YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | 0.00 | 0.57 | 0.71 | 0.61 | 0.25 | 0.66 | 5.15 | 0.36 | 0.50 | 0.10 | ----- | z | ||||||||||
1981 | 0.28 | 0.24 | 0.03 | 0.36 | 0.69 | 0.58 | 0.77 | 3.00 | 1.05 | 0.27 | 0.10 | 0.00 | 3.00 | |||||||||||||
1982 | 0.46 | d | 0.15 | b | ----- | z | 0.25 | d | 0.20 | 1.85 | 0.75 | 0.64 | a | 1.30 | a | 0.76 | b | 0.48 | 0.62 | ----- | z | |||||
1983 | 0.22 | 0.44 | 0.09 | a | 0.53 | a | 0.21 | b | 0.51 | 1.08 | a | 0.17 | 0.34 | 1.60 | b | 1.66 | a | 0.30 | c | 1.66 | k | |||||
1984 | 0.10 | a | 0.10 | 0.30 | b | 0.02 | 0.86 | 0.62 | c | 0.89 | 3.00 | b | 1.16 | f | 0.72 | d | 0.72 | d | 1.15 | d | ----- | z | ||||
1985 | 0.15 | b | 0.07 | 0.22 | a | 0.60 | 0.62 | 0.66 | 0.32 | 1.17 | c | 1.01 | a | 1.14 | 0.13 | 0.05 | a | 1.17 | h | |||||||
1986 | 0.55 | 0.20 | b | 0.15 | b | 0.10 | 0.55 | 3.50 | 0.46 | a | 1.06 | 1.33 | 1.24 | b | 0.72 | a | 0.37 | 3.50 | h | |||||||
1987 | 0.80 | 0.45 | b | 0.27 | 0.35 | 0.50 | 0.76 | 1.15 | c | 1.25 | 0.73 | 0.12 | a | 0.43 | 0.67 | a | 1.25 | g | ||||||||
1988 | 0.00 | 0.88 | a | 0.00 | 0.24 | 0.36 | 0.45 | 1.23 | 1.16 | 1.01 | a | 0.00 | 0.05 | d | 0.27 | 1.23 | f | |||||||||
1989 | 0.29 | 0.25 | 0.27 | 0.05 | 0.64 | 1.10 | 0.37 | 1.46 | 0.47 | 0.06 | 0.00 | 0.10 | 1.46 | |||||||||||||
1990 | 0.20 | 0.10 | 0.20 | 0.60 | 0.20 | a | 0.09 | 0.76 | 4.27 | a | 0.43 | 0.00 | 0.27 | b | 0.06 | b | 4.27 | f | ||||||||
1991 | 0.60 | 0.23 | 0.05 | c | 0.00 | 0.87 | 0.47 | 1.09 | 1.10 | 0.53 | 0.35 | a | 0.96 | 0.80 | a | 1.10 | e | |||||||||
1992 | 0.31 | 0.40 | 0.10 | 0.46 | 0.94 | 0.50 | 0.48 | 0.75 | 0.44 | 0.67 | 0.11 | 0.65 | 0.94 | |||||||||||||
1993 | 0.45 | 0.10 | 0.12 | 0.50 | 0.10 | 0.91 | 1.21 | 2.70 | 0.20 | a | 0.58 | a | 0.33 | 0.15 | 2.70 | b | ||||||||||
1994 | 0.12 | 0.00 | 0.38 | 0.29 | a | 0.70 | 0.16 | 0.71 | 2.00 | 0.79 | 0.70 | 0.37 | 0.04 | 2.00 | a | |||||||||||
1995 | 0.10 | 0.11 | e | 0.12 | 0.38 | 0.13 | 0.75 | 0.33 | 0.73 | 1.72 | 0.00 | 0.03 | 0.01 | 1.72 | e | |||||||||||
1996 | 0.31 | 0.05 | 0.01 | 0.25 | 0.00 | 1.28 | 0.50 | 0.50 | b | 4.00 | a | 0.16 | 0.00 | 0.05 | c | 4.00 | f | |||||||||
1997 | 0.80 | 0.20 | 0.07 | 0.73 | 0.95 | 2.56 | 1.23 | 1.47 | 0.71 | 0.53 | b | 0.15 | c | 0.62 | 2.56 | e | ||||||||||
1998 | 0.03 | 0.10 | 0.51 | 0.00 | 0.00 | 0.40 | 1.12 | 1.30 | 0.27 | 1.47 | 0.08 | 0.60 | b | 1.47 | b | |||||||||||
1999 | 0.30 | a | 0.00 | 1.03 | 0.20 | a | 1.31 | 1.24 | 2.02 | 0.87 | 0.42 | 0.33 | a | 0.00 | 0.75 | 2.02 | c | |||||||||
2000 | 0.00 | 0.18 | 0.65 | 0.17 | 0.07 | 1.45 | 0.72 | b | 0.29 | i | 0.13 | 0.40 | b | 1.30 | 0.39 | 1.45 | m | |||||||||
2001 | 0.15 | 0.55 | 0.99 | a | ----- | z | 0.77 | a | 0.20 | b | 1.25 | b | 0.60 | 0.20 | f | 0.52 | 0.56 | a | 0.08 | b | ----- | z | ||||
2002 | 0.25 | a | 0.10 | c | 1.80 | 0.00 | 0.14 | 0.60 | 0.82 | 0.51 | 1.17 | a | 0.42 | b | 0.11 | b | 0.71 | b | 1.80 | k | ||||||
2003 | 0.08 | a | 0.12 | 0.12 | b | 0.00 | a | 0.11 | e | 0.35 | 0.08 | b | 0.48 | a | 0.25 | a | 0.67 | a | 0.06 | c | 0.02 | a | 0.67 | r | ||
2004 | 0.05 | 0.30 | k | 0.25 | f | 1.77 | 0.33 | b | 0.37 | 2.12 | a | 1.02 | b | 0.95 | 1.22 | 0.60 | 0.25 | 2.12 | v | |||||||
2005 | 0.13 | 0.67 | 0.68 | 0.23 | 0.46 | 0.08 | 0.45 | 1.64 | b | 2.01 | 0.50 | 0.00 | 0.00 | 2.01 | b | |||||||||||
2006 | 0.03 | 0.03 | 0.00 | x | 0.00 | 0.51 | 0.65 | 1.00 | k | ----- | z | ----- | z | 0.75 | d | 0.03 | 0.10 | ----- | z | |||||||
2007 | 0.48 | 0.35 | 0.48 | 0.34 | 1.02 | a | 0.50 | 0.20 | i | 0.40 | 1.20 | t | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.08 | ----- | z | |
2009 | 0.00 | 0.00 | 0.20 | 0.18 | 1.04 | 1.89 | 1.49 | 0.98 | 0.46 | 0.22 | 0.46 | 0.57 | 1.89 | |||||||||||||
2010 | 0.63 | 0.65 | 0.56 | 0.52 | 0.45 | 0.58 | 1.20 | 1.88 | 0.47 | 0.53 | 0.00 | 0.00 | 1.88 | |||||||||||||
2011 | 0.00 | 0.07 | b | 0.00 | 0.00 | 0.00 | 0.00 | 0.78 | 0.39 | 2.75 | 0.45 | 0.10 | 0.41 | 2.75 | b | |||||||||||
2012 | 0.00 | 0.05 | 0.19 | 0.10 | 1.22 | 0.18 | 1.15 | 1.10 | 0.56 | b | 0.46 | 0.17 | 0.00 | 1.22 | b | |||||||||||
2013 | 0.02 | 0.25 | 0.00 | 0.00 | 0.07 | a | 0.02 | a | 1.01 | a | 1.44 | 2.55 | 0.30 | 0.20 | 0.02 | 2.55 | c | |||||||||
2014 | 0.00 | 0.05 | 0.30 | 0.11 | a | 1.01 | 0.82 | 1.17 | 0.24 | 1.95 | 0.31 | 0.32 | 0.12 | 1.95 | a | |||||||||||
2015 | 0.47 | 0.32 | 0.36 | 1.88 | 1.05 | 1.30 | 0.91 | 0.70 | 0.43 | 1.84 | 0.00 | 1.81 | 1.88 | |||||||||||||
2016 | 0.00 | 0.27 | 0.00 | 0.21 | 0.33 | 0.30 | 0.59 | 0.60 | 0.84 | 1.05 | 0.72 | 0.41 | 1.05 | |||||||||||||
2017 | 0.41 | 0.25 | 0.04 | 1.03 | 0.06 | 0.57 | 0.60 | 1.69 | 0.37 | 1.36 | 0.00 | 0.00 | 1.69 | |||||||||||||
2018 | 0.00 | 0.65 | 0.03 | 0.07 | 0.66 | 0.51 | 0.99 | 0.45 | 0.52 | 2.45 | 0.04 | 0.50 | 2.45 | |||||||||||||
2019 | 0.05 | 0.04 | 0.00 | 0.32 | 0.24 | 0.62 | ----- | z | 1.04 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.23 | 0.23 | 0.29 | 0.35 | 0.51 | 0.77 | 0.89 | 1.21 | 1.10 | 0.66 | 0.32 | 0.34 | 1.94 | |||||||||||||
S.D. | 0.23 | 0.22 | 0.37 | 0.43 | 0.38 | 0.71 | 0.45 | 0.89 | 1.11 | 0.55 | 0.38 | 0.39 | 0.59 | |||||||||||||
SKEW | 0.89 | 1.22 | 2.29 | 2.26 | 0.31 | 2.03 | 0.68 | 1.63 | 2.14 | 1.29 | 1.72 | 1.73 | 0.07 | |||||||||||||
MAX | 0.80 | 0.88 | 1.80 | 1.88 | 1.31 | 3.50 | 2.12 | 4.27 | 5.15 | 2.45 | 1.66 | 1.81 | 3.00 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.17 | 0.13 | 0.00 | 0.00 | 0.00 | 0.94 | |||||||||||||
YRS | 38 | 37 | 36 | 38 | 39 | 39 | 36 | 36 | 34 | 37 | 37 | 38 | 18 |