| 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 | 0.90 | 3.91 | 3.30 | 4.93 | 13.04 | |||||
| 1980 | 9.16 | 4.96 | 1.93 | a | 2.74 | 0.24 | 1.65 | 0.00 | 0.32 | 0.23 | 0.33 | 6.34 | 11.76 | 39.66 | ||||||||||||
| 1981 | 2.20 | 5.21 | 0.31 | a | 0.66 | 1.21 | 2.26 | 0.10 | 0.00 | 2.03 | 3.24 | 4.66 | 11.04 | 32.92 | ||||||||||||
| 1982 | 6.56 | a | 7.26 | 2.87 | 2.75 | 0.27 | 0.75 | 0.03 | 0.30 | 2.89 | 4.82 | 4.14 | 7.92 | 40.56 | ||||||||||||
| 1983 | 6.67 | 7.64 | 8.57 | 0.79 | 0.24 | 0.31 | 0.77 | 1.14 | 1.05 | 1.13 | 11.01 | 6.14 | a | 45.46 | ||||||||||||
| 1984 | 2.48 | 3.73 | 3.25 | 3.09 | 2.45 | 0.74 | 0.00 | 0.00 | 1.14 | 1.69 | 8.78 | b | 2.46 | 29.81 | ||||||||||||
| 1985 | 0.10 | 2.67 | 2.37 | 0.67 | 0.26 | 1.85 | 0.03 | 0.34 | 1.48 | 1.64 | 3.34 | a | 2.83 | 17.58 | ||||||||||||
| 1986 | 8.37 | 7.30 | 1.83 | 0.53 | 0.10 | 0.10 | 0.10 | 0.15 | 2.00 | 1.60 | 4.51 | 2.71 | 29.30 | |||||||||||||
| 1987 | 6.27 | 2.21 | 4.48 | 0.94 | 1.02 | 0.08 | 1.49 | 0.00 | 0.05 | 0.07 | 2.20 | 9.74 | 28.55 | |||||||||||||
| 1988 | 5.19 | 1.04 | a | 2.73 | 1.90 | 0.92 | 1.26 | 0.07 | 0.00 | 0.30 | 0.06 | 9.45 | 2.25 | 25.17 | ||||||||||||
| 1989 | 3.68 | 2.62 | 4.88 | 1.93 | 0.95 | 0.39 | 0.18 | 0.71 | 0.43 | 1.07 | 2.61 | 3.07 | 22.52 | |||||||||||||
| 1990 | 9.06 | 2.98 | a | 1.63 | 1.66 | 1.64 | 0.74 | 0.12 | 0.21 | 0.04 | 2.48 | 2.07 | b | 2.55 | 25.18 | |||||||||||
| 1991 | 3.03 | 4.10 | 4.29 | 2.41 | a | 0.95 | 0.58 | 0.03 | a | 0.10 | a | 0.03 | 1.49 | 4.97 | 3.02 | a | 25.00 | |||||||||
| 1992 | 3.73 | 4.31 | a | 0.93 | 2.43 | 0.00 | 0.24 | a | 0.80 | 0.13 | 2.70 | 1.25 | 4.39 | a | 5.55 | 26.46 | ||||||||||
| 1993 | 4.46 | 0.76 | 3.39 | 2.13 | c | 1.09 | 0.74 | 0.94 | l | 0.00 | 0.00 | 0.36 | a | 0.00 | d | 4.92 | a | 17.85 | ||||||||
| 1994 | 3.61 | 4.48 | 1.59 | 0.18 | a | 1.50 | 2.11 | 0.00 | 0.00 | 0.23 | 5.93 | a | 5.68 | 4.82 | a | 30.13 | ||||||||||
| 1995 | 0.00 | z | 4.43 | b | 5.51 | 1.19 | 2.17 | 0.49 | 0.90 | 0.00 | z | 1.68 | 1.97 | 7.68 | 6.31 | 32.33 | ||||||||||
| 1996 | 6.43 | 0.00 | z | 1.50 | 5.85 | b | 1.79 | 0.27 | 0.00 | 0.00 | 0.70 | 3.13 | 6.55 | a | 17.24 | 43.46 | ||||||||||
| 1997 | 7.66 | a | 1.89 | 4.24 | a | 1.62 | a | 1.59 | 0.20 | a | 0.25 | 0.29 | c | 2.16 | 6.46 | 3.10 | 2.86 | 32.32 | ||||||||
| 1998 | 9.73 | b | 2.93 | 3.00 | 1.44 | 2.80 | 0.76 | 0.34 | 0.00 | 0.87 | b | 1.06 | 10.13 | 10.65 | 43.71 | |||||||||||
| 1999 | 6.64 | a | 12.85 | 3.02 | 0.05 | 0.00 | 0.00 | 0.02 | 0.84 | 0.00 | b | 1.95 | 5.64 | 3.05 | 34.06 | |||||||||||
| 2000 | 7.45 | b | 5.60 | 1.20 | 0.26 | 1.29 | 0.95 | 0.00 | 0.00 | 0.50 | 1.27 | 0.86 | 1.39 | b | 20.77 | |||||||||||
| 2001 | 1.63 | b | 1.47 | a | 1.45 | 0.70 | 1.52 | 1.67 | 0.48 | 0.89 | c | 0.20 | a | 1.45 | a | 6.72 | a | 8.31 | h | 18.18 | ||||||
| 2002 | 6.49 | a | 4.89 | b | 4.52 | 1.28 | 0.57 | a | 1.07 | 0.27 | 0.00 | b | 0.14 | 0.10 | 1.34 | 9.42 | a | 30.09 | ||||||||
| 2003 | 8.83 | 0.93 | 6.56 | 2.67 | 0.00 | z | 0.00 | 0.00 | 0.31 | 0.23 | a | 3.96 | 2.20 | a | 0.00 | z | 25.69 | |||||||||
| 2004 | 0.00 | z | 0.00 | z | 1.47 | a | 0.33 | a | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 2.10 | c | 0.00 | z | 0.00 | z | 3.90 | |
| 2005 | 0.00 | z | 0.00 | z | 2.82 | 1.79 | 2.86 | 0.46 | 0.15 | 0.01 | b | 0.26 | 2.50 | 4.73 | 8.65 | a | 24.23 | |||||||||
| 2006 | 11.72 | 3.37 | 2.06 | d | 1.77 | 1.28 | 1.33 | 0.08 | 0.00 | 0.11 | 0.43 | 14.40 | a | 5.52 | e | 42.07 | ||||||||||
| 2007 | 2.60 | a | 4.73 | a | 1.79 | 0.98 | 0.46 | a | 0.26 | 0.08 | 0.83 | 0.69 | 2.74 | 6.26 | 9.84 | 31.26 | ||||||||||
| 2008 | 4.98 | 1.67 | a | 2.05 | 0.62 | a | 0.55 | 0.75 | 0.07 | 0.79 | 0.29 | 1.97 | 4.79 | 5.65 | f | 18.53 | ||||||||||
| 2009 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.70 | 2.10 | 3.80 | a | 2.13 | f | 6.60 | |||
| 2010 | 2.25 | a | 2.10 | a | 1.30 | 1.20 | 0.50 | b | 0.80 | 0.00 | 0.00 | 1.65 | a | 1.65 | e | 1.70 | a | 6.35 | 19.50 | |||||||
| 2011 | 1.65 | a | 2.15 | a | 6.00 | 0.30 | h | 0.60 | j | 0.00 | a | 0.30 | c | 0.00 | a | 0.00 | c | 0.41 | 1.77 | 0.63 | 12.91 | |||||
| 2012 | 4.29 | 1.40 | 2.59 | 0.00 | j | 1.25 | b | 1.10 | 0.00 | a | 0.00 | 0.00 | r | 0.00 | z | 0.00 | z | 0.00 | z | 10.63 | ||||||
| 2013 | 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 | 0.00 | z | 0.00 | z | 0.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 5.41 | 3.85 | 3.00 | 1.55 | 1.09 | 0.77 | 0.22 | 0.25 | 0.80 | 2.01 | 4.97 | 5.99 | 30.55 | |||||||||||||
| S.D. | 2.89 | 2.59 | 1.84 | 1.18 | 0.80 | 0.63 | 0.35 | 0.34 | 0.84 | 1.59 | 3.22 | 3.89 | 7.85 | |||||||||||||
| SKEW | 0.19 | 1.54 | 1.12 | 1.60 | 0.61 | 0.80 | 2.20 | 1.26 | 1.04 | 1.15 | 0.95 | 0.94 | 0.34 | |||||||||||||
| MAX | 11.72 | 12.85 | 8.57 | 5.85 | 2.86 | 2.26 | 1.49 | 1.14 | 2.89 | 6.46 | 14.40 | 17.24 | 45.46 | |||||||||||||
| MIN | 0.10 | 0.76 | 0.31 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | 0.63 | 17.58 | |||||||||||||
| NO YRS | 29 | 29 | 32 | 30 | 29 | 31 | 30 | 30 | 32 | 33 | 32 | 28 | 22 | |||||||||||||