| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1991 | ----- | z | ----- | z | ----- | z | ----- | z | 49.05 | 54.22 | 66.53 | 68.15 | 60.97 | 50.34 | 41.10 | a | 35.58 | 53.24 | ||||||||
| 1992 | 37.15 | 41.67 | 44.56 | 49.30 | 57.10 | 63.70 | 64.85 | 67.15 | 58.12 | 52.40 | 38.62 | 29.61 | 50.35 | |||||||||||||
| 1993 | 22.85 | 26.80 | 41.94 | 44.92 | 55.73 | 56.07 | 57.92 | 62.06 | 59.45 | 52.10 | 33.02 | 34.29 | 45.60 | |||||||||||||
| 1994 | 39.65 | 34.46 | 43.13 | 47.85 | 54.71 | 59.30 | 68.73 | 67.31 | r | 61.50 | 47.13 | 33.98 | 34.73 | 47.74 | ||||||||||||
| 1995 | 33.98 | 42.71 | 39.39 | 43.85 | 51.94 | 57.08 | 65.05 | 62.08 | 61.65 | 47.94 | 44.17 | 34.08 | 48.66 | |||||||||||||
| 1996 | 36.42 | 34.36 | 40.66 | 47.30 | ----- | z | 57.07 | 68.82 | 66.97 | 56.38 | 49.08 | 41.05 | 35.55 | 48.51 | ||||||||||||
| 1997 | 33.94 | 35.84 | 43.19 | 43.87 | 56.40 | 56.78 | 64.26 | 67.74 | 59.70 | 47.84 | ----- | z | 33.89 | 49.40 | ||||||||||||
| 1998 | 36.61 | 37.96 | ----- | z | 44.78 | ----- | z | 58.17 | ----- | z | 67.45 | 68.57 | w | 46.68 | 39.97 | 31.45 | b | 45.38 | ||||||||
| 1999 | 36.52 | 36.16 | 38.42 | a | ----- | z | 48.23 | 56.72 | 63.40 | 65.07 | a | 56.27 | 50.32 | a | 44.77 | 32.69 | 48.05 | |||||||||
| 2000 | 32.31 | 37.66 | 40.29 | 48.40 | a | 52.80 | a | 60.17 | 64.27 | 65.08 | 57.23 | 46.89 | 33.90 | f | 33.03 | b | 48.92 | |||||||||
| 2001 | 32.37 | a | 33.00 | a | 41.95 | 42.75 | 55.72 | a | 56.53 | a | 64.15 | 68.32 | a | 62.10 | 50.61 | 41.02 | b | 32.24 | b | 48.40 | ||||||
| 2002 | 33.81 | 38.39 | 37.50 | 46.28 | 51.84 | ----- | z | 69.53 | 64.55 | 60.21 | a | 46.16 | 40.42 | 35.02 | 47.61 | |||||||||||
| 2003 | 39.85 | ----- | z | 44.44 | 43.75 | 52.50 | 62.63 | 72.08 | 68.50 | ----- | z | 54.50 | 35.40 | 34.23 | 50.79 | |||||||||||
| 2004 | 32.74 | 36.00 | 45.79 | 46.78 | 50.77 | 58.92 | 66.56 | 66.84 | 56.08 | 48.94 | 38.93 | ----- | z | 49.85 | ||||||||||||
| 2005 | 33.81 | 35.39 | 42.61 | 43.78 | 52.68 | 53.78 | ----- | z | 65.15 | 55.05 | 49.26 | 36.33 | 29.90 | 45.25 | ||||||||||||
| 2006 | 36.47 | 32.46 | 36.39 | 44.85 | 51.89 | 59.25 | 68.13 | 62.68 | 57.85 | 46.53 | 38.52 | ----- | z | 48.64 | ||||||||||||
| 2007 | 29.95 | 37.02 | 44.02 | a | 43.03 | 52.16 | 57.65 | 68.71 | ----- | z | 55.87 | 46.87 | 38.68 | 31.97 | 45.99 | |||||||||||
| 2008 | 29.15 | 35.98 | 36.74 | 39.13 | 50.98 | a | 55.68 | 65.47 | 65.13 | 57.37 | ----- | z | 43.28 | 28.15 | 46.10 | |||||||||||
| 2009 | 32.74 | 34.79 | 35.52 | 41.92 | 52.61 | 58.15 | 67.76 | 65.76 | 61.16 | e | 43.74 | 39.28 | 26.94 | 46.70 | ||||||||||||
| 2010 | 36.39 | 35.79 | 38.18 | 41.25 | 46.89 | 54.88 | 64.40 | 63.42 | 57.93 | 49.56 | 36.53 | 33.05 | 46.52 | |||||||||||||
| 2011 | 35.13 | 31.54 | 39.11 | 39.17 | 45.83 | b | 54.72 | 61.45 | 65.71 | 62.15 | 48.05 | 36.82 | 33.74 | 46.12 | ||||||||||||
| 2012 | 35.19 | 34.76 | 38.79 | 45.82 | b | 49.60 | 55.05 | 65.03 | 67.78 | a | 60.77 | 49.21 | 41.05 | a | 32.21 | 47.94 | ||||||||||
| 2013 | 30.31 | 35.57 | 40.06 | 49.25 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.50 | z | 35.31 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 33.97 | 35.63 | 40.60 | 44.44 | 51.97 | 57.45 | 65.86 | 65.78 | 58.89 | 48.77 | 39.15 | 32.62 | 47.53 | |||||||||||||
| S.D. | 3.76 | 3.34 | 2.97 | 2.80 | 3.06 | 2.59 | 3.15 | 2.06 | 2.34 | 2.45 | 3.16 | 2.40 | 1.59 | |||||||||||||
| SKEW | -1.02 | -0.27 | 0.03 | -0.22 | -0.20 | 0.81 | -0.41 | -0.45 | -0.06 | 0.36 | -0.12 | -0.91 | 0.48 | |||||||||||||
| MAX | 39.85 | 42.71 | 45.79 | 49.30 | 57.10 | 63.70 | 72.08 | 68.50 | 62.15 | 54.50 | 44.77 | 35.58 | 50.35 | |||||||||||||
| MIN | 22.85 | 26.80 | 35.52 | 39.13 | 45.83 | 53.78 | 57.92 | 62.06 | 55.05 | 43.74 | 33.02 | 26.94 | 45.60 | |||||||||||||
| NO YRS | 22 | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 21 | 20 | 20 | 8 | |||||||||||||