| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.3 | 45.7 | 51.8 | 59.4 | 68.0 | 78.0 | 88.1 | 86.7 | 77.3 | 65.0 | 49.2 | 41.8 | 62.7 |
| Highest Mean Max. Temperature (F) | 48.2 | 56.8 | 60.5 | 67.9 | 80.8 | 84.3 | 93.3 | 91.5 | 83.2 | 76.6 | 59.3 | 50.6 | 93.3 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1987 | 1992 | 1974 | 1994 | 1986 | 1987 | 1988 | 1976 | 1976 | 1994 |
| Lowest Mean Max. Temperature (F) | 32.6 | 34.2 | 45.3 | 48.3 | 58.8 | 70.0 | 79.6 | 79.2 | 66.3 | 56.1 | 38.5 | 33.4 | 32.6 |
| Year Lowest Occurred | 1993 | 1993 | 1977 | 1975 | 1998 | 1980 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1993 |
| Mean Temperature (F) | 28.3 | 32.5 | 37.5 | 43.6 | 51.6 | 59.6 | 67.3 | 65.2 | 55.7 | 45.2 | 34.0 | 27.4 | 45.7 |
| Highest Mean Temperature (F) | 34.5 | 39.7 | 42.9 | 50.0 | 58.6 | 66.8 | 71.3 | 69.1 | 59.8 | 52.1 | 40.7 | 35.0 | 71.3 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1990 | 1992 | 1977 | 1994 | 1986 | 1990 | 1988 | 1995 | 1977 | 1994 |
| Lowest Mean Temperature (F) | 20.3 | 23.4 | 31.3 | 36.0 | 46.8 | 54.0 | 60.5 | 60.4 | 48.8 | 40.6 | 24.2 | 18.1 | 18.1 |
| Year Lowest Occurred | 1993 | 1993 | 1977 | 1975 | 1998 | 1980 | 1993 | 1976 | 1985 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 15.3 | 19.2 | 23.1 | 27.8 | 35.1 | 41.1 | 46.4 | 43.7 | 34.1 | 25.3 | 18.8 | 13.0 | 28.6 |
| Highest Mean Min. Temperature (F) | 23.9 | 26.0 | 29.6 | 34.1 | 40.5 | 49.5 | 49.9 | 47.3 | 38.5 | 28.9 | 26.0 | 23.4 | 49.9 |
| Year Highest Occurred | 1978 | 1986 | 1993 | 1990 | 1987 | 1977 | 1976 | 1990 | 1998 | 1979 | 1983 | 1981 | 1976 |
| Lowest Mean Min. Temperature (F) | 5.3 | 10.6 | 16.3 | 21.8 | 30.6 | 36.9 | 41.3 | 38.6 | 28.9 | 21.5 | 8.5 | 2.7 | 2.7 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1982 | 1982 | 1984 | 1993 | 1985 | 1985 | 1978 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.67 | 0.55 | 0.78 | 0.72 | 0.96 | 0.78 | 0.35 | 0.50 | 0.47 | 0.50 | 0.67 | 0.69 | 7.64 |
| Highest Precipitation (in.) | 1.89 | 2.25 | 2.09 | 2.49 | 4.15 | 2.36 | 1.16 | 2.14 | 1.94 | 1.47 | 2.33 | 1.91 | 4.15 |
| Year Highest Occurred | 1980 | 1986 | 1978 | 1978 | 1971 | 1993 | 1973 | 1979 | 1976 | 1992 | 1984 | 1977 | 1971 |
| Lowest Precipitation (in.) | 0.10 | 0.12 | 0.12 | 0.08 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1977 | 1972 | 1982 | 1992 | 1985 | 1999 | 1995 | 1987 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1137. | 912. | 855. | 641. | 420. | 196. | 51. | 69. | 290. | 617. | 930. | 1166. | 7284. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 33. | 120. | 75. | 12. | 0. | 0. | 0. | 242. |