YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | 101.00 | a | 108.00 | b | 109.00 | a | 104.00 | c | 101.00 | f | 100.00 | 87.00 | 80.00 | ----- | z | |||
1999 | 88.00 | a | 85.00 | a | 88.00 | 94.00 | 100.00 | c | 105.00 | b | 107.00 | a | 105.00 | 102.00 | c | 99.00 | 93.00 | a | 85.00 | 107.00 | l | |||||
2000 | 87.00 | a | 85.00 | 84.00 | d | 100.00 | 108.00 | a | 105.00 | a | 108.00 | c | 105.00 | a | 106.00 | 100.00 | a | 78.00 | a | 78.00 | 108.00 | m | ||||
2001 | 77.00 | 83.00 | a | 87.00 | 97.00 | 103.00 | 107.00 | 110.00 | 107.00 | 105.00 | 95.00 | 90.00 | 79.00 | 110.00 | a | |||||||||||
2002 | 83.00 | 87.00 | 89.00 | b | 96.00 | 106.00 | 109.00 | 107.00 | 106.00 | 104.00 | a | 94.00 | 87.00 | 75.00 | a | 109.00 | d | |||||||||
2003 | 83.00 | a | 85.00 | b | 88.00 | 89.00 | a | 103.00 | b | 107.00 | c | 109.00 | a | 105.00 | c | 102.00 | 100.00 | a | 84.00 | 83.00 | a | 109.00 | o | |||
2004 | 77.00 | b | 84.00 | b | 92.00 | a | 91.00 | a | 98.00 | 107.00 | b | 104.00 | b | 104.00 | 104.00 | 95.00 | a | 82.00 | 81.00 | c | 107.00 | n | ||||
2005 | 80.00 | 72.00 | 87.00 | 93.00 | a | 107.00 | a | 109.00 | 109.00 | 104.00 | 101.00 | 96.00 | c | 89.00 | a | 81.00 | a | 109.00 | g | |||||||
2006 | 80.00 | 84.00 | a | 83.00 | 92.00 | 100.00 | b | 107.00 | b | 108.00 | b | 99.00 | a | 98.00 | b | 98.00 | 89.00 | 78.00 | 108.00 | j | ||||||
2007 | 79.00 | 82.00 | 95.00 | 92.00 | 101.00 | c | 107.00 | 109.00 | 104.00 | 101.00 | 95.00 | a | 90.00 | 81.00 | 109.00 | d | ||||||||||
2008 | 73.00 | 84.00 | 87.00 | a | 94.00 | 103.00 | a | 110.00 | 104.00 | 105.00 | 100.00 | 95.00 | c | 91.00 | a | 80.00 | a | 110.00 | g | |||||||
2009 | 80.00 | 90.00 | 91.00 | 96.00 | 101.00 | 103.00 | 107.00 | a | 106.00 | c | 101.00 | 99.00 | 91.00 | 73.00 | a | 107.00 | e | |||||||||
2010 | 75.00 | 77.00 | 87.00 | 89.00 | l | ----- | z | 108.00 | c | 106.00 | 104.00 | 103.00 | 102.00 | a | 87.00 | 83.00 | a | ----- | z | |||||||
2011 | 79.00 | a | 82.00 | 87.00 | 95.00 | a | 101.00 | 111.00 | 108.00 | a | 106.00 | 106.00 | 98.00 | a | 88.00 | 81.00 | a | 111.00 | e | |||||||
2012 | 81.00 | 79.00 | 87.00 | 100.00 | a | 104.00 | b | 107.00 | 104.00 | 108.00 | a | 100.00 | a | 98.00 | 89.00 | e | 82.00 | a | 108.00 | k | ||||||
2013 | 80.00 | 76.00 | 93.00 | 95.00 | a | 96.00 | d | 108.00 | d | 108.00 | 105.00 | d | 102.00 | a | 93.00 | 86.00 | a | 82.00 | a | 108.00 | p | |||||
2014 | 78.00 | b | 88.00 | 84.00 | a | 93.00 | d | 102.00 | 105.00 | 105.00 | b | 101.00 | b | 102.00 | a | 96.00 | a | 90.00 | b | 77.00 | a | 105.00 | p | |||
2015 | 78.00 | a | 84.00 | 91.00 | 88.00 | 100.00 | 109.00 | 101.00 | i | 106.00 | b | 99.00 | b | 99.00 | c | 84.00 | f | 81.00 | c | ----- | z | |||||
2016 | 81.00 | 89.00 | e | 90.00 | d | 93.00 | d | 98.00 | a | 112.00 | a | 106.00 | k | 105.00 | b | 102.00 | c | 95.00 | b | 88.00 | b | 84.00 | h | ----- | z | |
2017 | 80.00 | d | 88.00 | 92.00 | a | 96.00 | a | 102.00 | f | 112.00 | h | 108.00 | g | 102.00 | a | 103.00 | b | 98.00 | a | 93.00 | b | 84.00 | b | ----- | z | |
2018 | 81.00 | 82.00 | c | 91.00 | 95.00 | c | 101.00 | a | 106.00 | b | 108.00 | b | 106.00 | c | 103.00 | a | 96.00 | 83.00 | 77.00 | 108.00 | o | |||||
2019 | 79.00 | 76.00 | c | 88.00 | a | 95.00 | 95.00 | 106.00 | 107.00 | 108.00 | a | 104.00 | 96.00 | 87.00 | 77.00 | 108.00 | e | |||||||||
2020 | 77.00 | 80.00 | 84.00 | 100.00 | 106.00 | b | 107.00 | 109.00 | 109.00 | 109.00 | 101.00 | a | 93.00 | 79.00 | 109.00 | c | ||||||||||
2021 | 80.00 | 81.00 | 87.00 | 92.00 | e | 98.00 | c | 112.00 | a | 105.00 | 105.00 | m | 100.00 | 95.00 | a | 90.00 | 82.00 | b | 112.00 | y | ||||||
2022 | 76.00 | 82.00 | a | 93.00 | b | 96.00 | a | 103.00 | 108.00 | 106.00 | 102.00 | b | 99.00 | a | 92.00 | a | 82.00 | b | 78.00 | 108.00 | j | |||||
2023 | 78.00 | 82.00 | 82.00 | 97.00 | b | 99.00 | c | 110.00 | 111.00 | 107.00 | a | 107.00 | 100.00 | 93.00 | 83.00 | f | 111.00 | l | ||||||||
2024 | 80.00 | a | 86.00 | 80.00 | a | 93.00 | a | 90.00 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 79.62 | 82.81 | 87.96 | 94.48 | 101.42 | 107.72 | 107.30 | 104.92 | 102.52 | 97.12 | 88.00 | 79.88 | 109.25 | |||||||||||||
S.D. | 3.24 | 4.31 | 3.70 | 3.07 | 3.31 | 2.21 | 1.96 | 2.25 | 2.68 | 2.61 | 3.86 | 2.88 | 0.50 | |||||||||||||
SKEW | 0.69 | -0.58 | -0.16 | 0.02 | 0.15 | 0.17 | -0.25 | -0.63 | 0.51 | -0.00 | -0.77 | -0.43 | 1.15 | |||||||||||||
MAX | 88.00 | 90.00 | 95.00 | 100.00 | 108.00 | 112.00 | 111.00 | 109.00 | 109.00 | 102.00 | 93.00 | 85.00 | 110.00 | |||||||||||||
MIN | 73.00 | 72.00 | 80.00 | 88.00 | 95.00 | 103.00 | 104.00 | 99.00 | 98.00 | 92.00 | 78.00 | 73.00 | 109.00 | |||||||||||||
YRS | 26 | 26 | 26 | 25 | 24 | 25 | 23 | 25 | 25 | 26 | 25 | 24 | 4 |