YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1958 | ----- | z | ----- | z | 53.86 | j | 64.93 | 82.29 | 87.80 | 92.77 | 93.00 | 86.90 | a | 77.58 | 63.00 | 63.84 | 79.12 | c | ||||||||
1959 | 57.97 | 52.46 | 65.94 | 75.40 | 76.90 | 90.63 | 97.00 | 89.29 | 83.13 | 77.52 | 66.03 | 56.23 | 74.04 | |||||||||||||
1960 | 47.52 | 51.52 | 67.35 | 71.80 | 79.58 | 92.57 | 95.39 | 94.43 | a | 88.13 | 72.77 | 60.73 | 55.19 | 73.08 | ||||||||||||
1961 | 58.58 | 58.96 | 61.68 | 71.77 | 76.39 | 91.47 | 94.65 | 90.60 | a | 81.29 | b | 73.03 | 57.80 | 52.77 | 72.42 | |||||||||||
1962 | 54.90 | a | 55.07 | a | 56.32 | 76.73 | 74.77 | 87.85 | c | 91.94 | 93.70 | a | 86.69 | a | 76.14 | c | 67.48 | c | 58.77 | 73.36 | ||||||
1963 | 52.48 | 63.43 | 59.81 | 64.10 | 78.71 | 82.90 | 92.71 | 89.03 | 85.90 | 74.58 | 61.33 | 58.26 | 71.94 | |||||||||||||
1964 | 51.20 | a | 54.86 | 58.10 | 66.93 | 74.77 | a | 84.77 | 92.37 | a | 90.42 | 83.76 | a | 79.90 | 56.57 | 54.42 | 70.67 | |||||||||
1965 | 56.93 | a | 57.39 | 57.97 | 64.17 | a | 73.25 | c | 81.13 | 91.26 | 91.70 | a | 80.13 | 81.30 | a | 60.72 | a | 51.65 | 70.63 | |||||||
1966 | 50.32 | 52.08 | b | 63.94 | 73.66 | a | 81.00 | 87.20 | 91.33 | a | 93.27 | a | 85.31 | a | 74.65 | 62.97 | 56.32 | 72.67 | ||||||||
1967 | 57.39 | 61.86 | 63.71 | 59.57 | 78.53 | a | 83.77 | 93.93 | b | 94.45 | 83.25 | b | 79.29 | 66.69 | a | 49.74 | 72.68 | |||||||||
1968 | 55.17 | a | 61.97 | 63.23 | 68.34 | a | 79.40 | a | 91.89 | b | 93.42 | 87.97 | 86.69 | a | 76.48 | 63.17 | a | 53.06 | 73.40 | |||||||
1969 | 55.45 | 50.19 | a | 59.68 | 71.27 | 81.63 | a | 84.90 | 94.00 | 96.35 | 87.53 | 71.60 | a | 63.03 | a | 59.74 | 72.95 | |||||||||
1970 | 54.84 | 59.70 | a | 60.90 | 65.90 | 80.84 | 90.32 | b | 95.82 | c | 93.48 | b | 85.76 | a | 73.60 | a | 63.33 | 52.94 | 73.12 | |||||||
1971 | 56.58 | 58.82 | 65.29 | 68.37 | 72.97 | 86.44 | c | 95.39 | 90.19 | 84.73 | 70.20 | a | 61.72 | a | 46.19 | 71.41 | ||||||||||
1972 | 57.16 | l | 58.67 | w | ----- | z | 74.65 | g | 78.72 | f | 87.96 | b | 96.30 | a | 89.30 | a | 82.29 | b | 65.90 | a | 55.89 | b | 49.83 | a | 75.35 | e |
1973 | 48.74 | 54.46 | b | 52.61 | 66.54 | b | 81.94 | 90.57 | 95.39 | 92.29 | 85.27 | 75.90 | a | 61.93 | a | 57.59 | d | 71.94 | ||||||||
1974 | 50.03 | 58.62 | b | 62.47 | a | 70.07 | c | 82.83 | b | 95.40 | 92.97 | 92.23 | 87.76 | a | 76.07 | a | 64.30 | 51.42 | 73.68 | |||||||
1975 | 56.39 | 54.43 | 57.80 | a | 60.37 | 77.71 | 88.48 | a | 93.00 | 91.48 | 87.20 | 73.00 | 62.87 | 59.48 | 71.85 | |||||||||||
1976 | 58.52 | 57.34 | 59.94 | 65.20 | 80.40 | a | 87.50 | 92.26 | 88.61 | 79.77 | 72.68 | 67.34 | a | 57.29 | 72.24 | |||||||||||
1977 | 52.16 | 61.57 | 56.03 | 71.60 | 69.07 | a | 89.17 | 93.84 | 90.13 | 82.20 | 75.84 | 66.00 | a | 57.61 | 72.10 | |||||||||||
1978 | 51.00 | b | 54.19 | a | 61.57 | a | 64.66 | a | 75.81 | 89.40 | 93.52 | 91.23 | 83.13 | 78.71 | 59.03 | 51.03 | 71.11 | |||||||||
1979 | 43.29 | 53.71 | 57.35 | 68.33 | 78.30 | a | 90.50 | 93.60 | a | 86.97 | 89.20 | 75.97 | 60.13 | 59.87 | 71.44 | |||||||||||
1980 | 53.48 | 59.14 | a | 56.97 | 69.27 | 72.39 | ----- | z | 96.90 | a | 92.74 | 86.83 | 74.90 | b | 66.76 | a | 63.65 | 72.09 | a | |||||||
1981 | 57.55 | 59.86 | 59.14 | b | 72.80 | 77.77 | a | 93.48 | a | 93.90 | a | 94.06 | 85.03 | 68.67 | a | 65.40 | 59.35 | 73.92 | ||||||||
1982 | 53.20 | a | 57.54 | 57.10 | 68.33 | 78.48 | b | 85.93 | 90.87 | 90.37 | a | 80.97 | 70.13 | 57.50 | 50.81 | 70.10 | ||||||||||
1983 | 56.42 | 55.07 | 57.17 | b | 60.53 | 78.48 | b | 85.72 | a | 91.23 | 86.61 | 84.00 | b | 72.03 | 59.79 | a | 54.26 | 70.11 | ||||||||
1984 | 56.32 | 58.21 | 64.65 | 68.62 | a | 85.80 | a | 83.50 | b | 89.52 | d | 87.73 | a | 85.80 | 66.89 | d | 58.96 | c | 49.27 | a | 71.27 | |||||
1985 | 52.50 | a | 55.79 | 59.55 | 74.45 | a | 79.61 | c | 91.79 | a | 96.07 | d | 92.87 | a | 78.59 | a | 73.97 | a | 56.83 | a | 57.59 | b | 72.47 | |||
1986 | 61.20 | a | 58.54 | 66.34 | b | 69.31 | a | 80.40 | a | 90.56 | c | 90.42 | 92.94 | 78.07 | a | 70.79 | c | 62.37 | 54.06 | 72.92 | ||||||
1987 | 52.00 | a | 54.54 | 59.10 | 75.27 | 77.87 | 90.97 | 90.00 | 90.97 | 86.50 | 76.67 | a | 58.27 | 48.30 | a | 71.70 | ||||||||||
1988 | 53.48 | 60.00 | 64.19 | 69.10 | 78.17 | a | 88.14 | a | 94.74 | 89.39 | 84.86 | a | 81.55 | 62.00 | a | 52.97 | a | 73.22 | ||||||||
1989 | 52.65 | 56.43 | 68.64 | c | 78.79 | a | 80.42 | 90.00 | a | 96.60 | a | 89.10 | b | 85.89 | b | 75.47 | a | 68.31 | a | 61.58 | 75.32 | |||||
1990 | 54.38 | b | 55.30 | a | 65.76 | b | 75.07 | a | 77.77 | 90.46 | b | 99.48 | d | 90.96 | c | 89.46 | d | 77.90 | 65.60 | 50.93 | a | 74.42 | ||||
1991 | 54.10 | 65.21 | 56.75 | c | 69.43 | 77.39 | 84.70 | 91.76 | b | 94.10 | b | 87.15 | d | 82.81 | e | 61.89 | b | 54.30 | a | 73.30 | ||||||
1992 | 55.48 | b | 57.19 | b | 58.52 | b | 74.24 | a | 80.94 | ----- | z | 91.58 | 92.42 | 88.13 | 77.03 | 59.79 | b | 47.90 | a | 71.20 | a | |||||
1993 | 49.55 | 52.30 | a | 65.10 | 71.77 | 80.55 | 87.24 | a | 90.19 | 92.29 | g | 86.00 | c | 75.19 | 60.87 | 55.97 | a | 70.43 | a | |||||||
1994 | 58.87 | a | 53.52 | a | 66.79 | b | 71.70 | 77.97 | a | 93.77 | 95.71 | c | 95.55 | k | 87.58 | f | 73.50 | a | 55.27 | 54.16 | 70.13 | b | ||||
1995 | 49.87 | 64.25 | 59.23 | a | 67.79 | a | 73.65 | 85.28 | a | 94.97 | b | 95.29 | 88.47 | 78.97 | 70.97 | 57.81 | 73.88 | |||||||||
1996 | 58.71 | 60.69 | 65.26 | 74.37 | 82.28 | b | 92.30 | 96.77 | a | 95.40 | a | 84.77 | 73.23 | 63.47 | 56.10 | 75.28 | ||||||||||
1997 | 53.90 | 56.93 | 71.38 | b | 70.40 | 86.23 | 87.13 | 92.90 | 94.00 | 86.00 | a | 76.13 | a | 62.23 | 52.52 | 74.15 | ||||||||||
1998 | 55.39 | 49.81 | a | 60.94 | 64.43 | 72.03 | a | 84.07 | a | 95.17 | a | 95.10 | 82.73 | 71.96 | c | 63.68 | b | 57.25 | c | 71.05 | ||||||
1999 | 58.93 | a | 59.86 | 64.39 | 63.76 | a | 77.90 | a | 87.24 | a | 89.32 | 89.70 | a | 84.93 | a | 79.47 | a | 67.79 | b | 56.79 | b | 73.34 | ||||
2000 | 56.31 | b | 56.18 | a | 59.86 | c | 72.97 | a | 81.61 | 89.86 | b | 92.26 | 91.19 | 85.23 | d | 69.77 | 56.07 | 59.10 | 72.53 | |||||||
2001 | 51.90 | a | 54.64 | c | 62.29 | 66.30 | 84.26 | 89.03 | 90.00 | 92.29 | c | 87.83 | 78.13 | 63.23 | 50.80 | a | 72.56 | |||||||||
2002 | 53.39 | 60.33 | a | 60.42 | 71.55 | a | 77.08 | e | 89.30 | 93.52 | 91.42 | 86.00 | 71.87 | a | 64.20 | 51.69 | b | 72.56 | ||||||||
2003 | 62.13 | 55.05 | i | 59.96 | d | 63.86 | b | 76.76 | b | 87.59 | a | 94.53 | a | 89.48 | 88.12 | d | 80.94 | 55.83 | 52.33 | a | 73.78 | a | ||||
2004 | 52.87 | 48.48 | f | 71.58 | e | 67.23 | 78.03 | 86.77 | 91.58 | 88.39 | 83.47 | 67.63 | a | 54.97 | a | 52.34 | b | 72.26 | a | |||||||
2005 | 50.77 | 50.78 | e | 58.97 | b | ----- | z | ----- | z | 85.14 | h | 93.68 | 87.67 | a | 82.10 | 72.61 | 64.90 | 56.77 | a | 68.69 | c | |||||
2006 | 55.32 | 60.58 | b | 54.55 | b | 66.70 | c | 82.10 | b | 90.23 | 93.81 | 89.69 | b | 82.86 | b | 71.23 | i | 65.58 | f | 56.12 | g | 75.09 | c | |||
2007 | 52.35 | e | 56.22 | e | 65.78 | d | 69.85 | c | 80.32 | c | 88.43 | 93.67 | a | 90.76 | b | 82.75 | b | 71.84 | 67.13 | 49.20 | a | 72.36 | ||||
2008 | 48.53 | a | 54.93 | 62.42 | 68.77 | 73.35 | 89.07 | 92.07 | a | 92.42 | l | 86.87 | 76.20 | a | 69.14 | a | 51.13 | a | 70.23 | a | ||||||
2009 | 58.61 | 53.42 | d | 61.96 | c | 67.57 | 83.89 | c | 80.20 | e | 94.62 | b | 90.52 | b | 88.27 | 69.90 | 64.62 | a | 49.52 | b | 71.92 | |||||
2010 | 53.63 | a | 52.57 | 57.39 | 64.07 | c | 70.93 | b | 86.50 | 93.29 | 90.20 | a | 87.45 | a | 70.97 | a | 58.71 | b | 55.24 | b | 70.08 | |||||
2011 | 53.80 | a | 52.33 | a | 62.18 | c | 67.81 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.03 | h |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 54.17 | 56.70 | 61.46 | 68.96 | 78.46 | 88.24 | 93.47 | 91.31 | 85.02 | 74.61 | 62.28 | 54.56 | 72.50 | |||||||||||||
S.D. | 3.62 | 3.73 | 4.12 | 4.29 | 3.72 | 3.22 | 2.18 | 2.37 | 2.71 | 3.89 | 3.93 | 4.07 | 1.29 | |||||||||||||
SKEW | -0.32 | 0.23 | 0.38 | -0.01 | -0.31 | -0.26 | 0.20 | 0.09 | -0.65 | -0.06 | -0.05 | 0.21 | 0.04 | |||||||||||||
MAX | 62.13 | 65.21 | 71.58 | 78.79 | 86.23 | 95.40 | 99.48 | 96.35 | 89.46 | 82.81 | 70.97 | 63.84 | 75.32 | |||||||||||||
MIN | 43.29 | 49.81 | 52.61 | 59.57 | 69.07 | 80.20 | 89.32 | 86.61 | 78.07 | 65.90 | 54.97 | 46.19 | 70.08 | |||||||||||||
YRS | 52 | 50 | 52 | 52 | 51 | 50 | 53 | 50 | 52 | 52 | 52 | 52 | 42 |