YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | 78.10 | 83.83 | 87.52 | 86.35 | 79.87 | 76.74 | 60.03 | 45.90 | 74.79 | d | ||||||||
1968 | 49.39 | 51.83 | 60.97 | a | 71.56 | c | 74.16 | 88.17 | 90.19 | 89.10 | 84.90 | 76.00 | 56.43 | 50.13 | 70.23 | |||||||||||
1969 | 54.19 | 52.82 | 49.00 | 71.57 | 78.77 | 83.13 | 94.32 | 92.42 | 80.30 | 64.81 | 60.47 | 55.42 | e | 69.77 | ||||||||||||
1970 | 47.13 | 57.86 | 55.68 | 67.60 | 82.32 | 87.97 | 92.13 | 92.68 | 83.88 | e | 62.29 | j | 58.97 | 58.32 | 71.32 | a | ||||||||||
1971 | 50.71 | 51.54 | 62.94 | 71.37 | 79.87 | 91.23 | 90.07 | a | 84.77 | 84.53 | k | 72.03 | 60.63 | 50.68 | 69.62 | a | ||||||||||
1972 | 53.90 | 59.33 | b | 70.16 | 75.43 | 79.00 | 88.37 | 86.10 | 85.52 | 79.60 | 71.20 | a | 48.17 | 45.65 | 70.20 | |||||||||||
1973 | 44.35 | 51.64 | 57.81 | 61.87 | 75.10 | 87.60 | 91.48 | 92.42 | 80.90 | 75.61 | c | 64.21 | a | 52.97 | a | 69.66 | ||||||||||
1974 | ----- | z | 60.30 | h | 71.90 | 75.86 | b | 89.76 | b | 91.41 | a | 93.43 | c | 83.88 | g | 74.30 | g | 71.23 | e | 61.96 | e | 49.68 | c | 75.65 | d | |
1975 | 53.33 | d | 48.54 | o | 63.04 | h | 67.12 | n | 82.73 | i | 90.28 | l | 88.42 | l | 92.50 | i | 81.71 | b | 81.12 | e | 68.69 | q | 61.50 | y | 72.05 | i |
1976 | 55.05 | k | 64.74 | f | 63.93 | p | 74.89 | l | 79.09 | h | 90.58 | d | 90.95 | l | 91.90 | u | 80.53 | m | 71.87 | p | ----- | z | 59.91 | t | 90.58 | k |
1977 | 47.05 | i | 60.56 | c | 66.92 | g | 71.52 | a | 81.84 | 94.17 | ----- | z | 91.57 | c | 87.15 | c | 77.56 | d | 65.84 | e | 57.39 | m | 78.77 | d | ||
1978 | 43.72 | m | 44.95 | g | 66.80 | f | 76.45 | a | 79.19 | d | 87.78 | l | 98.50 | y | 91.57 | q | 78.22 | u | 79.96 | f | 60.84 | k | 46.62 | w | 77.82 | j |
1979 | 40.32 | f | 57.20 | c | 64.62 | g | 72.24 | e | 81.00 | q | 92.12 | d | 94.10 | j | 88.81 | j | 85.64 | h | 82.52 | j | 57.24 | m | 56.90 | j | 73.85 | i |
1980 | 49.63 | d | 57.00 | f | 63.12 | n | 71.39 | b | 78.08 | f | 97.15 | d | 99.83 | g | 93.11 | c | 87.59 | h | 75.88 | e | 59.44 | e | 59.77 | i | 74.43 | f |
1981 | 55.88 | e | 63.58 | i | 62.50 | i | 77.25 | b | 80.71 | 94.47 | 94.42 | 86.86 | c | 80.80 | 68.37 | a | ----- | z | ----- | z | 79.84 | d | ||||
1982 | ----- | z | ----- | z | ----- | z | 71.72 | a | 77.84 | 81.62 | a | 91.19 | 90.87 | 82.44 | e | 71.05 | k | 58.93 | a | 48.07 | d | 75.34 | d | |||
1983 | 46.61 | h | 50.93 | m | 56.93 | c | 64.17 | f | 75.52 | h | 86.40 | j | 95.35 | 97.00 | f | ----- | z | 74.16 | f | 64.00 | b | ----- | z | 72.09 | i | |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 50.90 | 52.54 | 63.97 | 71.14 | a | 77.87 | 94.40 | 91.50 | a | 90.43 | c | 84.37 | 71.39 | 58.70 | 55.00 | 71.85 | ||||||||||
1995 | 49.23 | 57.96 | 60.94 | 66.67 | 72.03 | a | 84.70 | 91.52 | 90.84 | 80.37 | 73.55 | 63.20 | 50.00 | 70.08 | ||||||||||||
1996 | 50.42 | 56.45 | 58.29 | 72.03 | 85.81 | 89.23 | 88.74 | 85.23 | 77.07 | 69.87 | 58.59 | a | 49.68 | 70.12 | ||||||||||||
1997 | 44.45 | 48.32 | 65.58 | 59.60 | 75.77 | 84.97 | 91.74 | 85.90 | 82.37 | 69.55 | 53.47 | 43.26 | 67.08 | |||||||||||||
1998 | 51.77 | 51.32 | 54.90 | a | 66.07 | 84.90 | 91.90 | 95.16 | 88.68 | 89.00 | 70.97 | 59.97 | 50.10 | 71.23 | ||||||||||||
1999 | 51.74 | 60.43 | 57.68 | 67.03 | 73.97 | 84.07 | 90.13 | 91.10 | 79.47 | 72.29 | 67.47 | 50.47 | a | 70.49 | ||||||||||||
2000 | 53.45 | 61.28 | 60.74 | 70.50 | 82.42 | 84.43 | 92.87 | 94.74 | 88.43 | 69.37 | a | 50.20 | 44.00 | 71.04 | ||||||||||||
2001 | 40.35 | 49.36 | 55.20 | a | 74.63 | 76.39 | 88.76 | a | 96.58 | 90.55 | 84.77 | ----- | z | 60.80 | 52.20 | a | 69.96 | a | ||||||||
2002 | 49.52 | 51.21 | 59.84 | 72.80 | 81.77 | a | 92.70 | 91.00 | 91.58 | 81.87 | 64.13 | 55.27 | 45.55 | 69.77 | ||||||||||||
2003 | 51.68 | 49.57 | 61.26 | 72.90 | 82.48 | 83.24 | a | 95.52 | 93.26 | 78.67 | 73.68 | 56.80 | 52.61 | 70.97 | ||||||||||||
2004 | 50.52 | 52.00 | 64.00 | 65.67 | 83.81 | 87.70 | 87.77 | 85.81 | 81.27 | 71.00 | 50.57 | 49.87 | 69.16 | |||||||||||||
2005 | 49.87 | 51.50 | 56.32 | c | 67.43 | 74.77 | 87.07 | 91.84 | 86.26 | 84.70 | 71.06 | 62.90 | 49.42 | 69.43 | ||||||||||||
2006 | 56.97 | 54.61 | 61.19 | 76.37 | 84.23 | 92.60 | 92.32 | 87.00 | 75.97 | 69.97 | 63.44 | l | ----- | z | 75.12 | b | ||||||||||
2007 | ----- | z | 59.00 | r | 67.24 | f | 61.05 | j | 77.63 | l | 87.44 | n | 92.52 | h | 98.29 | x | 88.35 | m | 81.14 | x | 61.87 | o | 48.38 | j | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 50.43 | 54.25 | 60.25 | 70.72 | 79.71 | 88.80 | 91.79 | 89.46 | 82.17 | 72.06 | 59.04 | 49.95 | 70.07 | |||||||||||||
S.D. | 3.85 | 4.06 | 5.22 | 4.42 | 4.28 | 4.15 | 2.67 | 3.06 | 3.35 | 3.92 | 4.87 | 3.78 | 1.10 | |||||||||||||
SKEW | -0.77 | 0.40 | 0.32 | -0.71 | 0.25 | 0.08 | -0.19 | -0.10 | 0.34 | 0.15 | -0.58 | 0.18 | -1.05 | |||||||||||||
MAX | 56.97 | 61.28 | 71.90 | 77.25 | 89.76 | 97.15 | 96.58 | 94.74 | 89.00 | 81.12 | 67.47 | 58.32 | 71.85 | |||||||||||||
MIN | 40.35 | 48.32 | 49.00 | 59.60 | 72.03 | 81.62 | 86.10 | 84.77 | 75.97 | 64.13 | 48.17 | 43.26 | 67.08 | |||||||||||||
YRS | 22 | 21 | 21 | 26 | 25 | 27 | 24 | 24 | 23 | 23 | 24 | 21 | 15 |