| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.4 | 45.7 | 51.6 | 58.1 | 66.5 | 75.8 | 84.1 | 83.7 | 74.8 | 63.4 | 48.1 | 39.9 | 60.9 |
| Highest Mean Max. Temperature (F) | 45.5 | 52.7 | 56.9 | 66.6 | 72.7 | 83.4 | 89.7 | 92.0 | 83.4 | 72.6 | 53.2 | 45.8 | 63.5 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1977 | 1969 | 1974 | 1985 | 1967 | 1967 | 1988 | 1969 | 1962 | 1967 |
| Lowest Mean Max. Temperature (F) | 26.0 | 33.7 | 46.2 | 51.2 | 59.2 | 68.5 | 75.5 | 76.5 | 65.9 | 55.8 | 35.7 | 29.5 | 57.5 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1967 | 1962 | 1980 | 1983 | 1976 | 1985 | 1984 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 31.4 | 36.4 | 40.7 | 45.5 | 52.5 | 60.8 | 67.3 | 67.2 | 59.3 | 50.0 | 39.0 | 32.2 | 48.5 |
| Highest Mean Temperature (F) | 37.2 | 42.2 | 45.7 | 51.3 | 59.4 | 67.0 | 71.5 | 74.4 | 66.4 | 57.6 | 43.9 | 37.5 | 50.7 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1990 | 1969 | 1974 | 1968 | 1967 | 1967 | 1988 | 1976 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 15.5 | 25.1 | 37.0 | 40.2 | 47.8 | 54.8 | 61.0 | 61.2 | 52.8 | 44.8 | 26.9 | 21.6 | 45.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1967 | 1962 | 1980 | 1983 | 1980 | 1985 | 1982 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.3 | 27.1 | 29.8 | 32.8 | 38.5 | 45.8 | 50.5 | 50.6 | 43.8 | 36.5 | 29.9 | 24.5 | 36.1 |
| Highest Mean Min. Temperature (F) | 29.7 | 32.2 | 34.5 | 38.2 | 46.1 | 51.7 | 55.9 | 58.5 | 49.4 | 42.5 | 34.7 | 31.2 | 38.0 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1989 | 1969 | 1970 | 1971 | 1977 | 1967 | 1988 | 1976 | 1973 | 1973 |
| Lowest Mean Min. Temperature (F) | 4.9 | 16.5 | 25.9 | 28.0 | 34.4 | 41.1 | 44.5 | 41.8 | 39.6 | 31.7 | 18.0 | 13.6 | 32.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1964 | 1964 | 1980 | 1981 | 1980 | 1985 | 1982 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.61 | 1.10 | 1.16 | 0.95 | 1.11 | 1.02 | 0.40 | 0.71 | 0.81 | 0.93 | 1.87 | 1.71 | 13.38 |
| Highest Precipitation (in.) | 3.68 | 3.34 | 3.04 | 2.65 | 3.64 | 3.54 | 1.47 | 5.37 | 4.51 | 2.70 | 4.66 | 7.37 | 21.31 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1983 | 1977 | 1969 | 1978 | 1976 | 1982 | 1982 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.26 | 0.04 | 0.11 | 0.00 | 0.03 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.44 | 0.17 | 7.26 |
| Year Lowest Occurred | 1985 | 1964 | 1968 | 1977 | 1964 | 1974 | 1988 | 1988 | 1990 | 1988 | 1982 | 1976 | 1974 |
| Heating Degree Days (F) | 1042. | 801. | 753. | 585. | 388. | 176. | 68. | 79. | 214. | 465. | 780. | 1017. | 6368. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 50. | 139. | 147. | 43. | 0. | 0. | 0. | 379. |