| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.7 | 41.7 | 49.8 | 57.9 | 66.0 | 74.8 | 83.9 | 83.5 | 74.8 | 62.8 | 45.0 | 36.0 | 59.3 |
| Highest Mean Max. Temperature (F) | 41.7 | 49.9 | 57.6 | 67.8 | 74.4 | 81.8 | 89.0 | 88.2 | 80.9 | 72.9 | 55.2 | 43.7 | 89.0 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1990 | 1992 | 1974 | 1994 | 1998 | 1974 | 1988 | 1976 | 1976 | 1994 |
| Lowest Mean Max. Temperature (F) | 27.1 | 30.5 | 43.8 | 48.2 | 56.9 | 69.5 | 74.6 | 74.1 | 64.8 | 53.7 | 35.6 | 26.2 | 26.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1982 | 1984 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 24.9 | 30.6 | 37.7 | 43.9 | 50.8 | 57.7 | 64.6 | 63.8 | 55.5 | 45.7 | 33.5 | 25.4 | 44.5 |
| Highest Mean Temperature (F) | 31.5 | 37.0 | 43.2 | 50.2 | 55.3 | 62.2 | 68.8 | 67.6 | 59.7 | 52.3 | 39.8 | 31.4 | 68.8 |
| Year Highest Occurred | 1998 | 1995 | 1978 | 1990 | 1992 | 1986 | 1985 | 1986 | 1998 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 13.9 | 18.7 | 32.5 | 36.2 | 44.9 | 54.3 | 57.4 | 59.0 | 48.4 | 40.9 | 23.3 | 13.3 | 13.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1982 | 1984 | 1993 | 1975 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 14.0 | 19.4 | 25.5 | 29.9 | 35.5 | 40.6 | 45.2 | 44.1 | 36.2 | 28.6 | 22.0 | 14.8 | 29.7 |
| Highest Mean Min. Temperature (F) | 21.4 | 26.9 | 30.6 | 33.6 | 39.2 | 44.0 | 50.2 | 48.4 | 40.0 | 35.5 | 27.7 | 22.9 | 50.2 |
| Year Highest Occurred | 1995 | 1980 | 1983 | 1994 | 1993 | 1992 | 1975 | 1999 | 1998 | 1979 | 1995 | 1973 | 1975 |
| Lowest Mean Min. Temperature (F) | 0.8 | 6.9 | 20.4 | 24.2 | 32.0 | 37.3 | 40.2 | 39.7 | 30.9 | 23.7 | 11.0 | 0.3 | 0.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1975 | 1975 | 1993 | 1985 | 1971 | 1974 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.72 | 0.64 | 0.91 | 0.70 | 1.15 | 0.59 | 0.38 | 0.53 | 0.57 | 0.64 | 1.23 | 0.88 | 8.94 |
| Highest Precipitation (in.) | 1.77 | 3.22 | 2.85 | 2.33 | 3.00 | 1.47 | 1.68 | 2.90 | 2.41 | 1.42 | 2.58 | 3.61 | 3.61 |
| Year Highest Occurred | 1998 | 1986 | 1983 | 1978 | 1998 | 1984 | 1987 | 1976 | 1986 | 1984 | 1981 | 1981 | 1981 |
| Lowest Precipitation (in.) | 0.09 | 0.03 | 0.07 | 0.08 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.11 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1976 | 1977 | 1975 | 1973 | 1988 | 1988 | 1999 | 1988 | 1974 | 1976 | 1973 |
| Heating Degree Days (F) | 1244. | 964. | 849. | 633. | 443. | 229. | 92. | 99. | 297. | 599. | 945. | 1228. | 7622. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 79. | 62. | 13. | 0. | 0. | 0. | 166. |