| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.6 | 34.2 | 36.2 | 41.0 | 47.6 | 53.5 | 61.5 | 63.0 | 57.3 | 47.6 | 35.6 | 32.8 | 45.2 |
| Highest Mean Max. Temperature (F) | 41.1 | 41.9 | 45.7 | 46.9 | 56.0 | 62.0 | 68.9 | 70.8 | 64.3 | 57.7 | 45.5 | 40.3 | 70.8 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1992 | 1992 | 1985 | 1986 | 1974 | 1988 | 1976 | 1985 | 1986 |
| Lowest Mean Max. Temperature (F) | 26.5 | 25.9 | 31.0 | 36.1 | 41.8 | 46.4 | 49.3 | 53.2 | 49.9 | 41.3 | 26.5 | 24.9 | 24.9 |
| Year Lowest Occurred | 1993 | 1989 | 1977 | 1972 | 1977 | 1980 | 1993 | 1980 | 1986 | 1995 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 26.6 | 27.9 | 29.5 | 33.3 | 39.2 | 44.8 | 51.7 | 53.2 | 48.3 | 39.9 | 29.7 | 26.6 | 37.6 |
| Highest Mean Temperature (F) | 34.9 | 35.9 | 38.3 | 38.5 | 44.6 | 51.4 | 58.6 | 60.8 | 55.1 | 48.9 | 38.0 | 33.7 | 60.8 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1988 | 1976 | 1985 | 1986 |
| Lowest Mean Temperature (F) | 20.7 | 19.7 | 24.7 | 28.1 | 34.4 | 40.3 | 41.8 | 46.4 | 42.4 | 33.5 | 19.7 | 17.4 | 17.4 |
| Year Lowest Occurred | 1993 | 1989 | 1977 | 1972 | 1984 | 1980 | 1993 | 1995 | 1985 | 1990 | 1985 | 1983 | 1983 |
| Mean Min. Temperature (F) | 20.6 | 21.6 | 22.8 | 25.6 | 30.8 | 36.1 | 41.9 | 43.4 | 39.2 | 32.1 | 23.7 | 20.4 | 29.9 |
| Highest Mean Min. Temperature (F) | 28.8 | 29.9 | 30.9 | 31.0 | 35.9 | 41.3 | 48.8 | 50.8 | 45.9 | 40.0 | 30.4 | 27.1 | 50.8 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1989 | 1997 | 1986 | 1998 | 1986 | 1974 | 1988 | 1976 | 1985 | 1986 |
| Lowest Mean Min. Temperature (F) | 13.9 | 13.4 | 17.4 | 20.2 | 26.6 | 30.9 | 34.3 | 37.4 | 33.3 | 25.5 | 12.8 | 9.9 | 9.9 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1972 | 1984 | 1976 | 1993 | 1995 | 1992 | 1990 | 1985 | 1983 | 1983 |
| Mean Precipitation (in.) | 18.21 | 13.93 | 12.87 | 9.00 | 5.51 | 3.92 | 2.16 | 2.28 | 4.74 | 8.53 | 19.07 | 19.72 | 119.94 |
| Highest Precipitation (in.) | 31.82 | 25.44 | 24.26 | 17.15 | 11.79 | 10.44 | 7.13 | 8.02 | 10.29 | 19.15 | 35.42 | 32.05 | 35.42 |
| Year Highest Occurred | 1972 | 1972 | 1997 | 1972 | 1984 | 1981 | 1983 | 1977 | 1977 | 1975 | 1995 | 1996 | 1995 |
| Lowest Precipitation (in.) | 1.21 | 1.41 | 2.82 | 2.95 | 0.83 | 0.27 | 0.00 | 0.13 | 0.00 | 0.25 | 6.32 | 5.47 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1998 | 1992 | 1977 | 1984 | 1973 | 1993 | 1987 | 1979 | 1985 | 1984 |
| Heating Degree Days (F) | 1190. | 1039. | 1086. | 951. | 800. | 607. | 420. | 379. | 510. | 780. | 1061. | 1191. | 10014. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 8. | 13. | 7. | 0. | 0. | 0. | 28. |