| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.94 | 41.94 | ||
| 1950 | 30.90 | 46.50 | 50.23 | 57.50 | 67.58 | 72.77 | 84.86 | b | 85.30 | a | ----- | z | 59.83 | b | 51.97 | 48.87 | a | 59.66 | ||||||||
| 1951 | 39.30 | a | 45.57 | 47.61 | 62.83 | 65.00 | 76.93 | 85.16 | 81.10 | 76.67 | 58.45 | 49.37 | 37.42 | 60.45 | ||||||||||||
| 1952 | 38.29 | 44.97 | 47.48 | 65.00 | 71.69 | r | 69.40 | 86.29 | 82.77 | 79.17 | 70.32 | 46.07 | 39.71 | 60.86 | ||||||||||||
| 1953 | 49.35 | 47.32 | 52.13 | 56.97 | 60.74 | 65.30 | 84.10 | a | 78.87 | 78.10 | 64.26 | 54.63 | 45.71 | 61.46 | ||||||||||||
| 1954 | 40.55 | 51.04 | 48.52 | 60.50 | 68.23 | 67.48 | a | 82.68 | 74.65 | 71.07 | 60.77 | 55.13 | 43.74 | 60.36 | ||||||||||||
| 1955 | 41.55 | 43.61 | 47.06 | 50.57 | 62.94 | 75.17 | 78.42 | 84.19 | 73.80 | 63.68 | 45.73 | 39.23 | 58.83 | |||||||||||||
| 1956 | 41.58 | 39.96 | a | 51.58 | 62.17 | 67.65 | 70.38 | a | 85.57 | c | 80.68 | 75.50 | 59.53 | a | 47.40 | 48.65 | 60.89 | |||||||||
| 1957 | 29.19 | 45.50 | b | 50.10 | 59.47 | 67.77 | a | 75.97 | 79.94 | 77.29 | 76.14 | a | 55.32 | 48.97 | 47.32 | 59.41 | ||||||||||
| 1958 | 43.68 | 51.96 | 48.84 | 57.00 | 74.29 | 74.13 | 87.03 | 87.84 | 72.30 | 68.23 | 50.90 | 48.55 | 63.73 | |||||||||||||
| 1959 | 43.32 | 41.75 | 54.74 | 62.33 | 61.52 | 74.93 | 86.90 | 79.39 | 68.30 | 65.48 | 54.77 | 44.39 | 61.49 | |||||||||||||
| 1960 | 35.52 | 43.00 | 54.42 | 61.53 | 62.90 | 80.27 | 91.23 | 81.58 | 78.03 | 64.84 | 46.63 | 41.39 | 61.78 | |||||||||||||
| 1961 | 44.65 | 50.14 | 50.90 | 54.17 | 59.68 | 81.07 | 86.84 | 89.32 | 70.90 | 62.13 | 47.37 | 40.77 | 61.49 | |||||||||||||
| 1962 | 40.90 | 44.71 | 49.42 | 65.83 | 61.32 | 76.40 | 85.00 | 80.03 | 79.53 | 63.26 | 51.80 | 47.81 | 62.17 | |||||||||||||
| 1963 | 41.81 | 54.64 | 53.65 | 54.53 | 68.45 | 74.00 | 79.58 | 83.42 | 81.83 | 63.61 | 49.93 | 42.06 | 62.29 | |||||||||||||
| 1964 | 42.74 | 49.41 | 49.90 | 57.03 | 67.26 | 73.57 | 84.87 | 80.77 | 74.87 | 65.16 | 44.87 | 39.39 | 60.82 | |||||||||||||
| 1965 | 40.65 | 50.11 | 54.23 | 61.40 | 66.55 | 75.67 | 85.90 | 81.32 | 72.20 | 72.19 | 52.00 | 43.06 | 62.94 | |||||||||||||
| 1966 | 43.16 | 45.71 | 55.13 | 63.27 | 71.65 | 74.30 | 81.19 | 84.68 | 77.50 | 66.68 | 51.17 | 43.13 | 63.13 | |||||||||||||
| 1967 | 43.61 | 50.82 | 49.48 | 51.63 | 69.26 | 79.43 | 90.74 | 94.35 | 83.87 | 66.16 | 49.50 | 41.65 | 64.21 | |||||||||||||
| 1968 | 43.61 | 48.76 | 59.52 | 61.27 | 70.10 | 80.27 | 92.84 | 78.94 | 75.67 | 65.81 | 52.93 | 41.29 | 64.25 | |||||||||||||
| 1969 | 32.13 | 38.39 | 52.90 | 59.17 | 71.77 | 75.90 | 83.42 | 83.16 | 75.03 | 58.39 | 52.77 | 42.81 | 60.49 | |||||||||||||
| 1970 | 42.29 | 48.93 | 52.68 | 54.37 | 69.65 | 79.87 | 88.45 | 87.97 | 70.60 | 64.45 | 50.73 | 42.97 | 62.75 | |||||||||||||
| 1971 | 47.68 | 47.61 | 47.19 | 57.37 | 65.65 | 71.10 | 86.90 | 88.68 | 70.50 | 60.00 | 50.80 | 39.65 | 61.09 | |||||||||||||
| 1972 | 40.29 | 48.17 | 56.74 | 55.17 | 71.52 | 78.77 | 87.19 | 87.35 | 72.80 | 60.87 | 50.67 | 35.48 | 62.09 | |||||||||||||
| 1973 | 39.58 | 46.86 | 52.35 | 61.73 | 72.32 | 78.47 | 89.16 | 84.19 | 75.07 | 63.10 | 44.43 | 44.97 | 62.69 | |||||||||||||
| 1974 | 36.03 | 48.96 | 51.65 | 57.57 | 63.90 | 82.80 | 83.35 | 85.71 | 81.40 | 65.74 | 50.07 | 43.23 | 62.53 | |||||||||||||
| 1975 | 43.13 | 43.61 | 46.35 | 52.40 | 66.45 | 72.77 | 86.10 | 78.94 | 79.30 | 60.45 | 47.47 | 42.39 | 59.95 | |||||||||||||
| 1976 | 46.10 | 46.41 | 49.77 | 55.77 | 69.16 | 73.07 | 85.42 | 76.61 | 77.77 | 67.19 | 53.60 | 48.74 | 62.47 | |||||||||||||
| 1977 | 40.23 | 49.96 | 49.94 | 66.30 | 59.94 | 81.40 | 83.65 | 87.71 | 69.90 | 63.10 | 47.57 | 42.06 | 61.81 | |||||||||||||
| 1978 | 41.19 | 47.11 | 57.00 | 56.17 | 63.58 | 76.73 | 85.13 | 80.32 | 70.50 | 67.71 | 42.93 | 36.68 | 60.42 | |||||||||||||
| 1979 | 24.97 | 43.29 | 53.48 | 56.97 | 70.16 | 77.57 | 86.48 | 79.55 | 80.07 | 65.10 | 43.87 | 47.26 | 60.73 | |||||||||||||
| 1980 | 37.90 | 44.34 | 50.48 | 61.57 | 65.77 | 69.67 | 85.61 | 80.32 | 76.37 | 64.23 | 50.67 | 48.94 | 61.32 | |||||||||||||
| 1981 | 39.06 | 47.75 | 52.71 | 59.10 | 64.10 | 74.10 | 82.52 | 89.39 | 76.23 | 60.35 | 49.97 | 41.13 | 61.37 | |||||||||||||
| 1982 | 37.77 | 45.68 | 50.65 | 55.83 | 66.13 | 75.60 | 81.42 | 83.19 | 70.47 | 59.42 | 44.67 | 38.61 | 59.12 | |||||||||||||
| 1983 | 46.65 | 48.00 | 52.23 | 56.93 | 69.58 | 73.33 | 78.45 | 85.32 | 72.30 | 65.48 | 48.00 | 30.10 | 60.53 | |||||||||||||
| 1984 | 44.32 | 48.66 | 55.06 | 54.80 | 65.55 | 72.10 | 88.19 | 86.39 | 73.27 | 56.61 | 45.53 | 38.13 | 60.72 | |||||||||||||
| 1985 | 37.29 | 44.39 | 52.16 | 65.63 | 69.03 | 79.40 | 91.84 | 81.84 | 67.27 | 62.45 | 38.23 | 37.19 | 60.56 | |||||||||||||
| 1986 | 47.00 | 45.32 | 59.48 | 58.03 | 68.90 | 82.13 | 79.52 | 89.16 | 66.90 | 66.65 | 49.87 | 40.23 | 62.77 | |||||||||||||
| 1987 | 43.19 | 49.43 | 53.90 | 67.30 | 71.48 | 81.37 | 78.65 | 84.03 | 79.90 | 71.13 | 51.33 | 38.55 | 64.19 | |||||||||||||
| 1988 | 40.10 | 53.38 | 55.06 | 62.37 | 66.65 | 74.90 | 86.52 | 85.52 | 77.73 | 74.32 | 47.53 | 44.29 | 64.03 | |||||||||||||
| 1989 | 44.13 | 36.79 | 51.81 | 64.63 | 65.77 | 78.83 | 83.61 | 79.77 | 76.17 | 63.16 | 54.97 | 50.39 | 62.50 | |||||||||||||
| 1990 | 44.81 | 46.79 | 56.42 | 67.17 | 65.48 | 75.70 | c | ----- | z | ----- | z | ----- | z | ----- | z | 53.23 | 37.90 | 55.94 | ||||||||
| 1991 | 43.65 | 55.86 | 50.55 | 57.43 | 62.84 | 69.33 | 86.90 | 86.42 | 79.90 | 64.87 | 48.37 | 41.84 | 62.33 | |||||||||||||
| 1992 | 45.39 | 49.66 | 58.39 | 60.93 | 75.45 | 79.93 | 81.61 | 85.13 | 75.18 | b | 64.71 | 47.97 | 34.71 | 63.25 | ||||||||||||
| 1993 | 28.45 | 34.57 | 50.87 | 55.57 | 69.42 | 70.50 | 72.87 | a | 79.06 | 77.90 | 64.97 | 44.77 | 40.71 | 57.47 | ||||||||||||
| 1994 | 48.16 | 43.82 | 55.58 | 60.67 | 67.71 | 74.30 | 88.00 | 83.70 | d | 78.53 | 61.03 | 42.53 | 42.00 | 62.17 | ||||||||||||
| 1995 | 40.94 | 51.50 | 51.06 | 55.87 | 66.32 | 71.30 | 80.77 | 79.55 | 77.57 | 61.81 | 54.00 | 42.54 | r | 62.79 | ||||||||||||
| 1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.17 | ----- | z | ----- | z | ----- | z | 73.17 | ||
| 1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.87 | 86.90 | 89.32 | 79.67 | 66.10 | 54.73 | 45.65 | 71.46 | ||||||||
| 1998 | 46.67 | a | 49.36 | 57.23 | 62.30 | 65.03 | 79.70 | 93.10 | 92.39 | 85.90 | 67.03 | 51.67 | 45.06 | 66.29 | ||||||||||||
| 1999 | 48.90 | 49.11 | 55.16 | 62.66 | a | 69.65 | 80.07 | 88.61 | 90.00 | 83.17 | 74.48 | b | 60.07 | 47.42 | 67.44 | |||||||||||
| 2000 | 44.55 | 51.17 | 57.77 | 70.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.00 | |||||
| 2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.77 | ----- | z | 79.67 | 64.68 | 51.93 | 38.77 | 63.57 | ||||||
| 2002 | 41.94 | 50.36 | 51.19 | 61.57 | 67.16 | 79.40 | 89.52 | 82.90 | 77.13 | 61.42 | 54.00 | 42.39 | 63.25 | |||||||||||||
| 2003 | 48.81 | 47.29 | 56.26 | 55.80 | 66.48 | 80.53 | 92.13 | 86.32 | 80.20 | 67.03 | 44.97 | 42.45 | 64.02 | |||||||||||||
| 2004 | 40.06 | 45.72 | 59.55 | 63.70 | 66.32 | 77.63 | 88.39 | 85.65 | 73.53 | 63.58 | 51.03 | 45.94 | 63.43 | |||||||||||||
| 2005 | 43.42 | 48.89 | 57.10 | 57.90 | 66.32 | 72.57 | 89.10 | 87.97 | 74.80 | 64.65 | 45.77 | 38.42 | 62.24 | |||||||||||||
| 2006 | 46.35 | 45.82 | 48.77 | 60.10 | 70.48 | 77.37 | 90.00 | 85.19 | 78.97 | 63.74 | 49.47 | 44.77 | 63.42 | |||||||||||||
| 2007 | 40.90 | 47.82 | 60.06 | 60.13 | 71.87 | 76.93 | 89.87 | 84.00 | 74.20 | 60.94 | 50.33 | 41.55 | 63.22 | |||||||||||||
| 2008 | 40.03 | 49.76 | 51.06 | 55.67 | 67.97 | 76.53 | 87.19 | 84.10 | 78.73 | 64.10 | 56.03 | 39.45 | 62.55 | |||||||||||||
| 2009 | 43.97 | 46.64 | 48.55 | 59.00 | 70.81 | 75.87 | 89.58 | 85.48 | 80.10 | 57.16 | 50.67 | 37.90 | 62.14 | |||||||||||||
| 2010 | 45.71 | 48.93 | 54.90 | 56.03 | 61.48 | 72.37 | 86.55 | 83.42 | 75.33 | 64.23 | 48.20 | 41.58 | 61.56 | |||||||||||||
| 2011 | 46.35 | 43.57 | 50.74 | 53.40 | 61.16 | 72.10 | 81.61 | 86.58 | 83.57 | 63.45 | 50.33 | 47.58 | 61.70 | |||||||||||||
| 2012 | 47.23 | 45.14 | 51.48 | 60.87 | 68.13 | 71.47 | 85.77 | 88.77 | 81.43 | 63.52 | 51.60 | 41.52 | 63.08 | |||||||||||||
| 2013 | 41.52 | 47.93 | 54.29 | 67.50 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.91 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 41.69 | 47.02 | 52.71 | 59.36 | 67.07 | 75.65 | 85.53 | 84.03 | 76.23 | 63.99 | 49.65 | 42.25 | 62.06 | |||||||||||||
| S.D. | 4.99 | 3.87 | 3.46 | 4.21 | 3.58 | 3.93 | 4.03 | 4.04 | 4.24 | 3.85 | 3.87 | 4.04 | 1.73 | |||||||||||||
| SKEW | -1.21 | -0.71 | 0.32 | 0.29 | -0.10 | -0.30 | -0.51 | 0.08 | -0.13 | 0.44 | -0.22 | -0.17 | 0.33 | |||||||||||||
| MAX | 49.35 | 55.86 | 60.06 | 70.50 | 75.45 | 82.80 | 93.10 | 94.35 | 85.90 | 74.48 | 60.07 | 50.39 | 67.44 | |||||||||||||
| MIN | 24.97 | 34.57 | 46.35 | 50.57 | 59.68 | 65.30 | 72.87 | 74.65 | 66.90 | 55.32 | 38.23 | 30.10 | 57.47 | |||||||||||||
| NO YRS | 61 | 61 | 61 | 60 | 58 | 60 | 60 | 59 | 60 | 60 | 61 | 61 | 55 | |||||||||||||