YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 90.28 | b | 88.33 | a | 95.66 | a | 81.63 | a | 76.00 | ----- | z | 86.38 | g | |
1980 | ----- | z | 72.75 | a | 69.48 | 75.90 | 70.90 | a | 86.10 | 93.94 | 91.06 | ----- | z | 84.58 | 79.10 | 76.06 | 79.99 | b | ||||||||
1981 | 72.16 | 74.68 | 68.81 | 74.72 | a | 78.55 | 91.07 | 91.90 | a | 94.61 | 90.03 | 79.97 | 77.50 | 74.23 | 80.69 | |||||||||||
1982 | 65.87 | h | 70.24 | c | 68.44 | f | 73.86 | a | 74.38 | g | 75.88 | e | 90.54 | e | ----- | z | 89.17 | f | 86.80 | f | 72.75 | f | 68.52 | f | 77.63 | h |
1983 | 71.47 | a | 69.09 | e | 67.62 | b | 70.48 | a | 78.56 | d | 80.38 | d | 91.19 | d | 95.67 | d | 93.04 | g | 85.13 | h | 74.70 | g | 69.12 | e | 77.06 | c |
1984 | 72.89 | c | 73.52 | f | 77.56 | d | 76.12 | e | 86.32 | c | 84.33 | c | 93.52 | d | 91.10 | b | 96.29 | f | 81.16 | f | ----- | z | 65.61 | c | 80.93 | d |
1985 | 66.29 | ----- | z | 68.48 | d | 78.00 | c | 78.35 | e | 87.37 | c | 94.00 | e | 93.33 | d | 84.05 | h | 82.54 | e | 71.08 | f | 73.42 | g | 81.05 | d | |
1986 | 74.81 | e | 71.68 | f | 72.12 | f | 75.31 | d | 80.36 | c | 85.70 | c | 88.33 | d | 94.00 | c | 81.33 | f | 81.52 | f | 79.08 | d | 71.22 | d | 81.10 | d |
1987 | 68.42 | e | 69.54 | d | 70.52 | d | 82.00 | e | 78.69 | e | 83.56 | c | 84.81 | e | 87.63 | d | 88.81 | d | 83.52 | f | 74.08 | f | 65.15 | d | 77.91 | b |
1988 | 70.71 | g | 76.04 | f | 77.38 | e | 76.50 | l | 81.00 | g | 81.80 | e | 88.65 | e | 87.50 | a | 86.31 | d | 82.72 | f | 74.36 | h | 68.12 | g | 84.33 | g |
1989 | 68.58 | e | 69.05 | h | 77.21 | g | 80.04 | f | 80.04 | g | 83.00 | g | 90.11 | c | 87.07 | a | 92.05 | h | 82.04 | g | 78.80 | e | 76.43 | h | 81.14 | h |
1990 | 69.83 | h | 69.68 | f | 72.72 | f | 75.20 | e | 79.91 | i | 88.96 | g | 93.64 | f | 88.77 | e | 91.22 | g | 88.83 | g | 78.32 | h | 70.67 | d | 78.21 | i |
1991 | 71.21 | g | 78.18 | f | 66.15 | e | 75.00 | e | 77.20 | f | 79.65 | d | 84.93 | c | 88.03 | b | 87.52 | e | 85.82 | i | 79.15 | c | 68.88 | f | 80.06 | e |
1992 | 71.80 | f | 71.68 | d | 67.85 | d | 81.00 | f | 80.56 | d | 85.61 | g | 91.25 | g | 96.12 | e | 94.04 | b | 82.26 | h | 77.32 | e | 66.26 | h | 81.26 | f |
1993 | 66.00 | i | 66.09 | e | 72.83 | g | 78.68 | e | 81.27 | i | 85.38 | d | 84.07 | c | 87.72 | f | 91.91 | g | 86.67 | p | 77.09 | h | ----- | z | 78.56 | h |
1994 | 76.86 | i | 68.68 | f | 73.84 | f | 75.52 | g | 75.32 | f | 89.71 | f | 88.86 | c | 96.52 | 92.20 | 81.71 | 71.40 | 70.00 | a | 83.45 | f | ||||
1995 | 66.26 | 74.26 | e | 71.90 | a | 76.00 | 74.08 | e | 84.00 | h | 93.46 | c | 97.23 | 93.68 | b | 86.87 | 82.12 | e | 72.64 | i | 81.59 | b | ||||
1996 | 73.91 | h | 71.86 | a | 75.09 | h | 83.30 | c | 83.57 | j | 89.21 | b | 93.79 | b | 96.00 | e | 90.04 | g | 82.33 | j | 78.78 | c | 73.00 | a | 83.71 | e |
1997 | 69.96 | f | 73.58 | i | 82.58 | g | 79.85 | c | 88.86 | b | 84.00 | c | 89.21 | c | 94.93 | d | 96.96 | c | 84.86 | c | 80.12 | e | 70.83 | a | 85.51 | c |
1998 | 68.96 | f | 66.29 | 72.05 | i | 72.92 | d | 75.09 | i | 82.04 | f | 92.12 | e | 96.46 | e | 88.44 | e | 83.00 | g | 75.96 | f | 71.39 | h | 83.25 | g | |
1999 | 73.70 | d | 70.96 | d | 68.93 | a | 72.48 | a | 77.92 | f | 83.15 | c | 89.73 | a | 91.61 | 86.87 | 93.46 | c | 78.80 | 76.80 | a | 80.59 | a | |||
2000 | 74.94 | 72.14 | a | 73.03 | 80.50 | 83.36 | c | 88.73 | 91.55 | 93.16 | 90.52 | a | 79.04 | d | 74.97 | a | 75.65 | 81.46 | ||||||||
2001 | 68.27 | a | 67.11 | 71.45 | 71.76 | a | 82.00 | 88.00 | b | 88.00 | 91.68 | 89.70 | 84.37 | d | 75.59 | a | 69.10 | a | 78.92 | |||||||
2002 | 70.90 | 76.50 | 72.93 | d | 74.45 | a | 78.32 | 83.79 | a | 87.32 | 87.10 | a | 90.04 | c | 76.15 | e | 80.58 | d | 69.81 | 78.99 | ||||||
2003 | 80.30 | a | 70.62 | d | 73.80 | a | 73.75 | f | 77.87 | 78.55 | a | 90.47 | a | 92.94 | 89.93 | 88.89 | l | 73.53 | 70.52 | 79.85 | b | |||||
2004 | 73.13 | a | 69.75 | a | 80.15 | d | 78.90 | a | 83.19 | 81.92 | e | 89.00 | a | 88.39 | 91.64 | b | 79.00 | b | 73.20 | 73.41 | b | 80.14 | ||||
2005 | 69.93 | b | 68.48 | a | 72.16 | 76.76 | a | 80.61 | 81.00 | a | 90.11 | d | 90.96 | c | 87.45 | a | 82.56 | f | 79.93 | 74.69 | b | 79.28 | a | |||
2006 | 74.33 | a | 76.67 | a | 67.03 | a | 73.17 | 78.83 | b | 89.27 | d | 95.14 | b | 90.07 | d | 90.62 | a | 80.73 | a | 80.56 | c | 74.39 | 80.90 | |||
2007 | 70.04 | f | 71.96 | b | 78.97 | a | 76.14 | b | 79.86 | b | 86.21 | b | 89.48 | 92.00 | 86.77 | d | 85.25 | c | 75.87 | 68.47 | a | 81.00 | a | |||
2008 | 67.06 | 70.52 | h | 77.83 | g | 79.36 | e | 75.53 | a | 88.08 | d | 87.29 | 90.03 | a | 90.43 | 91.10 | b | 81.13 | 69.07 | a | 81.91 | b | ||||
2009 | 77.26 | 71.04 | 75.90 | 77.27 | 81.33 | a | 80.52 | a | 92.17 | a | 92.97 | a | 95.11 | b | 85.48 | 80.76 | a | 69.16 | 81.58 | |||||||
2010 | 73.13 | a | 71.48 | a | 75.26 | 72.21 | a | 76.97 | 79.94 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.81 | g | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 71.78 | 71.10 | 72.16 | 76.17 | 79.67 | 84.32 | 90.14 | 91.91 | 90.61 | 83.55 | 77.92 | 71.28 | 80.38 | |||||||||||||
S.D. | 3.79 | 2.91 | 4.13 | 3.23 | 3.93 | 3.86 | 2.85 | 3.21 | 3.06 | 4.48 | 2.86 | 3.25 | 1.09 | |||||||||||||
SKEW | 0.33 | 0.16 | 0.39 | 0.37 | 0.19 | -0.23 | -0.31 | 0.02 | 0.51 | 0.60 | -0.68 | -0.02 | -0.38 | |||||||||||||
MAX | 80.30 | 76.67 | 80.15 | 83.30 | 88.86 | 91.07 | 95.14 | 97.23 | 96.96 | 93.46 | 82.12 | 76.80 | 81.58 | |||||||||||||
MIN | 66.26 | 66.09 | 66.15 | 70.48 | 70.90 | 75.88 | 84.07 | 87.07 | 86.31 | 76.15 | 71.40 | 65.15 | 78.92 | |||||||||||||
YRS | 19 | 21 | 21 | 26 | 21 | 24 | 29 | 29 | 21 | 16 | 22 | 21 | 7 |