| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 28.8 | 31.0 | 35.4 | 41.7 | 50.9 | 62.9 | 71.1 | 70.3 | 60.4 | 48.9 | 34.8 | 29.8 | 47.2 |
| Highest Mean Max. Temperature (F) | 38.6 | 38.6 | 44.0 | 49.8 | 56.9 | 68.8 | 75.2 | 73.0 | 68.8 | 55.4 | 46.6 | 40.4 | 75.2 |
| Year Highest Occurred | 1981 | 1991 | 1972 | 1987 | 1992 | 1988 | 1976 | 1994 | 1979 | 1988 | 1999 | 1980 | 1976 |
| Lowest Mean Max. Temperature (F) | 19.7 | 22.6 | 29.9 | 33.7 | 40.3 | 56.0 | 65.4 | 67.0 | 51.6 | 40.0 | 27.2 | 22.6 | 19.7 |
| Year Lowest Occurred | 1979 | 1985 | 1982 | 1983 | 1983 | 1998 | 1993 | 1975 | 1986 | 1984 | 1992 | 1990 | 1979 |
| Mean Temperature (F) | 21.4 | 23.4 | 27.4 | 33.3 | 41.6 | 52.2 | 59.9 | 59.3 | 50.4 | 40.0 | 27.3 | 22.4 | 38.2 |
| Highest Mean Temperature (F) | 30.1 | 30.4 | 34.0 | 40.4 | 47.3 | 57.4 | 63.1 | 62.4 | 56.6 | 46.3 | 36.2 | 32.0 | 63.1 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1992 | 1992 | 1988 | 2000 | 1981 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 13.9 | 16.0 | 21.5 | 26.3 | 34.5 | 46.3 | 54.0 | 55.9 | 43.0 | 32.7 | 20.7 | 14.3 | 13.9 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1983 | 1998 | 1993 | 1975 | 1986 | 1984 | 1992 | 1990 | 1979 |
| Mean Min. Temperature (F) | 14.0 | 15.8 | 19.3 | 24.8 | 32.3 | 41.5 | 48.7 | 48.3 | 40.3 | 31.1 | 19.7 | 15.0 | 29.2 |
| Highest Mean Min. Temperature (F) | 21.7 | 22.3 | 26.7 | 32.0 | 37.6 | 46.0 | 52.6 | 52.3 | 45.2 | 37.1 | 26.1 | 23.6 | 52.6 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1992 | 1992 | 1988 | 1985 | 1981 | 1983 | 1988 | 1980 | 1980 | 1985 |
| Lowest Mean Min. Temperature (F) | 8.2 | 9.5 | 10.6 | 18.8 | 27.4 | 36.6 | 42.6 | 42.9 | 33.5 | 25.3 | 13.3 | 6.0 | 6.0 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1979 | 1998 | 1993 | 1976 | 1971 | 1984 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.99 | 5.88 | 6.62 | 5.34 | 4.26 | 1.89 | 1.75 | 1.96 | 2.82 | 4.08 | 5.66 | 6.01 | 52.26 |
| Highest Precipitation (in.) | 16.70 | 13.73 | 15.09 | 13.09 | 10.15 | 7.02 | 4.49 | 6.36 | 13.47 | 9.99 | 13.79 | 25.45 | 25.45 |
| Year Highest Occurred | 1980 | 1980 | 1982 | 1986 | 1981 | 1984 | 1987 | 1983 | 1982 | 1981 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.99 | 2.14 | 2.06 | 0.44 | 0.14 | 0.11 | 0.00 | 0.09 | 0.06 | 0.32 | 0.60 | 0.26 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1997 | 1987 | 1972 | 1994 | 1971 | 1985 | 1979 | 1978 | 1976 | 1976 | 1971 |
| Heating Degree Days (F) | 1351. | 1165. | 1152. | 952. | 726. | 389. | 174. | 184. | 440. | 775. | 1132. | 1321. | 9761. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 15. | 7. | 0. | 0. | 0. | 0. | 28. |