| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.9 | 44.8 | 51.3 | 61.3 | 70.0 | 80.0 | 84.2 | 81.7 | 74.9 | 65.4 | 51.1 | 41.5 | 62.2 |
| Highest Mean Max. Temperature (F) | 51.1 | 52.0 | 61.4 | 68.6 | 76.4 | 84.5 | 87.0 | 84.4 | 80.5 | 71.3 | 56.6 | 51.1 | 65.0 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1987 | 1974 | 1990 | 1980 | 1969 | 1979 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 31.5 | 37.9 | 45.0 | 54.5 | 65.2 | 74.4 | 79.7 | 77.6 | 68.9 | 54.4 | 42.2 | 33.7 | 59.8 |
| Year Lowest Occurred | 1979 | 1966 | 1964 | 1965 | 1965 | 1965 | 1986 | 1968 | 1986 | 1984 | 1972 | 1961 | 1965 |
| Mean Temperature (F) | 22.2 | 27.9 | 34.8 | 42.7 | 50.4 | 58.6 | 65.4 | 63.9 | 56.2 | 46.2 | 34.4 | 24.9 | 44.0 |
| Highest Mean Temperature (F) | 31.2 | 33.7 | 40.1 | 47.9 | 55.8 | 63.3 | 68.3 | 67.9 | 60.9 | 50.4 | 38.3 | 34.1 | 46.1 |
| Year Highest Occurred | 1986 | 1970 | 1972 | 1987 | 1984 | 1988 | 1976 | 1986 | 1990 | 1963 | 1990 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 16.2 | 19.6 | 25.2 | 37.7 | 46.8 | 54.8 | 61.4 | 60.5 | 52.5 | 42.1 | 28.4 | 15.9 | 41.7 |
| Year Lowest Occurred | 1984 | 1966 | 1962 | 1973 | 1971 | 1983 | 1962 | 1975 | 1965 | 1970 | 1979 | 1961 | 1975 |
| Mean Min. Temperature (F) | 4.5 | 10.9 | 18.2 | 24.0 | 30.8 | 37.2 | 46.5 | 46.0 | 37.4 | 27.0 | 17.8 | 8.3 | 25.7 |
| Highest Mean Min. Temperature (F) | 15.8 | 18.6 | 25.0 | 31.0 | 35.3 | 44.6 | 51.0 | 52.4 | 43.7 | 38.1 | 25.3 | 17.1 | 28.4 |
| Year Highest Occurred | 1980 | 1986 | 1990 | 1990 | 1984 | 1988 | 1981 | 1986 | 1990 | 1972 | 1978 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | -5.1 | 1.3 | 3.7 | 20.2 | 24.8 | 32.7 | 39.3 | 38.4 | 31.9 | 19.8 | 11.7 | -2.0 | 22.4 |
| Year Lowest Occurred | 1984 | 1966 | 1962 | 1963 | 1962 | 1982 | 1979 | 1962 | 1975 | 1975 | 1989 | 1961 | 1962 |
| Mean Precipitation (in.) | 1.35 | 1.20 | 1.69 | 1.00 | 1.20 | 0.77 | 1.88 | 2.57 | 1.84 | 1.60 | 1.35 | 1.51 | 17.96 |
| Highest Precipitation (in.) | 4.49 | 3.00 | 3.83 | 2.78 | 4.38 | 2.54 | 4.14 | 5.68 | 4.49 | 6.44 | 4.08 | 5.29 | 26.12 |
| Year Highest Occurred | 1969 | 1980 | 1985 | 1985 | 1981 | 1986 | 1968 | 1968 | 1985 | 1972 | 1965 | 1966 | 1965 |
| Lowest Precipitation (in.) | 0.07 | 0.03 | 0.13 | 0.00 | 0.00 | 0.00 | 0.35 | 0.15 | 0.17 | 0.00 | 0.04 | 0.03 | 10.01 |
| Year Lowest Occurred | 1986 | 1977 | 1971 | 1989 | 1986 | 1980 | 1972 | 1978 | 1974 | 1964 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1327. | 1039. | 936. | 669. | 453. | 202. | 59. | 80. | 268. | 583. | 918. | 1243. | 7777. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 10. | 72. | 46. | 0. | 0. | 0. | 0. | 128. |