YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | 75.00 | g | 82.00 | 90.00 | c | 104.00 | a | 102.00 | f | 104.00 | g | 90.00 | a | 89.00 | a | 79.00 | c | 78.00 | b | ----- | z | |
1981 | 70.00 | a | 80.00 | 78.00 | d | 86.00 | d | 91.00 | a | 104.00 | b | 99.00 | b | 93.00 | b | 87.00 | d | 82.00 | c | 84.00 | c | 76.00 | f | ----- | z | |
1982 | 75.00 | d | 79.00 | b | 81.00 | d | 84.00 | e | 90.00 | 97.00 | 98.00 | e | 96.00 | g | 93.00 | b | 85.00 | c | 75.00 | d | 74.00 | d | ----- | z | ||
1983 | 69.00 | c | 71.00 | a | 75.00 | b | 80.00 | g | 88.00 | c | 99.00 | c | 99.00 | h | 97.00 | j | 98.00 | e | 85.00 | b | 76.00 | i | 70.00 | e | ----- | z |
1984 | 69.00 | f | 69.00 | g | 78.00 | c | 82.00 | e | 97.00 | a | 94.00 | d | 96.00 | c | 89.00 | b | 92.00 | g | 79.00 | d | 76.00 | j | 72.00 | j | ----- | z |
1985 | 69.00 | d | 69.00 | b | 79.00 | a | 83.00 | 90.00 | 100.00 | 98.00 | b | 95.00 | c | 94.00 | c | 86.00 | b | 75.00 | b | 70.00 | a | 100.00 | t | |||
1986 | 76.00 | 82.00 | c | 82.00 | 86.00 | 90.00 | a | 96.00 | b | 94.00 | 97.00 | 89.00 | 84.00 | b | 72.00 | a | 66.00 | a | 97.00 | j | ||||||
1987 | 74.00 | a | 73.00 | b | 74.00 | 88.00 | 83.00 | b | 95.00 | 99.00 | b | 95.00 | a | 89.00 | 87.00 | c | 74.00 | 76.00 | 99.00 | k | ||||||
1988 | 69.00 | a | 70.00 | a | 83.00 | 82.00 | 91.00 | c | 93.00 | a | 93.00 | c | 92.00 | a | 91.00 | a | 85.00 | a | 81.00 | d | 68.00 | d | 93.00 | t | ||
1989 | 67.00 | 79.00 | a | 87.00 | 92.00 | 98.00 | a | 98.00 | a | 103.00 | e | 97.00 | b | 86.00 | c | 90.00 | b | 80.00 | a | 76.00 | 103.00 | p | ||||
1990 | 78.00 | 74.00 | 78.00 | 87.00 | 92.00 | b | 102.00 | 92.00 | 89.00 | d | 86.00 | a | 82.00 | a | 78.00 | b | 71.00 | d | 102.00 | n | ||||||
1991 | 69.00 | b | 70.00 | 78.00 | c | 83.00 | d | 93.00 | 99.00 | c | 94.00 | d | 89.00 | 89.00 | a | 88.00 | a | 75.00 | 68.00 | c | 99.00 | u | ||||
1992 | 64.00 | 70.00 | 74.00 | a | 88.00 | 87.00 | a | 97.00 | a | 99.00 | a | 94.00 | e | 95.00 | c | 85.00 | b | 74.00 | b | 72.00 | e | 99.00 | u | |||
1993 | 67.00 | b | 69.00 | a | 76.00 | a | 86.00 | a | 88.00 | b | 98.00 | c | 100.00 | c | 92.00 | a | 90.00 | a | 89.00 | a | 72.00 | 72.00 | e | 100.00 | u | |
1994 | 71.00 | a | 72.00 | a | 78.00 | b | 84.00 | a | 92.00 | a | 106.00 | c | 100.00 | b | 97.00 | a | 92.00 | d | 89.00 | a | 81.00 | b | 70.00 | f | 106.00 | y |
1995 | 77.00 | 76.00 | e | 83.00 | b | 86.00 | k | 94.00 | b | 97.00 | f | 104.00 | a | 98.00 | 98.00 | a | 83.00 | a | 79.00 | a | 77.00 | c | ----- | z | ||
1996 | 71.00 | c | 77.00 | 77.00 | c | 90.00 | a | 96.00 | c | 99.00 | d | 92.00 | a | 95.00 | b | 92.00 | c | 87.00 | c | 81.00 | b | 76.00 | d | ----- | z | |
1997 | 73.00 | 68.00 | 85.00 | c | 82.00 | 88.00 | a | 98.00 | 99.00 | c | 92.00 | b | 90.00 | c | 86.00 | b | 77.00 | c | 70.00 | b | 99.00 | s | ||||
1998 | 71.00 | a | 74.00 | a | 83.00 | a | 83.00 | b | 97.00 | a | 104.00 | b | 100.00 | a | 94.00 | b | 93.00 | a | 87.00 | c | 81.00 | b | 70.00 | c | 104.00 | t |
1999 | 78.00 | c | 74.00 | b | 76.00 | a | 84.00 | a | 90.00 | b | 100.00 | b | 100.00 | c | 92.00 | c | 92.00 | c | 88.00 | d | 80.00 | c | 69.00 | a | ----- | z |
2000 | 78.00 | b | 76.00 | a | 76.00 | a | 87.00 | b | 98.00 | e | 96.00 | 97.00 | d | 96.00 | i | 96.00 | b | 91.00 | d | 72.00 | b | 70.00 | a | ----- | z | |
2001 | 68.00 | b | 73.00 | 79.00 | a | 85.00 | a | 92.00 | a | 99.00 | c | 97.00 | b | 94.00 | b | 95.00 | f | 86.00 | 78.00 | b | 71.00 | e | 99.00 | y | ||
2002 | 73.00 | a | 79.00 | c | 81.00 | d | 88.00 | e | 95.00 | d | 99.00 | d | 96.00 | b | 101.00 | f | 93.00 | c | 83.00 | c | 75.00 | c | 66.00 | d | ----- | z |
2003 | 74.00 | d | 76.00 | a | 78.00 | b | 85.00 | b | 96.00 | e | 98.00 | d | 103.00 | d | 99.00 | b | 92.00 | b | 87.00 | c | 82.00 | c | 75.00 | a | ----- | z |
2004 | 68.00 | b | 77.00 | l | 83.00 | h | 82.00 | c | 94.00 | b | 99.00 | b | 96.00 | c | 91.00 | f | 90.00 | 79.00 | b | 75.00 | 75.00 | ----- | z | |||
2005 | 74.00 | 73.00 | 76.00 | 79.00 | 97.00 | 96.00 | 96.00 | 89.00 | 89.00 | 85.00 | 82.00 | 73.00 | 97.00 | |||||||||||||
2006 | 74.00 | 81.00 | 81.00 | x | 88.00 | 92.00 | m | 98.00 | a | 94.00 | n | ----- | z | ----- | z | 93.00 | g | 83.00 | 73.00 | b | ----- | z | ||||
2007 | 70.00 | 77.00 | 82.00 | f | 80.00 | 82.00 | a | 97.00 | e | 90.00 | s | 96.00 | f | 88.00 | t | ----- | z | ----- | z | ----- | z | ----- | z | |||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.00 | ----- | z | |
2009 | 74.00 | 80.00 | 86.00 | 88.00 | 98.00 | a | 95.00 | 100.00 | 98.00 | 92.00 | 89.00 | 84.00 | 68.00 | 100.00 | a | |||||||||||
2010 | 65.00 | 65.00 | 81.00 | 81.00 | 92.00 | 103.00 | 94.00 | 96.00 | 92.00 | 88.00 | 81.00 | 80.00 | 103.00 | |||||||||||||
2011 | 70.00 | 78.00 | 84.00 | 89.00 | 97.00 | 105.00 | 99.00 | 102.00 | 97.00 | 89.00 | 81.00 | 70.00 | 105.00 | |||||||||||||
2012 | 72.00 | 72.00 | 85.00 | 93.00 | 92.00 | 102.00 | 98.00 | 100.00 | 99.00 | 87.00 | 79.00 | 75.00 | 102.00 | |||||||||||||
2013 | 77.00 | 70.00 | 84.00 | 89.00 | 94.00 | a | 103.00 | a | 94.00 | 96.00 | 92.00 | 87.00 | 79.00 | 70.00 | 103.00 | b | ||||||||||
2014 | 71.00 | a | 81.00 | 79.00 | 83.00 | a | 93.00 | 101.00 | 100.00 | 97.00 | 97.00 | 87.00 | 80.00 | 75.00 | 101.00 | b | ||||||||||
2015 | 70.00 | 80.00 | 82.00 | 81.00 | 88.00 | 95.00 | 98.00 | 99.00 | 95.00 | 91.00 | 78.00 | a | 73.00 | 99.00 | a | |||||||||||
2016 | 71.00 | 80.00 | 80.00 | 83.00 | 89.00 | 101.00 | 104.00 | 95.00 | 90.00 | 90.00 | 81.00 | 76.00 | 104.00 | |||||||||||||
2017 | 72.00 | 83.00 | 86.00 | 86.00 | 89.00 | 103.00 | 97.00 | a | 91.00 | 95.00 | 85.00 | 83.00 | 76.00 | 103.00 | a | |||||||||||
2018 | 74.00 | 76.00 | 85.00 | 86.00 | 95.00 | 101.00 | 100.00 | 95.00 | 93.00 | 88.00 | 74.00 | 73.00 | 101.00 | |||||||||||||
2019 | 69.00 | 74.00 | 84.00 | 85.00 | q | 88.00 | 96.00 | ----- | z | 98.00 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 71.68 | 75.03 | 80.31 | 85.14 | 91.95 | 99.21 | 97.91 | 94.70 | 92.24 | 86.33 | 78.43 | 72.63 | 101.64 | |||||||||||||
S.D. | 3.60 | 4.55 | 3.74 | 3.33 | 4.02 | 3.29 | 3.18 | 3.44 | 3.37 | 2.95 | 3.55 | 3.67 | 2.34 | |||||||||||||
SKEW | 0.05 | -0.14 | 0.06 | 0.36 | -0.35 | 0.22 | -0.02 | -0.05 | 0.17 | -0.72 | -0.34 | 0.13 | -0.53 | |||||||||||||
MAX | 78.00 | 83.00 | 87.00 | 93.00 | 98.00 | 106.00 | 104.00 | 102.00 | 99.00 | 91.00 | 84.00 | 80.00 | 105.00 | |||||||||||||
MIN | 64.00 | 65.00 | 74.00 | 79.00 | 82.00 | 93.00 | 92.00 | 89.00 | 86.00 | 79.00 | 72.00 | 66.00 | 97.00 | |||||||||||||
YRS | 37 | 36 | 35 | 36 | 38 | 38 | 34 | 30 | 34 | 36 | 35 | 35 | 11 |