| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.43 | 62.90 | a | 41.63 | 40.65 | 54.90 | ||||
| 1980 | 30.74 | 37.24 | 46.13 | 58.55 | a | 65.20 | a | 66.63 | 79.29 | 76.35 | 71.50 | 62.74 | 46.30 | 42.97 | 56.97 | |||||||||||
| 1981 | 38.74 | 42.79 | 53.35 | 56.20 | 63.52 | 66.83 | 76.97 | 84.32 | 71.50 | 58.45 | 48.43 | 37.40 | a | 58.21 | ||||||||||||
| 1982 | 37.35 | 41.14 | 49.74 | 52.67 | 64.74 | 75.90 | 77.29 | 78.94 | 70.03 | 56.35 | 42.03 | 36.61 | 56.90 | |||||||||||||
| 1983 | 41.48 | 43.50 | 50.55 | 57.63 | 69.10 | 69.03 | 72.45 | 79.42 | 67.37 | 60.35 | 44.90 | 28.48 | 57.02 | |||||||||||||
| 1984 | 40.19 | 42.97 | 51.77 | 52.60 | 60.10 | 68.10 | 81.71 | 80.32 | 67.93 | 54.74 | 42.30 | 34.84 | 56.46 | |||||||||||||
| 1985 | 30.55 | 39.50 | 49.58 | 59.43 | 67.87 | 72.83 | 85.71 | 76.97 | 66.40 | 58.39 | 34.53 | 25.32 | 55.59 | |||||||||||||
| 1986 | 38.97 | 42.32 | 56.00 | 56.67 | 65.32 | 78.30 | 75.94 | 86.23 | 67.20 | 65.32 | 46.27 | 34.26 | 59.40 | |||||||||||||
| 1987 | 34.48 | 44.25 | 49.52 | 63.20 | 68.29 | 76.13 | 76.13 | 80.29 | 77.50 | 68.81 | 50.00 | 34.16 | 60.23 | |||||||||||||
| 1988 | 34.90 | 49.17 | 51.03 | 59.00 | 63.71 | 70.23 | 79.13 | 79.87 | 73.73 | 70.39 | 46.17 | 38.35 | 59.64 | |||||||||||||
| 1989 | 42.06 | 34.21 | 44.58 | 60.67 | 65.45 | 74.00 | 76.48 | 75.68 | 75.80 | 59.45 | 49.10 | 39.58 | 58.09 | |||||||||||||
| 1990 | 40.71 | 40.93 | 52.94 | 61.73 | 63.00 | 69.87 | 82.65 | 80.77 | 79.60 | 57.06 | 49.03 | 32.52 | 59.23 | |||||||||||||
| 1991 | 39.65 | 49.93 | 45.61 | 54.93 | 60.58 | 66.47 | 81.81 | 81.97 | 77.53 | 62.48 | 45.57 | 38.74 | 58.77 | |||||||||||||
| 1992 | 40.29 | 47.41 | 57.90 | 58.13 | 72.03 | 78.97 | 79.10 | 82.03 | 69.07 | 62.23 | 43.87 | 35.10 | 60.51 | |||||||||||||
| 1993 | 29.65 | 36.11 | 48.00 | 53.23 | 69.10 | 68.90 | a | 69.71 | 76.97 | 75.50 | 66.45 | 44.13 | 36.03 | 56.15 | ||||||||||||
| 1994 | 46.68 | 38.36 | 53.71 | 60.30 | 67.65 | 70.27 | 84.58 | 79.90 | 79.03 | 59.90 | 41.23 | 37.94 | 59.96 | |||||||||||||
| 1995 | ----- | z | 49.00 | 49.87 | 55.47 | 67.65 | 71.97 | 77.52 | ----- | z | 75.53 | 58.00 | 50.03 | 36.26 | 59.13 | |||||||||||
| 1996 | 39.23 | ----- | z | 49.84 | 55.60 | 59.65 | 72.03 | 82.81 | 80.58 | 68.67 | 59.39 | 44.80 | 35.45 | 58.91 | ||||||||||||
| 1997 | 36.55 | 41.79 | 47.87 | 54.27 | 68.42 | 69.63 | 78.16 | 82.26 | 72.47 | 57.65 | 47.80 | 39.58 | 58.04 | |||||||||||||
| 1998 | 38.68 | 43.32 | 50.77 | 57.80 | 62.23 | 71.60 | 84.55 | 83.10 | 78.30 | 59.42 | 45.87 | 37.90 | 59.46 | |||||||||||||
| 1999 | 42.48 | 40.00 | 48.06 | 55.97 | a | 61.45 | 70.07 | 78.32 | 80.32 | 74.43 | 61.13 | 49.53 | 40.90 | 58.56 | ||||||||||||
| 2000 | 35.19 | 39.86 | 48.39 | 61.20 | 63.10 | 73.17 | 77.97 | 79.74 | 69.86 | a | 58.58 | 40.87 | 33.32 | 56.77 | ||||||||||||
| 2001 | 36.19 | 40.39 | 52.10 | 54.70 | 68.55 | 69.03 | 78.81 | 81.84 | 76.93 | 59.65 | 47.93 | 36.87 | 58.58 | |||||||||||||
| 2002 | 37.90 | 45.25 | 45.71 | 56.60 | 63.13 | 73.63 | 82.58 | 80.03 | 74.37 | 62.32 | 47.87 | 37.23 | 58.88 | |||||||||||||
| 2003 | 40.19 | 46.21 | 50.58 | 54.80 | ----- | z | 76.13 | 85.77 | 83.19 | 76.63 | 66.10 | 46.20 | ----- | z | 62.58 | |||||||||||
| 2004 | 34.74 | ----- | z | 56.42 | 62.20 | 64.96 | g | ----- | z | ----- | z | ----- | z | ----- | z | 62.94 | ----- | z | 41.61 | 51.58 | ||||||
| 2005 | 39.81 | ----- | z | 48.90 | u | 56.10 | 65.29 | 68.93 | 81.74 | 84.13 | 72.93 | 62.29 | 45.93 | 38.52 | 61.57 | |||||||||||
| 2006 | 49.68 | 45.04 | 52.94 | 60.07 | 68.65 | 74.60 | 83.61 | 81.71 | 76.40 | 61.48 | 48.43 | 38.87 | 61.79 | |||||||||||||
| 2007 | 36.87 | 44.07 | 55.00 | 58.03 | 68.81 | 71.23 | 83.71 | 78.65 | 72.00 | 57.65 | 46.17 | 37.42 | 59.13 | |||||||||||||
| 2008 | 35.90 | 46.62 | 47.84 | 53.73 | 66.19 | 69.07 | 78.61 | 77.87 | 74.60 | 59.06 | 52.45 | s | ----- | z | 60.95 | |||||||||||
| 2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.38 | i | 57.90 | 48.20 | 36.06 | 47.39 | ||||
| 2010 | 40.06 | 47.79 | 53.48 | 55.47 | 59.54 | r | 68.67 | 83.16 | 82.64 | t | 73.23 | 69.78 | h | 49.13 | 36.71 | 56.41 | ||||||||||
| 2011 | 41.48 | b | 42.89 | a | 43.42 | 52.30 | 65.03 | a | 72.60 | 80.06 | 87.53 | a | 82.87 | 58.13 | 50.87 | 43.42 | 60.05 | |||||||||
| 2012 | 39.45 | 41.38 | 45.94 | 54.83 | 64.03 | a | 71.83 | 83.93 | a | 90.00 | 80.33 | r | ----- | z | ----- | z | ----- | z | 61.42 | |||||||
| 2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 38.42 | 42.88 | 50.28 | 57.00 | 65.44 | 71.51 | 80.01 | 81.07 | 73.66 | 60.87 | 45.97 | 36.87 | 58.52 | |||||||||||||
| S.D. | 4.22 | 3.92 | 3.60 | 2.98 | 3.12 | 3.29 | 3.81 | 3.26 | 4.07 | 3.59 | 3.49 | 3.76 | 1.55 | |||||||||||||
| SKEW | 0.17 | -0.12 | 0.14 | 0.33 | -0.05 | 0.54 | -0.58 | 0.79 | 0.02 | 0.87 | -1.20 | -0.97 | -0.04 | |||||||||||||
| MAX | 49.68 | 49.93 | 57.90 | 63.20 | 72.03 | 78.97 | 85.77 | 90.00 | 82.87 | 70.39 | 50.87 | 43.42 | 61.79 | |||||||||||||
| MIN | 29.65 | 34.21 | 43.42 | 52.30 | 59.65 | 66.47 | 69.71 | 75.68 | 66.40 | 54.74 | 34.53 | 25.32 | 55.59 | |||||||||||||
| NO YRS | 31 | 29 | 31 | 32 | 29 | 31 | 31 | 29 | 31 | 32 | 31 | 31 | 24 | |||||||||||||