| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.7 | 41.0 | 49.3 | 57.8 | 66.6 | 73.7 | 82.6 | 83.7 | 73.9 | 59.9 | 43.1 | 35.8 | 58.5 |
| Highest Mean Max. Temperature (F) | 42.3 | 49.0 | 57.5 | 65.1 | 72.8 | 81.2 | 92.8 | 92.6 | 82.9 | 68.3 | 49.8 | 40.6 | 92.8 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1992 | 1985 | 1986 | 1990 | 1988 | 1995 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 23.5 | 30.0 | 43.8 | 51.1 | 60.7 | 65.9 | 72.0 | 76.8 | 64.3 | 55.1 | 32.2 | 27.1 | 23.5 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1984 | 1981 | 1993 | 1980 | 1985 | 1995 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 28.4 | 33.0 | 39.6 | 46.6 | 54.7 | 61.7 | 68.7 | 69.2 | 60.3 | 48.9 | 36.7 | 30.3 | 48.2 |
| Highest Mean Temperature (F) | 35.4 | 39.6 | 44.4 | 51.3 | 59.6 | 67.3 | 75.2 | 75.4 | 66.1 | 55.5 | 42.3 | 35.1 | 75.4 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1993 | 1986 | 1985 | 1986 | 1998 | 1988 | 1999 | 1979 | 1986 |
| Lowest Mean Temperature (F) | 14.8 | 21.5 | 34.5 | 41.4 | 50.6 | 56.8 | 62.1 | 64.3 | 54.3 | 45.5 | 25.9 | 21.3 | 14.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1984 | 1981 | 1993 | 1980 | 1985 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 22.1 | 25.0 | 29.8 | 35.4 | 42.8 | 49.6 | 54.8 | 54.7 | 46.6 | 37.9 | 30.3 | 24.8 | 37.8 |
| Highest Mean Min. Temperature (F) | 29.1 | 31.1 | 33.7 | 38.7 | 46.9 | 53.7 | 61.4 | 58.2 | 52.6 | 42.6 | 36.5 | 30.5 | 61.4 |
| Year Highest Occurred | 1990 | 1992 | 1983 | 1994 | 1993 | 1986 | 1998 | 1986 | 1998 | 1988 | 1998 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 6.1 | 13.0 | 25.1 | 30.8 | 40.0 | 46.3 | 52.1 | 50.8 | 43.7 | 35.3 | 19.6 | 15.5 | 6.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1982 | 1976 | 1993 | 1995 | 1971 | 1987 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 3.28 | 2.47 | 2.34 | 1.89 | 2.25 | 2.06 | 1.02 | 1.16 | 1.12 | 1.67 | 3.35 | 3.46 | 26.07 |
| Highest Precipitation (in.) | 8.70 | 5.77 | 4.72 | 3.53 | 4.75 | 4.62 | 3.22 | 3.32 | 2.56 | 5.01 | 8.76 | 6.73 | 8.76 |
| Year Highest Occurred | 1998 | 1999 | 1983 | 1982 | 1980 | 1971 | 1983 | 1978 | 1985 | 1996 | 1973 | 1977 | 1973 |
| Lowest Precipitation (in.) | 0.39 | 0.65 | 0.57 | 0.23 | 0.64 | 0.48 | 0.00 | 0.01 | 0.00 | 0.04 | 0.89 | 0.78 | 0.00 |
| Year Lowest Occurred | 1985 | 1977 | 1992 | 1998 | 1992 | 1982 | 1985 | 2000 | 1976 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 1135. | 895. | 789. | 552. | 324. | 143. | 46. | 41. | 191. | 499. | 849. | 1076. | 6540. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 43. | 160. | 171. | 48. | 0. | 0. | 0. | 426. |