YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | 90.32 | 99.80 | 99.71 | 98.84 | 95.10 | 86.50 | a | 71.55 | a | 63.65 | 88.18 | d | ||||||
1983 | 67.16 | 66.61 | 70.42 | 76.89 | b | 90.94 | 98.73 | 102.16 | 98.03 | 95.80 | 82.32 | 71.27 | 67.97 | 82.36 | ||||||||||||
1984 | 65.90 | 70.89 | a | 78.97 | a | 81.59 | a | 97.42 | 98.88 | d | 97.06 | 96.81 | e | 95.10 | 80.61 | 74.10 | a | 64.00 | c | 83.45 | ||||||
1985 | 63.17 | b | 67.63 | a | 74.77 | 86.60 | 92.30 | a | 101.77 | 100.90 | 98.93 | a | 91.60 | 84.40 | a | 72.30 | 69.00 | 83.61 | ||||||||
1986 | 75.03 | 72.18 | 79.58 | 85.48 | a | 94.16 | 101.38 | a | 99.35 | 99.45 | 94.67 | 85.00 | 74.17 | a | 65.74 | 85.52 | ||||||||||
1987 | 68.00 | a | 68.04 | a | 73.68 | 86.97 | 90.06 | 102.73 | 102.77 | 99.06 | 94.20 | 89.84 | 73.20 | 63.61 | 84.35 | |||||||||||
1988 | 65.16 | 73.10 | 77.29 | 82.63 | 92.19 | 102.23 | 101.58 | 97.48 | 95.30 | 88.74 | 74.37 | 66.71 | 84.73 | |||||||||||||
1989 | 64.94 | 73.46 | 82.26 | 91.43 | 95.53 | a | 102.23 | 103.87 | 98.77 | 98.90 | a | 85.67 | a | 76.20 | 67.13 | 86.70 | ||||||||||
1990 | 65.52 | 67.57 | 76.53 | a | 85.50 | 91.55 | 105.03 | a | 97.77 | 95.32 | 95.93 | c | 88.21 | b | 76.15 | d | 63.48 | 84.05 | ||||||||
1991 | 64.39 | 74.19 | b | 70.52 | 82.37 | 91.55 | 98.24 | a | 100.29 | 99.06 | 94.30 | 88.84 | 73.33 | 65.39 | 83.54 | |||||||||||
1992 | 63.29 | 69.41 | 72.42 | 86.40 | 90.52 | 100.03 | 100.29 | 98.42 | 98.30 | 89.84 | 72.20 | 64.16 | 83.77 | |||||||||||||
1993 | 66.68 | 65.74 | a | 75.55 | 84.60 | 93.50 | a | 101.43 | 100.32 | 97.94 | 96.00 | 85.81 | 72.30 | 67.90 | 83.98 | |||||||||||
1994 | 69.27 | a | 68.89 | 77.23 | 84.30 | 90.97 | a | 104.13 | 103.61 | 101.35 | 96.27 | 83.52 | 69.87 | 64.97 | 84.53 | |||||||||||
1995 | 64.13 | 74.25 | 75.42 | 81.17 | 87.68 | 99.30 | 103.45 | 100.68 | 96.53 | 90.57 | a | 79.10 | 69.29 | 85.13 | ||||||||||||
1996 | 71.57 | a | 73.64 | a | 77.68 | 86.87 | 96.87 | 103.93 | 103.29 | 100.97 | 92.37 | 86.70 | a | 77.93 | 71.03 | 86.90 | ||||||||||
1997 | 65.71 | 71.32 | 82.68 | 82.10 | 96.81 | 100.37 | 103.35 | 100.65 | 99.10 | 87.47 | a | 77.17 | 62.16 | 85.74 | ||||||||||||
1998 | 69.45 | 63.64 | 74.61 | 77.77 | 90.77 | 100.31 | a | 101.68 | 101.97 | 99.17 | 89.35 | 79.33 | 68.68 | 84.73 | ||||||||||||
1999 | 73.21 | b | 76.68 | 80.71 | 79.80 | 92.48 | 100.30 | 98.19 | 100.03 | 97.13 | 93.23 | 85.00 | 68.61 | 87.11 | ||||||||||||
2000 | 73.52 | 76.03 | 76.29 | 89.31 | a | 99.13 | 100.77 | 103.84 | 99.58 | 100.66 | a | 82.39 | 67.62 | a | 71.81 | 86.74 | ||||||||||
2001 | 64.84 | 69.61 | 77.29 | 84.73 | 98.23 | 103.57 | 100.71 | 101.55 | 100.63 | 90.17 | a | 78.43 | 66.50 | a | 86.35 | |||||||||||
2002 | 68.61 | 75.25 | 78.00 | 89.24 | a | 94.60 | a | 105.67 | 101.97 | 101.55 | 97.10 | 85.37 | a | 78.30 | 65.10 | 86.73 | ||||||||||
2003 | 76.16 | 68.79 | 75.48 | 82.67 | 94.97 | a | 102.57 | 104.97 | 100.10 | 98.17 | 91.81 | 74.73 | 70.87 | 86.77 | ||||||||||||
2004 | 67.00 | 67.03 | 82.42 | 81.39 | b | 94.74 | 101.57 | 101.77 | 99.68 | 96.30 | 84.58 | 71.10 | a | 67.65 | 84.60 | |||||||||||
2005 | 68.03 | 66.11 | 73.97 | a | 85.34 | a | 94.55 | 101.63 | 105.48 | 97.32 | 99.00 | 88.61 | 80.43 | 73.07 | a | 86.13 | ||||||||||
2006 | 72.03 | 75.29 | 74.35 | 86.45 | a | 96.29 | 103.97 | 102.47 | a | 97.13 | 92.80 | 85.77 | ----- | z | 67.84 | 86.76 | a | |||||||||
2007 | 64.93 | a | 72.89 | 80.39 | 85.47 | 94.90 | 103.10 | 101.52 | 99.94 | 98.03 | 89.52 | 82.38 | a | 63.90 | a | 86.41 | ||||||||||
2008 | 65.10 | 71.17 | 78.10 | 86.67 | 91.43 | a | 104.23 | 99.26 | 98.87 | 97.24 | a | 89.77 | 78.72 | a | 69.17 | b | 85.81 | |||||||||
2009 | 71.35 | 74.68 | 79.74 | 84.43 | 95.68 | c | 98.28 | a | ----- | z | 103.16 | 97.93 | a | 87.32 | c | ----- | z | ----- | z | 88.06 | c | |||||
2010 | 65.29 | x | ----- | z | 73.45 | 81.87 | 91.13 | 102.33 | 101.52 | 100.45 | 99.23 | 86.23 | 73.37 | 71.23 | 88.08 | b | ||||||||||
2011 | 66.74 | 67.79 | 81.00 | 85.67 | 89.90 | 103.10 | 101.35 | 102.29 | 97.00 | 88.55 | 73.07 | a | 61.19 | 84.80 | ||||||||||||
2012 | 70.60 | a | 70.66 | 77.17 | a | 86.67 | c | 95.52 | 104.00 | 98.52 | 100.29 | 95.33 | u | ----- | z | ----- | z | ----- | z | 87.93 | d | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 67.98 | 70.78 | 76.93 | 84.41 | 93.44 | 101.79 | 101.43 | 99.54 | 96.66 | 87.22 | 75.28 | 66.96 | 85.18 | |||||||||||||
S.D. | 3.61 | 3.52 | 3.30 | 3.27 | 2.83 | 2.03 | 2.11 | 1.76 | 2.30 | 2.95 | 3.98 | 3.06 | 1.32 | |||||||||||||
SKEW | 0.69 | -0.09 | -0.06 | -0.29 | 0.12 | -0.08 | -0.17 | -0.17 | -0.30 | -0.24 | 0.45 | 0.10 | -0.18 | |||||||||||||
MAX | 76.16 | 76.68 | 82.68 | 91.43 | 99.13 | 105.67 | 105.48 | 103.16 | 100.66 | 93.23 | 85.00 | 73.07 | 87.11 | |||||||||||||
MIN | 63.17 | 63.64 | 70.42 | 76.89 | 87.68 | 98.24 | 97.06 | 95.32 | 91.60 | 80.61 | 67.62 | 61.19 | 82.36 | |||||||||||||
YRS | 29 | 29 | 30 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 28 | 29 | 26 |