| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.8 | 43.8 | 51.9 | 58.8 | 67.4 | 75.6 | 85.1 | 85.3 | 76.3 | 64.2 | 47.6 | 39.0 | 61.2 |
| Highest Mean Max. Temperature (F) | 48.7 | 52.6 | 57.2 | 65.9 | 73.9 | 84.1 | 91.9 | 90.5 | 82.8 | 74.0 | 53.5 | 46.3 | 91.9 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1998 | 1988 | 1989 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 24.6 | 31.6 | 47.0 | 53.0 | 61.7 | 68.7 | 74.3 | 76.9 | 68.5 | 58.5 | 36.0 | 26.5 | 24.6 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1996 | 1980 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 31.5 | 35.4 | 41.5 | 46.6 | 53.4 | 60.6 | 68.3 | 68.6 | 61.0 | 50.8 | 38.7 | 31.4 | 49.0 |
| Highest Mean Temperature (F) | 39.4 | 43.0 | 46.5 | 51.9 | 58.8 | 67.7 | 74.2 | 73.1 | 66.5 | 58.8 | 44.7 | 36.7 | 74.2 |
| Year Highest Occurred | 1994 | 1991 | 1986 | 1987 | 1992 | 1986 | 1985 | 1986 | 1998 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Temperature (F) | 16.2 | 23.0 | 36.2 | 41.3 | 49.1 | 55.5 | 60.0 | 63.7 | 55.1 | 46.4 | 26.6 | 19.3 | 16.2 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1996 | 1980 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 24.1 | 26.9 | 31.0 | 34.3 | 39.4 | 45.5 | 51.4 | 51.8 | 45.6 | 37.3 | 29.7 | 23.8 | 36.7 |
| Highest Mean Min. Temperature (F) | 30.2 | 33.3 | 36.6 | 38.7 | 44.4 | 51.3 | 56.6 | 57.0 | 50.2 | 43.6 | 36.0 | 29.5 | 57.0 |
| Year Highest Occurred | 1999 | 1991 | 1986 | 1992 | 1993 | 1986 | 1985 | 1977 | 1998 | 1988 | 1999 | 1973 | 1977 |
| Lowest Mean Min. Temperature (F) | 7.8 | 14.3 | 25.4 | 28.1 | 33.7 | 39.9 | 45.7 | 47.7 | 40.5 | 34.2 | 17.3 | 12.1 | 7.8 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1982 | 1975 | 1975 | 1993 | 1980 | 1971 | 1972 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 1.46 | 1.23 | 1.18 | 1.09 | 1.14 | 0.85 | 0.49 | 0.47 | 0.56 | 0.89 | 1.66 | 1.52 | 12.54 |
| Highest Precipitation (in.) | 3.85 | 3.10 | 2.42 | 2.53 | 4.63 | 1.94 | 2.90 | 2.60 | 1.82 | 2.63 | 3.53 | 5.69 | 5.69 |
| Year Highest Occurred | 1995 | 1986 | 1983 | 1978 | 1998 | 1984 | 1978 | 1976 | 1986 | 1982 | 1996 | 1981 | 1981 |
| Lowest Precipitation (in.) | 0.26 | 0.18 | 0.22 | 0.07 | 0.10 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.08 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1977 | 1977 | 1975 | 1974 | 1988 | 2000 | 1999 | 1988 | 1993 | 1976 | 1988 |
| Heating Degree Days (F) | 1040. | 831. | 729. | 553. | 365. | 178. | 56. | 41. | 179. | 444. | 790. | 1041. | 6247. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 45. | 156. | 152. | 57. | 2. | 0. | 0. | 417. |