| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1983 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.94 | 1.08 | 1.20 | 0.37 | 0.96 | 1.56 | 1.92 | 1.92 | ||||||||
| 1984 | 0.73 | 3.44 | 1.76 | 2.18 | 1.33 | 0.78 | 0.09 | 0.16 | 0.52 | 2.07 | 3.39 | 1.24 | 3.44 | |||||||||||||
| 1985 | 0.28 | 2.03 | 1.38 | 0.62 | 0.62 | 2.55 | 0.14 | 0.16 | 0.71 | 2.06 | 1.63 | 1.07 | 2.55 | |||||||||||||
| 1986 | 1.43 | 2.52 | 1.46 | 1.17 | 1.01 | 0.66 | 0.66 | 0.03 | 1.38 | 1.02 | 2.88 | 1.33 | 2.88 | |||||||||||||
| 1987 | 1.12 | 2.25 | 1.62 | 1.25 | 1.14 | 0.23 | 0.49 | 0.18 | 0.09 | 0.23 | 1.88 | 3.22 | 3.22 | |||||||||||||
| 1988 | 3.00 | 1.03 | 0.87 | 1.12 | 1.02 | 0.78 | 0.28 | 0.03 | 0.86 | 0.22 | 2.00 | 1.11 | 3.00 | |||||||||||||
| 1989 | 1.88 | 1.67 | 2.11 | 0.46 | 1.12 | 0.59 | 0.68 | 0.98 | 0.22 | 1.22 | 1.11 | 0.99 | 2.11 | |||||||||||||
| 1990 | 2.51 | 1.63 | 1.37 | 2.06 | 1.03 | 0.98 | 0.21 | 0.43 | 0.04 | 2.07 | 1.49 | 1.12 | 2.51 | |||||||||||||
| 1991 | 1.07 | 1.68 | 2.21 | 2.18 | 2.56 | 0.53 | 0.11 | 0.56 | 0.12 | 1.73 | 1.60 | 1.77 | 2.56 | |||||||||||||
| 1992 | 1.11 | 1.82 | 0.50 | 1.95 | 0.08 | 0.16 | 0.20 | 0.25 | 0.50 | 0.93 | 1.25 | 1.87 | 1.95 | |||||||||||||
| 1993 | 2.75 | 1.20 | 3.20 | 2.19 | 0.57 | 1.22 | 1.24 | 0.25 | 0.05 | 0.47 | A | 0.71 | 3.26 | 3.26 | ||||||||||||
| 1994 | 1.63 | 1.06 | 1.03 | 0.78 | 0.60 | 1.37 | 0.10 | 0.09 | 0.83 | 1.90 | 2.20 | 2.04 | 2.20 | |||||||||||||
| 1995 | 2.17 | 0.71 | 1.76 | 1.71 | 1.17 | 0.96 | 0.07 | 0.30 | 1.20 | A | 3.06 | b | 1.58 | A | 2.37 | 3.06 | ||||||||||
| 1996 | 0.86 | 2.33 | a | 0.73 | 1.32 | f | 1.14 | A | 0.57 | 0.46 | 0.08 | 2.00 | 1.17 | A | 5.30 | 2.36 | 5.30 | |||||||||
| 1997 | 3.19 | 0.63 | 1.10 | 1.05 | 0.82 | 0.57 | A | 0.63 | A | 0.50 | 1.49 | 1.97 | 2.66 | 1.03 | 3.19 | |||||||||||
| 1998 | 1.14 | 1.20 | 3.04 | 0.49 | 1.86 | 0.50 | 9999.00 | z | 0.03 | 0.21 | 1.32 | 2.78 | 3.00 | 3.04 | ||||||||||||
| 1999 | 1.47 | 2.04 | 1.03 | 0.80 | 1.09 | 0.61 | 0.08 | 0.63 | 0.02 | 1.70 | 2.67 | 1.20 | 2.67 | |||||||||||||
| 2000 | 2.00 | 1.48 | 0.91 | f | 0.66 | d | 0.92 | h | 1.28 | d | 0.22 | b | 0.12 | b | 0.68 | d | 1.80 | i | 1.58 | f | 1.26 | f | 2.00 | |||
| 2001 | 0.82 | h | 0.91 | A | 1.22 | h | 0.85 | e | 1.10 | b | 0.96 | f | 0.51 | b | 0.60 | 0.13 | 1.44 | A | 2.11 | j | 2.14 | A | 2.11 | |||
| 2002 | 3.44 | A | 1.58 | h | 1.13 | f | 2.11 | b | 0.72 | d | 0.82 | b | 0.95 | d | 0.12 | 1.24 | d | 0.47 | h | 3.05 | i | 8.19 | A | 3.05 | ||
| 2003 | 2.36 | A | 2.13 | d | 9999.00 | z | 1.96 | A | 1.13 | A | 0.15 | b | 0.00 | 0.10 | 0.73 | A | 0.80 | d | 1.67 | A | 5.86 | A | 2.13 | |||
| 2004 | 2.20 | A | 2.07 | A | 1.22 | d | 0.91 | A | 0.48 | A | 1.07 | A | 0.02 | 1.21 | A | 3.17 | A | 1.62 | A | 1.70 | f | 1.57 | A | 1.70 | ||
| 2005 | 2.08 | A | 0.71 | A | 2.23 | A | 1.27 | A | 3.03 | A | 1.65 | A | 0.37 | A | 0.03 | A | 0.96 | A | 1.72 | A | 2.32 | A | 2.73 | A | 9999.00 | |
| 2006 | 4.51 | A | 1.23 | A | 1.44 | h | 2.46 | A | 1.10 | A | 0.96 | d | 0.13 | 0.01 | 0.63 | A | 0.46 | A | 4.40 | A | 5.00 | A | 1.44 | |||
| 2007 | 3.26 | A | 3.07 | A | 1.53 | A | 0.80 | A | 1.18 | b | 0.50 | A | 0.44 | A | 0.63 | A | 0.82 | A | 1.74 | d | 4.01 | A | 3.96 | A | 1.74 | |
| 2008 | 2.81 | A | 2.29 | A | 1.08 | A | 1.26 | A | 0.52 | A | 0.96 | A | 0.24 | A | 1.25 | A | 0.59 | b | 1.96 | A | 1.72 | A | 3.46 | A | 0.59 | |
| 2009 | 1.15 | f | 2.14 | A | 1.80 | g | 0.97 | d | 1.08 | A | 0.88 | c | 0.12 | A | 0.40 | A | 0.96 | A | 1.61 | A | 2.13 | A | 2.13 | A | 1.80 | |
| 2010 | 2.73 | A | 1.20 | e | 2.55 | A | 2.27 | A | 1.07 | A | 1.39 | d | 0.20 | 0.64 | A | 1.53 | A | 1.82 | A | 1.89 | A | 2.51 | A | 1.39 | ||
| 2011 | 5.13 | j | 2.29 | h | 1.73 | h | 0.94 | i | 0.92 | i | 1.15 | h | 0.23 | j | 0.03 | h | 0.48 | h | 0.95 | j | 1.76 | h | 2.31 | h | 5.13 | |
| 2012 | 3.15 | i | 1.26 | h | 2.01 | e | 3.59 | i | 1.28 | 0.92 | 0.25 | c | 0.18 | h | 0.08 | A | 2.42 | A | 2.85 | A | 3.34 | n | 3.59 | |||
| 2013 | 2.10 | A | 1.32 | A | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1.69 | 1.67 | 1.61 | 1.28 | 1.05 | 0.86 | 0.35 | 0.35 | 0.74 | 1.46 | 2.20 | 1.82 | 2.73 | |||||||||||||
| S.D. | 0.82 | 0.68 | 0.73 | 0.63 | 0.51 | 0.48 | 0.34 | 0.35 | 0.73 | 0.75 | 1.06 | 0.79 | 0.48 | |||||||||||||
| SKEW | 0.27 | 0.70 | 0.66 | 0.38 | 1.06 | 1.49 | 1.24 | 1.22 | 1.58 | -0.04 | 1.31 | 0.67 | -0.14 | |||||||||||||
| MAX | 3.19 | 3.44 | 3.20 | 2.19 | 2.56 | 2.55 | 1.24 | 1.21 | 3.17 | 3.06 | 5.30 | 3.26 | 3.44 | |||||||||||||
| MIN | 0.28 | 0.63 | 0.50 | 0.46 | 0.08 | 0.15 | 0.00 | 0.01 | 0.02 | 0.22 | 0.71 | 0.99 | 1.95 | |||||||||||||
| NO YRS | 18 | 20 | 19 | 20 | 21 | 26 | 26 | 26 | 26 | 22 | 18 | 17 | 13 | |||||||||||||