YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1958 | ----- | z | ----- | z | 46.29 | l | 56.53 | 72.27 | 77.50 | d | 82.65 | 83.23 | 77.29 | a | 69.32 | 55.66 | a | 54.82 | 69.92 | c | ||||||
1959 | 49.69 | b | 44.54 | 56.94 | 65.78 | 65.95 | 80.58 | 86.61 | 79.33 | a | 73.47 | 68.23 | 57.45 | 48.80 | a | 64.78 | ||||||||||
1960 | 40.69 | 43.41 | 57.58 | 61.75 | 68.42 | 82.18 | 85.24 | 83.17 | a | 78.07 | 63.97 | 52.72 | 46.92 | a | 63.68 | |||||||||||
1961 | 50.58 | 49.98 | 50.65 | 61.25 | 65.56 | 80.57 | 84.89 | 80.60 | a | 71.59 | b | 64.02 | 49.52 | 45.05 | 62.85 | |||||||||||
1962 | 47.18 | a | 47.72 | a | 47.48 | 67.61 | b | 64.43 | a | 77.37 | c | 82.06 | 83.85 | a | 77.31 | a | 67.69 | e | 59.50 | c | 51.32 | 64.46 | ||||
1963 | 44.74 | 55.41 | 50.89 | 54.43 | a | 69.34 | 72.95 | a | 83.26 | 79.61 | 77.33 | 66.94 | 54.09 | a | 51.00 | a | 63.33 | |||||||||
1964 | 43.88 | b | 46.52 | d | 49.18 | a | 56.76 | c | 65.14 | b | 75.85 | c | 83.08 | a | 81.07 | a | 74.39 | b | 71.75 | a | 49.12 | b | 46.93 | a | 61.97 | |
1965 | 49.61 | c | 50.33 | d | 49.41 | b | 55.34 | b | 64.43 | h | 72.48 | g | 81.67 | a | 81.76 | b | 70.97 | a | 71.97 | a | 54.46 | b | 44.97 | 61.05 | b | |
1966 | 43.41 | b | 44.35 | b | 55.34 | 64.59 | c | 71.42 | 77.19 | a | 81.62 | b | 83.78 | a | 76.70 | b | 66.24 | b | 54.98 | 47.76 | 63.95 | |||||
1967 | 48.18 | 52.54 | d | 54.14 | c | 49.15 | c | 68.59 | d | 73.43 | b | 83.38 | b | 84.00 | 73.98 | b | 70.19 | b | 58.14 | b | 41.71 | 63.12 | ||||
1968 | 46.66 | b | 53.81 | 54.07 | a | 58.21 | a | 67.98 | a | 80.25 | b | 83.23 | 77.58 | 76.78 | a | 66.53 | 54.28 | a | 43.05 | 63.53 | ||||||
1969 | 47.69 | 42.61 | a | 50.11 | 59.68 | 69.85 | a | 73.60 | 83.08 | 85.97 | 77.70 | 61.95 | a | 54.24 | a | 49.85 | 63.03 | |||||||||
1970 | 46.06 | 50.67 | a | 51.34 | 54.30 | 69.89 | 77.80 | b | 84.73 | c | 82.81 | b | 74.43 | a | 63.53 | a | 54.65 | 44.77 | a | 62.92 | ||||||
1971 | 46.85 | 49.48 | 54.65 | 57.13 | 62.26 | 74.78 | c | 84.71 | 79.69 | 74.85 | 59.73 | a | 52.24 | a | 38.93 | a | 61.28 | |||||||||
1972 | 47.05 | l | 49.25 | w | ----- | z | 63.60 | j | 67.92 | f | 76.96 | b | 86.15 | a | 79.13 | a | 72.27 | b | 57.92 | a | 48.00 | b | 41.78 | a | 66.03 | e |
1973 | 41.18 | c | 46.02 | b | 43.79 | 55.94 | c | 69.13 | 77.18 | 83.08 | 80.71 | 74.57 | 65.45 | a | 51.89 | b | 48.80 | d | 61.48 | |||||||
1974 | 42.21 | 48.26 | c | 52.58 | a | 58.50 | c | 70.91 | b | 83.45 | 82.22 | a | 81.48 | 77.62 | b | 65.93 | a | 55.02 | 44.08 | 63.52 | ||||||
1975 | 47.53 | 46.25 | 48.77 | a | 51.07 | 67.15 | 77.31 | a | 82.48 | 81.03 | 77.08 | 62.78 | a | 54.20 | 49.98 | b | 62.14 | |||||||||
1976 | 49.95 | 49.71 | 50.79 | 55.23 | 70.25 | a | 77.17 | a | 83.08 | 78.63 | 71.07 | 64.19 | 58.66 | a | 49.15 | 63.16 | ||||||||||
1977 | 44.84 | 53.17 | a | 47.28 | a | 61.60 | 58.93 | a | 76.85 | 80.21 | 78.81 | 73.67 | 67.66 | 58.09 | b | 51.38 | c | 62.71 | ||||||||
1978 | 44.72 | b | 47.56 | a | 53.90 | a | 54.88 | a | 66.29 | 79.26 | a | 83.38 | b | 80.55 | 73.00 | 69.39 | 50.02 | b | 42.15 | 62.09 | ||||||
1979 | 37.47 | 45.68 | 49.42 | 59.80 | 67.95 | a | 79.05 | 83.02 | a | 77.29 | 79.18 | 66.27 | 50.83 | 50.84 | 62.23 | |||||||||||
1980 | 46.55 | 50.95 | a | 48.26 | 59.02 | 61.48 | ----- | z | 81.58 | a | 80.63 | a | 74.92 | 61.88 | f | 57.03 | a | 54.12 | a | 61.45 | b | |||||
1981 | 49.97 | 50.54 | 49.66 | b | 62.63 | 66.52 | a | 83.05 | a | 83.18 | a | 82.76 | 74.50 | 59.53 | a | 56.28 | 50.60 | 64.10 | ||||||||
1982 | 44.67 | a | 48.98 | 48.61 | 57.03 | a | 67.71 | b | 74.45 | 79.73 | 80.05 | a | 71.30 | 61.26 | 49.18 | 43.19 | 60.51 | |||||||||
1983 | 48.26 | 47.29 | 49.19 | b | 50.83 | 68.17 | b | 74.48 | a | 80.37 | 76.56 | 74.21 | b | 63.47 | 51.55 | a | 46.79 | 60.93 | ||||||||
1984 | 48.37 | 48.67 | 54.69 | 57.67 | a | 74.13 | a | 73.18 | b | 78.19 | d | 77.10 | a | 75.82 | 57.19 | d | 50.09 | c | 42.35 | a | 61.45 | |||||
1985 | 44.12 | a | 45.52 | 49.11 | 63.16 | a | 67.91 | c | 80.05 | a | 84.54 | d | 81.25 | a | 67.24 | a | 63.88 | a | 48.50 | a | 48.91 | b | 62.02 | |||
1986 | 52.52 | b | 49.39 | 57.12 | b | 58.31 | a | 68.80 | a | 79.26 | c | 78.97 | 81.95 | 67.79 | a | 61.20 | c | 53.52 | 46.31 | 62.93 | ||||||
1987 | 43.60 | a | 46.64 | 48.88 | a | 63.57 | 66.65 | 79.12 | 77.23 | 80.06 | 75.45 | 67.25 | a | 49.88 | 40.25 | a | 61.55 | |||||||||
1988 | 44.95 | 50.84 | 53.50 | 58.10 | 66.35 | a | 75.79 | a | 83.47 | 77.68 | 73.53 | a | 71.27 | 52.05 | b | 43.82 | a | 62.61 | ||||||||
1989 | 43.15 | 45.95 | 55.78 | d | 66.21 | a | 66.98 | 77.22 | a | 84.38 | a | 77.66 | c | 73.74 | c | 64.55 | a | 57.74 | e | 50.60 | 63.66 | |||||
1990 | 44.48 | d | 45.50 | a | 55.89 | c | 62.10 | a | 65.82 | 79.57 | b | 93.06 | d | 80.43 | c | 75.48 | d | 66.68 | a | 53.65 | 41.88 | b | 63.71 | |||
1991 | 45.24 | 54.84 | 46.04 | c | 56.55 | 64.43 | c | 72.47 | 80.24 | b | 80.22 | b | 75.44 | e | 70.94 | e | 52.61 | b | 46.07 | a | 62.09 | |||||
1992 | 46.80 | c | 49.59 | b | 50.71 | b | 63.60 | a | 69.79 | ----- | z | 80.15 | 81.68 | 77.47 | 66.29 | 49.98 | b | 40.53 | a | 61.51 | a | |||||
1993 | 42.98 | b | 44.46 | a | 55.06 | 60.83 | 67.84 | 73.34 | a | 71.76 | 73.00 | h | 68.28 | c | 58.84 | 51.02 | 46.86 | b | 58.30 | a | ||||||
1994 | 49.50 | a | 44.67 | a | 56.76 | b | 60.63 | 66.03 | a | 82.30 | 83.68 | c | 83.92 | k | 73.94 | f | 62.08 | a | 44.33 | a | 46.08 | 59.61 | b | |||
1995 | 43.31 | 55.12 | 50.42 | a | 56.50 | a | 61.23 | 73.40 | a | 83.81 | b | 84.89 | 78.12 | 68.13 | 60.93 | 49.24 | 63.76 | |||||||||
1996 | 48.69 | 51.66 | 54.47 | 63.07 | 70.43 | b | 79.70 | 85.90 | a | 83.82 | a | 74.02 | 63.56 | 54.10 | 47.42 | 64.74 | ||||||||||
1997 | 46.37 | 48.87 | a | 60.29 | b | 59.73 | 75.40 | 75.57 | 81.11 | 82.97 | 75.78 | a | 64.75 | a | 53.73 | 44.60 | 64.10 | |||||||||
1998 | 47.69 | b | 42.61 | a | 50.85 | 54.45 | 60.78 | a | 72.03 | a | 84.02 | a | 83.29 | 72.35 | 62.25 | c | 53.34 | b | 47.50 | e | 60.93 | |||||
1999 | 49.17 | a | 49.91 | a | 53.27 | 53.24 | a | 66.38 | a | 75.55 | a | 79.61 | 79.75 | a | 75.84 | a | 71.03 | b | 59.29 | b | 48.48 | b | 63.46 | |||
2000 | 49.52 | b | 48.36 | a | 52.13 | d | 63.62 | a | 72.24 | b | 79.95 | b | 83.19 | 81.45 | 75.96 | d | 61.97 | 48.57 | 51.50 | 64.04 | ||||||
2001 | 45.09 | b | 44.70 | c | 53.85 | 56.53 | a | 74.48 | 79.27 | 80.63 | 83.25 | c | 79.27 | 69.61 | 55.75 | 43.98 | c | 63.87 | ||||||||
2002 | 46.31 | 51.89 | a | 51.03 | 61.95 | s | 67.19 | e | 79.80 | 84.37 | 82.61 | 77.38 | 63.84 | b | 55.83 | 44.86 | b | 64.10 | a | |||||||
2003 | 54.58 | 47.63 | i | 52.70 | d | 53.88 | b | 67.95 | b | 78.10 | a | 85.88 | a | 80.89 | 78.40 | d | 72.76 | 48.78 | a | 45.62 | a | 65.41 | a | |||
2004 | 45.69 | 42.30 | g | 63.48 | e | 58.92 | 68.84 | 77.48 | 82.47 | 79.85 | 74.63 | 60.63 | a | 47.86 | a | 45.72 | b | 64.14 | a | |||||||
2005 | 45.31 | 44.96 | e | 51.00 | b | ----- | z | ----- | z | 76.00 | h | 84.69 | 79.38 | a | 73.30 | 64.40 | 57.10 | 49.32 | a | 61.05 | c | |||||
2006 | 47.77 | 52.31 | b | 46.09 | b | 57.52 | c | 72.71 | b | 81.33 | 84.76 | 80.81 | b | 73.70 | b | 62.73 | i | 57.37 | g | 47.17 | g | 66.33 | c | |||
2007 | 43.71 | e | 47.95 | f | 56.91 | d | 60.54 | c | 70.95 | c | 79.64 | a | 84.68 | a | 82.05 | b | 73.32 | b | 63.44 | 58.98 | 41.85 | a | 65.10 | a | ||
2008 | 41.67 | a | 47.29 | 53.58 | 58.95 | 64.18 | 79.68 | 82.67 | a | 81.82 | l | 77.67 | 67.27 | a | 60.00 | a | 43.98 | a | 61.54 | a | ||||||
2009 | 50.77 | 45.65 | d | 53.02 | c | 57.32 | 74.36 | c | 70.84 | e | 85.52 | b | 81.78 | b | 79.22 | 61.11 | 56.72 | a | 42.57 | b | 63.24 | |||||
2010 | 46.50 | a | 46.05 | 49.66 | 53.80 | c | 60.78 | b | 76.60 | 84.19 | 80.47 | a | 78.59 | a | 63.25 | a | 51.20 | b | 48.43 | b | 61.63 | |||||
2011 | 47.12 | a | 44.63 | a | 53.57 | c | 57.52 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.71 | h |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.30 | 48.28 | 52.19 | 58.54 | 67.76 | 77.44 | 82.86 | 80.99 | 74.92 | 65.18 | 53.60 | 46.49 | 62.86 | |||||||||||||
S.D. | 3.15 | 3.34 | 3.74 | 4.05 | 3.71 | 3.06 | 2.94 | 2.13 | 2.84 | 3.84 | 3.75 | 3.66 | 1.12 | |||||||||||||
SKEW | -0.05 | 0.34 | 0.43 | 0.05 | -0.19 | -0.15 | -0.44 | -0.01 | -0.71 | 0.07 | -0.09 | 0.09 | -0.28 | |||||||||||||
MAX | 54.58 | 55.41 | 63.48 | 67.61 | 75.40 | 83.45 | 93.06 | 85.97 | 79.27 | 72.76 | 60.93 | 54.82 | 64.78 | |||||||||||||
MIN | 37.47 | 42.61 | 43.79 | 49.15 | 58.93 | 70.84 | 71.76 | 76.56 | 67.24 | 57.19 | 44.33 | 38.93 | 60.51 | |||||||||||||
YRS | 52 | 49 | 52 | 51 | 50 | 49 | 53 | 50 | 52 | 51 | 52 | 52 | 39 |