YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | 0.00 | 0.57 | 1.23 | 0.72 | 0.37 | 3.18 | 8.92 | 0.36 | 0.96 | 0.11 | 16.42 | b | ||||||||||
1981 | 0.51 | 0.29 | 0.03 | 0.51 | 1.07 | 0.95 | 2.26 | 10.56 | 2.42 | 0.55 | 0.15 | 0.00 | 19.30 | |||||||||||||
1982 | 0.46 | d | 0.34 | b | ----- | z | 0.35 | d | 0.59 | 2.65 | 2.20 | 3.04 | a | 4.03 | a | 1.18 | b | 1.13 | 1.46 | 17.43 | a | |||||
1983 | 0.55 | 0.69 | 0.13 | a | 0.68 | a | 0.44 | b | 0.73 | 1.42 | a | 0.43 | 1.59 | 4.19 | b | 2.29 | a | 0.37 | c | 13.51 | ||||||
1984 | 0.20 | a | 0.10 | 0.46 | b | 0.02 | 1.16 | 2.42 | c | 2.40 | 11.72 | b | 1.73 | f | 2.55 | d | 0.77 | d | 1.30 | d | 23.10 | a | ||||
1985 | 0.50 | b | 0.09 | 0.40 | a | 0.78 | 1.53 | 1.35 | 1.42 | 2.04 | c | 2.31 | a | 2.25 | 0.18 | 0.06 | a | 12.91 | ||||||||
1986 | 0.55 | 0.40 | b | 0.23 | b | 0.10 | 1.56 | 12.97 | 1.04 | a | 3.46 | 2.69 | 1.85 | b | 1.75 | a | 1.81 | 28.41 | ||||||||
1987 | 1.01 | 1.29 | b | 0.33 | 0.88 | 1.15 | 1.93 | 1.55 | c | 3.26 | 1.06 | 0.32 | a | 0.50 | 0.95 | a | 14.23 | |||||||||
1988 | 0.00 | 0.99 | a | 0.00 | 0.48 | 0.80 | 1.07 | 4.39 | 3.08 | 2.21 | a | 0.00 | 0.05 | d | 0.46 | 13.53 | ||||||||||
1989 | 0.29 | 0.64 | 0.49 | 0.08 | 0.74 | 1.42 | 1.47 | 5.31 | 1.38 | 0.06 | 0.00 | 0.24 | 12.12 | |||||||||||||
1990 | 0.30 | 0.19 | 0.59 | 1.29 | 0.41 | a | 0.09 | 2.32 | 11.33 | a | 2.38 | 0.00 | 0.49 | b | 0.14 | b | 19.53 | |||||||||
1991 | 0.85 | 0.38 | 0.05 | c | 0.00 | 1.25 | 1.20 | 4.18 | 3.05 | 2.70 | 0.52 | a | 1.19 | 2.48 | a | 17.85 | ||||||||||
1992 | 0.96 | 0.49 | 0.21 | 1.01 | 3.64 | 1.36 | 1.26 | 3.03 | 0.44 | 1.42 | 0.11 | 0.74 | 14.67 | |||||||||||||
1993 | 0.99 | 0.20 | 0.24 | 0.83 | 0.38 | 1.30 | 3.91 | 4.41 | 0.43 | a | 1.29 | a | 0.44 | 0.21 | 14.63 | |||||||||||
1994 | 0.30 | 0.00 | 0.64 | 0.35 | a | 2.68 | 0.19 | 2.12 | 2.37 | 1.00 | 0.85 | 0.73 | 0.04 | 11.27 | ||||||||||||
1995 | 0.16 | 0.16 | e | 0.29 | 0.60 | 0.13 | 1.51 | 0.69 | 2.31 | 4.27 | 0.00 | 0.03 | 0.01 | 10.16 | ||||||||||||
1996 | 0.71 | 0.05 | 0.01 | 0.25 | 0.00 | 6.55 | 2.16 | 1.09 | b | 6.44 | a | 0.19 | 0.00 | 0.05 | c | 17.50 | ||||||||||
1997 | 1.33 | 0.43 | 0.07 | 2.36 | 2.04 | 3.40 | 2.60 | 3.39 | 2.43 | 0.73 | b | 0.29 | c | 2.51 | 21.58 | |||||||||||
1998 | 0.03 | 0.10 | 1.23 | 0.00 | 0.00 | 0.40 | 2.37 | 2.96 | 0.90 | 3.30 | 0.20 | 0.70 | b | 12.19 | ||||||||||||
1999 | 0.38 | a | 0.00 | 1.52 | 0.37 | a | 2.00 | 1.86 | 3.74 | 2.91 | 1.27 | 0.33 | a | 0.00 | 1.28 | 15.66 | ||||||||||
2000 | 0.00 | 0.18 | 0.77 | 0.32 | 0.07 | 3.77 | 1.96 | b | 0.40 | i | 0.35 | 1.19 | b | 1.84 | 0.54 | 10.99 | a | |||||||||
2001 | 0.51 | 0.55 | 1.13 | a | ----- | z | 1.69 | a | 0.40 | b | 2.79 | b | 2.20 | 0.52 | f | 0.70 | 1.19 | a | 0.10 | b | 11.26 | b | ||||
2002 | 0.37 | a | 0.15 | c | 1.82 | 0.00 | 0.14 | 1.51 | 1.58 | 1.51 | 2.70 | a | 1.25 | b | 0.12 | b | 0.91 | b | 12.06 | |||||||
2003 | 0.08 | a | 0.19 | 0.36 | b | 0.00 | a | 0.18 | e | 1.00 | 0.14 | b | 1.54 | a | 0.54 | a | 0.97 | a | 0.11 | c | 0.04 | a | 5.15 | |||
2004 | 0.05 | 0.36 | k | 0.25 | f | 3.68 | 0.69 | b | 0.96 | 4.74 | a | 2.78 | b | 3.03 | 2.22 | 2.51 | 0.51 | 21.17 | b | |||||||
2005 | 0.32 | 1.80 | 1.13 | 0.44 | 0.93 | 0.08 | 0.79 | 6.11 | b | 3.48 | 1.35 | 0.00 | 0.00 | 16.43 | ||||||||||||
2006 | 0.03 | 0.03 | 0.00 | x | 0.00 | 0.70 | 1.00 | 2.29 | k | ----- | z | ----- | z | 2.95 | d | 0.03 | 0.19 | 4.93 | d | |||||||
2007 | 1.02 | 0.69 | 0.92 | 0.84 | 3.74 | a | 0.70 | 0.63 | i | 1.18 | 1.20 | t | ----- | z | ----- | z | ----- | z | 9.09 | e | ||||||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.08 | 0.08 | k | |
2009 | 0.00 | 0.00 | 0.42 | 0.18 | 1.69 | 3.59 | 3.97 | 1.34 | 1.56 | 0.31 | 0.46 | 0.97 | 14.49 | |||||||||||||
2010 | 0.68 | 1.26 | 0.70 | 1.67 | 0.62 | 0.88 | 5.08 | 5.17 | 0.96 | 0.81 | 0.00 | 0.00 | 17.83 | |||||||||||||
2011 | 0.00 | 0.07 | b | 0.00 | 0.00 | 0.00 | 0.00 | 0.96 | 0.80 | 3.27 | 0.83 | 0.12 | 1.39 | 7.44 | ||||||||||||
2012 | 0.00 | 0.05 | 0.19 | 0.20 | 2.94 | 0.18 | 2.25 | 2.95 | 1.53 | b | 0.91 | 0.17 | 0.00 | 11.37 | ||||||||||||
2013 | 0.05 | 0.25 | 0.00 | 0.00 | 0.13 | a | 0.02 | a | 3.70 | a | 3.08 | 7.21 | 0.48 | 0.50 | 0.03 | 15.45 | ||||||||||
2014 | 0.00 | 0.10 | 0.30 | 0.11 | a | 1.27 | 1.70 | 3.38 | 1.35 | 6.45 | 0.47 | 0.52 | 0.12 | 15.77 | ||||||||||||
2015 | 0.74 | 0.78 | 1.08 | 2.24 | 1.72 | 3.05 | 1.93 | 1.83 | 0.82 | 5.48 | 0.00 | 1.81 | 21.48 | |||||||||||||
2016 | 0.00 | 0.30 | 0.00 | 0.64 | 0.90 | 0.97 | 1.09 | 2.18 | 3.74 | 1.19 | 0.86 | 0.55 | 12.42 | |||||||||||||
2017 | 0.87 | 0.25 | 0.07 | 2.00 | 0.06 | 1.86 | 1.68 | 6.18 | 1.57 | 3.01 | 0.00 | 0.00 | 17.55 | |||||||||||||
2018 | 0.00 | 0.65 | 0.03 | 0.07 | 1.06 | 0.89 | 1.75 | 1.62 | 1.79 | 3.80 | 0.06 | 1.39 | 13.11 | |||||||||||||
2019 | 0.05 | 0.04 | 0.00 | 0.70 | 0.47 | 1.08 | ----- | z | 1.63 | h | ----- | z | ----- | z | ----- | z | ----- | z | 2.34 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.39 | 0.38 | 0.44 | 0.65 | 1.07 | 1.74 | 2.27 | 3.47 | 2.58 | 1.35 | 0.53 | 0.62 | 14.99 | |||||||||||||
S.D. | 0.38 | 0.41 | 0.48 | 0.80 | 0.96 | 2.25 | 1.26 | 2.73 | 2.05 | 1.30 | 0.67 | 0.71 | 4.49 | |||||||||||||
SKEW | 0.66 | 1.66 | 1.20 | 1.99 | 1.18 | 3.55 | 0.54 | 1.88 | 1.45 | 1.39 | 1.52 | 1.17 | 0.59 | |||||||||||||
MAX | 1.33 | 1.80 | 1.82 | 3.68 | 3.74 | 12.97 | 5.08 | 11.72 | 8.92 | 5.48 | 2.51 | 2.51 | 28.41 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.43 | 0.35 | 0.00 | 0.00 | 0.00 | 5.15 | |||||||||||||
YRS | 38 | 37 | 36 | 38 | 39 | 39 | 36 | 36 | 34 | 37 | 37 | 38 | 30 |