| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.4 | 49.3 | 56.6 | 64.0 | 72.4 | 82.5 | 92.1 | 91.4 | 81.8 | 69.1 | 51.8 | 42.6 | 66.3 |
| Highest Mean Max. Temperature (F) | 49.7 | 57.0 | 64.4 | 73.5 | 82.9 | 89.6 | 99.3 | 98.1 | 87.8 | 79.6 | 60.8 | 48.9 | 99.3 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1987 | 1992 | 1974 | 1985 | 1986 | 1990 | 1988 | 1995 | 1975 | 1985 |
| Lowest Mean Max. Temperature (F) | 31.2 | 37.8 | 51.8 | 53.1 | 64.4 | 75.9 | 81.7 | 82.9 | 72.5 | 61.2 | 42.2 | 30.6 | 30.6 |
| Year Lowest Occurred | 1984 | 1993 | 1971 | 1975 | 1977 | 1984 | 1993 | 1976 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 30.5 | 36.5 | 42.4 | 48.5 | 56.6 | 65.3 | 73.1 | 71.7 | 62.0 | 50.9 | 38.2 | 30.4 | 50.5 |
| Highest Mean Temperature (F) | 38.8 | 45.2 | 49.9 | 55.2 | 63.3 | 71.2 | 78.9 | 77.0 | 67.6 | 58.9 | 46.6 | 37.4 | 78.9 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1990 | 1992 | 1977 | 1985 | 1986 | 1990 | 1988 | 1995 | 1981 | 1985 |
| Lowest Mean Temperature (F) | 18.7 | 26.6 | 36.0 | 41.3 | 51.5 | 60.4 | 64.6 | 64.4 | 53.9 | 45.9 | 28.5 | 16.6 | 16.6 |
| Year Lowest Occurred | 1984 | 1989 | 1976 | 1975 | 1977 | 1984 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 18.5 | 23.6 | 28.2 | 33.0 | 40.7 | 48.0 | 54.1 | 51.9 | 42.2 | 32.6 | 24.6 | 18.1 | 34.6 |
| Highest Mean Min. Temperature (F) | 27.8 | 34.1 | 35.5 | 39.1 | 44.9 | 55.0 | 58.5 | 56.8 | 49.2 | 38.3 | 32.3 | 27.6 | 58.5 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1990 | 1993 | 1977 | 1998 | 1977 | 1998 | 1988 | 1995 | 1996 | 1998 |
| Lowest Mean Min. Temperature (F) | 2.0 | 13.6 | 19.8 | 28.9 | 36.7 | 43.9 | 47.4 | 45.7 | 34.7 | 26.1 | 14.7 | 2.6 | 2.0 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1983 | 1982 | 1983 | 1993 | 1975 | 1985 | 1976 | 1985 | 1985 | 1977 |
| Mean Precipitation (in.) | 0.80 | 0.84 | 0.90 | 0.97 | 1.00 | 0.81 | 0.46 | 0.40 | 0.46 | 0.47 | 0.78 | 0.78 | 8.67 |
| Highest Precipitation (in.) | 2.09 | 2.58 | 2.27 | 2.77 | 3.83 | 2.31 | 1.84 | 1.96 | 1.54 | 2.34 | 1.86 | 2.00 | 3.83 |
| Year Highest Occurred | 1997 | 1986 | 1981 | 1978 | 1998 | 1995 | 1984 | 1976 | 1980 | 1975 | 1982 | 1983 | 1998 |
| Lowest Precipitation (in.) | 0.08 | 0.16 | 0.10 | 0.18 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1997 | 1977 | 1976 | 1986 | 1994 | 1997 | 1990 | 1988 | 1976 | 1976 | 1986 |
| Heating Degree Days (F) | 1072. | 799. | 700. | 497. | 276. | 100. | 17. | 24. | 153. | 441. | 803. | 1074. | 5956. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 14. | 107. | 267. | 231. | 63. | 2. | 0. | 0. | 686. |