YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1981 | ----- | z | 90.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | 87.00 | 87.00 | e | 88.00 | 89.00 | 89.00 | c | 90.00 | 93.00 | 93.00 | 92.00 | a | 93.00 | 91.00 | 89.00 | 93.00 | i | |||||||||
1983 | 87.00 | 87.00 | 91.00 | 90.00 | 92.00 | 92.00 | 92.00 | 92.00 | 92.00 | 92.00 | 91.00 | 89.00 | 92.00 | |||||||||||||
1984 | 90.00 | a | 88.00 | 88.00 | a | 87.00 | 88.00 | 92.00 | 91.00 | 89.00 | a | 91.00 | 92.00 | c | 90.00 | 88.00 | 92.00 | f | ||||||||
1985 | 85.00 | 85.00 | 85.00 | 85.00 | e | 91.00 | 90.00 | 91.00 | 92.00 | 92.00 | 91.00 | 90.00 | ----- | z | ----- | z | ||||||||||
1986 | 88.00 | 87.00 | 91.00 | 90.00 | 91.00 | 92.00 | 93.00 | 94.00 | 94.00 | 94.00 | a | 92.00 | 88.00 | 94.00 | a | |||||||||||
1987 | 88.00 | 86.00 | 87.00 | 86.00 | 88.00 | a | 91.00 | 93.00 | 92.00 | 94.00 | 92.00 | 90.00 | 88.00 | 94.00 | a | |||||||||||
1988 | 86.00 | 87.00 | 89.00 | 89.00 | 89.00 | 90.00 | 91.00 | 91.00 | 90.00 | 90.00 | 91.00 | 89.00 | 91.00 | |||||||||||||
1989 | 86.00 | 85.00 | 87.00 | 87.00 | 89.00 | 90.00 | 91.00 | 95.00 | 91.00 | 90.00 | 88.00 | 88.00 | 95.00 | |||||||||||||
1990 | 87.00 | 85.00 | 85.00 | 88.00 | 89.00 | 89.00 | 90.00 | 91.00 | 92.00 | 90.00 | 90.00 | 85.00 | a | 92.00 | a | |||||||||||
1991 | 86.00 | 87.00 | 86.00 | 87.00 | b | 88.00 | 88.00 | 90.00 | 91.00 | 90.00 | 89.00 | 88.00 | 86.00 | b | 91.00 | d | ||||||||||
1992 | 83.00 | a | 83.00 | 85.00 | 87.00 | 88.00 | 88.00 | 91.00 | 90.00 | 90.00 | b | 90.00 | a | 88.00 | c | 85.00 | 91.00 | g | ||||||||
1993 | 84.00 | a | 83.00 | 86.00 | a | 86.00 | 87.00 | 88.00 | 88.00 | a | 90.00 | 90.00 | 91.00 | 87.00 | 84.00 | 91.00 | c | |||||||||
1994 | 83.00 | 85.00 | 85.00 | 86.00 | 88.00 | 87.00 | 89.00 | 91.00 | 91.00 | 90.00 | 88.00 | 84.00 | a | 91.00 | a | |||||||||||
1995 | 84.00 | a | 83.00 | a | 86.00 | 86.00 | b | 87.00 | 89.00 | a | 90.00 | a | 91.00 | a | 90.00 | 90.00 | 89.00 | 87.00 | a | 91.00 | h | |||||
1996 | 86.00 | 86.00 | 86.00 | a | 89.00 | 90.00 | 89.00 | 91.00 | 90.00 | 89.00 | 90.00 | 88.00 | 85.00 | a | 91.00 | b | ||||||||||
1997 | 86.00 | a | 85.00 | 85.00 | 85.00 | 89.00 | 90.00 | 89.00 | 89.00 | 89.00 | 89.00 | 87.00 | 85.00 | 90.00 | a | |||||||||||
1998 | 83.00 | 84.00 | 85.00 | 85.00 | 89.00 | 86.00 | 87.00 | 87.00 | 88.00 | 87.00 | 85.00 | 83.00 | 89.00 | |||||||||||||
1999 | 82.00 | 83.00 | 85.00 | 85.00 | 86.00 | 86.00 | 87.00 | 87.00 | 87.00 | 87.00 | 87.00 | 86.00 | a | 87.00 | a | |||||||||||
2000 | 84.00 | 83.00 | 85.00 | 84.00 | 85.00 | 87.00 | 88.00 | 88.00 | 89.00 | a | 87.00 | 86.00 | a | 82.00 | 89.00 | b | ||||||||||
2001 | 84.00 | 82.00 | a | 82.00 | a | 83.00 | 84.00 | 85.00 | a | 85.00 | a | 87.00 | 88.00 | 87.00 | 85.00 | 84.00 | 88.00 | d | ||||||||
2002 | 82.00 | 82.00 | 86.00 | 85.00 | 86.00 | 87.00 | 87.00 | 88.00 | 87.00 | 87.00 | 85.00 | a | 86.00 | 88.00 | a | |||||||||||
2003 | 83.00 | 83.00 | 83.00 | 87.00 | 85.00 | 86.00 | 87.00 | i | 88.00 | k | 88.00 | j | 88.00 | h | 86.00 | l | 86.00 | i | ----- | z | ||||||
2004 | 84.00 | k | 84.00 | j | 87.00 | i | 85.00 | j | 86.00 | k | 85.00 | o | 87.00 | j | 88.00 | l | 88.00 | j | 87.00 | k | 86.00 | l | 84.00 | p | ----- | z |
2005 | 84.00 | k | 83.00 | j | 87.00 | k | 88.00 | i | 86.00 | j | 87.00 | i | 87.00 | k | 88.00 | i | 89.00 | i | 86.00 | j | 85.00 | j | 86.00 | j | ----- | z |
2006 | 82.00 | k | 82.00 | i | 83.00 | i | 83.00 | k | 85.00 | i | 85.00 | i | 86.00 | k | 90.00 | i | 87.00 | j | 86.00 | i | 86.00 | k | 82.00 | k | ----- | z |
2007 | 83.00 | j | 79.00 | i | 81.00 | j | 82.00 | j | 82.00 | i | 83.00 | k | 84.00 | j | 83.00 | i | 84.00 | k | 83.00 | h | 82.00 | j | 80.00 | k | ----- | z |
2008 | 79.00 | j | 78.00 | i | 80.00 | l | 80.00 | h | 80.00 | j | 81.00 | j | 83.00 | i | 83.00 | k | 82.00 | i | 83.00 | i | 83.00 | o | 79.00 | j | ----- | z |
2009 | 78.00 | k | 81.00 | i | 79.00 | l | 78.00 | i | 82.00 | k | 82.00 | i | 83.00 | i | 84.00 | m | 83.00 | i | 84.00 | j | 83.00 | l | 82.00 | i | ----- | z |
2010 | 80.00 | l | 86.00 | j | 82.00 | i | 79.00 | i | 79.00 | k | 81.00 | j | 86.00 | j | 87.00 | j | 87.00 | k | 88.00 | k | 86.00 | l | 86.00 | j | ----- | z |
2011 | 84.00 | k | 85.00 | i | 86.00 | i | 86.00 | k | 85.00 | j | 85.00 | i | 86.00 | k | 87.00 | k | 87.00 | k | 87.00 | j | 85.00 | n | 83.00 | m | ----- | z |
2012 | 83.00 | m | 83.00 | q | 83.00 | l | 84.00 | k | 84.00 | j | 85.00 | l | 86.00 | j | 87.00 | k | 86.00 | l | 88.00 | k | 86.00 | l | 83.00 | m | ----- | z |
2013 | 83.00 | l | 82.00 | w | 83.00 | t | 86.00 | h | 87.00 | i | 86.00 | l | 88.00 | i | 88.00 | k | 89.00 | j | 87.00 | j | 86.00 | m | 86.00 | m | ----- | z |
2014 | 83.00 | j | 84.00 | k | 87.00 | k | 87.00 | o | 88.00 | j | 88.00 | m | 88.00 | k | 89.00 | p | 90.00 | o | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 85.18 | 85.04 | 86.18 | 86.64 | 88.09 | 88.73 | 89.86 | 90.38 | 90.29 | 89.90 | 88.38 | 86.05 | 90.81 | |||||||||||||
S.D. | 2.15 | 2.12 | 2.20 | 1.92 | 2.04 | 2.10 | 2.22 | 2.25 | 1.98 | 2.07 | 2.13 | 2.11 | 2.29 | |||||||||||||
SKEW | 0.32 | 0.38 | 0.65 | 0.20 | -0.16 | -0.01 | -0.41 | 0.13 | 0.15 | 0.03 | -0.10 | -0.10 | 0.17 | |||||||||||||
MAX | 90.00 | 90.00 | 91.00 | 90.00 | 92.00 | 92.00 | 93.00 | 95.00 | 94.00 | 94.00 | 92.00 | 89.00 | 95.00 | |||||||||||||
MIN | 82.00 | 82.00 | 82.00 | 83.00 | 84.00 | 85.00 | 85.00 | 87.00 | 87.00 | 87.00 | 85.00 | 82.00 | 87.00 | |||||||||||||
YRS | 22 | 23 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 16 |