| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.7 | 41.6 | 47.8 | 55.3 | 63.6 | 72.8 | 81.4 | 81.9 | 73.1 | 61.3 | 43.7 | 35.6 | 57.8 |
| Highest Mean Max. Temperature (F) | 41.7 | 49.5 | 58.9 | 65.6 | 70.3 | 80.1 | 88.9 | 89.0 | 82.3 | 74.6 | 51.0 | 41.4 | 60.7 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1987 | 1985 | 1987 | 1985 | 1981 | 1990 | 1988 | 1976 | 1975 | 1987 |
| Lowest Mean Max. Temperature (F) | 28.2 | 32.2 | 40.8 | 43.8 | 55.5 | 66.8 | 73.5 | 73.8 | 62.8 | 51.7 | 38.2 | 23.3 | 53.0 |
| Year Lowest Occurred | 1979 | 1984 | 1984 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1983 | 1984 |
| Mean Temperature (F) | 25.8 | 30.5 | 35.4 | 40.8 | 47.6 | 55.2 | 60.8 | 61.0 | 53.4 | 44.8 | 33.8 | 26.5 | 43.0 |
| Highest Mean Temperature (F) | 32.3 | 37.5 | 42.7 | 47.8 | 52.4 | 60.6 | 65.8 | 66.1 | 60.5 | 54.0 | 38.6 | 31.8 | 45.0 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1985 | 1987 | 1985 | 1967 | 1990 | 1988 | 1990 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 14.4 | 20.1 | 30.4 | 32.7 | 41.4 | 50.2 | 56.1 | 57.1 | 47.1 | 39.9 | 25.4 | 17.9 | 39.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1984 | 1986 | 1980 | 1986 | 1984 | 1985 | 1983 | 1984 |
| Mean Min. Temperature (F) | 15.9 | 19.5 | 23.0 | 26.2 | 31.6 | 37.7 | 40.2 | 40.0 | 33.7 | 28.2 | 23.8 | 17.5 | 28.1 |
| Highest Mean Min. Temperature (F) | 22.8 | 26.3 | 28.0 | 31.8 | 36.4 | 42.6 | 45.5 | 44.2 | 39.8 | 34.5 | 28.5 | 24.3 | 29.9 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1989 | 1987 | 1969 | 1975 | 1983 | 1963 | 1979 | 1990 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 0.6 | 7.9 | 16.4 | 19.6 | 27.2 | 33.3 | 32.2 | 34.8 | 29.9 | 22.7 | 12.6 | 7.6 | 24.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1984 | 1984 | 1980 | 1985 | 1976 | 1985 | 1978 | 1985 |
| Mean Precipitation (in.) | 2.13 | 1.61 | 1.43 | 1.13 | 1.28 | 1.29 | 0.68 | 0.85 | 0.92 | 1.26 | 2.47 | 2.38 | 17.43 |
| Highest Precipitation (in.) | 5.71 | 3.23 | 3.80 | 3.36 | 3.72 | 4.86 | 4.59 | 5.07 | 3.53 | 3.75 | 5.38 | 9.00 | 23.77 |
| Year Highest Occurred | 1970 | 1986 | 1972 | 1963 | 1962 | 1969 | 1983 | 1976 | 1982 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.43 | 0.24 | 0.25 | 0.00 | 0.22 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.42 | 0.16 | 10.01 |
| Year Lowest Occurred | 1986 | 1967 | 1968 | 1985 | 1964 | 1973 | 1988 | 1987 | 1987 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1215. | 966. | 918. | 726. | 539. | 300. | 156. | 158. | 361. | 626. | 936. | 1194. | 8095. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 26. | 34. | 13. | 0. | 0. | 0. | 79. |