| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.6 | 48.0 | 51.4 | 55.7 | 60.8 | 64.7 | 68.8 | 69.1 | 66.3 | 57.8 | 50.0 | 45.8 | 57.0 |
| Highest Mean Max. Temperature (F) | 50.2 | 52.1 | 55.0 | 59.2 | 66.0 | 70.2 | 73.1 | 72.5 | 71.9 | 61.8 | 54.1 | 51.5 | 73.1 |
| Year Highest Occurred | 1981 | 1977 | 1983 | 1980 | 1995 | 1978 | 1996 | 1981 | 1974 | 1999 | 1997 | 1999 | 1996 |
| Lowest Mean Max. Temperature (F) | 41.0 | 40.1 | 47.6 | 50.7 | 56.7 | 61.5 | 60.2 | 65.2 | 61.2 | 55.0 | 39.8 | 40.6 | 39.8 |
| Year Lowest Occurred | 1993 | 1989 | 1991 | 1986 | 1986 | 1971 | 1986 | 1975 | 1986 | 1985 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 40.0 | 41.8 | 44.4 | 47.9 | 52.9 | 56.9 | 60.3 | 60.6 | 57.7 | 50.6 | 44.1 | 40.5 | 49.8 |
| Highest Mean Temperature (F) | 44.7 | 45.3 | 48.3 | 50.5 | 57.4 | 61.5 | 64.4 | 64.2 | 61.0 | 54.9 | 47.3 | 46.8 | 64.4 |
| Year Highest Occurred | 1981 | 1977 | 2000 | 1980 | 1993 | 2000 | 1999 | 1999 | 1999 | 1999 | 1997 | 1999 | 1999 |
| Lowest Mean Temperature (F) | 34.8 | 33.9 | 40.7 | 43.4 | 49.0 | 53.8 | 53.6 | 56.3 | 53.0 | 47.8 | 34.7 | 34.7 | 33.9 |
| Year Lowest Occurred | 1993 | 1989 | 1971 | 1986 | 1986 | 1985 | 1986 | 1987 | 1986 | 1985 | 1985 | 1985 | 1989 |
| Mean Min. Temperature (F) | 34.4 | 35.5 | 37.3 | 40.0 | 44.9 | 49.1 | 51.7 | 52.1 | 49.0 | 43.4 | 38.2 | 35.1 | 42.6 |
| Highest Mean Min. Temperature (F) | 39.4 | 39.5 | 42.7 | 43.3 | 49.5 | 54.0 | 56.5 | 56.6 | 52.1 | 47.9 | 41.4 | 42.0 | 56.6 |
| Year Highest Occurred | 2000 | 2000 | 2000 | 1994 | 1993 | 2000 | 1999 | 1999 | 2000 | 1999 | 1983 | 1999 | 1999 |
| Lowest Mean Min. Temperature (F) | 28.6 | 27.6 | 32.4 | 36.1 | 41.2 | 45.0 | 46.9 | 47.0 | 43.7 | 38.2 | 29.5 | 28.8 | 27.6 |
| Year Lowest Occurred | 1993 | 1989 | 1988 | 1986 | 1986 | 1985 | 1986 | 1987 | 1985 | 1987 | 1985 | 1985 | 1989 |
| Mean Precipitation (in.) | 3.86 | 2.79 | 2.12 | 1.30 | 1.07 | 0.88 | 0.61 | 0.76 | 1.07 | 2.46 | 4.40 | 4.40 | 25.72 |
| Highest Precipitation (in.) | 7.81 | 5.41 | 4.86 | 3.55 | 3.43 | 2.26 | 2.02 | 3.67 | 3.08 | 7.28 | 9.64 | 9.01 | 9.64 |
| Year Highest Occurred | 1999 | 1999 | 1997 | 1991 | 1998 | 1980 | 1995 | 1975 | 1972 | 1985 | 1990 | 1996 | 1990 |
| Lowest Precipitation (in.) | 0.40 | 0.37 | 0.54 | 0.23 | 0.10 | 0.17 | 0.00 | 0.00 | 0.02 | 0.00 | 0.52 | 0.17 | 0.00 |
| Year Lowest Occurred | 1981 | 1993 | 1979 | 1998 | 1972 | 1978 | 1984 | 1986 | 1991 | 1987 | 1979 | 1985 | 1984 |
| Heating Degree Days (F) | 774. | 652. | 641. | 516. | 376. | 246. | 164. | 151. | 229. | 447. | 628. | 762. | 5586. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 2. | 17. | 15. | 8. | 0. | 0. | 0. | 42. |