| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.2 | 50.7 | 55.7 | 63.6 | 71.3 | 80.2 | 81.9 | 79.3 | 74.9 | 67.3 | 56.5 | 48.6 | 64.8 |
| Highest Mean Max. Temperature (F) | 57.1 | 55.8 | 64.7 | 72.2 | 77.1 | 86.2 | 86.1 | 83.9 | 79.3 | 73.9 | 62.5 | 52.6 | 69.0 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1963 | 1961 | 1961 | 1962 | 1989 | 1964 | 1966 | 1989 | 1989 |
| Lowest Mean Max. Temperature (F) | 38.9 | 45.1 | 49.0 | 56.4 | 65.5 | 75.9 | 77.5 | 74.2 | 69.6 | 58.7 | 49.6 | 42.1 | 62.0 |
| Year Lowest Occurred | 1977 | 1964 | 1973 | 1975 | 1980 | 1972 | 1976 | 1968 | 1976 | 1984 | 1979 | 1967 | 1982 |
| Mean Temperature (F) | 31.4 | 34.6 | 39.2 | 45.7 | 53.2 | 61.6 | 66.7 | 64.4 | 58.8 | 49.3 | 39.3 | 32.4 | 48.1 |
| Highest Mean Temperature (F) | 37.8 | 39.4 | 44.3 | 51.2 | 59.0 | 65.9 | 69.6 | 67.9 | 63.0 | 54.3 | 45.1 | 37.4 | 50.1 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1963 | 1961 | 1966 | 1969 | 1979 | 1963 | 1966 | 1977 | 1966 |
| Lowest Mean Temperature (F) | 24.5 | 27.5 | 34.6 | 39.5 | 48.9 | 58.3 | 64.0 | 59.9 | 55.7 | 44.4 | 34.6 | 26.7 | 46.4 |
| Year Lowest Occurred | 1977 | 1964 | 1969 | 1970 | 1975 | 1982 | 1976 | 1968 | 1985 | 1984 | 1972 | 1990 | 1975 |
| Mean Min. Temperature (F) | 15.5 | 18.5 | 22.6 | 27.7 | 35.0 | 42.9 | 51.4 | 49.3 | 42.7 | 31.2 | 22.0 | 16.1 | 31.2 |
| Highest Mean Min. Temperature (F) | 23.7 | 24.2 | 26.7 | 32.2 | 40.8 | 48.5 | 55.0 | 54.6 | 47.9 | 37.6 | 28.9 | 22.8 | 34.1 |
| Year Highest Occurred | 1980 | 1968 | 1978 | 1963 | 1963 | 1981 | 1981 | 1969 | 1982 | 1972 | 1965 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 6.8 | 8.3 | 15.9 | 19.8 | 28.9 | 38.7 | 46.3 | 44.7 | 36.7 | 25.6 | 14.7 | 7.6 | 27.7 |
| Year Lowest Occurred | 1990 | 1974 | 1969 | 1974 | 1967 | 1989 | 1989 | 1989 | 1973 | 1990 | 1989 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.45 | 0.49 | 0.48 | 0.30 | 0.36 | 0.48 | 2.66 | 3.10 | 1.64 | 0.97 | 0.62 | 0.50 | 12.05 |
| Highest Precipitation (in.) | 2.23 | 1.95 | 1.41 | 1.56 | 1.77 | 1.92 | 5.46 | 5.32 | 4.02 | 3.20 | 1.95 | 1.42 | 17.62 |
| Year Highest Occurred | 1980 | 1975 | 1978 | 1984 | 1979 | 1972 | 1967 | 1988 | 1984 | 1972 | 1973 | 1965 | 1967 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.88 | 0.82 | 0.00 | 0.00 | 0.00 | 0.00 | 6.63 |
| Year Lowest Occurred | 1971 | 1984 | 1988 | 1989 | 1989 | 1989 | 1985 | 1973 | 1973 | 1973 | 1989 | 1976 | 1985 |
| Heating Degree Days (F) | 1042. | 851. | 800. | 579. | 366. | 124. | 25. | 60. | 192. | 487. | 771. | 1011. | 6308. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 22. | 78. | 42. | 6. | 0. | 0. | 0. | 148. |