| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.0 | 48.7 | 56.1 | 62.7 | 70.8 | 78.7 | 87.5 | 87.4 | 79.2 | 66.3 | 51.0 | 42.9 | 64.5 |
| Highest Mean Max. Temperature (F) | 52.4 | 56.8 | 62.9 | 70.6 | 81.5 | 85.5 | 94.5 | 93.8 | 86.6 | 76.7 | 58.1 | 49.2 | 94.5 |
| Year Highest Occurred | 1994 | 1988 | 1992 | 1990 | 1992 | 1986 | 1994 | 1971 | 1991 | 1988 | 1995 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 26.6 | 38.7 | 49.8 | 55.0 | 62.9 | 72.5 | 78.6 | 79.8 | 70.2 | 60.0 | 40.1 | 28.9 | 26.6 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1980 | 1993 | 1993 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 33.5 | 37.9 | 42.8 | 47.4 | 54.2 | 60.9 | 67.4 | 66.8 | 59.3 | 49.1 | 39.6 | 33.1 | 49.3 |
| Highest Mean Temperature (F) | 39.3 | 43.8 | 47.6 | 53.0 | 60.1 | 66.0 | 72.9 | 71.3 | 64.1 | 56.0 | 46.6 | 38.5 | 72.9 |
| Year Highest Occurred | 1992 | 1992 | 1986 | 1994 | 1992 | 1986 | 1998 | 1991 | 1998 | 1988 | 1995 | 1999 | 1998 |
| Lowest Mean Temperature (F) | 17.4 | 26.2 | 37.9 | 40.6 | 49.8 | 56.5 | 61.9 | 61.5 | 53.6 | 45.4 | 28.4 | 20.6 | 17.4 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1976 | 1993 | 1975 | 1985 | 1972 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 24.0 | 27.1 | 29.4 | 32.0 | 37.5 | 43.1 | 47.2 | 46.2 | 39.4 | 31.9 | 28.1 | 23.3 | 34.1 |
| Highest Mean Min. Temperature (F) | 31.0 | 34.6 | 34.5 | 38.2 | 42.6 | 46.5 | 52.9 | 52.6 | 44.3 | 36.2 | 35.1 | 30.0 | 52.9 |
| Year Highest Occurred | 1992 | 1992 | 1983 | 1994 | 1993 | 1986 | 1998 | 1991 | 1997 | 1979 | 1995 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 8.2 | 13.8 | 25.1 | 26.1 | 32.7 | 38.1 | 43.9 | 41.0 | 35.1 | 26.4 | 15.4 | 11.7 | 8.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1975 | 1976 | 1981 | 1980 | 1975 | 1974 | 1993 | 1972 | 1979 |
| Mean Precipitation (in.) | 1.25 | 0.93 | 0.89 | 0.83 | 0.95 | 0.58 | 0.53 | 0.48 | 0.46 | 0.76 | 1.39 | 1.21 | 10.26 |
| Highest Precipitation (in.) | 2.55 | 3.09 | 2.24 | 2.23 | 5.02 | 1.46 | 2.70 | 1.96 | 1.94 | 2.21 | 4.29 | 4.29 | 5.02 |
| Year Highest Occurred | 2000 | 1986 | 1983 | 1978 | 1998 | 1993 | 1987 | 1976 | 1973 | 1979 | 1984 | 1981 | 1998 |
| Lowest Precipitation (in.) | 0.14 | 0.04 | 0.04 | 0.03 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.05 | 0.00 |
| Year Lowest Occurred | 1985 | 1990 | 1977 | 1977 | 1974 | 1973 | 1994 | 2000 | 1999 | 1988 | 1990 | 1976 | 1973 |
| Heating Degree Days (F) | 977. | 759. | 690. | 530. | 339. | 154. | 50. | 65. | 208. | 493. | 764. | 990. | 6019. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 31. | 122. | 121. | 36. | 0. | 0. | 0. | 314. |