| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.7 | 44.9 | 46.4 | 52.5 | 61.0 | 69.7 | 76.9 | 76.8 | 71.4 | 62.3 | 49.4 | 45.6 | 58.5 |
| Highest Mean Max. Temperature (F) | 52.9 | 53.4 | 53.5 | 61.9 | 69.6 | 75.0 | 80.8 | 82.1 | 79.9 | 71.1 | 61.4 | 54.8 | 82.1 |
| Year Highest Occurred | 1984 | 1977 | 1972 | 1985 | 1992 | 1985 | 1988 | 1981 | 1974 | 1988 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 38.6 | 36.6 | 39.3 | 43.1 | 48.9 | 63.5 | 71.6 | 69.0 | 59.9 | 54.0 | 39.3 | 36.9 | 36.6 |
| Year Lowest Occurred | 1973 | 1998 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1984 | 1973 | 1971 | 1998 |
| Mean Temperature (F) | 38.8 | 38.8 | 39.7 | 44.5 | 52.7 | 60.9 | 67.6 | 67.3 | 62.3 | 54.1 | 42.8 | 39.1 | 50.7 |
| Highest Mean Temperature (F) | 45.4 | 45.9 | 45.5 | 52.4 | 59.9 | 65.9 | 72.4 | 71.8 | 70.3 | 63.1 | 52.5 | 47.8 | 72.4 |
| Year Highest Occurred | 1984 | 1988 | 1986 | 1987 | 1992 | 1985 | 1988 | 1981 | 1974 | 1988 | 1976 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 32.5 | 34.8 | 33.8 | 35.7 | 42.3 | 55.1 | 62.0 | 60.0 | 52.6 | 46.8 | 34.7 | 30.5 | 30.5 |
| Year Lowest Occurred | 1973 | 1998 | 1973 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 32.9 | 32.7 | 33.0 | 36.5 | 44.3 | 52.0 | 58.3 | 57.8 | 53.1 | 45.9 | 36.2 | 32.6 | 42.9 |
| Highest Mean Min. Temperature (F) | 38.6 | 39.2 | 39.3 | 43.5 | 50.2 | 57.2 | 64.0 | 61.8 | 60.6 | 55.1 | 44.8 | 40.8 | 64.0 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1992 | 2000 | 1988 | 1988 | 1974 | 1988 | 1995 | 1980 | 1988 |
| Lowest Mean Min. Temperature (F) | 26.4 | 27.3 | 26.9 | 28.3 | 35.0 | 46.3 | 52.3 | 51.0 | 45.3 | 39.6 | 29.4 | 24.1 | 24.1 |
| Year Lowest Occurred | 1973 | 1990 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Precipitation (in.) | 11.72 | 11.57 | 10.50 | 4.98 | 2.93 | 0.88 | 0.37 | 0.43 | 1.44 | 3.86 | 8.97 | 8.71 | 66.36 |
| Highest Precipitation (in.) | 32.20 | 37.71 | 31.87 | 13.38 | 8.29 | 2.48 | 5.86 | 3.68 | 7.05 | 10.05 | 28.36 | 24.82 | 37.71 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1996 | 1995 | 1974 | 1976 | 1986 | 1982 | 1973 | 1981 | 1986 |
| Lowest Precipitation (in.) | 0.74 | 0.84 | 1.44 | 1.04 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.04 | 0.07 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1994 | 1977 | 1985 | 1990 | 2000 | 1998 | 1995 | 1990 | 1986 | 1989 | 1990 |
| Heating Degree Days (F) | 813. | 733. | 769. | 617. | 397. | 165. | 48. | 54. | 166. | 367. | 667. | 803. | 5599. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 15. | 41. | 129. | 125. | 84. | 28. | 0. | 0. | 423. |