| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.6 | 40.6 | 49.6 | 58.5 | 69.3 | 80.2 | 87.9 | 86.4 | 77.0 | 64.6 | 47.2 | 36.6 | 61.0 |
| Highest Mean Max. Temperature (F) | 42.9 | 48.7 | 56.5 | 67.1 | 76.8 | 87.8 | 93.4 | 90.6 | 84.4 | 73.2 | 59.7 | 45.0 | 93.4 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1987 | 1992 | 1977 | 1988 | 2000 | 1979 | 1988 | 1999 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 25.7 | 32.4 | 42.1 | 48.6 | 63.0 | 72.9 | 80.9 | 83.0 | 69.3 | 54.5 | 38.3 | 28.1 | 25.7 |
| Year Lowest Occurred | 1973 | 1989 | 1973 | 1975 | 1983 | 1998 | 1993 | 1976 | 1986 | 1984 | 2000 | 1990 | 1973 |
| Mean Temperature (F) | 22.8 | 27.9 | 36.6 | 44.6 | 53.7 | 62.3 | 69.3 | 67.6 | 58.6 | 47.1 | 34.3 | 24.5 | 45.8 |
| Highest Mean Temperature (F) | 31.4 | 37.0 | 41.9 | 51.2 | 58.4 | 67.3 | 73.3 | 71.9 | 64.0 | 51.7 | 42.6 | 33.3 | 73.3 |
| Year Highest Occurred | 1999 | 2000 | 1999 | 2000 | 1994 | 1977 | 2000 | 2000 | 1990 | 1988 | 1999 | 1995 | 2000 |
| Lowest Mean Temperature (F) | 13.7 | 18.8 | 29.8 | 37.7 | 49.0 | 58.2 | 62.0 | 63.4 | 53.7 | 41.4 | 26.4 | 14.1 | 13.7 |
| Year Lowest Occurred | 1989 | 1985 | 1985 | 1975 | 1975 | 1993 | 1993 | 1975 | 1986 | 1984 | 2000 | 1990 | 1989 |
| Mean Min. Temperature (F) | 11.0 | 15.1 | 23.6 | 30.6 | 38.1 | 44.3 | 50.6 | 48.7 | 40.1 | 29.6 | 21.3 | 12.3 | 30.4 |
| Highest Mean Min. Temperature (F) | 21.4 | 25.3 | 27.7 | 35.4 | 42.2 | 48.6 | 56.3 | 54.8 | 48.3 | 33.5 | 27.2 | 24.1 | 56.3 |
| Year Highest Occurred | 1998 | 2000 | 1995 | 2000 | 1994 | 1997 | 1998 | 1994 | 1997 | 1998 | 1995 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | -1.5 | 4.1 | 16.2 | 26.7 | 34.3 | 40.1 | 43.1 | 43.1 | 33.7 | 25.7 | 14.5 | 0.1 | -1.5 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1980 | 1993 | 1975 | 1974 | 1991 | 2000 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.85 | 1.77 | 1.88 | 2.10 | 2.03 | 1.13 | 0.75 | 0.83 | 1.54 | 1.71 | 1.85 | 1.58 | 19.02 |
| Highest Precipitation (in.) | 4.27 | 6.88 | 3.48 | 5.53 | 5.04 | 3.68 | 2.14 | 2.64 | 7.13 | 4.47 | 4.33 | 5.76 | 7.13 |
| Year Highest Occurred | 1980 | 1986 | 1982 | 1974 | 1975 | 1998 | 1982 | 1986 | 1982 | 1971 | 1985 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.29 | 0.47 | 0.57 | 0.13 | 0.16 | 0.00 | 0.02 | 0.00 | 0.03 | 0.02 | 0.02 | 0.01 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1999 | 1987 | 1972 | 1994 | 1978 | 1985 | 1974 | 1988 | 1976 | 1976 | 1994 |
| Heating Degree Days (F) | 1309. | 1041. | 880. | 614. | 354. | 130. | 26. | 49. | 215. | 555. | 923. | 1259. | 7355. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 47. | 157. | 128. | 22. | 0. | 0. | 0. | 358. |