| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1973 | ----- | z | ----- | z | ----- | z | ----- | z | 78.29 | 83.07 | 92.77 | 88.35 | 78.37 | 65.26 | 47.23 | 44.13 | 72.18 | |||||||||
| 1974 | 37.87 | 47.07 | 51.48 | 59.55 | a | ----- | z | 87.60 | 88.12 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.72 | |||||
| 1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.65 | 77.17 | 63.48 | 45.23 | 38.83 | a | 61.07 | |||||
| 1994 | 45.68 | 43.57 | 57.03 | 63.53 | 69.35 | 81.23 | 90.81 | 89.58 | 79.77 | 62.29 | 40.70 | 36.55 | 63.34 | |||||||||||||
| 1995 | 40.84 | 56.00 | 51.29 | 56.27 | 64.81 | 74.17 | 85.03 | 85.81 | 79.83 | 65.13 | 58.03 | 39.68 | 63.07 | |||||||||||||
| 1996 | 42.71 | 43.79 | 55.00 | 59.30 | 66.29 | 78.70 | 90.06 | 87.58 | 73.87 | 63.45 | 51.90 | 44.48 | 63.10 | |||||||||||||
| 1997 | 41.35 | 45.29 | 56.29 | 55.97 | 73.97 | 76.47 | 85.55 | 86.68 | 77.23 | 62.39 | 52.43 | 39.06 | 62.72 | |||||||||||||
| 1998 | 46.74 | 42.89 | 52.84 | 55.97 | 60.58 | 71.60 | 90.84 | 88.61 | 78.07 | 60.35 | 46.87 | 36.81 | 61.01 | |||||||||||||
| 1999 | 44.35 | 43.68 | 50.90 | 55.10 | 66.26 | 77.63 | 87.23 | 85.16 | 76.50 | 69.81 | 57.45 | a | 43.52 | 63.13 | ||||||||||||
| 2000 | 42.32 | 47.76 | 52.19 | 65.23 | 70.23 | 82.40 | 89.03 | 89.65 | 75.31 | a | 63.23 | 42.17 | 42.35 | 63.49 | ||||||||||||
| 2001 | 36.97 | 42.62 | l | 54.32 | 55.37 | 76.13 | 79.63 | 86.68 | 90.26 | 80.13 | 68.19 | 51.90 | 38.84 | 65.31 | ||||||||||||
| 2002 | 40.10 | 45.14 | 50.16 | 62.17 | 66.86 | c | 80.59 | c | 92.55 | 84.78 | h | 77.83 | 61.03 | b | 51.80 | 45.90 | 61.29 | |||||||||
| 2003 | 47.90 | 45.39 | 55.48 | 54.93 | 67.77 | 82.14 | h | 94.96 | e | 86.35 | k | 79.27 | 70.92 | f | 44.47 | 42.55 | 59.19 | |||||||||
| 2004 | 36.83 | g | 41.76 | 60.10 | 61.63 | 68.13 | 80.12 | e | 89.29 | g | 82.17 | m | 75.40 | 64.09 | h | 46.70 | g | 41.95 | l | 64.52 | ||||||
| 2005 | 37.90 | j | 47.22 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.77 | 50.27 | 39.10 | 52.05 | ||||
| 2006 | 44.10 | 45.89 | 46.84 | 57.40 | 72.42 | 83.27 | 94.58 | 87.10 | 79.63 | 66.23 | 50.70 | 41.26 | 64.12 | |||||||||||||
| 2007 | 40.32 | 48.96 | 60.17 | b | 61.10 | 75.26 | 82.67 | 94.97 | 90.39 | 77.10 | 62.23 | 53.67 | 36.94 | 65.31 | ||||||||||||
| 2008 | 34.97 | 46.07 | 52.00 | 58.03 | 68.58 | 79.37 | 91.48 | 89.97 | ----- | z | 67.66 | b | 55.87 | 41.13 | 62.28 | |||||||||||
| 2009 | 43.55 | 45.07 | 52.11 | l | 59.60 | 73.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.48 | |||||
| 2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.25 | z | 79.97 | 65.77 | 47.40 | 41.19 | 58.58 | |||||
| 2011 | 40.42 | 44.39 | 50.10 | 53.41 | c | 61.23 | 72.00 | a | 86.93 | b | 89.83 | b | 84.21 | a | 67.15 | d | 48.00 | d | 43.59 | b | 61.77 | |||||
| 2012 | 44.32 | 46.44 | d | 53.61 | 63.50 | 70.35 | 78.27 | 91.32 | 91.50 | a | 83.57 | 69.72 | f | 53.00 | 40.26 | 65.10 | ||||||||||
| 2013 | 30.29 | 45.21 | 56.16 | 69.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.89 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 41.38 | 45.80 | 53.67 | 58.78 | 69.46 | 79.34 | 90.30 | 88.07 | 78.51 | 64.73 | 49.95 | 40.85 | 63.11 | |||||||||||||
| S.D. | 4.35 | 3.09 | 3.51 | 3.49 | 4.88 | 4.16 | 3.29 | 2.75 | 2.65 | 2.69 | 4.85 | 2.75 | 1.17 | |||||||||||||
| SKEW | -0.85 | 2.02 | 0.23 | 0.27 | -0.04 | -0.25 | -0.11 | -1.31 | 0.46 | 0.13 | -0.17 | 0.07 | 0.05 | |||||||||||||
| MAX | 47.90 | 56.00 | 60.17 | 65.23 | 78.29 | 87.60 | 94.97 | 91.50 | 84.21 | 69.81 | 58.03 | 45.90 | 65.31 | |||||||||||||
| MIN | 30.29 | 41.76 | 46.84 | 53.41 | 60.58 | 71.60 | 85.03 | 80.65 | 73.87 | 60.35 | 40.70 | 36.55 | 61.01 | |||||||||||||
| NO YRS | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 15 | 18 | 17 | 19 | 19 | 10 | |||||||||||||