| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 29.7 | 34.5 | 41.1 | 50.7 | 60.2 | 69.6 | 78.1 | 77.2 | 67.9 | 55.7 | 39.0 | 30.0 | 52.8 |
| Highest Mean Max. Temperature (F) | 37.8 | 41.9 | 50.7 | 62.1 | 68.9 | 78.9 | 85.3 | 84.2 | 75.7 | 65.3 | 54.4 | 37.6 | 85.3 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1992 | 1988 | 2000 | 2000 | 1990 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 20.6 | 26.9 | 34.2 | 39.6 | 53.1 | 63.3 | 68.5 | 72.0 | 58.9 | 46.9 | 31.1 | 21.9 | 20.6 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1975 | 1984 | 1993 | 1980 | 1985 | 1984 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 18.9 | 23.3 | 30.6 | 38.7 | 46.8 | 54.1 | 60.7 | 59.6 | 51.0 | 40.7 | 27.6 | 18.9 | 39.2 |
| Highest Mean Temperature (F) | 27.1 | 31.5 | 38.0 | 45.6 | 52.5 | 60.9 | 66.1 | 67.7 | 57.8 | 48.4 | 38.2 | 25.8 | 67.7 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1987 | 1992 | 1988 | 2000 | 2000 | 1990 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 6.6 | 13.7 | 21.8 | 30.5 | 41.3 | 49.8 | 53.6 | 54.1 | 44.2 | 34.4 | 20.8 | 9.3 | 6.6 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1975 | 1984 | 1993 | 1976 | 1971 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 8.1 | 12.0 | 20.0 | 26.6 | 33.3 | 38.5 | 43.2 | 42.0 | 34.1 | 25.6 | 16.2 | 7.7 | 25.6 |
| Highest Mean Min. Temperature (F) | 19.0 | 21.1 | 26.9 | 31.3 | 38.3 | 43.0 | 47.9 | 51.2 | 42.8 | 32.1 | 24.9 | 17.3 | 51.2 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1992 | 1997 | 1988 | 1998 | 2000 | 1998 | 2000 | 1995 | 1996 | 2000 |
| Lowest Mean Min. Temperature (F) | -7.4 | 0.5 | 9.4 | 20.6 | 28.6 | 34.0 | 38.7 | 35.7 | 27.6 | 20.3 | 7.6 | -3.8 | -7.4 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1982 | 1982 | 1976 | 1993 | 1976 | 1971 | 1976 | 1993 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.41 | 1.12 | 1.48 | 1.43 | 2.03 | 1.20 | 1.06 | 0.90 | 1.13 | 1.17 | 1.59 | 1.35 | 15.87 |
| Highest Precipitation (in.) | 3.87 | 3.48 | 3.87 | 2.78 | 4.64 | 2.34 | 3.03 | 2.20 | 2.93 | 2.47 | 4.11 | 4.08 | 4.64 |
| Year Highest Occurred | 1996 | 1986 | 1995 | 1978 | 1993 | 1972 | 1987 | 1983 | 1982 | 1975 | 1988 | 1996 | 1993 |
| Lowest Precipitation (in.) | 0.11 | 0.23 | 0.18 | 0.21 | 0.23 | 0.35 | 0.00 | 0.11 | 0.00 | 0.02 | 0.02 | 0.09 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1994 | 1987 | 1992 | 1994 | 1988 | 1996 | 1987 | 1988 | 1976 | 1976 | 1988 |
| Heating Degree Days (F) | 1430. | 1168. | 1067. | 791. | 567. | 334. | 170. | 204. | 426. | 755. | 1123. | 1429. | 9464. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 35. | 37. | 7. | 0. | 0. | 0. | 85. |