YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | 0.65 | l | 0.36 | 0.69 | 0.30 | 0.11 | 0.00 | 2.25 | 3.59 | 1.65 | 1.54 | 0.46 | 0.50 | 11.45 | a | |||||||||||
1962 | 0.58 | 0.30 | 0.34 | a | 0.12 | 0.04 | 0.13 | 0.57 | 0.03 | 1.73 | 0.83 | 1.11 | 0.26 | 6.04 | ||||||||||||
1963 | 0.45 | 0.67 | 0.29 | 0.13 | 0.09 | 0.07 | 0.63 | 1.72 | 1.09 | 1.28 | 0.93 | 0.00 | 7.35 | |||||||||||||
1964 | 0.12 | 0.78 | 0.51 | 0.52 | 0.53 | 0.05 | 1.46 | 1.82 | 1.81 | 0.00 | 0.65 | 0.54 | 8.79 | |||||||||||||
1965 | 0.47 | 0.46 | 0.45 | 0.71 | 0.23 | 2.33 | 1.18 | 0.97 | 1.20 | 0.40 | 0.45 | 1.38 | 10.23 | |||||||||||||
1966 | 0.10 | 0.08 | 0.04 | 0.02 | 0.31 | 2.19 | 1.25 | 1.48 | 1.62 | 0.02 | 0.17 | 0.70 | 7.98 | |||||||||||||
1967 | 0.06 | 0.03 | 0.00 | 0.00 | 0.32 | 0.61 | 0.74 | 3.43 | 1.60 | 0.30 | 0.06 | 1.79 | 8.94 | |||||||||||||
1968 | 0.01 | 1.23 | 1.19 | 0.43 | 0.35 | 0.23 | 1.89 | 1.80 | 0.00 | 0.44 | 0.68 | 0.62 | 8.87 | |||||||||||||
1969 | 0.34 | 0.43 | 0.24 | 0.58 | 1.60 | 0.81 | 1.73 | 2.77 | 0.33 | 3.03 | 0.18 | 0.30 | 12.34 | |||||||||||||
1970 | 0.09 | 0.11 | 1.30 | 0.25 | 0.62 | 0.60 | 3.32 | 0.99 | 0.32 | 0.48 | 0.11 | 0.09 | 8.28 | |||||||||||||
1971 | 0.47 | 1.21 | 0.21 | 0.63 | 0.04 | 0.00 | 0.68 | 1.44 | 2.75 | 0.91 | 0.36 | 0.60 | 9.30 | |||||||||||||
1972 | 0.22 | 0.00 | 0.04 | 0.00 | 0.40 | 0.40 | 0.42 | 4.64 | 2.79 | 3.10 | 0.99 | 1.09 | 14.09 | |||||||||||||
1973 | ----- | z | 0.22 | 1.77 | 0.80 | 2.07 | 0.34 | 1.87 | 1.59 | 0.78 | 0.23 | 0.37 | 0.10 | 10.14 | a | |||||||||||
1974 | 1.88 | 0.33 | 0.45 | 0.16 | 0.02 | 0.10 | 1.19 | 1.70 | 0.90 | 3.60 | 0.17 | 0.43 | 10.93 | |||||||||||||
1975 | 0.44 | 1.35 | 0.95 | 0.57 | 0.09 | 0.13 | 2.24 | 1.23 | 2.17 | 0.00 | 0.45 | 0.21 | 9.83 | |||||||||||||
1976 | 0.14 | 0.72 | 0.26 | 0.47 | 1.09 | 0.00 | 0.89 | 0.72 | 0.86 | 0.12 | 0.63 | 0.05 | 5.95 | |||||||||||||
1977 | 0.79 | 0.26 | 0.23 | 0.55 | 0.73 | 0.00 | 3.71 | 2.01 | 1.39 | 0.29 | 1.13 | 0.48 | 11.57 | |||||||||||||
1978 | 0.75 | 0.76 | 0.33 | 0.28 | 2.02 | 0.96 | 0.53 | 0.69 | 0.96 | 0.92 | 2.74 | 0.62 | 11.56 | |||||||||||||
1979 | 1.50 | 0.21 | 0.60 | 0.45 | 1.74 | 0.85 | 1.43 | 2.16 | 0.05 | 1.03 | 1.49 | 0.71 | 12.22 | |||||||||||||
1980 | 1.53 | 0.60 | 0.49 | 0.54 | 1.91 | 0.06 | 0.77 | 0.32 | 0.99 | 0.30 | 0.17 | 0.20 | 7.88 | |||||||||||||
1981 | 0.21 | 0.31 | 1.73 | 0.51 | 0.55 | 1.00 | 2.16 | 2.22 | 1.58 | 1.12 | 0.00 | 0.00 | 11.39 | |||||||||||||
1982 | 0.72 | a | 0.30 | a | ----- | z | 0.00 | 0.07 | 0.00 | b | 1.70 | 2.58 | 1.27 | 0.12 | a | 1.28 | 0.19 | 8.23 | a | |||||||
1983 | 0.90 | 0.28 | 0.08 | w | 0.50 | 1.15 | 1.73 | 0.77 | 1.18 | 2.15 | 1.26 | a | 0.60 | 0.84 | 11.36 | a | ||||||||||
1984 | 0.37 | a | 0.00 | 1.03 | 0.15 | 0.29 | 0.55 | 1.10 | 1.92 | 0.79 | 2.31 | 0.00 | 0.88 | 9.39 | ||||||||||||
1985 | 0.90 | 0.27 | 1.26 | a | 2.54 | 0.39 | 0.17 | 1.33 | 0.78 | 2.72 | 1.73 | c | 0.35 | 0.25 | 12.69 | |||||||||||
1986 | 0.04 | 0.43 | b | 0.36 | 1.04 | 0.56 | 1.20 | 1.96 | 0.53 | 1.92 | b | 2.77 | 2.37 | 0.44 | 13.62 | |||||||||||
1987 | 0.54 | 0.60 | 0.00 | 0.00 | 1.04 | 0.22 | 0.83 | 1.09 | 0.32 | 0.28 | 0.95 | 1.70 | 7.57 | |||||||||||||
1988 | 1.03 | 0.23 | 0.59 | 1.54 | 1.45 | 1.72 | 1.60 | 3.65 | 1.16 | 0.77 | a | 0.73 | ----- | z | 14.47 | a | ||||||||||
1989 | 0.38 | 0.73 | 0.30 | 0.00 | 0.02 | 0.13 | 1.52 | 1.38 | 0.17 | 1.22 | 0.00 | 0.07 | 5.92 | |||||||||||||
1990 | 0.16 | 0.58 | 0.81 | 2.31 | 0.68 | 0.52 | 1.77 | 2.03 | 1.08 | 0.68 | 0.96 | 0.90 | 12.48 | |||||||||||||
1991 | 0.12 | 0.26 | 0.24 | 0.19 | 0.62 | 1.32 | 1.55 | 0.72 | 2.07 | 0.31 | 1.71 | 1.08 | 10.19 | |||||||||||||
1992 | 0.55 | 0.26 | 0.32 | 0.45 | 2.17 | 0.11 | 2.14 | 3.46 | 0.47 | 0.34 | 0.65 | 0.48 | 11.40 | |||||||||||||
1993 | 1.10 | 0.25 | 0.71 | 0.08 | 0.50 | 0.87 | 0.00 | 3.77 | 1.15 | 0.00 | 0.95 | 0.00 | 9.38 | |||||||||||||
1994 | 0.00 | 0.52 | 1.62 | 0.84 | 1.31 | b | 0.00 | a | 3.26 | 3.29 | 1.17 | 1.34 | 1.65 | 0.25 | 15.25 | |||||||||||
1995 | 0.57 | 0.62 | 0.49 | 0.60 | 0.90 | 0.48 | 0.41 | 1.86 | 1.88 | 0.00 | 0.69 | a | 0.56 | 9.06 | ||||||||||||
1996 | 0.13 | 0.22 | 0.21 | 0.01 | 0.00 | 1.70 | 1.63 | 1.23 | 1.28 | 1.79 | 0.56 | 0.00 | 8.76 | |||||||||||||
1997 | 1.18 | 0.40 | 0.00 | 1.56 | 0.99 | 1.08 | 2.28 | 1.96 | 2.40 | 0.80 | 0.79 | 1.49 | 14.93 | |||||||||||||
1998 | 0.49 | 0.73 | 0.68 | a | 0.22 | 0.00 | 0.05 | 2.38 | 1.46 | 0.14 | 3.08 | 0.65 | 0.02 | 9.90 | ||||||||||||
1999 | 0.16 | 0.10 | 0.63 | 1.48 | 0.68 | 1.13 | 3.89 | 3.88 | 1.01 | 0.05 | 0.00 | 0.12 | 13.13 | |||||||||||||
2000 | 0.34 | 0.12 | 3.97 | 0.41 | 0.00 | 0.87 | 0.77 | 0.28 | 0.24 | 1.65 | 0.75 | 0.08 | a | 9.48 | ||||||||||||
2001 | 0.35 | 0.79 | 0.25 | 0.43 | 0.35 | 0.30 | 1.30 | 2.37 | 0.53 | 0.00 | 0.46 | 0.51 | a | 7.64 | ||||||||||||
2002 | 0.39 | 0.04 | 0.02 | 0.40 | 0.13 | 0.42 | 1.41 | 1.62 | 1.88 | 1.80 | 0.50 | 0.69 | 9.30 | |||||||||||||
2003 | 0.00 | 0.78 | 0.88 | 0.00 | 0.25 | 0.12 | 0.34 | 1.97 | 2.45 | 1.25 | 0.93 | 0.13 | 9.10 | |||||||||||||
2004 | 0.43 | 1.60 | 0.25 | 4.25 | 0.04 | 0.00 | c | 0.58 | 1.56 | 1.17 | 0.59 | 0.18 | a | 0.37 | 11.02 | |||||||||||
2005 | 0.77 | a | 1.89 | 1.39 | 0.86 | 0.33 | 0.20 | 0.51 | 1.10 | b | 1.01 | 0.47 | b | 0.06 | 0.10 | 8.69 | ||||||||||
2006 | 0.07 | 0.07 | 0.92 | 0.14 | 0.10 | 0.51 | 2.68 | b | 3.74 | d | 0.73 | 1.15 | b | 0.10 | 1.09 | 11.30 | ||||||||||
2007 | 0.56 | 0.67 | 0.80 | 0.55 | 1.20 | c | 0.56 | 1.19 | 0.81 | 0.67 | 0.20 | 0.04 | a | 1.55 | 8.80 | |||||||||||
2008 | 0.67 | 0.57 | 0.04 | 0.05 | 1.05 | 0.22 | 3.31 | 2.44 | a | 0.28 | a | 0.86 | 0.37 | 0.95 | 10.81 | |||||||||||
2009 | 0.30 | 0.11 | 0.55 | 0.56 | a | 0.88 | a | 2.17 | 1.35 | 1.04 | 1.86 | b | 1.01 | 0.24 | 0.49 | 10.56 | ||||||||||
2010 | 1.07 | 0.80 | 0.91 | 1.90 | 0.52 | 0.00 | a | 1.48 | 1.27 | 0.94 | 0.72 | 0.04 | 1.27 | 10.92 | ||||||||||||
2011 | ----- | z | 0.06 | y | ----- | z | 0.53 | ----- | z | 0.00 | 0.51 | a | 1.43 | w | 1.79 | a | 1.45 | a | 0.68 | y | 1.44 | 5.72 | f | |||
2012 | 0.00 | 0.18 | ----- | z | ----- | z | 0.16 | 0.03 | 1.98 | 0.57 | 0.46 | 0.04 | a | 0.11 | a | 0.54 | 4.07 | b | ||||||||
2013 | 0.27 | a | 0.03 | 0.08 | 0.43 | 0.02 | a | 0.00 | a | 2.36 | 1.21 | 3.77 | 0.76 | a | 1.55 | b | 0.16 | 10.64 | ||||||||
2014 | 0.00 | c | 0.07 | 0.27 | 0.32 | 0.63 | 0.23 | 3.50 | 1.82 | a | 0.61 | 0.80 | c | 0.04 | a | 1.55 | a | 9.84 | ||||||||
2015 | 0.53 | 0.76 | 0.52 | 0.78 | c | 3.05 | 0.68 | 2.17 | 1.55 | 0.30 | a | 1.56 | b | 0.90 | c | 0.91 | 13.71 | |||||||||
2016 | 0.28 | 0.21 | 0.00 | 1.13 | 0.48 | a | 0.00 | 0.34 | a | 2.27 | 0.91 | 0.03 | 1.23 | b | 0.26 | 7.14 | ||||||||||
2017 | 1.18 | 0.33 | 0.17 | 1.09 | 0.71 | 0.13 | 1.84 | 1.04 | 2.73 | 0.31 | 0.03 | 0.00 | 9.56 | |||||||||||||
2018 | 0.05 | 0.35 | a | 1.01 | 0.00 | 0.39 | 0.61 | 1.29 | d | 0.71 | a | 0.72 | 1.80 | 0.01 | b | 0.46 | c | 7.40 | ||||||||
2019 | 0.43 | 0.77 | a | 0.61 | 0.67 | 1.23 | 0.20 | a | 0.80 | e | 0.36 | d | 0.75 | a | 0.18 | c | 0.93 | b | 0.63 | c | 7.56 | |||||
2020 | 0.32 | a | 0.58 | 0.12 | c | 0.00 | b | 0.17 | e | 0.31 | b | 1.82 | d | 0.18 | l | 1.38 | g | 1.40 | 0.15 | l | 0.85 | e | 5.57 | c | ||
2021 | 0.00 | k | 0.00 | g | 0.00 | a | 0.10 | a | 0.38 | m | 0.00 | m | 2.19 | 0.41 | d | 1.45 | 0.41 | 0.05 | f | 0.00 | b | 4.56 | e | |||
2022 | 0.06 | 0.25 | b | 0.33 | d | 0.00 | 0.03 | 1.87 | 0.78 | 1.76 | 2.90 | c | 1.23 | c | 0.15 | i | 0.36 | 9.57 | a | |||||||
2023 | 0.72 | h | 0.38 | a | 2.11 | e | 0.05 | f | 0.32 | i | 0.05 | 0.01 | 0.45 | g | 0.82 | c | ----- | z | ----- | z | 1.23 | 4.60 | f | |||
2024 | 1.29 | 0.98 | b | 0.30 | e | 0.10 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.57 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.49 | 0.48 | 0.61 | 0.59 | 0.66 | 0.54 | 1.52 | 1.73 | 1.27 | 0.94 | 0.63 | 0.57 | 10.01 | |||||||||||||
S.D. | 0.43 | 0.39 | 0.66 | 0.73 | 0.66 | 0.62 | 0.92 | 1.05 | 0.83 | 0.87 | 0.59 | 0.49 | 2.24 | |||||||||||||
SKEW | 1.15 | 1.39 | 2.59 | 2.72 | 1.40 | 1.37 | 0.68 | 0.80 | 0.71 | 1.20 | 1.36 | 0.80 | 0.34 | |||||||||||||
MAX | 1.88 | 1.89 | 3.97 | 4.25 | 3.05 | 2.33 | 3.89 | 4.64 | 3.77 | 3.60 | 2.74 | 1.79 | 15.25 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 5.92 | |||||||||||||
YRS | 59 | 62 | 60 | 61 | 60 | 62 | 63 | 60 | 62 | 62 | 58 | 62 | 52 |