YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | 81.87 | 93.03 | 86.29 | 89.48 | 85.87 | 86.42 | 74.23 | 68.19 | 83.17 | d | ||||||||
1951 | 58.39 | 60.14 | 65.94 | 72.87 | 83.03 | 91.37 | 94.16 | 88.94 | 91.07 | 79.29 | 65.90 | 59.16 | 75.85 | |||||||||||||
1952 | 60.23 | 59.59 | 59.10 | 72.20 | 84.81 | 92.03 | 93.16 | 88.77 | 90.27 | 85.87 | 63.00 | 57.16 | 75.52 | |||||||||||||
1953 | 64.81 | 61.32 | 68.39 | 73.57 | 78.03 | 93.70 | 89.13 | 91.42 | ----- | z | 79.97 | 70.37 | 58.61 | 75.39 | a | |||||||||||
1954 | 62.71 | 69.18 | 66.37 | a | 79.83 | 83.84 | 91.50 | 88.90 | 83.19 | 86.67 | 81.58 | 72.17 | 64.16 | 77.51 | ||||||||||||
1955 | 53.65 | 58.93 | 68.68 | 75.77 | 81.19 | 92.27 | 89.42 | 82.06 | 87.13 | 81.77 | 68.20 | 65.06 | 75.34 | |||||||||||||
1956 | 64.39 | 56.50 | a | 72.18 | c | 74.18 | h | 86.72 | b | 94.27 | 91.23 | 89.19 | 92.65 | j | 80.26 | 67.27 | 61.23 | 76.32 | b | |||||||
1957 | 59.61 | 68.42 | b | 65.55 | b | 74.27 | 79.13 | a | 93.53 | 91.55 | 87.45 | 88.67 | c | 75.04 | e | 62.42 | r | 63.78 | m | 78.32 | b | |||||
1958 | 60.06 | m | 62.06 | j | 61.19 | j | 72.48 | e | 87.88 | g | 93.80 | 90.71 | 85.23 | 83.41 | c | 76.56 | d | 67.48 | i | 72.91 | t | 83.70 | f | |||
1959 | 64.41 | d | 61.58 | d | 69.30 | k | 79.38 | d | 81.93 | c | 93.63 | 90.00 | 82.32 | 85.73 | 78.58 | 65.23 | 58.74 | 76.50 | a | |||||||
1960 | 54.23 | 56.69 | 72.32 | 77.00 | a | 83.58 | 95.30 | 93.52 | 89.90 | 88.57 | 75.27 | a | 69.63 | ----- | z | 77.82 | a | |||||||||
1961 | 61.94 | 63.07 | 68.17 | a | 77.21 | a | 85.00 | 94.83 | 91.77 | 85.65 | 81.31 | a | 75.68 | 61.87 | 56.36 | c | 75.24 | |||||||||
1962 | 56.45 | 62.41 | a | 61.29 | 79.13 | 81.90 | 90.50 | 90.26 | 93.67 | a | 85.70 | 79.71 | 70.13 | 59.68 | 75.90 | |||||||||||
1963 | 56.13 | 65.82 | 67.03 | 73.37 | 86.60 | a | 90.33 | 93.32 | 83.13 | 85.63 | 79.86 | c | 66.07 | 60.87 | 75.68 | |||||||||||
1964 | 58.23 | i | 57.41 | 62.13 | 70.63 | 83.65 | 90.93 | 90.74 | 83.52 | 80.70 | 79.58 | 64.52 | a | 60.94 | 74.98 | a | ||||||||||
1965 | 62.48 | 60.82 | 64.42 | 73.90 | 80.94 | 87.73 | 90.45 | 90.61 | 83.63 | 82.90 | 70.57 | 59.00 | 75.62 | |||||||||||||
1966 | 55.81 | 56.93 | 70.06 | 76.10 | 85.94 | 92.30 | 91.77 | 87.00 | 83.03 | 78.13 | 71.37 | 61.84 | 75.86 | |||||||||||||
1967 | 63.32 | 68.00 | a | 73.81 | 73.97 | 82.94 | 89.69 | a | 89.58 | 89.31 | b | 86.00 | 81.10 | 71.67 | 56.58 | 77.16 | ||||||||||
1968 | 60.26 | 66.38 | 66.16 | 71.20 | 83.61 | 94.63 | 90.90 | a | 85.84 | 88.27 | 83.19 | 67.80 | 64.90 | j | 78.02 | a | ||||||||||
1969 | 63.17 | h | 63.23 | f | 68.30 | h | 79.13 | g | 83.84 | f | 93.10 | 92.10 | 91.71 | 89.67 | c | 77.52 | 66.87 | 62.20 | f | 85.16 | f | |||||
1970 | 63.29 | c | 67.21 | 65.06 | 72.57 | 86.97 | 94.53 | 94.35 | 89.32 | 83.50 | 75.81 | ----- | z | 66.43 | j | 79.26 | b | |||||||||
1971 | 64.04 | c | 63.21 | 72.81 | 75.83 | 82.10 | 92.13 | 94.19 | 85.68 | f | 85.80 | 73.29 | 66.47 | 55.80 | f | 76.99 | b | |||||||||
1972 | 64.17 | b | 67.86 | a | 77.00 | b | 78.60 | 83.45 | 90.21 | a | 93.32 | 90.32 | i | 86.27 | 76.23 | e | 64.24 | a | 60.65 | k | 78.13 | b | ||||
1973 | 60.48 | b | 61.52 | a | 60.32 | 73.46 | f | 85.29 | 92.71 | b | 91.68 | 92.13 | 92.80 | j | 82.76 | f | 70.80 | 66.88 | g | 76.87 | d | |||||
1974 | 59.77 | 65.68 | 70.71 | 77.83 | 86.13 | a | 97.80 | 88.16 | 88.39 | 85.17 | 78.45 | 68.03 | 59.19 | 77.11 | ||||||||||||
1975 | 62.97 | 61.75 | 66.13 | 71.30 | 82.55 | 92.87 | 90.58 | 93.00 | 85.40 | 81.16 | 72.00 | 64.20 | f | 78.15 | a | |||||||||||
1976 | 62.42 | 67.28 | 67.83 | a | 74.38 | f | ----- | z | 93.90 | i | 88.73 | a | 89.90 | b | 84.33 | f | 77.11 | c | 66.85 | c | 60.50 | a | 72.58 | d | ||
1977 | 56.90 | 68.61 | 66.10 | 78.00 | 81.13 | 94.03 | 91.81 | 90.32 | 88.20 | 80.32 | 71.27 | 65.74 | 77.70 | |||||||||||||
1978 | 60.86 | i | 62.57 | 70.77 | 77.33 | 83.16 | 96.47 | 95.55 | 91.61 | 87.13 | 80.81 | 66.47 | 56.65 | 78.96 | a | |||||||||||
1979 | 55.48 | 64.46 | 66.94 | 79.53 | 81.06 | 92.83 | 97.52 | 87.76 | b | 90.83 | a | 84.52 | 68.47 | 66.97 | 78.03 | |||||||||||
1980 | 62.90 | a | 69.97 | 67.52 | 78.77 | 83.16 | 100.00 | 99.25 | k | 94.86 | c | 89.36 | e | ----- | z | 70.93 | 69.44 | d | 78.69 | b | ||||||
1981 | 62.33 | j | 70.16 | c | 67.84 | 81.38 | f | 82.65 | 95.87 | 92.58 | 92.00 | s | ----- | z | 77.35 | k | 78.47 | k | 68.62 | o | 81.82 | g | ||||
1982 | 62.74 | l | ----- | z | ----- | z | ----- | z | 68.79 | q | 93.67 | o | 92.28 | f | 89.15 | d | 88.08 | f | 82.07 | p | 62.40 | y | ----- | z | 89.15 | k |
1983 | 60.67 | d | 59.50 | j | 63.29 | 67.23 | 83.13 | 91.20 | e | 93.94 | 88.74 | 87.07 | 75.10 | b | 64.83 | a | 62.26 | 76.13 | a | |||||||
1984 | 59.03 | 63.52 | 71.10 | a | 73.93 | a | 89.73 | a | 90.57 | 87.84 | 85.97 | 84.73 | 71.26 | 66.07 | 57.71 | 75.12 | ||||||||||
1985 | 54.32 | 60.59 | a | 68.83 | b | 77.43 | 85.06 | 95.80 | 93.45 | 89.74 | 83.33 | 76.41 | b | 65.48 | a | 63.20 | a | 76.14 | ||||||||
1986 | 66.94 | 64.50 | 70.77 | a | 76.97 | a | 85.43 | a | 92.77 | 87.42 | 88.48 | 85.23 | 76.42 | 67.57 | b | 58.13 | a | 76.72 | ||||||||
1987 | 59.10 | b | 59.18 | 65.72 | b | 76.24 | a | 79.39 | 93.00 | 92.00 | 86.42 | 83.52 | a | 81.77 | 66.20 | 57.74 | 75.02 | |||||||||
1988 | 59.03 | 65.21 | 68.58 | 72.73 | 82.81 | 93.10 | 91.03 | 85.19 | 85.93 | 80.60 | a | 67.67 | 58.77 | 75.89 | ||||||||||||
1989 | 57.39 | 66.50 | 74.13 | 82.73 | 86.29 | 93.53 | 95.23 | 88.10 | 89.20 | 77.48 | 69.50 | 61.39 | 78.46 | |||||||||||||
1990 | 59.55 | 58.71 | 68.35 | 75.60 | 81.81 | 94.77 | 85.43 | j | 82.42 | 83.37 | 78.03 | 67.93 | 57.10 | 73.42 | a | |||||||||||
1991 | 56.71 | 65.89 | 61.26 | 72.83 | 81.13 | 89.62 | a | 90.53 | a | 86.84 | 83.88 | f | 81.19 | 65.97 | 55.55 | 73.41 | a | |||||||||
1992 | 54.71 | 61.41 | 64.52 | 76.27 | 81.23 | 91.17 | 90.19 | 87.13 | a | 86.97 | 81.10 | 63.50 | 56.39 | 74.55 | ||||||||||||
1993 | 58.19 | 58.96 | 67.26 | 75.60 | 83.42 | 92.37 | 89.13 | 87.55 | 85.20 | 77.07 | a | 64.90 | 60.23 | 74.99 | ||||||||||||
1994 | 62.19 | 60.96 | 67.74 | 75.46 | b | 83.16 | 95.48 | a | 94.35 | 92.41 | b | 86.00 | a | 75.16 | 63.47 | 58.16 | 76.21 | |||||||||
1995 | 57.52 | 65.64 | 67.90 | 72.87 | 79.03 | 90.73 | 94.48 | 91.42 | 88.23 | 82.77 | 71.43 | 62.03 | 77.01 | |||||||||||||
1996 | 63.90 | 65.90 | 69.58 | 78.39 | b | 88.77 | 95.60 | 91.83 | g | 89.74 | 81.71 | b | 79.21 | b | 69.00 | a | 62.77 | 76.78 | a | |||||||
1997 | 57.77 | a | 63.32 | 73.77 | 73.60 | 87.29 | 91.47 | 94.06 | 88.97 | 87.69 | a | 77.26 | 68.90 | 53.48 | 76.47 | |||||||||||
1998 | 60.74 | 56.26 | a | 65.87 | 70.38 | a | 82.67 | a | 91.20 | 91.37 | d | 90.71 | 88.30 | 80.13 | 70.72 | a | 60.55 | 75.74 | ||||||||
1999 | 64.13 | 68.54 | 73.03 | 72.50 | 83.77 | 91.43 | 87.83 | a | 87.80 | a | 86.83 | 82.71 | 75.67 | 60.29 | 77.88 | |||||||||||
2000 | 65.55 | 68.24 | 68.48 | 81.52 | a | 90.13 | 90.45 | a | 91.26 | 87.32 | 89.33 | 73.77 | 59.07 | 64.32 | 77.45 | |||||||||||
2001 | 54.79 | b | 61.18 | 69.47 | a | 76.50 | b | 86.43 | c | 92.87 | 87.00 | a | 89.87 | a | 89.28 | a | 80.26 | 70.79 | a | 59.66 | b | 76.51 | ||||
2002 | 61.07 | a | 65.75 | 70.20 | a | 81.10 | 86.42 | 96.50 | 92.52 | f | 89.84 | 86.90 | 76.87 | 70.07 | 56.97 | b | 76.52 | a | ||||||||
2003 | 67.23 | a | 60.61 | 66.97 | a | 76.17 | a | 87.33 | a | 93.73 | 94.89 | c | 88.20 | f | 87.63 | 81.65 | 67.41 | a | 63.53 | a | 77.01 | a | ||||
2004 | 59.10 | b | 58.55 | 73.45 | 72.27 | 85.30 | a | 91.93 | 89.90 | 88.10 | a | 86.73 | 76.58 | 62.61 | b | 59.90 | 75.37 | |||||||||
2005 | 60.87 | 58.75 | 65.16 | 76.68 | b | 85.37 | a | 92.47 | 94.62 | b | 85.12 | e | 88.66 | a | ----- | z | ----- | z | ----- | z | 78.63 | c | ||||
2006 | 65.71 | ----- | z | 65.10 | a | ----- | z | 87.67 | d | 94.14 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.83 | i | |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.29 | m | 80.42 | e | 72.61 | b | 57.48 | j | 76.52 | j |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.43 | ----- | z | 70.43 | k | |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | 86.10 | ----- | z | 91.48 | ----- | z | 87.38 | a | 76.81 | ----- | z | ----- | z | 85.44 | h | |||
2010 | 61.06 | ----- | z | 65.23 | 72.28 | a | ----- | z | 86.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.14 | h | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.36 | 63.17 | 67.86 | 75.40 | 83.91 | 92.83 | 91.53 | 88.32 | 86.44 | 78.98 | 67.96 | 60.38 | 76.28 | |||||||||||||
S.D. | 3.55 | 3.94 | 3.74 | 3.21 | 2.68 | 2.40 | 2.46 | 2.96 | 2.43 | 3.15 | 3.33 | 3.46 | 1.04 | |||||||||||||
SKEW | -0.09 | 0.01 | 0.00 | 0.04 | 0.14 | 0.14 | 0.03 | -0.27 | -0.31 | 0.05 | -0.18 | 0.64 | 0.42 | |||||||||||||
MAX | 67.23 | 70.16 | 77.00 | 82.73 | 90.13 | 100.00 | 97.52 | 94.86 | 91.07 | 86.42 | 75.67 | 69.44 | 78.46 | |||||||||||||
MIN | 53.65 | 56.26 | 59.10 | 67.23 | 78.03 | 86.00 | 86.29 | 82.06 | 80.70 | 71.26 | 59.07 | 53.48 | 74.55 | |||||||||||||
YRS | 51 | 51 | 53 | 50 | 54 | 55 | 52 | 52 | 50 | 53 | 52 | 43 | 29 |