YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 87.16 | 95.17 | 97.84 | 96.58 | 88.50 | 85.39 | 68.69 | a | 70.21 | b | 86.19 | d | ||||||
1974 | 61.38 | b | 70.11 | a | 67.87 | 77.45 | a | 80.68 | 95.03 | 95.43 | a | 96.42 | 95.80 | 80.06 | 74.69 | a | 64.68 | c | 79.97 | |||||||
1975 | 68.19 | 66.39 | 65.87 | 65.66 | a | 82.61 | 87.90 | 97.16 | 97.81 | 94.86 | a | 81.26 | 76.20 | 68.68 | 79.38 | |||||||||||
1976 | 72.19 | 66.79 | 68.73 | a | 71.67 | 84.55 | 93.07 | 96.06 | 93.90 | b | 83.80 | 83.71 | 79.59 | a | 71.73 | a | 80.48 | |||||||||
1977 | 64.70 | a | 76.11 | a | 67.48 | 79.80 | 74.13 | 91.67 | 100.06 | 97.06 | 89.47 | 87.65 | 80.28 | a | 70.65 | 81.59 | ||||||||||
1978 | 63.68 | 66.84 | c | ----- | z | 72.86 | a | 86.57 | a | ----- | z | 100.61 | 97.28 | b | 90.37 | 89.26 | 70.59 | a | 64.26 | 80.23 | b | |||||
1979 | 59.42 | 66.24 | c | 67.97 | b | 76.87 | 82.68 | 94.03 | ----- | z | 94.32 | 99.83 | 83.39 | 74.03 | a | 73.23 | 79.27 | a | ||||||||
1980 | 65.42 | 71.50 | c | 68.43 | a | 77.47 | 74.30 | a | 90.55 | a | 101.87 | 96.35 | 93.57 | 88.86 | b | ----- | z | 74.58 | 82.08 | a | ||||||
1981 | 70.57 | a | 72.68 | 67.00 | g | 78.25 | b | 82.61 | 98.84 | e | 99.00 | 101.10 | a | 93.40 | 79.61 | 76.27 | 72.58 | 84.08 | a | |||||||
1982 | 62.29 | 68.43 | 65.13 | 73.17 | 77.81 | 81.00 | 96.77 | 98.26 | 90.71 | b | 83.04 | h | 68.97 | 64.27 | a | 76.98 | a | |||||||||
1983 | 68.68 | 65.07 | 64.47 | a | 68.47 | 82.23 | ----- | z | 97.29 | 96.17 | b | 94.00 | e | 84.17 | a | 71.03 | a | 65.77 | 77.94 | a | ||||||
1984 | 71.70 | a | 72.62 | 76.17 | a | 76.39 | g | 92.42 | 89.47 | 100.32 | 97.90 | 96.90 | 79.42 | 69.90 | 62.56 | d | 82.67 | a | ||||||||
1985 | 63.50 | a | 68.56 | a | 66.42 | 81.55 | a | ----- | z | 94.33 | 98.77 | 97.48 | 84.97 | 81.03 | 67.27 | 67.23 | e | 79.19 | a | |||||||
1986 | 73.10 | k | 69.35 | h | 69.92 | e | 77.45 | h | 87.50 | a | 94.28 | a | 96.58 | 102.13 | 85.10 | a | ----- | z | 79.03 | 70.16 | 85.59 | d | ||||
1987 | 65.00 | d | 64.85 | a | 68.15 | d | 84.32 | e | 84.19 | e | 93.86 | a | 91.33 | a | 96.60 | a | 93.50 | h | 82.26 | h | 69.24 | e | 59.43 | a | 77.70 | b |
1988 | 62.21 | c | 68.69 | c | 73.50 | a | 72.45 | a | 83.65 | e | 88.21 | b | 99.84 | 96.65 | 92.47 | 88.60 | a | 73.93 | 67.33 | a | 80.63 | |||||
1989 | 66.00 | b | 66.57 | 74.84 | 83.23 | 82.43 | a | 91.00 | a | ----- | z | 94.23 | 91.87 | ----- | z | 80.25 | b | 70.63 | a | 80.11 | b | |||||
1990 | 66.90 | j | ----- | z | 75.33 | j | 77.53 | k | 79.37 | a | 95.22 | g | 96.27 | a | 92.23 | 86.00 | u | 87.07 | a | 73.87 | 63.71 | 82.08 | f | |||
1991 | 64.65 | 75.08 | c | 64.71 | j | 74.44 | e | 78.80 | k | ----- | z | 92.52 | 95.14 | i | 93.52 | a | 86.94 | 76.55 | a | ----- | z | 80.53 | e | |||
1992 | 66.87 | 67.78 | k | 63.86 | b | 79.50 | h | 83.41 | i | 88.03 | a | 94.40 | f | ----- | z | 95.56 | c | 87.11 | l | 73.93 | a | 61.23 | 74.91 | f | ||
1993 | 61.21 | l | 61.89 | j | 72.37 | d | 78.82 | b | ----- | z | 90.85 | c | 88.14 | b | 94.74 | d | 92.00 | m | 81.96 | g | 74.65 | m | 67.20 | k | 84.98 | g |
1994 | 72.42 | l | 63.42 | i | 71.90 | k | 77.21 | p | 77.00 | k | 95.08 | d | 97.78 | h | 101.53 | a | 95.68 | h | 83.35 | h | 68.92 | e | 66.44 | f | 88.51 | i |
1995 | 61.61 | c | 73.14 | g | 68.43 | a | 75.00 | e | 76.00 | e | 90.94 | n | 99.96 | d | 103.60 | f | 100.42 | f | 90.14 | i | ----- | z | 70.93 | b | 75.32 | f |
1996 | 70.16 | f | 68.74 | b | 72.00 | h | 84.42 | f | 87.57 | h | ----- | z | 101.86 | i | 102.08 | f | 90.00 | c | 84.59 | i | 74.92 | f | 67.75 | k | 79.37 | j |
1997 | 63.96 | f | 67.81 | g | 81.13 | h | 79.92 | f | 93.10 | k | 89.76 | m | 98.63 | l | 103.89 | m | 98.81 | n | 84.58 | l | 73.24 | i | 65.24 | n | ----- | z |
1998 | 63.33 | j | 60.62 | b | 68.31 | b | 73.20 | 74.71 | g | 85.89 | b | ----- | z | 104.72 | b | 90.90 | a | 82.90 | 77.05 | i | 69.25 | c | 79.47 | d | ||
1999 | 71.42 | e | 69.27 | f | 71.74 | l | 72.14 | b | 84.79 | b | 91.58 | f | 98.24 | n | 101.38 | b | 95.06 | n | 94.60 | k | 77.41 | c | 73.07 | q | 81.43 | g |
2000 | 71.08 | f | 68.15 | c | 73.41 | b | 83.00 | h | 89.36 | c | 99.75 | n | 100.16 | f | 100.37 | l | 97.25 | n | 78.68 | l | 71.62 | n | 73.21 | l | 76.97 | i |
2001 | ----- | z | 59.44 | l | 71.25 | o | 76.75 | n | 89.61 | m | 99.12 | m | 98.00 | t | 101.54 | e | 97.36 | h | ----- | z | 72.50 | r | 63.38 | j | 101.54 | k |
2002 | 66.43 | j | 75.60 | m | 77.47 | l | 82.45 | a | 85.40 | p | 97.70 | t | 105.07 | p | ----- | z | 98.67 | r | 77.55 | k | 76.13 | o | ----- | z | 82.45 | k |
2003 | 79.67 | m | 71.69 | l | 73.68 | l | 71.64 | s | 83.64 | i | ----- | z | 100.67 | s | 100.92 | f | 99.46 | f | 94.20 | 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 | 65.76 | 68.63 | 69.02 | 75.96 | 82.75 | 91.49 | 97.15 | 97.67 | 91.78 | 84.33 | 73.84 | 67.77 | 80.41 | |||||||||||||
S.D. | 3.81 | 3.75 | 3.51 | 4.95 | 4.79 | 4.12 | 3.47 | 3.09 | 4.12 | 3.44 | 4.17 | 4.19 | 0.82 | |||||||||||||
SKEW | 0.30 | 0.20 | 0.56 | -0.11 | -0.13 | -0.69 | -1.07 | 0.50 | -0.27 | -0.01 | 0.06 | -0.30 | 0.24 | |||||||||||||
MAX | 72.19 | 76.11 | 76.17 | 84.32 | 92.42 | 98.84 | 101.87 | 104.72 | 99.83 | 89.26 | 80.28 | 74.58 | 81.59 | |||||||||||||
MIN | 59.42 | 60.62 | 63.86 | 65.66 | 74.13 | 81.00 | 88.14 | 92.23 | 83.80 | 79.42 | 67.27 | 59.43 | 79.38 | |||||||||||||
YRS | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 23 | 20 | 16 | 21 | 21 | 5 |