YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 96.00 | o | 91.97 | a | 95.08 | e | 92.07 | a | 80.10 | 64.67 | 61.23 | 80.85 | f | |||
1960 | 58.00 | 60.34 | 70.16 | 82.73 | 89.26 | 97.07 | 93.81 | 93.81 | 89.73 | 82.39 | 70.23 | 53.58 | 78.43 | |||||||||||||
1961 | 55.26 | 67.36 | 74.16 | 83.10 | 90.10 | 92.03 | a | 91.55 | 92.97 | 89.17 | 82.26 | 61.77 | 60.52 | 78.35 | ||||||||||||
1962 | 57.65 | 73.75 | 69.71 | 81.90 | 92.94 | 93.60 | 95.45 | 97.94 | 89.03 | 82.68 | 71.43 | 60.48 | 80.55 | |||||||||||||
1963 | 60.00 | 68.04 | 77.23 | 86.93 | 90.97 | 93.83 | 97.16 | 95.23 | 89.43 | 84.87 | 69.70 | 54.68 | 80.67 | |||||||||||||
1964 | 61.03 | 60.90 | 74.03 | 83.80 | 90.39 | 95.43 | 97.23 | 96.87 | 86.13 | 80.26 | 70.73 | 63.87 | 80.06 | |||||||||||||
1965 | 65.13 | 61.86 | 67.61 | 86.03 | 87.39 | 92.60 | 96.29 | 92.84 | 89.50 | 80.84 | 74.50 | 63.68 | 79.86 | |||||||||||||
1966 | 54.71 | 60.71 | 76.23 | 80.90 | 86.71 | 92.07 | 97.45 | 92.77 | 88.03 | 77.77 | 74.80 | 61.39 | 78.63 | |||||||||||||
1967 | 64.61 | 67.68 | 81.35 | 85.97 | 89.58 | 94.30 | 94.61 | 91.58 | 85.00 | a | 81.77 | 68.70 | 57.45 | 80.22 | ||||||||||||
1968 | 58.06 | 62.00 | 70.32 | 78.87 | 88.65 | 94.63 | 91.29 | 91.97 | 86.60 | 81.32 | 65.40 | 63.06 | 77.68 | |||||||||||||
1969 | 67.39 | 65.86 | 65.42 | 82.17 | 87.87 | 93.97 | 98.06 | 96.20 | a | 89.17 | 76.00 | 66.90 | 64.06 | 79.42 | ||||||||||||
1970 | 61.87 | 65.29 | ----- | z | ----- | z | 87.71 | 91.03 | 95.35 | n | 98.45 | 88.33 | 74.39 | 71.04 | b | 68.10 | 78.47 | c | ||||||||
1971 | 71.60 | f | 69.96 | 79.77 | 83.10 | 91.52 | 95.00 | 98.00 | 91.06 | 90.28 | a | 82.35 | 72.45 | a | 66.50 | a | 83.64 | a | ||||||||
1972 | 66.39 | 72.59 | 84.29 | 92.23 | 88.48 | 98.55 | a | 98.84 | 95.06 | 93.07 | a | 84.00 | 67.81 | c | ----- | z | 85.57 | a | ||||||||
1973 | 59.07 | p | 57.28 | c | 72.73 | a | 76.69 | a | ----- | z | ----- | z | ----- | z | ----- | z | 89.14 | w | 85.65 | 76.97 | ----- | z | 73.86 | g | ||
1974 | 62.33 | a | 68.79 | 83.16 | 82.13 | 92.29 | ----- | z | 97.10 | 93.55 | 79.03 | 77.45 | 68.00 | 58.77 | a | 78.42 | a | |||||||||
1975 | 61.94 | 64.89 | a | 73.52 | 81.53 | 88.71 | 97.10 | 92.94 | 96.61 | 85.07 | a | 85.88 | g | 74.35 | d | 64.42 | 80.10 | a | ||||||||
1976 | 62.91 | i | 74.67 | b | 76.52 | b | 83.67 | 87.27 | i | 95.97 | a | 90.35 | 95.97 | 85.07 | 73.61 | 59.27 | 59.48 | 79.46 | b | |||||||
1977 | 53.19 | 66.04 | 72.61 | 80.13 | 90.35 | 97.00 | 98.16 | 100.71 | 98.20 | 81.68 | 73.03 | 66.48 | 81.47 | |||||||||||||
1978 | 54.29 | 57.61 | 75.16 | 87.93 | a | 90.35 | 96.13 | 99.53 | a | 94.94 | 84.85 | c | 79.69 | e | 65.71 | b | ----- | z | 80.56 | a | ||||||
1979 | 57.14 | j | 64.36 | c | 73.90 | a | 83.63 | 89.00 | b | ----- | z | 97.90 | a | 94.26 | 90.83 | 88.35 | 66.93 | 60.52 | 80.97 | b | ||||||
1980 | 61.61 | 63.76 | 72.45 | 80.77 | 88.19 | 101.30 | 101.84 | 95.81 | 88.20 | 77.68 | 63.90 | 63.06 | 79.88 | |||||||||||||
1981 | 57.26 | 65.86 | 67.77 | a | 81.83 | g | 87.32 | 94.83 | 96.74 | 92.19 | 88.60 | 78.33 | d | 74.60 | 65.12 | e | 78.97 | a | ||||||||
1982 | 60.00 | 61.75 | 75.23 | 78.67 | 84.77 | i | 95.74 | c | 98.85 | k | 97.92 | f | 93.65 | d | 86.12 | e | 67.37 | c | 56.15 | d | 74.96 | c | ||||
1983 | 58.54 | c | 63.79 | d | ----- | z | 78.69 | q | 90.71 | j | 94.00 | o | 100.29 | q | 97.92 | f | 91.32 | h | 81.55 | i | 72.07 | o | 65.58 | s | 61.16 | j |
1984 | ----- | z | ----- | z | ----- | z | 81.34 | a | 88.94 | 93.63 | 97.52 | 96.42 | 88.90 | 75.65 | 66.33 | 60.87 | 83.29 | c | ||||||||
1985 | 54.71 | 58.36 | 72.87 | 83.23 | 92.10 | 94.93 | 99.87 | 101.16 | 91.43 | 79.48 | 73.43 | 62.48 | 80.34 | |||||||||||||
1986 | 65.94 | 70.39 | 79.19 | 88.47 | 92.26 | 94.07 | 98.65 | 96.35 | 91.03 | 77.55 | 68.07 | a | 58.27 | a | 81.69 | |||||||||||
1987 | 60.29 | 63.18 | 68.35 | 78.33 | 86.32 | 93.50 | 97.35 | 98.90 | 90.90 | 86.26 | 70.80 | 62.23 | 79.70 | |||||||||||||
1988 | 56.65 | 67.10 | 76.19 | 83.90 | 90.13 | 96.90 | 96.90 | 96.65 | 91.87 | 85.42 | 75.93 | 62.26 | 81.66 | |||||||||||||
1989 | 63.55 | 63.82 | 78.06 | 86.97 | 94.29 | 96.93 | 101.06 | 97.74 | 90.83 | 86.29 | 74.13 | 57.19 | 82.57 | |||||||||||||
1990 | 66.61 | 70.96 | 72.06 | 81.70 | 91.32 | 105.20 | 94.97 | 95.26 | 91.57 | 83.26 | 73.07 | 61.65 | 82.30 | |||||||||||||
1991 | 55.77 | 70.04 | 75.97 | 85.57 | 95.23 | 100.57 | 96.19 | 97.03 | 85.93 | 86.55 | 66.23 | 60.29 | 81.28 | |||||||||||||
1992 | 57.48 | 69.00 | b | 78.16 | 83.43 | 84.70 | a | 97.07 | 99.55 | 96.84 | 96.13 | 87.84 | 68.93 | a | 63.10 | 81.85 | ||||||||||
1993 | 59.48 | 65.50 | 75.26 | 84.30 | 93.87 | 99.30 | 101.58 | 101.97 | 92.07 | 83.35 | 69.20 | 65.68 | 82.63 | |||||||||||||
1994 | 63.68 | 67.61 | 76.23 | 84.47 | 89.45 | 104.10 | 101.32 | 97.58 | 89.53 | 81.87 | 72.73 | 64.45 | 82.75 | |||||||||||||
1995 | 61.06 | 70.71 | 71.94 | 82.23 | 90.03 | 95.57 | 101.10 | 97.26 | 89.53 | 85.00 | 72.50 | 62.68 | 81.63 | |||||||||||||
1996 | 63.68 | 70.14 | 72.29 | 82.43 | 100.10 | 100.73 | 99.90 | 93.68 | 87.87 | 82.52 | 71.13 | 65.74 | 82.52 | |||||||||||||
1997 | 57.00 | 60.39 | 76.61 | 75.30 | 88.68 | 95.17 | 99.71 | 99.52 | 92.53 | 82.29 | 67.40 | 56.97 | 79.30 | |||||||||||||
1998 | 66.58 | 67.11 | 72.84 | 83.07 | 98.84 | 105.60 | 105.94 | 96.55 | 95.67 | 85.55 | 72.03 | 60.00 | 84.15 | |||||||||||||
1999 | 68.00 | 75.89 | 75.52 | 85.57 | 92.52 | 96.07 | 98.52 | 101.06 | 92.60 | 84.19 | 76.53 | 61.97 | 84.04 | |||||||||||||
2000 | 65.42 | 77.14 | 80.81 | 86.93 | 98.29 | 93.68 | k | 102.55 | 99.52 | 97.03 | ----- | z | ----- | z | ----- | z | 88.46 | d | ||||||||
2001 | ----- | z | ----- | z | 67.14 | j | 86.72 | a | 94.35 | 100.21 | a | 101.39 | 96.65 | 92.10 | 84.35 | 68.13 | 61.48 | f | 90.49 | d | ||||||
2002 | 63.00 | 61.89 | 69.81 | e | 86.75 | b | 91.58 | e | 97.37 | 95.65 | 99.10 | 91.53 | 73.87 | 64.20 | 60.07 | d | 79.57 | |||||||||
2003 | 61.68 | 61.82 | 74.74 | 86.10 | 93.16 | 95.60 | 96.32 | 95.85 | e | 89.07 | 81.29 | 70.10 | 63.88 | f | 82.34 | a | ||||||||||
2004 | 60.68 | 59.08 | c | 73.84 | 76.90 | 92.81 | 96.37 | 96.13 | 93.90 | 86.27 | 78.26 | h | 62.77 | 59.67 | g | 79.87 | b | |||||||||
2005 | 63.45 | 60.50 | 71.48 | 81.50 | 88.45 | 97.57 | 97.13 | 93.81 | 95.97 | 78.27 | a | 74.03 | 58.91 | h | 82.01 | a | ||||||||||
2006 | ----- | z | 66.59 | a | 76.31 | b | 87.33 | c | 95.65 | e | 97.83 | 99.13 | 95.17 | a | 86.93 | 81.71 | 73.73 | 60.52 | f | 86.04 | b | |||||
2007 | 60.46 | g | 63.22 | e | 75.61 | 79.17 | a | 83.34 | b | 94.18 | h | 92.50 | c | 94.71 | c | 92.11 | l | 87.57 | a | 71.40 | 65.78 | h | 80.94 | d | ||
2008 | 61.32 | 76.14 | o | 76.40 | a | 85.40 | 93.03 | a | 102.48 | a | 94.26 | 94.81 | 86.95 | j | 80.93 | b | 72.93 | a | 65.04 | h | 84.62 | c | ||||
2009 | 62.57 | x | ----- | z | ----- | z | 91.17 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.86 | 65.77 | 74.53 | 83.26 | 90.83 | 96.72 | 97.42 | 96.03 | 89.92 | 81.75 | 69.92 | 61.54 | 80.83 | |||||||||||||
S.D. | 3.99 | 4.87 | 4.02 | 3.40 | 3.47 | 3.42 | 3.25 | 2.62 | 3.63 | 3.79 | 4.08 | 3.34 | 1.69 | |||||||||||||
SKEW | -0.07 | 0.35 | 0.15 | -0.08 | 0.57 | 0.92 | -0.06 | 0.30 | -0.13 | -0.36 | -0.44 | -0.36 | 0.12 | |||||||||||||
MAX | 68.00 | 77.14 | 84.29 | 92.23 | 100.10 | 105.60 | 105.94 | 101.97 | 98.20 | 88.35 | 76.97 | 68.10 | 84.15 | |||||||||||||
MIN | 53.19 | 57.28 | 65.42 | 75.30 | 83.34 | 91.03 | 90.35 | 91.06 | 79.03 | 73.61 | 59.27 | 53.58 | 77.68 | |||||||||||||
YRS | 41 | 46 | 45 | 46 | 45 | 43 | 46 | 47 | 46 | 46 | 48 | 38 | 28 |