YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1975 | ----- | z | 0.28 | 0.47 | 0.40 | 0.09 | 0.32 | 0.48 | 0.62 | 0.90 | 0.00 | 0.25 | 0.00 | ----- | z | |||||||||||
1976 | 0.00 | ----- | z | 0.11 | 0.12 | 0.48 | 0.00 | 1.11 | 0.47 | 0.27 | 0.00 | 0.45 | 0.01 | ----- | z | |||||||||||
1977 | 0.22 | 0.00 | 0.27 | 0.38 | 0.45 | 0.08 | 0.94 | 1.63 | 0.22 | 0.34 | 0.00 | 0.08 | 1.63 | |||||||||||||
1978 | 0.25 | 0.17 | 0.46 | 0.05 | 1.51 | 0.98 | 0.25 | 0.52 | 0.45 | 0.43 | 0.85 | 0.50 | 1.51 | |||||||||||||
1979 | 0.79 | 0.08 | 0.00 | 0.45 | 0.75 | 0.86 | 0.27 | 1.57 | 0.30 | 0.23 | 0.61 | 0.38 | 1.57 | |||||||||||||
1980 | 0.36 | 0.27 | 0.24 | 0.23 | 0.87 | 0.11 | 0.17 | 0.42 | 0.51 | 0.13 | 0.25 | 0.06 | 0.87 | |||||||||||||
1981 | 0.10 | 0.00 | 0.22 | 0.35 | 0.69 | 0.54 | 1.18 | 0.39 | 0.64 | 0.49 | 0.25 | 0.00 | 1.18 | |||||||||||||
1982 | 0.49 | a | 0.33 | 0.39 | 0.00 | 0.49 | 0.04 | 0.61 | 0.26 | 0.57 | 0.39 | 0.64 | a | 0.26 | 0.64 | b | ||||||||||
1983 | 0.28 | 0.51 | 0.37 | 0.05 | 0.28 | 0.56 | 0.62 | 1.19 | 0.24 | 0.39 | 0.09 | 0.28 | s | 1.19 | s | |||||||||||
1984 | 0.28 | 0.01 | 0.52 | 0.21 | a | 0.01 | 0.18 | 0.47 | 0.99 | 0.50 | 0.74 | 0.24 | 0.80 | 0.99 | a | |||||||||||
1985 | 0.24 | 0.24 | 1.29 | 2.23 | 0.40 | 0.39 | 0.72 | 0.78 | 0.79 | 1.11 | 0.06 | 0.05 | 2.23 | |||||||||||||
1986 | 0.00 | 0.20 | 0.29 | b | 0.52 | 0.29 | 0.81 | 0.69 | 0.31 | 1.91 | 1.61 | 2.10 | 0.38 | 2.10 | b | |||||||||||
1987 | 0.26 | 0.26 | 0.03 | 0.11 | 0.59 | 0.42 | 0.36 | 0.76 | 0.08 | 0.18 | 0.49 | 0.76 | 0.76 | |||||||||||||
1988 | 0.33 | 0.14 | 0.10 | 1.15 | 0.95 | 0.62 | 0.50 | 0.81 | a | 0.93 | 0.14 | 0.06 | 0.12 | 1.15 | a | |||||||||||
1989 | 0.35 | 0.58 | 0.55 | 0.00 | 0.17 | 0.04 | 0.79 | 0.27 | 0.72 | 0.93 | 0.00 | 0.00 | 0.93 | |||||||||||||
1990 | 0.43 | 0.18 | 0.26 | 0.57 | 0.61 | 0.36 | 0.92 | 0.40 | 0.61 | 0.30 | 0.44 | 0.30 | 0.92 | |||||||||||||
1991 | 0.20 | 0.55 | 0.53 | 0.00 | 1.36 | 1.00 | 0.85 | 0.71 | 0.98 | 0.31 | 1.08 | 0.88 | 1.36 | |||||||||||||
1992 | 0.15 | 0.17 | 0.20 | 0.08 | 0.71 | 0.44 | 0.27 | 0.76 | 0.36 | 0.08 | 0.30 | ----- | z | ----- | z | |||||||||||
1993 | 0.62 | 0.55 | 0.50 | 0.03 | 0.25 | 0.14 | 2.00 | 0.43 | 0.16 | 0.15 | 0.34 | 0.04 | 2.00 | |||||||||||||
1994 | 0.17 | 0.22 | 0.54 | 0.35 | 0.76 | 0.19 | 0.34 | 0.70 | 0.22 | 1.24 | 1.55 | 0.50 | 1.55 | |||||||||||||
1995 | 0.44 | 0.23 | 0.43 | 0.30 | 1.01 | 0.17 | 0.73 | 0.33 | 0.36 | 0.00 | ----- | z | 0.18 | ----- | z | |||||||||||
1996 | 0.23 | 0.24 | 0.01 | 0.00 | 0.01 | 0.91 | 0.57 | 1.06 | 0.62 | 0.87 | 0.16 | 0.00 | 1.06 | |||||||||||||
1997 | 0.38 | 0.38 | 0.08 | 0.45 | 0.27 | 0.88 | 0.41 | 0.55 | 0.80 | 0.12 | 0.60 | 0.65 | 0.88 | |||||||||||||
1998 | 0.01 | 0.25 | 0.76 | a | 0.64 | 0.00 | 0.35 | 0.35 | 0.74 | 0.05 | 0.65 | 0.27 | 0.01 | 0.76 | a | |||||||||||
1999 | 0.07 | 0.00 | 0.75 | 0.48 | 0.71 | ----- | z | ----- | z | 0.88 | 0.46 | 0.40 | 0.00 | 0.15 | ----- | z | ||||||||||
2000 | 0.23 | 0.10 | 0.40 | 0.49 | 0.14 | 0.72 | 0.47 | 1.52 | 0.42 | 0.92 | 1.13 | 0.20 | 1.52 | |||||||||||||
2001 | 0.64 | 0.31 | 0.21 | 0.14 | 0.54 | 0.29 | 0.40 | 0.83 | 0.30 | 0.05 | 0.14 | 0.17 | 0.83 | |||||||||||||
2002 | 0.30 | 0.01 | 0.01 | 0.09 | 0.01 | 0.08 | 0.06 | 0.77 | 0.60 | 0.84 | 0.35 | 0.32 | 0.84 | |||||||||||||
2003 | 0.00 | 0.15 | 0.27 | 0.10 | 1.60 | 0.05 | 0.16 | 0.31 | 0.39 | 0.55 | 0.77 | 0.10 | 1.60 | |||||||||||||
2004 | 0.45 | 0.88 | 0.51 | 0.60 | 0.00 | 0.59 | 0.55 | 0.64 | 0.57 | 1.41 | 0.63 | 0.31 | 1.41 | |||||||||||||
2005 | 0.63 | 0.41 | 0.75 | ----- | z | 0.16 | 0.05 | 0.03 | 0.87 | 1.63 | 0.36 | 0.00 | 0.00 | ----- | z | |||||||||||
2006 | 0.03 | 0.00 | 0.12 | 0.02 | ----- | z | 0.42 | 0.83 | 0.70 | 0.38 | 0.70 | 0.13 | 1.04 | ----- | z | |||||||||||
2007 | 0.46 | 0.30 | 0.63 | 0.29 | 0.34 | 0.43 | 0.76 | 0.12 | 0.29 | 0.22 | 0.30 | 0.75 | 0.76 | |||||||||||||
2008 | 0.27 | 0.60 | 0.00 | 0.07 | 0.42 | 0.07 | 0.51 | 0.41 | 1.17 | 1.10 | 0.45 | 0.48 | c | 1.17 | c | |||||||||||
2009 | ----- | z | ----- | z | 0.13 | 0.42 | 0.58 | a | 0.41 | 0.80 | 0.34 | 0.43 | 0.55 | ----- | z | 0.51 | ----- | z | ||||||||
2010 | 0.60 | ----- | z | ----- | z | 0.28 | ----- | z | 0.15 | 2.40 | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | |||||
2011 | 0.00 | 0.02 | a | 0.03 | 0.04 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.06 | r | 0.80 | 0.40 | b | 0.38 | 0.02 | 0.04 | ----- | z | ||||
2013 | 0.07 | c | 0.00 | 0.00 | 0.24 | 0.08 | 0.12 | 1.35 | 0.35 | 2.50 | 0.38 | 0.72 | 0.12 | 2.50 | c | |||||||||||
2014 | 0.00 | a | 0.17 | 0.26 | 0.07 | 0.20 | 0.36 | 0.88 | 0.35 | 0.16 | 0.12 | 0.48 | 0.53 | a | 0.88 | b | ||||||||||
2015 | 0.43 | 0.45 | 0.33 | 0.33 | 0.72 | 0.18 | 0.85 | 0.21 | 0.22 | 1.15 | 0.46 | 0.40 | 1.15 | |||||||||||||
2016 | 0.16 | 0.32 | 0.00 | 0.46 | 0.15 | 0.08 | 0.76 | 1.04 | 0.10 | 0.16 | 0.57 | 0.15 | 1.04 | |||||||||||||
2017 | 0.56 | 0.29 | 0.44 | 0.45 | 0.67 | 0.23 | 0.61 | 0.30 | 1.07 | 0.78 | 0.17 | 0.00 | 1.07 | |||||||||||||
2018 | 0.00 | 0.30 | 0.24 | 0.02 | 0.30 | 0.21 | 0.42 | 0.11 | 0.38 | 1.15 | 0.10 | 0.75 | b | 1.15 | b | |||||||||||
2019 | 0.42 | b | 0.43 | a | 0.93 | 0.46 | 0.32 | 0.12 | 0.35 | 0.73 | 0.14 | 0.56 | 0.63 | 0.32 | 0.93 | c | ||||||||||
2020 | 0.65 | a | 0.61 | a | 0.65 | 0.35 | 0.14 | a | 0.37 | 0.20 | 0.53 | 0.51 | 0.15 | 0.23 | 0.16 | 0.65 | c | |||||||||
2021 | 0.08 | 0.10 | 0.40 | 0.04 | a | 0.33 | 0.25 | 1.03 | 0.45 | 0.30 | 1.22 | 0.11 | b | 0.30 | b | 1.22 | e | |||||||||
2022 | 0.55 | 0.21 | 0.49 | 0.00 | 0.00 | 0.87 | ----- | z | 0.41 | 0.54 | 0.98 | c | 0.02 | 0.09 | c | ----- | z | |||||||||
2023 | 0.25 | g | 0.20 | 0.24 | 0.09 | a | 0.21 | 0.67 | d | 0.00 | b | 0.30 | 0.74 | 0.03 | 0.24 | a | 0.42 | 0.74 | o | |||||||
2024 | 0.45 | 0.27 | 0.66 | 0.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.30 | 0.26 | 0.36 | 0.30 | 0.45 | 0.36 | 0.64 | 0.63 | 0.57 | 0.53 | 0.41 | 0.29 | 1.22 | |||||||||||||
S.D. | 0.22 | 0.20 | 0.28 | 0.37 | 0.39 | 0.29 | 0.46 | 0.36 | 0.47 | 0.43 | 0.42 | 0.28 | 0.47 | |||||||||||||
SKEW | 0.27 | 0.83 | 0.90 | 3.25 | 1.14 | 0.72 | 1.71 | 1.05 | 2.16 | 0.68 | 1.96 | 0.88 | 1.05 | |||||||||||||
MAX | 0.79 | 0.88 | 1.29 | 2.23 | 1.60 | 1.00 | 2.40 | 1.63 | 2.50 | 1.61 | 2.10 | 1.04 | 2.50 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.05 | 0.00 | 0.00 | 0.00 | 0.64 | |||||||||||||
YRS | 46 | 46 | 48 | 48 | 46 | 47 | 45 | 47 | 47 | 47 | 46 | 45 | 34 |