YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.57 | a | 73.87 | ----- | z | ----- | z | ----- | z | 80.22 | j | |
1982 | 42.52 | 45.07 | a | 54.35 | 59.30 | 68.93 | b | 77.76 | e | 81.23 | a | 83.52 | b | 73.78 | c | 59.45 | b | 41.43 | 37.03 | 60.36 | ||||||
1983 | 44.32 | 43.56 | a | 53.23 | a | 60.79 | b | 73.10 | b | 72.36 | e | 75.42 | e | 78.39 | c | 66.24 | a | 57.45 | 48.73 | 31.42 | 58.75 | |||||
1984 | 42.23 | 43.97 | 53.10 | 54.03 | 60.32 | 68.47 | 82.16 | 80.71 | 69.34 | a | 55.32 | 45.07 | 38.16 | 57.74 | ||||||||||||
1985 | 32.26 | 43.64 | 52.03 | a | 61.23 | 65.48 | 73.00 | 85.35 | 76.73 | a | 65.90 | 59.19 | 37.33 | 28.55 | 56.73 | |||||||||||
1986 | 41.52 | 44.21 | 56.27 | a | 57.30 | 66.20 | a | 77.10 | a | 73.77 | 85.35 | 66.73 | 65.32 | 49.36 | b | 37.03 | a | 60.01 | ||||||||
1987 | 37.57 | c | 44.26 | a | 50.68 | 63.40 | 68.93 | a | 76.77 | 75.68 | 80.71 | 77.80 | 70.65 | 50.43 | 38.97 | 61.32 | ||||||||||
1988 | 38.00 | 50.34 | 53.06 | 59.57 | 64.07 | a | 71.07 | a | 80.84 | 80.13 | 74.47 | 69.04 | e | 48.67 | 42.80 | a | 61.00 | |||||||||
1989 | 46.34 | b | 36.44 | c | 48.72 | b | 63.11 | b | 65.53 | a | 75.23 | 75.58 | 75.35 | 76.03 | 61.77 | 52.07 | a | 42.15 | d | 59.86 | ||||||
1990 | 44.67 | a | 45.22 | e | 55.23 | 63.90 | 63.29 | 71.28 | a | 84.23 | a | 81.97 | a | 79.67 | 59.46 | c | 52.19 | c | 34.68 | f | 63.74 | a | ||||
1991 | 42.50 | c | 51.72 | c | 49.97 | a | 57.61 | b | 60.74 | 67.27 | 81.45 | 82.52 | 78.23 | 64.70 | a | 48.52 | c | 41.93 | d | 60.60 | ||||||
1992 | 44.74 | 48.24 | 58.87 | 60.67 | 71.71 | 78.67 | 79.45 | 81.93 | a | 70.40 | 63.90 | 46.96 | d | 38.28 | f | 64.14 | a | |||||||||
1993 | 34.86 | c | 37.68 | 50.24 | b | 56.14 | a | 70.10 | a | 69.89 | b | 70.29 | 77.81 | 78.00 | 66.90 | 46.70 | 38.81 | 58.12 | ||||||||
1994 | 48.97 | 41.68 | 55.81 | 61.07 | 68.23 | 71.30 | 84.55 | 79.39 | 79.33 | 62.06 | 43.83 | 41.19 | 61.45 | |||||||||||||
1995 | 39.26 | 51.26 | a | 52.45 | 57.07 | 67.73 | a | 70.47 | 79.35 | 75.94 | 77.20 | 59.84 | 54.03 | a | 39.90 | 60.38 | ||||||||||
1996 | 43.13 | a | 42.68 | a | 53.03 | 60.00 | 61.19 | 72.66 | a | 85.29 | 81.77 | a | 71.33 | 61.35 | 46.90 | a | 41.29 | c | 60.05 | |||||||
1997 | 41.14 | b | 48.00 | 52.70 | a | 57.69 | a | 71.61 | 74.07 | 82.00 | 85.00 | 77.53 | 63.48 | 51.43 | 44.16 | 62.40 | ||||||||||
1998 | 44.07 | d | 47.73 | b | 58.00 | ----- | z | ----- | z | 75.07 | c | 84.26 | 83.94 | 78.70 | 60.30 | a | 49.79 | b | 43.81 | e | 62.57 | b | ||||
1999 | 49.08 | f | 46.52 | e | 51.38 | b | 61.20 | e | 64.25 | c | 70.85 | d | 81.77 | e | 81.36 | c | 76.30 | 63.29 | 50.17 | a | 44.74 | d | 62.89 | a | ||
2000 | 39.52 | b | 44.69 | 52.37 | a | 64.33 | c | 65.17 | a | 75.66 | a | 79.40 | a | 79.17 | a | 73.70 | c | 60.58 | 42.29 | b | 38.52 | f | 61.53 | a | ||
2001 | 39.83 | b | 45.56 | c | 54.53 | a | 57.77 | 71.39 | 69.89 | b | 77.42 | 81.35 | 76.57 | 61.37 | a | 49.55 | a | 40.21 | b | 60.45 | ||||||
2002 | 42.41 | b | 48.96 | b | 50.93 | d | 59.69 | a | 64.93 | a | 74.40 | 83.50 | a | 79.77 | a | 74.57 | 63.69 | b | 48.53 | 40.36 | c | 60.98 | ||||
2003 | 44.00 | d | 50.22 | e | 54.79 | b | 56.70 | 66.97 | a | 77.86 | b | 84.87 | 81.77 | 77.43 | 66.45 | b | 46.11 | b | 40.15 | d | 62.28 | |||||
2004 | 37.63 | d | 46.72 | d | 58.87 | a | 64.93 | 66.26 | 75.40 | 83.63 | a | 82.52 | b | 70.90 | 63.70 | a | 52.11 | b | 44.31 | b | 62.25 | |||||
2005 | 44.46 | c | 51.68 | c | 59.59 | b | 58.77 | 67.37 | a | 70.28 | a | 82.04 | c | 83.33 | a | 73.54 | b | 61.66 | b | 46.63 | c | 36.96 | c | 61.36 | ||
2006 | 44.78 | d | 47.04 | e | 51.23 | a | 60.30 | ----- | z | 74.53 | 85.11 | d | 81.07 | b | 76.79 | a | 62.94 | 47.29 | f | 38.47 | a | 62.23 | b | |||
2007 | 40.17 | b | 46.35 | b | 57.64 | c | 59.52 | c | 70.83 | b | 72.07 | b | 83.53 | a | 79.11 | c | 74.12 | e | 60.32 | c | 49.80 | e | 41.00 | a | 61.21 | |
2008 | 39.78 | d | 49.93 | 50.45 | 55.03 | a | 68.93 | d | 74.15 | c | 83.00 | b | 81.00 | d | 76.43 | 62.03 | a | 52.04 | c | 42.16 | f | 62.98 | a | |||
2009 | 43.12 | e | 43.21 | 47.72 | b | 58.59 | a | 71.25 | c | 74.60 | 85.68 | 81.84 | 76.52 | a | 58.74 | 49.00 | 35.84 | 60.51 | ||||||||
2010 | 43.19 | 47.75 | 53.97 | 56.34 | a | 61.97 | 70.04 | b | 81.13 | 79.33 | a | 68.50 | 59.19 | 43.87 | 35.87 | 58.43 | ||||||||||
2011 | 43.26 | 43.39 | 44.94 | 49.57 | 59.52 | 68.10 | 75.06 | 80.17 | a | 76.87 | 57.94 | 46.23 | 41.23 | 57.19 | ||||||||||||
2012 | 40.55 | 42.48 | 46.55 | 56.07 | 62.03 | 67.37 | 79.13 | 82.65 | 77.07 | 59.03 | 45.10 | 38.29 | 58.03 | |||||||||||||
2013 | 35.65 | 46.43 | 52.61 | 57.50 | 67.37 | a | 73.40 | 84.97 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.70 | e | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.50 | 45.83 | 52.98 | 59.01 | 66.51 | 72.84 | 80.97 | 81.00 | 74.50 | 61.97 | 47.83 | 39.43 | 60.06 | |||||||||||||
S.D. | 3.55 | 3.65 | 3.52 | 3.27 | 3.78 | 3.15 | 3.95 | 2.58 | 3.90 | 3.39 | 3.68 | 3.74 | 1.63 | |||||||||||||
SKEW | -0.56 | -0.47 | -0.07 | -0.44 | -0.14 | 0.01 | -0.90 | -0.15 | -0.86 | 0.60 | -0.79 | -1.04 | -0.52 | |||||||||||||
MAX | 48.97 | 51.72 | 59.59 | 64.93 | 73.10 | 78.67 | 85.68 | 86.57 | 79.67 | 70.65 | 54.03 | 44.74 | 62.40 | |||||||||||||
MIN | 32.26 | 36.44 | 44.94 | 49.57 | 59.52 | 67.27 | 70.29 | 75.35 | 65.90 | 55.32 | 37.33 | 28.55 | 56.73 | |||||||||||||
YRS | 31 | 32 | 32 | 31 | 30 | 32 | 32 | 32 | 32 | 31 | 30 | 27 | 24 |