | 0.25 | 1.01 | 2.88 | 0.54 | 0.46 | 1.05 | 1.33 | 0.82 | 0.23 | 10.67 | |||||||||||||
1999 | 0.74 | 0.14 | 0.00 | 2.64 | 0.72 | 0.34 | 1.13 | 0.91 | 2.14 | 0.00 | 0.04 | 0.30 | 9.10 | |||||||||||||
2000 | 0.53 | 1.15 | 0.64 | 0.68 | 0.85 | 0.22 | 0.05 | b | 1.26 | 2.09 | 1.82 | 0.53 | 0.34 | 10.16 | ||||||||||||
2001 | 0.73 | 1.00 | 0.63 | 1.52 | 0.69 | 0.22 | 0.45 | 0.36 | 0.78 | 0.68 | a | 0.89 | 0.17 | 8.12 | ||||||||||||
2002 | ----- | z | 0.09 | 0.55 | 0.19 | 0.11 | 0.36 | 0.03 | 0.15 | e | 2.24 | 1.25 | 0.98 | 0.64 | 6.59 | a | ||||||||||
2003 | 0.12 | 1.12 | 0.69 | ----- | z | 0.78 | 1.39 | 0.00 | 0.74 | 0.15 | 0.34 | 1.17 | a | 1.20 | 7.70 | a | ||||||||||
2004 | 0.06 | 0.80 | 0.00 | 1.68 | 0.04 | 0.87 | 0.22 | 0.52 | 1.96 | 3.95 | a | 1.20 | 0.58 | 11.88 | ||||||||||||
2005 | 2.06 | 0.61 | 0.69 | 0.86 | 0.67 | 0.89 | 0.32 | 0.62 | 1.65 | 0.46 | a | 0.30 | 0.32 | 9.45 | ||||||||||||
2006 | 0.85 | 0.11 | 1.37 | 0.61 | 0.41 | 0.29 | 0.31 | 1.22 | 1.76 | 3.20 | 0.54 | 0.18 | 10.85 | |||||||||||||
2007 | 0.16 | a | 0.36 | 0.00 | 0.24 | 0.50 | 0.00 | 0.70 | 0.55 | 1.63 | a | 0.32 | 0.40 | 1.55 | 6.41 | |||||||||||
2008 | 0.47 | a | 1.20 | 0.64 | 0.20 | 0.76 | 0.63 | 0.00 | 0.49 | 1.05 | 0.97 | 0.38 | 1.17 | a | 7.96 | |||||||||||
2009 | 0.22 | 0.27 | 0.01 | 1.13 | b | 1.34 | 2.05 | a | 0.32 | 0.64 | ----- | z | 0.78 | a | 0.00 | 1.59 | a | 8.35 | a | |||||||
2010 | 0.57 | 0.07 | 0.18 | 1.07 | 0.86 | 0.74 | 1.29 | b | 1.62 | 0.00 | 1.74 | 0.45 | d | 2.89 | 11.48 | |||||||||||
2011 | ----- | z | 0.57 | w | ----- | z | 0.87 | x | 3.20 | v | ----- | z | 3.56 | t | ----- | z | 0.28 | 1.91 | 0.03 | 0.45 | 2.67 | h | ||||
2012 | 0.25 | 0.44 | 0.05 | 0.22 | 0.03 | 0.00 | 0.92 | 0.08 | a | 0.94 | a | 0.58 | 0.74 | d | 0.84 | 5.09 | ||||||||||
2013 | 0.39 | 0.23 | 0.55 | a | 1.85 | a | 0.25 | 0.15 | 0.71 | 0.50 | 2.59 | 1.57 | 0.28 | 0.55 | 9.62 | |||||||||||
2014 | 0.18 | 0.44 | 0.27 | 0.77 | 0.03 | 0.02 | 0.60 | 3.49 | 2.91 | 0.00 | 0.45 | 0.39 | 9.55 | |||||||||||||
2015 | 0.59 | 0.29 | 0.43 | 0.92 | 3.18 | 0.94 | 1.20 | 1.85 | 0.72 | 1.00 | 0.72 | 0.37 | 12.21 | |||||||||||||
2016 | 0.33 | 0.26 | a | 0.87 | 0.38 | f | 1.26 | g | 0.10 | a | 0.82 | 0.59 | 3.67 | 0.29 | 0.40 | 1.17 | c | 8.50 | b | |||||||
2017 | 2.51 | b | 1.30 | a | 1.46 | 0.20 | 0.03 | 0.04 | 1.41 | 1.00 | 1.67 | 0.06 | 0.04 | 0.08 | 9.80 | |||||||||||
2018 | 0.30 | 0.27 | 0.30 | 0.32 | 0.43 | 0.06 | 0.74 | 1.20 | 0.02 | a | 2.70 | 0.54 | 0.32 | 7.20 | ||||||||||||
2019 | 1.12 | 1.27 | 1.21 | 1.12 | 3.10 | 0.55 | 0.03 | c | 0.50 | 0.96 | 0.12 | 1.15 | 0.85 | 11.98 | ||||||||||||
2020 | 0.14 | 0.05 | 1.37 | 0.18 | 0.26 | 1.71 | d | 0.17 | d | 0.00 | 0.28 | 0.00 | 0.35 | 0.30 | 4.81 | |||||||||||
2021 | 0.32 | 0.43 | 0.86 | b | 0.79 | 0.04 | 0.52 | 0.52 | 1.15 | 0.68 | 2.35 | 0.10 | a | 0.94 | 8.70 | |||||||||||
2022 | 0.07 | 0.18 | 0.68 | 0.50 | 0.38 | 0.94 | 0.54 | 0.91 | 1.92 | 0.59 | 0.41 | 0.71 | 7.83 | |||||||||||||
2023 | 2.34 | 0.54 | 1.05 | 0.34 | 0.91 | 0.39 | 0.38 | 1.64 | 0.89 | a | 0.42 | 0.75 | 0.00 | 9.65 | ||||||||||||
2024 | 0.34 | 1.28 | 1.33 | 0.10 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.95 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.60 | 0.53 | 0.62 | 0.74 | 0.98 | 0.72 | 0.59 | 0.87 | 1.10 | 1.08 | 0.59 | 0.57 | 9.03 | |||||||||||||
S.D. | 0.60 | 0.40 | 0.50 | 0.59 | 0.89 | 0.70 | 0.47 | 0.63 | 0.86 | 0.94 | 0.54 | 0.51 | 2.60 | |||||||||||||
SKEW | 1.54 | 0.54 | 0.75 | 0.85 | 1.22 | 1.42 | 1.37 | 1.51 | 0.66 | 1.14 | 1.49 | 1.81 | 0.31 | |||||||||||||
MAX | 2.51 | 1.38 | 2.00 | 2.64 | 3.92 | 2.88 | 2.51 | 3.49 | 3.67 | 3.95 | 2.76 | 2.89 | 15.44 | |||||||||||||
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 | 4.24 | |||||||||||||
YRS | 64 | 62 | 66 | 61 | 63 | 65 | 65 | 64 | 63 | 65 | 67 | 66 | 49 |