YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.12 | 0.32 | 0.30 | 0.48 | a | 0.60 | 0.50 | ----- | z | |||||
1981 | 0.16 | b | 0.35 | 0.73 | 1.05 | 0.90 | a | 0.25 | 0.40 | 0.33 | 0.35 | 0.80 | c | 0.52 | 0.83 | b | 1.05 | h | ||||||||
1982 | 0.75 | a | 0.23 | 1.04 | q | 0.30 | 1.10 | 0.48 | 0.80 | 0.35 | 0.78 | 0.53 | 0.50 | 0.45 | 1.10 | r | ||||||||||
1983 | 0.16 | a | 0.25 | a | 0.65 | a | 0.50 | a | 1.30 | 0.26 | 0.11 | 0.50 | 0.20 | 0.50 | 1.10 | 0.60 | a | 1.30 | e | |||||||
1984 | 0.50 | 0.50 | 0.60 | 0.40 | 1.00 | a | 2.35 | 0.60 | 1.00 | 0.30 | 0.88 | 0.60 | 0.75 | 2.35 | a | |||||||||||
1985 | 0.08 | 1.00 | 1.30 | b | 0.60 | 0.50 | 0.40 | 0.70 | 0.23 | 1.05 | 0.86 | 1.00 | 0.35 | a | 1.30 | c | ||||||||||
1986 | ----- | z | ----- | z | 0.30 | b | 0.15 | j | 0.63 | a | 0.45 | 0.40 | 0.45 | 0.93 | c | 0.50 | e | 0.15 | h | 0.40 | ----- | z | ||||
1987 | 0.30 | 0.80 | 0.50 | 0.23 | c | 0.33 | 1.00 | 0.38 | 0.38 | 0.23 | 0.43 | 0.38 | a | 0.44 | 1.00 | d | ||||||||||
1988 | 0.45 | 0.35 | 0.55 | 0.40 | 0.55 | 0.44 | 0.26 | 0.28 | 0.82 | 0.10 | 1.80 | 0.40 | 1.80 | |||||||||||||
1989 | 0.55 | 1.22 | 1.20 | 0.50 | 0.32 | 0.16 | 0.40 | 0.48 | 0.60 | 0.17 | c | 1.25 | ----- | z | ----- | z | ||||||||||
1990 | 0.24 | 0.36 | 0.60 | 0.85 | a | 0.18 | 0.20 | 0.44 | 0.24 | 0.42 | 0.86 | b | 0.82 | 0.52 | 0.86 | c | ||||||||||
1991 | 0.40 | 0.35 | 0.80 | 0.46 | 0.62 | 0.76 | 0.40 | 0.52 | 0.45 | 0.95 | b | 0.42 | a | 0.32 | 0.95 | c | ||||||||||
1992 | 0.26 | 0.24 | 0.89 | 0.54 | 1.00 | 0.30 | 0.49 | 0.31 | 0.52 | 0.43 | 1.12 | 0.48 | a | 1.12 | a | |||||||||||
1993 | 0.36 | 0.79 | 1.60 | r | 0.56 | 0.65 | 0.57 | 0.73 | 0.25 | 0.93 | 0.62 | ----- | z | 0.22 | ----- | z | ||||||||||
1994 | 0.23 | b | 0.90 | 0.62 | 0.49 | 0.41 | 0.41 | 0.17 | 0.64 | 0.35 | 0.39 | 0.48 | ----- | z | ----- | z | ||||||||||
1995 | 0.30 | 1.06 | 1.56 | 0.52 | 0.70 | 0.78 | 0.74 | 0.26 | 0.69 | 0.37 | 0.53 | ----- | z | ----- | z | |||||||||||
1996 | 0.36 | 1.92 | ----- | z | 0.71 | 0.62 | 0.42 | 0.42 | 0.16 | 0.40 | 0.96 | 0.67 | 0.64 | ----- | z | |||||||||||
1997 | 0.79 | 0.44 | 0.63 | 0.80 | 0.61 | 0.83 | 0.10 | 0.32 | 0.45 | 0.77 | 0.54 | 0.29 | 0.83 | |||||||||||||
1998 | 0.48 | 0.60 | 0.53 | 0.62 | 0.15 | 0.58 | 0.60 | 0.20 | 0.44 | ----- | z | 1.00 | 0.82 | ----- | z | |||||||||||
1999 | 0.67 | 0.52 | 0.40 | 0.53 | 0.92 | 0.37 | 0.46 | 0.97 | 0.55 | 0.71 | 0.24 | 0.22 | 0.97 | |||||||||||||
2000 | 0.49 | 0.81 | 0.57 | 0.93 | 0.52 | 0.57 | 0.54 | 0.46 | 0.82 | 0.15 | 0.51 | 0.51 | 0.93 | |||||||||||||
2001 | 0.55 | c | 0.34 | b | 0.45 | b | 0.90 | 1.30 | 0.70 | 0.40 | 0.66 | 0.50 | 0.56 | 0.60 | 0.30 | 1.30 | g | |||||||||
2002 | 0.30 | a | 0.60 | 0.70 | 0.42 | a | 0.12 | 0.00 | 0.60 | 0.35 | 0.70 | 0.50 | 0.92 | 0.40 | a | 0.92 | c | |||||||||
2003 | 0.30 | 0.34 | c | 0.75 | 0.65 | a | 0.55 | 0.44 | 0.21 | 0.30 | 0.70 | 0.30 | 0.50 | 0.60 | 0.75 | d | ||||||||||
2004 | 0.76 | a | 0.66 | a | 0.20 | 0.52 | 0.32 | 0.70 | 0.42 | 0.40 | 0.70 | 0.50 | a | 1.10 | 0.80 | 1.10 | c | |||||||||
2005 | 0.95 | b | 0.38 | a | 0.40 | b | 0.68 | 0.46 | 0.43 | 1.20 | 0.52 | 0.80 | 0.74 | 0.44 | 0.71 | 1.20 | e | |||||||||
2006 | 0.52 | 0.36 | 0.38 | 0.28 | 0.55 | 0.28 | 0.58 | 0.25 | 0.70 | 0.78 | a | 0.85 | 0.50 | 0.85 | a | |||||||||||
2007 | 0.70 | 0.80 | 0.35 | 0.44 | 0.70 | 0.28 | 1.17 | 0.29 | 1.07 | 0.62 | 0.26 | 1.16 | 1.17 | |||||||||||||
2008 | 1.15 | 0.80 | 0.90 | 0.40 | 0.65 | 0.35 | 0.32 | 0.48 | 0.50 | 0.42 | 0.62 | 0.98 | 1.15 | |||||||||||||
2009 | 0.46 | 0.55 | 0.80 | 0.52 | 0.45 | 0.35 | 0.37 | 0.25 | 0.31 | 0.32 | 0.69 | 0.40 | 0.80 | |||||||||||||
2010 | 0.18 | 0.62 | 0.45 | 0.69 | 0.37 | 1.33 | 0.33 | 0.67 | 0.35 | 0.68 | 0.50 | 0.62 | 1.33 | |||||||||||||
2011 | 0.84 | 0.56 | 0.77 | 1.06 | 0.85 | 0.34 | 0.77 | 0.18 | 0.36 | 0.68 | 0.71 | 0.28 | 1.06 | |||||||||||||
2012 | 0.83 | 0.25 | 0.32 | 0.90 | 0.55 | ----- | z | 0.32 | 0.47 | 0.47 | 0.44 | 0.26 | 0.79 | ----- | z | |||||||||||
2013 | 0.45 | 0.42 | 0.34 | 0.80 | 0.52 | 0.08 | 0.93 | 0.46 | 1.05 | 0.37 | 0.55 | 1.05 | 1.05 | |||||||||||||
2014 | 2.20 | 0.65 | 0.60 | 0.48 | 0.50 | 0.12 | 0.63 | 0.40 | 0.63 | 0.53 | 0.46 | 1.02 | 2.20 | |||||||||||||
2015 | 0.13 | 0.58 | 0.47 | 0.81 | 0.87 | 0.32 | 0.62 | 0.49 | 0.38 | 0.87 | 0.42 | 0.49 | 0.87 | |||||||||||||
2016 | 0.98 | 0.79 | 0.62 | 0.92 | 0.77 | 0.34 | 0.35 | 0.63 | 0.49 | 0.45 | 0.30 | 1.48 | 1.48 | |||||||||||||
2017 | 1.13 | 0.56 | 0.55 | 0.47 | 0.58 | 0.25 | 0.56 | 0.48 | 0.43 | 1.05 | 0.53 | 0.45 | 1.13 | |||||||||||||
2018 | 0.33 | 0.74 | 0.51 | 1.41 | 0.49 | 0.70 | 0.25 | 0.45 | 0.27 | 0.50 | 0.51 | 0.68 | 1.41 | |||||||||||||
2019 | 0.55 | 0.34 | 1.37 | 0.96 | 1.09 | 0.41 | 0.31 | 0.39 | 0.13 | 0.60 | 0.76 | 0.53 | 1.37 | |||||||||||||
2020 | 0.37 | 0.42 | 0.41 | 1.20 | 0.84 | 0.75 | 0.52 | 0.80 | 0.51 | 0.80 | 0.60 | 0.49 | 1.20 | |||||||||||||
2021 | 0.19 | 0.97 | 0.77 | 0.45 | 0.46 | 0.43 | 0.46 | 0.56 | 0.43 | 0.55 | 0.62 | 1.30 | 1.30 | |||||||||||||
2022 | 0.60 | 0.54 | 0.58 | 0.53 | 0.84 | 0.23 | 0.47 | 1.30 | 0.51 | 0.65 | 0.56 | 0.48 | 1.30 | |||||||||||||
2023 | 0.46 | 0.50 | 0.81 | 0.91 | 0.62 | 0.66 | 0.06 | 0.25 | 0.57 | 1.48 | 0.24 | 0.50 | 1.48 | |||||||||||||
2024 | 0.30 | 0.55 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.53 | 0.60 | 0.65 | 0.65 | 0.64 | 0.50 | 0.48 | 0.45 | 0.55 | 0.60 | 0.64 | 0.60 | 1.20 | |||||||||||||
S.D. | 0.37 | 0.32 | 0.30 | 0.26 | 0.28 | 0.39 | 0.25 | 0.23 | 0.24 | 0.26 | 0.31 | 0.29 | 0.38 | |||||||||||||
SKEW | 2.26 | 1.86 | 1.32 | 0.80 | 0.48 | 2.80 | 0.87 | 1.67 | 0.58 | 0.74 | 1.50 | 1.17 | 1.52 | |||||||||||||
MAX | 2.20 | 1.92 | 1.56 | 1.41 | 1.30 | 2.35 | 1.20 | 1.30 | 1.07 | 1.48 | 1.80 | 1.48 | 2.35 | |||||||||||||
MIN | 0.08 | 0.23 | 0.20 | 0.23 | 0.12 | 0.00 | 0.06 | 0.16 | 0.13 | 0.10 | 0.24 | 0.22 | 0.75 | |||||||||||||
YRS | 43 | 43 | 40 | 42 | 43 | 42 | 44 | 44 | 44 | 43 | 42 | 41 | 30 |