| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.33 | i | 48.06 | 48.06 | ||
| 1961 | 53.00 | 52.46 | 52.22 | h | 64.30 | 67.10 | 81.17 | 85.67 | a | 90.25 | k | 73.87 | 63.87 | 50.23 | 46.23 | 63.79 | ||||||||||
| 1962 | 45.32 | 51.29 | 52.32 | 67.50 | 62.03 | 72.91 | s | 84.35 | 80.39 | 79.13 | 63.23 | 55.03 | 50.74 | 62.85 | ||||||||||||
| 1963 | 44.48 | 58.00 | 55.45 | 56.37 | 69.55 | 72.27 | 77.45 | 81.71 | g | 80.31 | d | 64.71 | 51.23 | 49.00 | 61.71 | |||||||||||
| 1964 | 43.74 | 52.00 | 52.16 | 59.70 | 66.35 | 71.07 | 80.61 | 80.12 | e | 75.03 | 68.65 | 48.43 | 44.16 | 61.84 | ||||||||||||
| 1965 | 44.26 | 53.57 | 61.65 | 63.13 | 67.17 | a | 74.90 | 84.29 | g | 81.93 | b | 77.23 | 70.55 | 55.03 | 43.81 | 63.02 | ||||||||||
| 1966 | 44.55 | 50.39 | 56.13 | 68.20 | 72.23 | 77.17 | 80.58 | 83.81 | 78.40 | 66.93 | b | 52.30 | 47.81 | 64.87 | ||||||||||||
| 1967 | 46.52 | 54.14 | 54.23 | 54.97 | 72.77 | a | 78.70 | 85.16 | 91.45 | 82.93 | 65.68 | 55.50 | 43.52 | 65.46 | ||||||||||||
| 1968 | 46.61 | 58.34 | 60.61 | 62.33 | 68.87 | 76.90 | 84.52 | ----- | z | 73.23 | 63.77 | 52.80 | 43.77 | 62.89 | ||||||||||||
| 1969 | 40.74 | 46.82 | 59.94 | 62.77 | 74.61 | 74.60 | 80.13 | 81.65 | e | 77.13 | 61.81 | 55.70 | 49.10 | 63.75 | ||||||||||||
| 1970 | 48.61 | 58.11 | 57.61 | 56.47 | 71.13 | 78.41 | h | 85.90 | 84.19 | 74.57 | 65.03 | 54.23 | 45.03 | 63.72 | ||||||||||||
| 1971 | 44.06 | 50.11 | 51.19 | 60.17 | 68.19 | 72.03 | 83.26 | 83.55 | 74.70 | 61.65 | 50.83 | 43.16 | 61.91 | |||||||||||||
| 1972 | 44.26 | 52.38 | 58.20 | f | 59.17 | 71.87 | 77.20 | 87.35 | 85.48 | 75.27 | 63.45 | 53.23 | 40.74 | 64.58 | ||||||||||||
| 1973 | 44.42 | 56.64 | 54.06 | 64.80 | 73.71 | 78.27 | 86.74 | 83.03 | 77.97 | 64.19 | 46.77 | 47.68 | 64.86 | |||||||||||||
| 1974 | 45.19 | 49.21 | 55.61 | 61.27 | 66.68 | 78.43 | 82.29 | 84.32 | 86.13 | 70.77 | 55.43 | 46.42 | 65.15 | |||||||||||||
| 1975 | 46.87 | 49.39 | 51.68 | 56.07 | 70.84 | 74.27 | 82.19 | 77.61 | 81.17 | 61.26 | 49.73 | 48.35 | 62.45 | |||||||||||||
| 1976 | 48.19 | 51.62 | 54.48 | 59.80 | 72.35 | 72.57 | 83.06 | 77.32 | 75.87 | 69.48 | 59.03 | 47.77 | 64.30 | |||||||||||||
| 1977 | 49.06 | 58.04 | 53.87 | 67.13 | 62.94 | 78.30 | 82.65 | ----- | z | 71.07 | 62.32 | 50.40 | 50.03 | 62.35 | ||||||||||||
| 1978 | 51.00 | 53.57 | 62.03 | 58.90 | 67.87 | 76.63 | 82.61 | 80.52 | 70.13 | 69.23 | 51.20 | 41.97 | 63.81 | |||||||||||||
| 1979 | 43.06 | 47.04 | 60.35 | 60.67 | 71.52 | 76.53 | 84.29 | 80.00 | 79.00 | 67.26 | 53.03 | 49.10 | 64.32 | |||||||||||||
| 1980 | 45.52 | 54.62 | 54.55 | 65.40 | 66.42 | 69.97 | 82.84 | 80.48 | 78.47 | 68.03 | 54.77 | 50.10 | 64.26 | |||||||||||||
| 1981 | 53.19 | 54.36 | 57.39 | 63.10 | 66.55 | 73.97 | 81.58 | 85.74 | 77.53 | 61.87 | 53.23 | 47.48 | 64.67 | |||||||||||||
| 1982 | 42.52 | 51.11 | 54.23 | 59.80 | 71.45 | 76.20 | 79.35 | 81.61 | 72.90 | 62.77 | 49.80 | 44.32 | 62.17 | |||||||||||||
| 1983 | 48.90 | 52.00 | 55.00 | 61.20 | 70.13 | 72.30 | 75.13 | 78.19 | 72.13 | 64.90 | 50.80 | 43.74 | 62.04 | |||||||||||||
| 1984 | 48.00 | 51.28 | 57.35 | 57.33 | 67.52 | 72.07 | 83.74 | 81.13 | 75.87 | 59.19 | 47.93 | 42.39 | 61.98 | |||||||||||||
| 1985 | 46.13 | 47.36 | 52.48 | 66.30 | 68.42 | 78.70 | 87.81 | 81.81 | 69.23 | 63.19 | 44.50 | 44.23 | 62.51 | |||||||||||||
| 1986 | 50.06 | 51.96 | 62.61 | 61.57 | 69.55 | 80.50 | 78.97 | 88.06 | 69.60 | 67.35 | 52.10 | 46.97 | 64.94 | |||||||||||||
| 1987 | 45.81 | 54.07 | 58.97 | ----- | z | 71.97 | 81.57 | 77.16 | 84.32 | 78.87 | 73.77 | 54.00 | 44.42 | 65.90 | ||||||||||||
| 1988 | 45.45 | 56.55 | 58.29 | 63.53 | 66.19 | 73.37 | 85.03 | 84.61 | 79.87 | 71.06 | 49.37 | 44.58 | 64.83 | |||||||||||||
| 1989 | 45.48 | 46.00 | 53.74 | 69.20 | 68.03 | 76.73 | 78.00 | 78.68 | 80.30 | 64.94 | 53.40 | 45.68 | 63.35 | |||||||||||||
| 1990 | 47.03 | 47.96 | 60.00 | 66.37 | 67.03 | 75.47 | 85.48 | 82.61 | 79.63 | 63.58 | 51.03 | 39.35 | 63.80 | |||||||||||||
| 1991 | 45.32 | 57.43 | 53.94 | 58.40 | 63.71 | 72.60 | 85.77 | 84.06 | 84.93 | 69.45 | 54.03 | 46.61 | 64.69 | |||||||||||||
| 1992 | 48.74 | 57.59 | 63.77 | 66.30 | 79.10 | ----- | z | 82.87 | 87.45 | 79.40 | 67.58 | 52.50 | 43.13 | 66.22 | ||||||||||||
| 1993 | 43.06 | 49.61 | 59.68 | 59.13 | 70.68 | 73.23 | 75.48 | 78.68 | 80.50 | 68.94 | 48.53 | 44.39 | 62.66 | |||||||||||||
| 1994 | 50.65 | 48.29 | 61.29 | 63.37 | 71.03 | 73.70 | 88.00 | 83.42 | 80.77 | 64.48 | 44.60 | 43.87 | 64.46 | |||||||||||||
| 1995 | 49.13 | 56.86 | 57.90 | 60.63 | 70.77 | 74.53 | 83.42 | 81.71 | 79.33 | 63.68 | 54.87 | 47.74 | 65.05 | |||||||||||||
| 1996 | 45.35 | 53.52 | 59.87 | 63.10 | 67.52 | 75.73 | 87.58 | 86.52 | 74.90 | 63.16 | 53.40 | 45.94 | 64.72 | |||||||||||||
| 1997 | 46.48 | 50.71 | 56.42 | 62.33 | 76.32 | 73.43 | 83.13 | 84.55 | 75.80 | 61.23 | 53.37 | 43.97 | 63.98 | |||||||||||||
| 1998 | 48.42 | 50.71 | ----- | z | 63.00 | 62.32 | 75.27 | 85.06 | 86.26 | 80.43 | 61.94 | 50.77 | 42.10 | 64.21 | ||||||||||||
| 1999 | 45.52 | 46.50 | 52.42 | 62.37 | 66.13 | 75.13 | 82.84 | 80.84 | 82.23 | 68.77 | 54.80 | 43.77 | 63.44 | |||||||||||||
| 2000 | 44.03 | 50.90 | 55.52 | 66.77 | 68.16 | 79.03 | 81.19 | 83.61 | 78.17 | 63.81 | 47.17 | 45.77 | 63.68 | |||||||||||||
| 2001 | 46.19 | 50.11 | 56.77 | 58.97 | 75.87 | 72.00 | 82.17 | a | 83.68 | 80.10 | a | 63.77 | 52.53 | 43.61 | 63.82 | |||||||||||
| 2002 | 43.35 | 50.71 | 54.03 | 63.57 | 69.33 | a | 77.87 | 86.55 | 84.71 | 78.13 | 63.87 | 53.87 | 46.68 | 64.39 | ||||||||||||
| 2003 | 49.81 | 50.50 | 56.87 | 56.50 | 69.94 | 80.57 | 89.31 | e | 85.39 | 80.13 | 65.84 | 47.00 | 45.10 | 64.75 | ||||||||||||
| 2004 | 45.84 | 49.69 | 63.03 | 68.33 | 68.74 | 75.73 | 86.52 | 84.06 | 73.40 | 62.90 | 50.00 | 45.87 | 64.51 | |||||||||||||
| 2005 | 45.81 | 53.21 | 59.87 | 61.83 | 68.52 | 72.20 | 85.10 | 87.74 | 77.03 | 63.77 | 47.40 | 44.42 | 63.91 | |||||||||||||
| 2006 | 45.61 | 52.64 | 51.87 | 63.63 | 72.87 | 77.37 | 85.00 | 84.39 | 79.07 | 64.65 | 49.10 | 44.29 | 64.21 | |||||||||||||
| 2007 | 40.00 | 48.29 | 58.97 | a | 62.60 | 71.61 | 75.50 | 84.48 | 83.26 | 77.43 | 60.00 | 48.93 | 42.16 | 62.77 | ||||||||||||
| 2008 | 39.00 | 48.97 | 52.00 | 58.90 | 70.48 | 74.03 | 86.42 | 83.81 | 81.40 | 61.45 | 52.20 | 39.42 | 62.34 | |||||||||||||
| 2009 | 42.61 | 49.89 | 51.52 | 61.17 | 73.19 | 75.97 | 89.13 | 85.65 | 80.60 | 60.06 | 48.70 | 40.90 | 63.28 | |||||||||||||
| 2010 | 50.48 | 52.79 | 55.74 | 60.00 | 64.39 | 71.73 | 84.84 | 83.39 | 75.10 | 62.26 | 48.43 | 45.74 | 62.91 | |||||||||||||
| 2011 | 46.40 | a | 45.85 | a | 51.97 | a | 55.77 | 62.87 | 72.63 | 79.60 | a | 83.03 | a | 82.57 | 61.65 | 48.37 | 41.42 | 61.01 | ||||||||
| 2012 | 44.87 | 48.48 | 51.29 | 61.57 | 67.77 | 71.13 | 80.23 | a | 85.86 | b | 82.34 | a | 58.19 | 53.03 | 42.74 | 62.29 | ||||||||||
| 2013 | 41.10 | 47.89 | 58.36 | c | 56.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.00 | z | 49.12 | |||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 46.03 | 51.73 | 56.42 | 61.88 | 69.28 | 75.33 | 83.31 | 83.22 | 77.72 | 64.73 | 51.44 | 45.08 | 63.66 | |||||||||||||
| S.D. | 3.02 | 3.44 | 3.55 | 3.55 | 3.60 | 2.88 | 3.34 | 2.88 | 3.77 | 3.37 | 3.06 | 2.70 | 1.13 | |||||||||||||
| SKEW | 0.17 | 0.36 | 0.27 | 0.09 | 0.17 | 0.30 | -0.52 | 0.12 | -0.31 | 0.56 | -0.16 | 0.07 | -0.42 | |||||||||||||
| MAX | 53.19 | 58.34 | 63.77 | 69.20 | 79.10 | 81.57 | 89.31 | 91.45 | 86.13 | 73.77 | 59.03 | 50.74 | 65.46 | |||||||||||||
| MIN | 39.00 | 45.85 | 51.19 | 54.97 | 62.03 | 69.97 | 75.13 | 77.32 | 69.23 | 58.19 | 44.50 | 39.35 | 61.01 | |||||||||||||
| NO YRS | 53 | 53 | 50 | 51 | 52 | 49 | 51 | 48 | 52 | 52 | 52 | 53 | 41 | |||||||||||||