| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.8 | 41.3 | 46.3 | 52.5 | 61.8 | 73.1 | 77.7 | 75.6 | 68.9 | 58.8 | 45.0 | 37.9 | 56.4 |
| Highest Mean Max. Temperature (F) | 46.1 | 46.1 | 53.1 | 59.9 | 69.2 | 79.8 | 81.3 | 79.7 | 75.5 | 65.4 | 52.6 | 48.6 | 81.3 |
| Year Highest Occurred | 1986 | 2000 | 1999 | 1992 | 1974 | 1990 | 1989 | 1995 | 1998 | 1975 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 31.5 | 35.9 | 40.4 | 44.7 | 55.2 | 66.4 | 74.3 | 72.3 | 65.3 | 48.9 | 36.5 | 30.5 | 30.5 |
| Year Lowest Occurred | 1979 | 1971 | 1973 | 1983 | 1995 | 1982 | 1971 | 1981 | 1982 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 22.7 | 25.8 | 31.6 | 37.6 | 46.3 | 55.4 | 60.5 | 58.9 | 51.5 | 41.4 | 30.2 | 23.3 | 40.4 |
| Highest Mean Temperature (F) | 28.5 | 32.1 | 37.2 | 43.2 | 51.2 | 59.5 | 63.2 | 62.7 | 57.0 | 45.4 | 35.6 | 33.8 | 63.2 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1992 | 1996 | 1994 | 2000 | 2000 | 1998 | 1992 | 1995 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 15.1 | 19.1 | 27.9 | 30.0 | 40.9 | 50.5 | 58.0 | 56.0 | 47.6 | 34.4 | 22.1 | 15.2 | 15.1 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1983 | 1983 | 1982 | 1986 | 1978 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 7.6 | 10.3 | 16.9 | 22.7 | 30.8 | 37.6 | 43.3 | 42.2 | 34.1 | 24.0 | 15.3 | 8.6 | 24.5 |
| Highest Mean Min. Temperature (F) | 16.3 | 18.0 | 23.0 | 27.9 | 34.6 | 41.8 | 47.1 | 46.0 | 40.3 | 28.1 | 21.5 | 18.9 | 47.1 |
| Year Highest Occurred | 1999 | 2000 | 1972 | 1972 | 1992 | 1988 | 1999 | 2000 | 1997 | 1972 | 1973 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | -1.3 | 1.6 | 12.3 | 15.3 | 26.4 | 31.9 | 40.2 | 37.5 | 28.8 | 19.9 | 7.6 | -0.2 | -1.3 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1983 | 1983 | 1975 | 1986 | 1978 | 1971 | 1984 | 2000 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.40 | 0.54 | 1.28 | 1.92 | 2.10 | 1.76 | 2.55 | 2.68 | 1.25 | 1.15 | 0.89 | 0.58 | 17.10 |
| Highest Precipitation (in.) | 1.31 | 1.28 | 3.46 | 5.57 | 4.75 | 3.96 | 5.75 | 8.71 | 3.21 | 3.95 | 2.09 | 1.65 | 8.71 |
| Year Highest Occurred | 1989 | 1971 | 1990 | 1999 | 1995 | 1997 | 1998 | 1984 | 1996 | 1984 | 1991 | 1982 | 1984 |
| Lowest Precipitation (in.) | 0.04 | 0.03 | 0.26 | 0.20 | 0.12 | 0.00 | 0.20 | 0.10 | 0.13 | 0.00 | 0.01 | 0.03 | 0.00 |
| Year Lowest Occurred | 1977 | 1973 | 1982 | 1981 | 1974 | 1980 | 1994 | 1978 | 1992 | 1983 | 1984 | 1980 | 1980 |
| Heating Degree Days (F) | 1311. | 1099. | 1035. | 822. | 580. | 293. | 144. | 193. | 405. | 732. | 1046. | 1295. | 8955. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 3. | 4. | 5. | 0. | 0. | 0. | 0. | 12. |