| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.8 | 47.2 | 56.3 | 64.2 | 72.4 | 80.5 | 86.8 | 86.0 | 76.9 | 64.4 | 48.9 | 39.0 | 63.5 |
| Highest Mean Max. Temperature (F) | 49.2 | 55.3 | 60.3 | 70.0 | 76.8 | 86.1 | 93.4 | 92.9 | 84.8 | 71.6 | 54.5 | 45.9 | 66.9 |
| Year Highest Occurred | 1967 | 1967 | 1981 | 1987 | 1987 | 1986 | 1985 | 1986 | 1967 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 21.7 | 33.9 | 50.7 | 57.8 | 66.2 | 74.2 | 82.1 | 80.2 | 70.7 | 60.6 | 35.2 | 26.5 | 60.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1976 | 1985 | 1968 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 32.1 | 38.1 | 44.5 | 50.7 | 57.8 | 65.2 | 69.9 | 69.3 | 61.5 | 50.8 | 40.2 | 32.2 | 51.0 |
| Highest Mean Temperature (F) | 41.4 | 44.3 | 48.7 | 55.8 | 61.5 | 69.7 | 75.3 | 74.8 | 67.7 | 57.8 | 44.7 | 39.2 | 53.7 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1987 | 1987 | 1986 | 1985 | 1986 | 1967 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 15.4 | 26.5 | 39.7 | 45.5 | 54.3 | 59.7 | 66.3 | 64.9 | 55.7 | 47.1 | 27.7 | 22.7 | 48.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1986 | 1975 | 1971 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 25.3 | 29.0 | 32.7 | 37.1 | 43.3 | 49.8 | 52.9 | 52.4 | 46.0 | 37.3 | 31.5 | 25.4 | 38.6 |
| Highest Mean Min. Temperature (F) | 33.6 | 35.5 | 38.0 | 41.7 | 46.2 | 53.8 | 58.1 | 56.9 | 51.7 | 43.9 | 37.1 | 32.5 | 40.7 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1972 | 1969 | 1990 | 1977 | 1963 | 1988 | 1965 | 1966 | 1986 |
| Lowest Mean Min. Temperature (F) | 9.1 | 19.0 | 28.4 | 32.1 | 40.6 | 45.2 | 49.6 | 47.4 | 39.5 | 33.3 | 20.1 | 17.7 | 36.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1974 | 1971 | 1969 | 1969 | 1971 | 1971 | 1985 | 1983 | 1975 |
| Mean Precipitation (in.) | 0.90 | 0.63 | 0.61 | 0.62 | 0.68 | 0.52 | 0.22 | 0.39 | 0.45 | 0.57 | 1.02 | 1.22 | 7.83 |
| Highest Precipitation (in.) | 2.94 | 3.08 | 1.78 | 1.55 | 2.29 | 1.54 | 1.16 | 1.53 | 1.81 | 2.05 | 2.74 | 3.46 | 13.45 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1963 | 1972 | 1964 | 1966 | 1977 | 1986 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.11 | 0.00 | 0.05 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 3.48 |
| Year Lowest Occurred | 1984 | 1988 | 1968 | 1977 | 1964 | 1979 | 1985 | 1988 | 1990 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1020. | 753. | 636. | 429. | 228. | 82. | 15. | 32. | 155. | 440. | 744. | 1017. | 5551. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 88. | 167. | 166. | 50. | 0. | 0. | 0. | 471. |