YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1990 | ----- | z | 60.61 | 73.81 | 82.17 | 86.63 | a | 98.52 | a | 103.26 | 99.87 | 94.93 | 83.32 | 67.90 | 53.00 | 82.18 | a | |||||||||
1991 | 57.55 | b | ----- | z | 63.45 | ----- | z | 83.00 | 93.71 | b | 104.13 | a | 100.97 | 95.17 | ----- | z | ----- | z | 58.71 | 82.09 | d | |||||
1992 | 57.67 | a | 65.43 | a | 67.61 | 83.27 | 90.10 | 97.31 | a | 101.16 | 103.06 | 97.63 | 85.32 | 64.97 | a | 53.83 | a | 80.61 | ||||||||
1993 | 55.13 | 59.57 | 72.93 | c | 80.70 | 89.52 | 95.80 | 102.43 | a | 102.38 | e | 95.63 | c | 83.35 | 65.00 | 59.37 | a | 80.15 | ||||||||
1994 | 63.45 | 58.81 | b | 74.90 | 79.50 | b | 88.20 | a | 104.28 | a | 106.47 | a | 105.55 | 96.00 | b | 79.19 | 60.50 | 58.37 | a | 81.27 | ||||||
1995 | 54.97 | a | 71.32 | 68.86 | b | 76.59 | a | 82.65 | 94.11 | b | 105.14 | b | 105.10 | b | ----- | z | 84.59 | b | 75.63 | 62.60 | f | 81.89 | b | |||
1996 | 63.52 | 68.54 | a | 74.29 | c | 83.38 | d | 92.10 | b | 103.04 | b | 107.77 | a | 105.90 | a | 94.34 | a | 82.37 | a | 69.00 | b | 58.65 | 83.57 | |||
1997 | 58.93 | a | 64.38 | b | 77.26 | 79.00 | b | 95.32 | 97.64 | b | 102.23 | 103.23 | a | 93.52 | a | 81.55 | 69.67 | 57.40 | a | 81.68 | ||||||
1998 | 60.94 | 58.70 | a | 70.50 | c | 73.17 | 82.97 | 92.54 | b | 105.00 | b | 104.67 | a | 92.48 | a | 78.87 | a | 67.41 | a | 59.65 | 78.91 | |||||
1999 | 63.70 | a | 64.93 | 74.03 | 72.77 | d | 87.10 | b | 98.54 | b | 99.79 | c | 101.48 | d | 96.10 | 87.29 | c | 74.00 | e | 62.33 | a | 81.84 | ||||
2000 | 63.24 | f | 64.81 | b | 69.73 | a | 84.07 | b | 95.29 | c | 102.25 | b | 106.32 | f | 104.48 | b | 96.70 | c | 80.68 | 62.86 | b | 63.78 | d | 82.47 | b | |
2001 | 58.15 | d | 60.57 | e | 73.70 | d | 76.84 | e | 96.34 | b | 101.33 | f | 106.19 | e | 106.46 | g | 99.93 | b | 87.11 | d | 72.00 | h | 56.69 | e | 79.50 | c |
2002 | ----- | z | 64.91 | f | 72.04 | h | 85.53 | k | 90.33 | g | 103.35 | j | 109.33 | m | 106.36 | c | 96.83 | f | 82.52 | d | 71.19 | d | 59.18 | c | 79.81 | h |
2003 | 67.90 | 63.25 | 71.47 | a | 76.24 | e | 90.21 | g | 100.86 | i | 108.56 | f | 102.38 | e | 98.96 | c | 90.66 | b | 63.59 | c | 58.86 | b | 77.04 | c | ||
2004 | 59.45 | b | 59.41 | b | 80.11 | c | 81.04 | e | 90.58 | g | 101.35 | d | 104.88 | g | 102.45 | 95.48 | a | 79.84 | 65.86 | a | 58.97 | 78.40 | b | |||
2005 | 60.23 | 62.96 | 71.48 | b | 78.46 | f | 90.08 | e | 97.41 | a | 107.97 | a | 101.62 | g | 94.00 | e | 82.00 | a | 72.34 | a | 60.33 | a | 79.88 | b | ||
2006 | 62.43 | c | 67.04 | e | 67.45 | 77.91 | h | 94.20 | a | 103.93 | b | 107.03 | 104.22 | d | 93.86 | i | 82.57 | j | 72.67 | l | 58.89 | d | 83.15 | d | ||
2007 | 59.12 | g | 71.50 | t | 77.65 | n | 82.74 | c | 93.60 | a | 102.03 | a | 108.25 | k | 103.52 | f | 97.79 | f | 83.71 | n | 74.05 | h | 54.68 | f | 92.79 | i |
2008 | 56.14 | c | 65.50 | o | 74.56 | f | 80.29 | m | 89.07 | p | 101.86 | p | 107.00 | q | 106.10 | u | 96.80 | o | 86.36 | i | 72.93 | a | 56.25 | k | 64.54 | j |
2009 | 63.79 | l | 62.33 | d | 71.14 | c | 81.11 | c | 96.28 | f | 94.48 | c | 106.76 | b | 103.14 | b | 100.11 | k | 81.96 | c | 72.68 | b | 56.23 | e | 81.09 | c |
2010 | 58.38 | e | 62.14 | f | 69.52 | f | 74.67 | c | 82.46 | g | 100.08 | f | 106.89 | d | 103.34 | b | 98.60 | j | 81.92 | g | 66.60 | e | 60.69 | b | 78.43 | f |
2011 | 59.64 | c | 61.55 | f | 71.50 | g | 78.00 | c | 81.92 | e | 97.62 | f | 103.57 | h | 106.17 | h | 96.04 | d | 84.28 | b | 66.29 | b | 57.92 | e | 74.87 | e |
2012 | 63.03 | 65.31 | 73.04 | c | 82.30 | 92.14 | c | 102.30 | 104.69 | e | 104.31 | b | 98.32 | e | 84.10 | b | 73.32 | e | 60.43 | c | 83.61 | |||||
2013 | 57.52 | f | 63.75 | d | 78.88 | n | 83.38 | f | 92.30 | a | 104.40 | e | 107.14 | i | 103.43 | j | 92.17 | f | 80.41 | n | 73.91 | s | 58.15 | k | 86.82 | i |
2014 | 67.41 | i | 68.96 | e | 76.64 | i | 81.46 | b | 91.45 | i | 101.11 | c | 105.48 | j | 100.92 | g | 98.08 | d | 86.74 | d | 70.62 | d | 60.41 | d | 81.05 | e |
2015 | 62.58 | g | 73.08 | d | 79.86 | c | 82.24 | i | 82.65 | e | 103.39 | g | 99.88 | n | 104.53 | l | 98.57 | i | 83.68 | l | 66.67 | f | 57.76 | j | 78.53 | i |
2016 | 58.71 | g | 69.24 | 77.65 | 79.27 | 84.23 | 104.93 | 107.00 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.06 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.07 | 64.43 | 72.66 | 79.41 | 89.02 | 99.48 | 104.81 | 103.50 | 96.08 | 83.46 | 68.62 | 58.75 | 81.45 | |||||||||||||
S.D. | 3.42 | 4.14 | 4.20 | 3.43 | 4.87 | 3.98 | 2.45 | 1.75 | 2.01 | 3.04 | 4.17 | 2.47 | 1.61 | |||||||||||||
SKEW | 0.44 | 0.39 | -0.09 | -0.53 | -0.10 | -0.25 | -0.55 | -0.25 | 0.19 | 0.53 | -0.12 | -0.48 | 0.01 | |||||||||||||
MAX | 67.90 | 73.08 | 80.11 | 84.07 | 96.34 | 104.93 | 107.97 | 106.36 | 99.93 | 90.66 | 75.63 | 63.78 | 83.61 | |||||||||||||
MIN | 54.97 | 58.70 | 63.45 | 72.77 | 81.92 | 92.54 | 99.79 | 99.87 | 92.48 | 78.87 | 60.50 | 53.00 | 78.91 | |||||||||||||
YRS | 18 | 21 | 20 | 20 | 20 | 20 | 16 | 18 | 17 | 19 | 20 | 21 | 8 |