YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 71.90 | u | 70.47 | 75.07 | a | 77.52 | 74.10 | 67.30 | a | 62.97 | 55.10 | 68.93 | e | |||||
1970 | 55.00 | 63.07 | 60.90 | a | 58.43 | 67.54 | g | 73.37 | 80.00 | 76.84 | 74.87 | 69.26 | 56.17 | 49.10 | 65.18 | a | ||||||||||
1971 | 51.57 | a | 55.39 | 55.10 | 59.76 | a | 63.45 | 67.43 | 75.94 | 77.97 | 75.27 | 65.19 | 57.27 | 48.58 | 62.74 | |||||||||||
1972 | 49.74 | 56.31 | 61.23 | 58.80 | 68.13 | 74.57 | 81.48 | 81.10 | 74.77 | ----- | z | 58.97 | a | 48.58 | 64.88 | a | ||||||||||
1973 | 50.74 | 59.79 | 55.19 | 65.50 | 70.13 | 74.00 | a | ----- | z | 75.52 | 77.00 | 67.65 | 52.87 | 54.19 | 63.87 | a | ||||||||||
1974 | 50.65 | 54.25 | 59.52 | 61.47 | 65.69 | b | 71.52 | a | 77.26 | 78.22 | m | 84.67 | i | 72.97 | 60.43 | 53.94 | 62.77 | b | ||||||||
1975 | 54.48 | 54.89 | 55.71 | 56.90 | 67.65 | 72.97 | 76.81 | 75.74 | 80.33 | 63.65 | 56.07 | a | 54.26 | 64.12 | ||||||||||||
1976 | 55.06 | 53.71 | a | 56.42 | 59.97 | 70.52 | 70.43 | 77.39 | 75.06 | 78.07 | 71.52 | 63.20 | 55.52 | 65.57 | ||||||||||||
1977 | 56.35 | 62.00 | 55.65 | 65.03 | 61.74 | 74.57 | 76.84 | 80.39 | 70.40 | 68.16 | 55.57 | 55.29 | 65.17 | |||||||||||||
1978 | 56.77 | 57.46 | 64.03 | 60.37 | 67.39 | 74.30 | 78.58 | 78.97 | a | 73.27 | 74.55 | 57.07 | 49.06 | 65.98 | ||||||||||||
1979 | 51.48 | 52.18 | 63.24 | j | 61.17 | 69.68 | 75.30 | 78.87 | 77.52 | 80.63 | 71.50 | a | 59.33 | 57.81 | 66.86 | a | ||||||||||
1980 | 52.94 | 60.14 | 57.45 | 64.53 | 66.32 | 67.83 | a | 76.81 | 76.90 | a | 77.79 | a | 73.39 | 61.20 | 57.26 | 66.05 | ||||||||||
1981 | 61.45 | 61.07 | 61.90 | 63.77 | 67.00 | 73.53 | 79.26 | 80.32 | 77.67 | 68.39 | 60.47 | 54.29 | 67.43 | |||||||||||||
1982 | 51.90 | 56.46 | 57.26 | 61.23 | 70.17 | a | 71.66 | a | 74.03 | a | 78.61 | 78.29 | f | 67.60 | a | 57.10 | a | 53.20 | a | 63.57 | a | |||||
1983 | 55.77 | 57.64 | 59.40 | a | 63.37 | 69.69 | b | 72.40 | 72.97 | 77.83 | a | 77.20 | 70.38 | b | 57.72 | a | 51.77 | a | 65.51 | |||||||
1984 | 56.30 | a | 57.14 | a | 61.23 | 59.40 | 66.83 | b | 70.55 | a | 79.93 | a | 79.00 | 78.97 | a | 64.69 | b | 55.60 | 51.03 | a | 65.06 | |||||
1985 | 56.77 | 56.18 | 55.87 | 65.03 | a | 67.37 | a | 76.50 | 80.50 | a | 81.16 | 72.53 | 68.00 | 51.03 | a | 53.87 | 65.40 | |||||||||
1986 | 56.58 | 57.54 | 65.90 | 61.21 | a | 68.83 | a | 76.04 | c | 76.42 | 81.86 | b | 73.31 | a | 71.63 | d | 60.41 | a | 55.33 | a | 67.09 | |||||
1987 | ----- | z | 56.96 | 61.17 | a | 67.83 | 71.34 | b | 76.89 | b | 74.81 | 83.39 | 78.52 | a | 76.13 | a | 60.31 | a | 50.00 | 68.85 | a | |||||
1988 | 53.23 | 60.38 | 61.03 | 63.97 | 66.13 | 71.57 | 82.07 | c | 80.42 | 78.79 | a | 73.40 | a | 56.41 | a | 51.57 | a | 66.58 | ||||||||
1989 | 52.68 | 50.81 | a | 57.60 | a | 70.66 | a | 67.90 | 74.88 | d | 74.29 | c | 77.10 | a | 79.54 | f | 69.45 | b | ----- | z | 50.40 | a | 64.58 | b | ||
1990 | 50.48 | b | 49.64 | c | 60.28 | b | 63.93 | b | 66.48 | d | 70.42 | k | 80.96 | e | 79.43 | c | 76.93 | c | 65.00 | c | 54.00 | k | 43.68 | c | 63.68 | b |
1991 | 48.65 | 59.04 | e | 55.15 | e | 60.38 | n | 63.27 | e | 70.00 | t | 80.06 | m | 80.53 | p | 86.47 | m | 73.36 | c | 60.25 | n | 50.00 | f | 59.89 | g | |
1992 | 51.27 | p | ----- | z | 64.23 | i | ----- | z | ----- | z | ----- | z | 78.39 | m | 84.06 | o | 77.96 | g | 70.09 | h | 69.78 | g | ----- | z | ----- | z |
1993 | 48.83 | m | 53.12 | b | 60.50 | m | 59.93 | p | 69.94 | o | 69.25 | j | 74.00 | d | 77.95 | k | 76.68 | k | 67.82 | c | 53.13 | 49.20 | f | 62.02 | h | |
1994 | 53.27 | a | 51.00 | c | 61.08 | f | 66.33 | x | 68.00 | p | 71.00 | y | 78.83 | g | 80.24 | n | 77.47 | m | 65.62 | g | 49.05 | h | 48.93 | q | 52.13 | j |
1995 | 54.94 | o | 59.73 | m | 59.53 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.12 | g | 57.53 | o | 53.71 | j | ----- | z |
1996 | 48.73 | p | 56.89 | j | ----- | z | 69.20 | y | 63.71 | n | 75.11 | k | 82.37 | l | 81.08 | g | 75.50 | h | 72.19 | o | 55.50 | h | 51.33 | g | ----- | z |
1997 | 51.58 | g | 53.33 | j | 59.55 | i | 62.35 | m | 74.37 | d | 73.19 | n | 79.56 | v | 81.90 | j | 75.27 | h | 63.70 | h | 56.10 | j | 49.94 | n | 74.37 | k |
1998 | 52.64 | i | 52.94 | l | 59.50 | o | 61.95 | j | 60.38 | j | 69.60 | o | 77.12 | w | 79.43 | j | 79.35 | d | 65.19 | e | 52.59 | h | 45.90 | b | 63.48 | i |
1999 | 49.38 | g | 50.62 | o | 56.00 | q | 64.29 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 53.72 | 56.51 | 58.95 | 62.49 | 67.73 | 72.89 | 77.47 | 78.70 | 76.49 | 69.42 | 57.78 | 52.16 | 65.56 | |||||||||||||
S.D. | 3.04 | 3.61 | 3.13 | 3.34 | 2.86 | 2.61 | 2.67 | 2.22 | 2.79 | 3.46 | 3.23 | 3.59 | 1.27 | |||||||||||||
SKEW | 0.48 | -0.12 | 0.42 | 0.55 | 0.01 | -0.47 | 0.08 | 0.24 | -0.45 | 0.14 | -0.21 | -0.55 | -0.66 | |||||||||||||
MAX | 61.45 | 63.07 | 65.90 | 70.66 | 74.37 | 76.89 | 82.07 | 83.39 | 80.63 | 76.13 | 63.20 | 57.81 | 67.43 | |||||||||||||
MIN | 48.65 | 49.64 | 55.10 | 56.90 | 61.74 | 67.43 | 72.97 | 75.06 | 70.40 | 63.65 | 51.03 | 43.68 | 62.74 | |||||||||||||
YRS | 22 | 24 | 21 | 21 | 22 | 21 | 22 | 21 | 20 | 24 | 21 | 23 | 12 |