YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 104.00 | 109.00 | 109.00 | 106.00 | 101.00 | 97.00 | 86.00 | a | 81.00 | b | ----- | z | ||||||
1974 | 73.00 | b | 78.00 | a | 84.00 | 90.00 | a | 104.00 | 108.00 | 104.00 | a | 102.00 | 103.00 | 98.00 | 91.00 | a | 75.00 | c | 108.00 | i | ||||||
1975 | 85.00 | 82.00 | 83.00 | 80.00 | a | 96.00 | 99.00 | 107.00 | 109.00 | 105.00 | a | 99.00 | 93.00 | 83.00 | 109.00 | b | ||||||||||
1976 | 86.00 | 82.00 | 84.00 | a | 95.00 | 103.00 | 107.00 | 109.00 | 109.00 | b | 100.00 | 95.00 | 92.00 | a | 80.00 | a | 109.00 | e | ||||||||
1977 | 78.00 | a | 88.00 | a | 81.00 | 92.00 | 100.00 | 103.00 | 108.00 | 105.00 | 105.00 | 98.00 | 92.00 | a | 85.00 | 108.00 | c | |||||||||
1978 | 75.00 | 77.00 | c | ----- | z | 89.00 | a | 101.00 | a | ----- | z | 109.00 | 106.00 | b | 104.00 | 101.00 | 91.00 | a | 80.00 | ----- | z | |||||
1979 | 66.00 | 76.00 | c | 86.00 | b | 85.00 | 98.00 | 110.00 | ----- | z | 101.00 | 109.00 | 96.00 | 83.00 | a | 87.00 | ----- | z | ||||||||
1980 | 75.00 | 85.00 | c | 77.00 | a | 94.00 | 94.00 | a | 104.00 | a | 111.00 | 109.00 | 107.00 | 110.00 | b | ----- | z | 89.00 | ----- | z | ||||||
1981 | 82.00 | a | 87.00 | 80.00 | g | 93.00 | b | 95.00 | 108.00 | e | 106.00 | 110.00 | a | 102.00 | 92.00 | 89.00 | 84.00 | 110.00 | p | |||||||
1982 | 79.00 | 83.00 | 80.00 | 88.00 | 93.00 | 94.00 | 105.00 | 108.00 | 111.00 | b | 92.00 | h | 85.00 | 78.00 | a | 111.00 | k | |||||||||
1983 | 84.00 | 80.00 | 80.00 | a | 88.00 | 102.00 | ----- | z | 110.00 | 110.00 | b | 107.00 | e | 93.00 | a | 88.00 | a | 79.00 | ----- | z | ||||||
1984 | 86.00 | a | 82.00 | 88.00 | a | 96.00 | g | 111.00 | 108.00 | 109.00 | 106.00 | 112.00 | 97.00 | 90.00 | 74.00 | d | 112.00 | m | ||||||||
1985 | 75.00 | a | 84.00 | a | 86.00 | 99.00 | a | ----- | z | 106.00 | 111.00 | 112.00 | 99.00 | 97.00 | 87.00 | 81.00 | e | ----- | z | |||||||
1986 | 84.00 | k | 90.00 | h | 89.00 | e | 92.00 | h | 99.00 | a | 105.00 | a | 106.00 | 108.00 | 105.00 | a | ----- | z | 87.00 | 80.00 | ----- | z | ||||
1987 | 77.00 | d | 76.00 | a | 80.00 | d | 97.00 | e | 100.00 | e | 101.00 | a | 105.00 | a | 110.00 | a | 105.00 | h | 104.00 | h | 81.00 | e | 79.00 | a | ----- | z |
1988 | 80.00 | c | 81.00 | c | 94.00 | a | 92.00 | a | 99.00 | e | 101.00 | b | 106.00 | 104.00 | 108.00 | 101.00 | a | 96.00 | 82.00 | a | 108.00 | q | ||||
1989 | 78.00 | b | 85.00 | 89.00 | 102.00 | 94.00 | a | 105.00 | a | ----- | z | 103.00 | 105.00 | ----- | z | 90.00 | b | 85.00 | a | ----- | z | |||||
1990 | 85.00 | j | ----- | z | 89.00 | j | 92.00 | k | 98.00 | a | 108.00 | g | 104.00 | a | 105.00 | 92.00 | u | 96.00 | a | 88.00 | 78.00 | ----- | z | |||
1991 | 75.00 | 85.00 | c | 73.00 | j | 86.00 | e | 93.00 | k | ----- | z | 103.00 | 106.00 | i | 102.00 | a | 102.00 | 93.00 | a | ----- | z | ----- | z | |||
1992 | 79.00 | 80.00 | k | 75.00 | b | 95.00 | h | 90.00 | i | 98.00 | a | 108.00 | f | ----- | z | 103.00 | c | 101.00 | l | 86.00 | a | 78.00 | ----- | z | ||
1993 | 74.00 | l | 72.00 | j | 87.00 | d | 90.00 | b | ----- | z | 106.00 | c | 104.00 | b | 108.00 | d | 110.00 | m | 101.00 | g | 89.00 | m | 78.00 | k | ----- | z |
1994 | 82.00 | l | 75.00 | i | 85.00 | k | 90.00 | p | 92.00 | k | 111.00 | d | 104.00 | h | 111.00 | a | 103.00 | h | 94.00 | h | 86.00 | e | 77.00 | f | ----- | z |
1995 | 78.00 | c | 85.00 | g | 81.00 | a | 85.00 | e | 96.00 | e | 105.00 | n | 114.00 | d | 109.00 | f | 111.00 | f | 99.00 | i | ----- | z | 84.00 | b | ----- | z |
1996 | 84.00 | f | 88.00 | b | 88.00 | h | 99.00 | f | 104.00 | h | ----- | z | 109.00 | i | 113.00 | f | 100.00 | c | 106.00 | i | 92.00 | f | 79.00 | k | ----- | z |
1997 | 75.00 | f | 79.00 | g | 98.00 | h | 93.00 | f | 105.00 | k | 104.00 | m | 108.00 | l | 114.00 | m | 104.00 | n | 97.00 | l | 95.00 | i | 76.00 | n | ----- | z |
1998 | 76.00 | j | 68.00 | b | 85.00 | b | 94.00 | 86.00 | g | 100.00 | b | ----- | z | 115.00 | b | 103.00 | a | 100.00 | 90.00 | i | 82.00 | c | ----- | z | ||
1999 | 82.00 | e | 84.00 | f | 87.00 | l | 95.00 | b | 96.00 | b | 106.00 | f | 105.00 | n | 109.00 | b | 103.00 | n | 104.00 | k | 93.00 | c | 82.00 | q | ----- | z |
2000 | 86.00 | f | 82.00 | c | 86.00 | b | 98.00 | h | 104.00 | c | 108.00 | n | 112.00 | f | 111.00 | l | 113.00 | n | 92.00 | l | 80.00 | n | 82.00 | l | ----- | z |
2001 | ----- | z | 69.00 | l | 85.00 | o | 96.00 | n | 104.00 | m | 107.00 | m | 107.00 | t | 109.00 | e | 107.00 | h | ----- | z | 85.00 | r | 78.00 | j | ----- | z |
2002 | 83.00 | j | 87.00 | m | 88.00 | l | 98.00 | a | 104.00 | p | 107.00 | t | 113.00 | p | ----- | z | 108.00 | r | 96.00 | k | 88.00 | o | ----- | z | ----- | z |
2003 | 90.00 | m | 87.00 | l | 84.00 | l | 82.00 | s | 109.00 | i | ----- | z | 105.00 | s | 110.00 | f | 108.00 | f | 101.00 | u | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 78.58 | 81.53 | 83.95 | 91.60 | 99.35 | 104.37 | 107.37 | 107.61 | 104.55 | 98.25 | 88.90 | 81.14 | 108.50 | |||||||||||||
S.D. | 5.00 | 4.94 | 4.62 | 5.43 | 4.46 | 4.54 | 2.97 | 3.33 | 3.61 | 4.19 | 3.73 | 3.73 | 0.71 | |||||||||||||
SKEW | -0.47 | -1.00 | 0.06 | -0.13 | 0.72 | -0.58 | 0.42 | -0.10 | 0.45 | 1.19 | -0.20 | 0.14 | 0.00 | |||||||||||||
MAX | 86.00 | 88.00 | 94.00 | 102.00 | 111.00 | 111.00 | 114.00 | 115.00 | 112.00 | 110.00 | 96.00 | 89.00 | 109.00 | |||||||||||||
MIN | 66.00 | 68.00 | 75.00 | 80.00 | 93.00 | 94.00 | 103.00 | 101.00 | 99.00 | 92.00 | 81.00 | 74.00 | 108.00 | |||||||||||||
YRS | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 23 | 20 | 16 | 21 | 21 | 2 |