| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.3 | 39.3 | 49.5 | 59.1 | 67.3 | 74.9 | 83.2 | 83.2 | 73.7 | 59.8 | 41.7 | 32.6 | 58.1 |
| Highest Mean Max. Temperature (F) | 40.4 | 49.1 | 58.8 | 66.4 | 74.2 | 82.5 | 91.8 | 88.2 | 82.5 | 66.6 | 49.2 | 39.3 | 91.8 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1986 | 1985 | 1981 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 19.6 | 30.1 | 42.1 | 52.9 | 61.2 | 68.9 | 72.3 | 77.4 | 65.2 | 56.1 | 27.4 | 22.7 | 19.6 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1996 | 1981 | 1993 | 1993 | 1985 | 1971 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 26.2 | 32.1 | 39.5 | 45.9 | 52.9 | 59.3 | 65.6 | 65.6 | 57.4 | 46.1 | 34.4 | 26.5 | 46.0 |
| Highest Mean Temperature (F) | 34.8 | 40.7 | 45.0 | 50.4 | 58.5 | 65.1 | 70.6 | 69.6 | 62.7 | 52.3 | 41.5 | 33.5 | 70.6 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1993 | 1992 | 1985 | 1977 | 1990 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Temperature (F) | 11.5 | 21.6 | 33.1 | 41.1 | 48.2 | 55.0 | 60.1 | 60.2 | 51.9 | 42.8 | 19.7 | 17.1 | 11.5 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1972 | 1996 | 1991 | 1993 | 1995 | 1972 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 20.1 | 24.8 | 29.4 | 32.7 | 38.4 | 43.7 | 48.0 | 47.9 | 41.0 | 32.4 | 27.1 | 20.4 | 33.8 |
| Highest Mean Min. Temperature (F) | 29.8 | 32.5 | 35.0 | 36.7 | 43.5 | 49.0 | 53.2 | 52.3 | 46.1 | 38.0 | 33.7 | 28.0 | 53.2 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1980 | 1993 | 1982 | 1975 | 1999 | 1997 | 1988 | 1999 | 1980 | 1975 |
| Lowest Mean Min. Temperature (F) | 3.4 | 13.0 | 23.4 | 27.3 | 33.0 | 39.7 | 43.9 | 42.1 | 36.2 | 28.4 | 12.0 | 8.7 | 3.4 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1972 | 1999 | 1976 | 1999 | 1995 | 1972 | 1991 | 1985 | 1984 | 1979 |
| Mean Precipitation (in.) | 1.32 | 1.19 | 1.25 | 0.99 | 1.29 | 0.95 | 0.66 | 0.49 | 0.62 | 0.88 | 1.69 | 1.83 | 13.16 |
| Highest Precipitation (in.) | 2.91 | 2.18 | 2.88 | 2.17 | 2.82 | 2.40 | 3.20 | 1.62 | 1.71 | 2.98 | 5.00 | 3.96 | 5.00 |
| Year Highest Occurred | 1995 | 1983 | 1995 | 1978 | 1980 | 1982 | 1993 | 1979 | 1982 | 1996 | 1973 | 1973 | 1973 |
| Lowest Precipitation (in.) | 0.37 | 0.11 | 0.18 | 0.04 | 0.13 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.38 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1994 | 1977 | 1982 | 1989 | 1988 | 2000 | 1999 | 1987 | 1990 | 1976 | 1988 |
| Heating Degree Days (F) | 1202. | 923. | 792. | 572. | 379. | 197. | 73. | 83. | 257. | 586. | 919. | 1195. | 7178. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 26. | 90. | 100. | 27. | 0. | 0. | 0. | 245. |