| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 25.7 | 32.4 | 43.9 | 58.5 | 70.9 | 80.7 | 86.4 | 84.7 | 75.6 | 62.0 | 42.8 | 30.1 | 57.8 |
| Highest Mean Max. Temperature (F) | 40.1 | 44.9 | 54.4 | 67.0 | 78.3 | 89.5 | 94.8 | 91.1 | 83.8 | 66.8 | 58.2 | 40.5 | 94.8 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1987 | 1977 | 1988 | 1974 | 1983 | 1998 | 1974 | 1999 | 1999 | 1974 |
| Lowest Mean Max. Temperature (F) | 10.6 | 16.0 | 34.0 | 49.5 | 63.9 | 74.1 | 75.8 | 77.5 | 68.6 | 57.7 | 29.8 | 10.9 | 10.6 |
| Year Lowest Occurred | 1978 | 1979 | 1984 | 1995 | 1995 | 1982 | 1992 | 1992 | 1993 | 1981 | 1985 | 1983 | 1978 |
| Mean Temperature (F) | 15.1 | 21.9 | 33.2 | 46.8 | 59.1 | 68.9 | 74.2 | 72.0 | 62.0 | 48.8 | 32.4 | 19.8 | 46.2 |
| Highest Mean Temperature (F) | 30.1 | 34.2 | 40.6 | 54.1 | 65.8 | 76.0 | 78.7 | 78.8 | 68.2 | 54.4 | 43.4 | 28.7 | 78.8 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1981 | 1977 | 1988 | 1974 | 1983 | 1998 | 1973 | 1999 | 1999 | 1983 |
| Lowest Mean Temperature (F) | 0.1 | 5.6 | 24.5 | 40.7 | 53.9 | 62.9 | 66.0 | 66.7 | 56.6 | 44.1 | 21.1 | 1.1 | 0.1 |
| Year Lowest Occurred | 1978 | 1979 | 1975 | 1975 | 1997 | 1982 | 1992 | 1992 | 1993 | 1976 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 4.4 | 11.3 | 22.5 | 35.1 | 47.2 | 57.0 | 61.9 | 59.3 | 48.3 | 35.5 | 22.0 | 9.5 | 34.5 |
| Highest Mean Min. Temperature (F) | 20.1 | 23.8 | 30.5 | 41.5 | 53.3 | 64.0 | 65.5 | 66.5 | 52.5 | 42.7 | 28.7 | 19.4 | 66.5 |
| Year Highest Occurred | 1990 | 1998 | 1973 | 1981 | 1977 | 1991 | 1983 | 1983 | 1998 | 1973 | 1987 | 1997 | 1983 |
| Lowest Mean Min. Temperature (F) | -10.4 | -4.8 | 13.2 | 30.0 | 41.9 | 51.6 | 56.2 | 51.8 | 40.8 | 30.3 | 12.5 | -8.6 | -10.4 |
| Year Lowest Occurred | 1978 | 1979 | 1975 | 1996 | 1979 | 1982 | 1992 | 1974 | 1974 | 1976 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.47 | 0.67 | 1.66 | 2.71 | 3.33 | 3.52 | 2.64 | 2.32 | 2.27 | 1.54 | 1.20 | 0.53 | 22.86 |
| Highest Precipitation (in.) | 1.52 | 2.01 | 7.49 | 7.07 | 10.03 | 11.11 | 9.81 | 6.62 | 6.83 | 5.72 | 3.90 | 1.99 | 11.11 |
| Year Highest Occurred | 1988 | 1984 | 1987 | 1986 | 1972 | 1984 | 1993 | 1977 | 1986 | 1998 | 2000 | 1987 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.10 | 0.37 | 0.65 | 0.41 | 0.28 | 0.26 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1995 | 1998 | 1997 | 1987 | 1994 | 1988 | 1975 | 1983 | 1974 | 1988 | 1980 | 1997 | 1995 |
| Heating Degree Days (F) | 1549. | 1209. | 986. | 548. | 225. | 47. | 10. | 20. | 147. | 503. | 977. | 1401. | 7622. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 41. | 163. | 293. | 236. | 55. | 0. | 0. | 0. | 791. |