| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.8 | 45.1 | 51.8 | 59.1 | 68.7 | 79.2 | 88.7 | 87.6 | 77.5 | 65.1 | 48.4 | 39.4 | 62.5 |
| Highest Mean Max. Temperature (F) | 47.0 | 55.4 | 58.1 | 69.3 | 79.3 | 87.9 | 93.8 | 92.6 | 83.7 | 75.8 | 58.6 | 47.0 | 93.8 |
| Year Highest Occurred | 1986 | 1995 | 1992 | 1987 | 1992 | 1974 | 1985 | 1971 | 1990 | 1988 | 1995 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 28.9 | 34.8 | 45.7 | 48.9 | 60.8 | 72.4 | 78.7 | 79.8 | 68.1 | 55.2 | 37.4 | 28.2 | 28.2 |
| Year Lowest Occurred | 1993 | 1993 | 1985 | 1975 | 1998 | 1998 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 27.1 | 32.7 | 38.4 | 44.0 | 52.4 | 60.7 | 68.3 | 66.4 | 57.0 | 46.1 | 35.0 | 27.2 | 46.3 |
| Highest Mean Temperature (F) | 37.6 | 40.5 | 44.0 | 49.2 | 59.2 | 66.6 | 75.2 | 70.6 | 62.1 | 52.5 | 41.9 | 33.8 | 75.2 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1990 | 1992 | 1977 | 1985 | 1971 | 1990 | 1988 | 1995 | 1981 | 1985 |
| Lowest Mean Temperature (F) | 17.6 | 23.8 | 33.1 | 36.7 | 46.5 | 54.8 | 60.1 | 62.4 | 51.0 | 39.8 | 27.7 | 14.5 | 14.5 |
| Year Lowest Occurred | 1993 | 1985 | 1985 | 1975 | 1977 | 1984 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 15.3 | 20.2 | 25.0 | 28.9 | 36.0 | 42.1 | 47.9 | 45.2 | 36.5 | 27.0 | 21.6 | 14.9 | 30.1 |
| Highest Mean Min. Temperature (F) | 28.1 | 29.3 | 32.1 | 32.0 | 41.4 | 48.5 | 56.6 | 50.2 | 43.4 | 33.0 | 26.8 | 24.8 | 56.6 |
| Year Highest Occurred | 1986 | 1986 | 1993 | 1990 | 1987 | 1977 | 1985 | 1977 | 1998 | 1972 | 1991 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | 4.6 | 10.0 | 19.7 | 22.0 | 30.0 | 37.1 | 41.5 | 40.4 | 32.9 | 21.3 | 11.8 | 0.7 | 0.7 |
| Year Lowest Occurred | 1984 | 1985 | 1976 | 1982 | 1974 | 1984 | 1993 | 1995 | 1978 | 1974 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.81 | 0.56 | 0.90 | 1.06 | 1.17 | 1.02 | 0.34 | 0.36 | 0.58 | 0.70 | 0.81 | 0.90 | 9.21 |
| Highest Precipitation (in.) | 2.10 | 2.02 | 1.84 | 3.28 | 3.10 | 2.73 | 1.60 | 1.83 | 1.94 | 2.17 | 2.51 | 3.69 | 3.69 |
| Year Highest Occurred | 1973 | 1986 | 1983 | 1973 | 1998 | 1972 | 1982 | 1973 | 1980 | 2000 | 1977 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.06 | 0.10 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.05 | 0.00 |
| Year Lowest Occurred | 1994 | 1988 | 1988 | 1982 | 1972 | 1974 | 1999 | 1999 | 1999 | 1988 | 2000 | 1976 | 1988 |
| Heating Degree Days (F) | 1177. | 906. | 826. | 631. | 394. | 174. | 55. | 55. | 255. | 588. | 901. | 1174. | 7136. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 43. | 158. | 97. | 15. | 0. | 0. | 0. | 316. |