| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1988 | 0.00 | z | 0.00 | z | 0.00 | z | 1.66 | 1.39 | p | 0.78 | b | 0.35 | 0.27 | 0.04 | 0.02 | 4.76 | 0.90 | 8.78 | ||||||||
| 1989 | 0.70 | 0.47 | 4.00 | 1.17 | 0.57 | n | 0.12 | 0.00 | z | 0.78 | 0.91 | 1.45 | 0.57 | 0.48 | 10.65 | |||||||||||
| 1990 | 3.21 | 0.24 | 1.13 | 1.23 | 2.16 | 0.07 | 0.11 | 0.00 | z | 0.29 | 0.75 | 0.59 | 0.42 | 10.20 | ||||||||||||
| 1991 | 0.47 | 0.76 | 2.59 | 1.15 | 1.40 | 0.68 | w | 0.00 | z | 0.17 | 0.10 | 0.56 | 1.18 | 0.80 | 9.18 | |||||||||||
| 1992 | 0.64 | x | 0.82 | 0.56 | 0.94 | 0.00 | z | 0.78 | 0.21 | 0.21 | 0.00 | z | 1.60 | 1.02 | 1.86 | 8.00 | ||||||||||
| 1993 | 3.11 | a | 1.41 | 2.51 | 2.22 | a | 2.23 | 1.16 | 0.49 | 1.67 | d | 0.54 | 1.38 | a | 0.76 | 1.31 | 18.79 | |||||||||
| 1994 | 0.33 | 1.12 | 0.36 | 0.66 | 0.97 | b | 0.39 | 0.05 | 0.00 | 0.30 | 0.28 | 1.47 | 0.57 | 6.50 | ||||||||||||
| 1995 | 4.26 | 0.54 | 3.94 | 3.64 | 0.54 | b | 2.78 | 0.84 | 0.00 | 0.00 | 0.00 | 1.15 | 6.23 | a | 23.92 | |||||||||||
| 1996 | 3.00 | 2.19 | b | 2.08 | 1.48 | 2.85 | c | 0.29 | e | 0.00 | z | 0.00 | z | 0.00 | z | 0.34 | h | 3.02 | 7.37 | i | 14.91 | |||||
| 1997 | 2.95 | a | 1.12 | c | 0.43 | c | 1.66 | a | 0.90 | l | 0.74 | z | 0.98 | 0.00 | z | 1.19 | p | 0.00 | z | 0.00 | z | 0.00 | z | 7.14 | ||
| 1998 | 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 | |
| 1999 | 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 | |
| 2000 | 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 | |
| 2001 | 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 | |
| 2002 | 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 | |
| 2003 | 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 | |
| 2004 | 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 | |
| 2005 | 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 | |
| 2006 | 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 | |
| 2007 | 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 | |
| 2008 | 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 | |
| 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 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2010 | 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 | |
| 2011 | 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 | |
| 2012 | 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 | 0.53 | m | 0.44 | b | 0.44 | |
| 2013 | 0.48 | w | 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 | 0.02 | z | 0.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 2.25 | 0.96 | 1.96 | 1.58 | 1.69 | 0.80 | 0.43 | 0.44 | 0.31 | 0.75 | 1.61 | 1.45 | 16.40 | |||||||||||||
| S.D. | 1.51 | 0.59 | 1.43 | 0.84 | 0.87 | 0.88 | 0.36 | 0.60 | 0.32 | 0.65 | 1.39 | 1.86 | 8.95 | |||||||||||||
| SKEW | -0.27 | 0.89 | 0.27 | 1.51 | -0.04 | 1.54 | 0.50 | 1.39 | 0.89 | 0.13 | 1.51 | 2.19 | -0.45 | |||||||||||||
| MAX | 4.26 | 2.19 | 4.00 | 3.64 | 2.85 | 2.78 | 0.98 | 1.67 | 0.91 | 1.60 | 4.76 | 6.23 | 23.92 | |||||||||||||
| MIN | 0.33 | 0.24 | 0.36 | 0.66 | 0.54 | 0.07 | 0.05 | 0.00 | 0.00 | 0.00 | 0.57 | 0.42 | 6.50 | |||||||||||||
| NO YRS | 8 | 9 | 9 | 10 | 6 | 8 | 7 | 7 | 7 | 8 | 9 | 9 | 3 | |||||||||||||