| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1979 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.30 | 0.08 | 0.38 | |||
| 1980 | 8.39 | 7.36 | 4.01 | 1.03 | 0.46 | 0.00 | 0.00 | 0.00 | 0.00 | 0.47 | 0.00 | 0.43 | 22.15 | |||||||||||||
| 1981 | 3.27 | 1.69 | a | 3.34 | a | 0.62 | 0.15 | 0.00 | z | 0.00 | 0.00 | 0.00 | 0.38 | 1.57 | 0.71 | 11.73 | ||||||||||
| 1982 | 3.31 | 1.68 | 6.15 | 0.89 | 0.15 | 0.00 | 0.00 | 0.00 | 0.60 | 0.15 | 5.43 | 0.00 | z | 18.36 | ||||||||||||
| 1983 | 2.28 | 4.67 | 9.66 | 1.72 | 0.13 | 0.00 | 0.00 | 0.09 | 0.19 | 0.18 | 2.39 | 1.84 | 23.15 | |||||||||||||
| 1984 | 0.24 | 0.14 | 0.00 | 0.62 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.99 | 5.32 | 7.31 | |||||||||||||
| 1985 | 0.91 | 0.81 | 0.38 | 0.22 | 0.10 | 0.00 | 0.00 | 0.00 | 0.21 | 0.11 | 7.21 | 1.74 | 11.69 | |||||||||||||
| 1986 | 0.70 | 0.00 | z | 3.03 | 1.06 | 0.00 | 0.00 | 0.00 | 0.13 | 0.86 | 1.92 | 1.21 | 2.39 | 11.30 | ||||||||||||
| 1987 | 1.77 | 2.04 | 1.37 | 0.63 | 0.06 | 0.00 | 0.00 | 0.00 | 0.68 | 1.60 | 0.00 | z | 2.00 | 10.15 | ||||||||||||
| 1988 | 2.12 | 1.77 | b | 0.14 | 2.42 | a | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | a | 1.29 | 8.20 | ||||||||||
| 1989 | 0.13 | 0.00 | 0.41 | c | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.20 | 0.41 | 0.12 | 0.18 | 1.51 | ||||||||||||
| 1990 | 2.38 | 1.06 | 0.56 | 0.59 | 0.36 | 0.91 | 0.03 | 0.00 | 0.00 | 0.21 | 0.67 | 0.86 | 7.63 | |||||||||||||
| 1991 | 0.73 | 1.68 | 8.53 | 0.21 | 0.00 | 0.00 | 0.68 | 0.01 | 0.00 | z | 0.84 | 0.18 | 1.94 | 14.80 | ||||||||||||
| 1992 | 1.47 | a | 3.81 | a | 3.68 | 0.00 | z | 0.01 | 0.00 | z | 0.07 | 0.10 | 0.00 | 0.00 | z | 0.00 | 1.89 | 11.03 | ||||||||
| 1993 | 11.43 | 4.11 | 1.69 | a | 0.00 | 0.00 | 0.58 | 0.00 | 0.00 | 0.00 | 0.24 | 1.72 | 0.63 | 20.40 | ||||||||||||
| 1994 | 0.98 | 3.22 | 0.00 | z | 0.86 | 0.02 | 0.00 | z | 0.06 | 0.02 | 0.00 | z | 0.08 | 0.68 | 0.37 | 6.29 | ||||||||||
| 1995 | 7.35 | 2.79 | 7.46 | 1.41 | 0.64 | 0.18 | 0.02 | 0.00 | 0.00 | 0.00 | 0.19 | 0.76 | 20.80 | |||||||||||||
| 1996 | 0.00 | z | 3.21 | 2.37 | 0.50 | 0.02 | 0.00 | 0.05 | 0.00 | 0.00 | 0.90 | a | 1.86 | 1.37 | 10.28 | |||||||||||
| 1997 | 3.47 | 0.55 | 0.00 | 0.33 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | z | 0.03 | 1.65 | b | 0.00 | z | 6.05 | ||||||||||
| 1998 | 2.54 | a | 10.35 | 3.63 | a | 0.00 | z | 1.21 | 0.13 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.82 | 0.00 | z | 18.68 | |||||
| 1999 | 1.85 | 0.62 | 0.64 | a | 1.27 | 0.00 | 0.11 | 0.00 | 0.03 | 0.02 | 0.00 | 0.00 | 0.20 | 4.74 | ||||||||||||
| 2000 | 0.00 | 3.65 | b | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 1.28 | 0.00 | 0.01 | 4.96 | ||||||||||||
| 2001 | 4.03 | 3.47 | 1.13 | 1.33 | 0.00 | 0.00 | 0.38 | 0.00 | 0.00 | 0.00 | 0.50 | 0.32 | c | 11.16 | ||||||||||||
| 2002 | 0.40 | 0.00 | 0.31 | 0.52 | 0.00 | 0.00 | 0.00 | 0.00 | 0.74 | a | 0.00 | 2.84 | 0.00 | z | 4.81 | |||||||||||
| 2003 | 0.00 | 2.04 | 0.36 | b | 1.37 | 0.16 | a | 0.07 | 0.78 | a | 0.01 | 0.00 | 0.00 | 2.04 | a | 0.59 | 7.42 | |||||||||
| 2004 | 0.01 | 3.47 | a | 0.34 | 0.12 | f | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.22 | 0.40 | 3.28 | 12.72 | |||||||||||
| 2005 | 4.11 | 4.42 | b | 2.10 | 0.85 | a | 0.06 | 0.00 | 0.28 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.35 | 12.17 | |||||||
| 2006 | 0.62 | 0.00 | z | 0.00 | z | 1.90 | 0.72 | 0.00 | 0.19 | 0.10 | 0.00 | 0.00 | z | 0.00 | 0.00 | z | 3.53 | |||||||||
| 2007 | 0.88 | 2.14 | 0.00 | z | 0.50 | 0.00 | z | 0.00 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.80 | 1.91 | 6.23 | |||||||
| 2008 | 4.41 | 2.20 | a | 0.00 | z | 0.00 | 0.41 | a | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.00 | 5.38 | 14.40 | ||||||||||
| 2009 | 0.02 | 3.54 | 0.24 | 0.10 | 0.00 | 0.12 | 0.00 | z | 0.00 | 0.00 | 0.01 | 0.70 | 3.01 | 7.74 | ||||||||||||
| 2010 | 4.59 | 3.39 | 0.90 | 2.09 | 0.10 | 0.00 | 0.00 | 0.00 | 0.28 | 2.54 | 1.27 | 7.85 | 23.01 | |||||||||||||
| 2011 | 0.74 | 3.80 | 2.07 | 0.49 | d | 0.43 | 0.05 | 0.00 | 0.00 | 0.10 | 0.44 | 3.36 | b | 0.98 | 12.46 | |||||||||||
| 2012 | 0.58 | 1.56 | 2.14 | 1.54 | 0.08 | 0.00 | 0.00 | 0.01 | 0.00 | 0.43 | 0.42 | 2.61 | 9.37 | |||||||||||||
| 2013 | 1.69 | 1.10 | 1.35 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 4.14 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 2.35 | 2.70 | 2.27 | 0.84 | 0.17 | 0.07 | 0.09 | 0.02 | 0.14 | 0.62 | 1.31 | 1.73 | 12.25 | |||||||||||||
| S.D. | 2.62 | 2.13 | 2.61 | 0.66 | 0.27 | 0.19 | 0.20 | 0.04 | 0.26 | 1.11 | 1.60 | 1.82 | 7.27 | |||||||||||||
| SKEW | 1.80 | 1.60 | 1.50 | 0.64 | 2.25 | 3.42 | 2.61 | 2.13 | 1.73 | 2.88 | 2.16 | 1.78 | 0.40 | |||||||||||||
| MAX | 11.43 | 10.35 | 9.66 | 2.42 | 1.21 | 0.91 | 0.78 | 0.13 | 0.86 | 5.22 | 7.21 | 7.85 | 23.15 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 1.51 | |||||||||||||
| NO YRS | 33 | 32 | 30 | 30 | 32 | 30 | 30 | 30 | 27 | 28 | 32 | 29 | 16 | |||||||||||||