YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1991 | ----- | z | ----- | z | 72.38 | g | 86.38 | f | 94.84 | f | 102.36 | e | 110.65 | e | 110.52 | f | 104.54 | f | 97.71 | g | 78.24 | i | 64.62 | e | 92.54 | i |
1992 | 65.07 | c | 73.10 | h | 77.09 | h | 92.42 | d | 99.88 | e | 107.42 | f | 110.68 | f | 111.16 | f | 106.78 | c | 92.78 | h | 73.13 | g | 60.79 | g | 91.04 | h |
1993 | 64.05 | i | 68.33 | g | 80.38 | e | 91.68 | k | 100.75 | g | 106.58 | f | 110.75 | c | 110.39 | h | 105.11 | c | 92.29 | g | 71.83 | g | 65.85 | d | 90.52 | h |
1994 | 70.36 | c | 69.85 | b | 84.81 | d | 90.52 | e | 97.64 | f | 114.15 | c | 115.29 | c | 114.35 | e | 107.15 | d | 89.72 | f | 70.63 | c | 66.07 | c | 90.32 | b |
1995 | 65.14 | b | 77.52 | e | 78.23 | e | 87.65 | d | 94.42 | e | 105.41 | c | 114.93 | b | 115.11 | c | 108.76 | e | 94.81 | d | 83.46 | d | 70.79 | b | 91.35 | |
1996 | 70.81 | d | 76.48 | f | 83.12 | f | 91.60 | 100.61 | 110.10 | 114.35 | 112.55 | 101.03 | 89.58 | 75.77 | 66.45 | 93.29 | b | |||||||||
1997 | 65.61 | 71.25 | 86.84 | 86.97 | 104.97 | ----- | z | 111.42 | 111.45 | 103.60 | ----- | z | 75.60 | 62.58 | 88.03 | b | ||||||||||
1998 | 65.71 | ----- | z | 76.81 | ----- | z | 91.58 | 102.80 | 113.87 | 112.71 | 101.00 | 88.10 | 74.87 | 65.81 | 89.32 | b | ||||||||||
1999 | 69.84 | 71.92 | d | 80.94 | 80.80 | 96.87 | 106.50 | 107.68 | 110.13 | 104.13 | 94.74 | 79.27 | 66.87 | 89.14 | ||||||||||||
2000 | 69.16 | 73.41 | 78.73 | a | 94.10 | 102.77 | 109.93 | 113.10 | 109.96 | c | 105.50 | b | 90.00 | w | ----- | z | ----- | z | 95.19 | c | ||||||
2001 | ----- | z | 67.09 | q | 81.41 | i | 84.72 | e | 102.28 | f | 107.15 | d | 107.65 | h | 109.04 | f | 106.33 | i | 92.92 | g | 77.65 | j | 63.74 | l | 95.94 | j |
2002 | 65.33 | g | 73.11 | i | 77.00 | e | 89.79 | a | 95.65 | e | 107.69 | a | 110.80 | a | 108.78 | d | 103.32 | b | 88.15 | d | 76.86 | a | 64.25 | c | 92.23 | b |
2003 | 72.83 | b | 69.38 | b | 76.07 | a | 82.32 | b | 95.79 | b | 105.00 | a | 111.03 | a | 106.47 | a | 103.50 | b | 96.15 | d | 70.31 | d | 65.39 | c | 87.85 | |
2004 | 66.81 | d | 66.22 | b | 85.25 | c | 85.67 | c | 96.24 | b | 105.50 | 110.52 | f | 107.64 | t | 100.21 | k | 88.00 | j | 70.32 | k | 64.00 | k | 84.28 | f | |
2005 | 66.05 | i | 67.11 | i | 77.05 | j | 85.89 | l | 96.35 | k | 103.68 | k | 112.44 | d | 105.83 | m | 101.48 | i | 87.05 | i | 77.89 | k | 68.55 | k | 112.44 | k |
2006 | 69.52 | j | 74.55 | f | 72.10 | 84.83 | 99.29 | 108.62 | d | 109.52 | 106.29 | 98.60 | 86.29 | 77.37 | 64.55 | 90.74 | b | |||||||||
2007 | 62.48 | 72.18 | 82.32 | 86.23 | 96.84 | 105.20 | 110.13 | 107.54 | g | 98.45 | h | 87.59 | d | 78.23 | 61.80 | a | 84.30 | b | ||||||||
2008 | 61.90 | a | 69.00 | 79.86 | b | 87.27 | 91.65 | 107.50 | 109.10 | 107.23 | 103.73 | 91.71 | 77.87 | 62.94 | 87.48 | |||||||||||
2009 | 67.35 | 67.82 | 78.32 | 83.93 | 101.06 | 98.73 | 110.84 | 107.48 | 103.73 | 85.19 | 76.87 | 61.94 | 86.94 | |||||||||||||
2010 | 65.00 | 68.96 | 73.97 | 82.21 | a | 89.06 | 103.80 | 110.10 | 106.87 | 104.10 | 87.39 | 73.60 | 67.29 | 86.03 | ||||||||||||
2011 | 65.23 | 67.29 | 78.10 | 86.40 | e | 94.17 | y | 104.70 | 108.29 | 112.35 | 104.17 | 91.52 | 74.27 | 63.42 | 86.88 | a | ||||||||||
2012 | 70.13 | 74.00 | 79.65 | 88.87 | 99.48 | 107.90 | 106.81 | 109.68 | 107.00 | b | 89.75 | c | 79.40 | 67.03 | 89.97 | |||||||||||
2013 | 63.45 | 69.07 | 82.87 | 88.14 | a | 96.06 | 108.43 | 108.71 | 105.71 | 99.00 | 84.90 | 75.03 | 63.63 | a | 87.08 | |||||||||||
2014 | 70.55 | 76.64 | 82.23 | 87.04 | b | 95.23 | 105.80 | 108.71 | 104.29 | 101.07 | 90.97 | 77.43 | 65.87 | 88.82 | ||||||||||||
2015 | 67.84 | 79.46 | 84.52 | 86.40 | 89.65 | 106.83 | 104.90 | 109.65 | 103.60 | 90.13 | 72.83 | 62.77 | a | 88.21 | ||||||||||||
2016 | 61.55 | 76.59 | 82.67 | a | 85.43 | 91.32 | 108.50 | 110.00 | 106.32 | 98.73 | 91.29 | 77.83 | 64.81 | 87.92 | ||||||||||||
2017 | 62.00 | 71.25 | 82.84 | 88.20 | 93.82 | t | 109.36 | b | 109.61 | 107.81 | 98.20 | 92.06 | 79.83 | 68.97 | 88.19 | a | ||||||||||
2018 | 70.94 | 72.46 | 77.74 | 91.40 | 95.90 | 106.00 | 109.45 | 107.94 | 105.10 | 86.03 | 75.70 | 65.90 | 88.71 | |||||||||||||
2019 | 64.35 | 63.18 | 76.39 | 89.50 | 89.00 | 104.00 | 109.16 | 109.42 | 100.57 | 87.03 | 76.28 | a | 61.43 | c | 85.86 | |||||||||||
2020 | 67.35 | 72.00 | 73.71 | 85.77 | 100.59 | b | 103.90 | 110.65 | 112.87 | 105.77 | 96.29 | 79.07 | 66.77 | 89.56 | ||||||||||||
2021 | 67.81 | 73.21 | 77.03 | 91.63 | 97.06 | 109.30 | 108.84 | 107.19 | 103.37 | 86.37 | a | 82.77 | 67.97 | 89.38 | ||||||||||||
2022 | 68.84 | 72.61 | 82.03 | 90.33 | 98.13 | 106.83 | 108.35 | 105.35 | 102.83 | 89.77 | 70.70 | 65.61 | 88.45 | |||||||||||||
2023 | 64.03 | 67.43 | 71.23 | 87.43 | 95.58 | 99.93 | 113.03 | 107.19 | d | 100.30 | 91.45 | 76.10 | 67.68 | 86.78 | ||||||||||||
2024 | 64.16 | 70.00 | 75.77 | 80.07 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.98 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 66.65 | 71.31 | 79.26 | 87.50 | 96.34 | 106.27 | 110.42 | 109.04 | 103.21 | 89.89 | 76.46 | 65.32 | 88.21 | |||||||||||||
S.D. | 3.15 | 3.76 | 4.00 | 3.21 | 4.19 | 3.16 | 2.39 | 2.93 | 2.79 | 3.35 | 3.29 | 2.26 | 1.45 | |||||||||||||
SKEW | 0.11 | 0.19 | -0.09 | -0.02 | -0.08 | -0.16 | 0.21 | 0.46 | -0.14 | 0.40 | -0.00 | 0.19 | 0.25 | |||||||||||||
MAX | 72.83 | 79.46 | 86.84 | 94.10 | 104.97 | 114.15 | 115.29 | 115.11 | 108.76 | 96.29 | 83.46 | 70.79 | 91.35 | |||||||||||||
MIN | 61.55 | 63.18 | 71.23 | 80.80 | 89.00 | 98.73 | 104.90 | 104.29 | 98.20 | 84.90 | 70.31 | 61.43 | 85.86 | |||||||||||||
YRS | 28 | 25 | 29 | 29 | 26 | 29 | 30 | 26 | 28 | 24 | 26 | 28 | 17 |