| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 24.8 | 31.6 | 43.6 | 58.1 | 70.0 | 80.0 | 86.9 | 85.5 | 76.0 | 61.5 | 41.3 | 29.0 | 57.4 |
| Highest Mean Max. Temperature (F) | 39.8 | 43.6 | 54.7 | 67.4 | 77.7 | 89.1 | 94.6 | 92.8 | 84.2 | 68.5 | 57.7 | 42.4 | 94.6 |
| Year Highest Occurred | 1990 | 1976 | 2000 | 1981 | 1977 | 1988 | 1974 | 1983 | 1979 | 1974 | 1999 | 1979 | 1974 |
| Lowest Mean Max. Temperature (F) | 9.4 | 14.3 | 33.8 | 47.3 | 61.9 | 71.8 | 73.5 | 75.3 | 68.1 | 57.2 | 26.7 | 8.1 | 8.1 |
| Year Lowest Occurred | 1978 | 1978 | 1996 | 1995 | 1995 | 1993 | 1992 | 1992 | 1993 | 1995 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 13.3 | 20.0 | 31.6 | 44.9 | 57.3 | 67.1 | 73.1 | 71.3 | 61.0 | 47.3 | 30.0 | 17.8 | 44.6 |
| Highest Mean Temperature (F) | 27.8 | 32.1 | 39.2 | 52.3 | 64.3 | 74.8 | 78.3 | 76.7 | 67.6 | 51.7 | 41.5 | 28.1 | 78.3 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1981 | 1977 | 1988 | 1974 | 1983 | 1978 | 1973 | 1999 | 1979 | 1974 |
| Lowest Mean Temperature (F) | -1.6 | 4.7 | 21.8 | 37.0 | 51.7 | 61.4 | 63.5 | 64.2 | 53.7 | 43.4 | 17.1 | -0.9 | -1.6 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1995 | 1995 | 1993 | 1992 | 1992 | 1993 | 1976 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 1.7 | 8.3 | 19.6 | 31.7 | 44.5 | 54.1 | 59.3 | 57.0 | 46.0 | 33.1 | 18.7 | 6.6 | 31.7 |
| Highest Mean Min. Temperature (F) | 15.8 | 22.5 | 27.4 | 37.2 | 50.9 | 60.5 | 62.5 | 61.3 | 51.7 | 37.8 | 26.7 | 17.4 | 62.5 |
| Year Highest Occurred | 1990 | 1998 | 1973 | 1981 | 1977 | 1988 | 1998 | 1995 | 1998 | 1973 | 1987 | 1997 | 1998 |
| Lowest Mean Min. Temperature (F) | -12.6 | -7.2 | 9.8 | 26.6 | 38.1 | 48.9 | 53.5 | 51.4 | 39.3 | 28.7 | 7.4 | -9.9 | -12.6 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1996 | 1983 | 1985 | 1992 | 1985 | 1993 | 1976 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.27 | 0.41 | 1.17 | 2.00 | 3.03 | 3.20 | 2.58 | 2.21 | 1.82 | 1.67 | 0.70 | 0.40 | 19.46 |
| Highest Precipitation (in.) | 0.90 | 1.65 | 3.87 | 4.43 | 6.67 | 7.36 | 5.12 | 4.47 | 7.14 | 6.51 | 1.89 | 3.86 | 7.36 |
| Year Highest Occurred | 1997 | 1991 | 1977 | 1986 | 1972 | 1990 | 1982 | 1998 | 1996 | 1998 | 1993 | 1996 | 1990 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.02 | 0.23 | 0.21 | 0.86 | 0.28 | 0.28 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1983 | 1983 | 1978 | 1980 | 1994 | 1978 | 1991 | 1974 | 1979 | 1992 | 1990 | 1986 | 1983 |
| Heating Degree Days (F) | 1603. | 1262. | 1035. | 605. | 265. | 72. | 22. | 33. | 183. | 549. | 1049. | 1463. | 8141. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 25. | 133. | 272. | 227. | 62. | 0. | 0. | 0. | 721. |