| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.3 | 45.7 | 54.1 | 63.9 | 73.8 | 84.6 | 90.2 | 87.0 | 78.7 | 67.4 | 51.8 | 40.1 | 64.6 |
| Highest Mean Max. Temperature (F) | 49.0 | 51.4 | 62.9 | 73.5 | 79.5 | 91.9 | 95.0 | 91.1 | 85.7 | 75.1 | 56.8 | 48.3 | 68.5 |
| Year Highest Occurred | 1981 | 1981 | 1989 | 1989 | 1984 | 1990 | 1989 | 1986 | 1990 | 1979 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 32.2 | 38.3 | 46.8 | 57.7 | 69.2 | 78.1 | 86.5 | 82.3 | 73.6 | 56.7 | 43.8 | 33.3 | 62.1 |
| Year Lowest Occurred | 1963 | 1966 | 1964 | 1973 | 1978 | 1965 | 1986 | 1968 | 1983 | 1984 | 1972 | 1961 | 1964 |
| Mean Temperature (F) | 27.4 | 33.8 | 41.1 | 49.4 | 58.7 | 68.7 | 75.1 | 72.7 | 64.6 | 53.3 | 40.2 | 29.9 | 51.2 |
| Highest Mean Temperature (F) | 35.9 | 38.5 | 47.5 | 56.8 | 63.1 | 73.1 | 78.1 | 75.7 | 70.9 | 58.6 | 44.2 | 37.7 | 54.2 |
| Year Highest Occurred | 1981 | 1986 | 1989 | 1989 | 1984 | 1990 | 1989 | 1986 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 20.5 | 26.7 | 35.2 | 43.6 | 54.4 | 64.0 | 72.1 | 68.9 | 60.4 | 46.9 | 34.3 | 22.9 | 48.6 |
| Year Lowest Occurred | 1963 | 1966 | 1964 | 1970 | 1975 | 1965 | 1986 | 1968 | 1970 | 1970 | 1979 | 1978 | 1975 |
| Mean Min. Temperature (F) | 16.5 | 21.9 | 28.0 | 34.8 | 43.5 | 52.9 | 60.1 | 58.3 | 50.4 | 39.2 | 28.6 | 19.6 | 37.8 |
| Highest Mean Min. Temperature (F) | 26.2 | 27.2 | 32.8 | 40.0 | 47.5 | 57.0 | 63.5 | 61.7 | 56.0 | 45.1 | 33.3 | 27.0 | 39.9 |
| Year Highest Occurred | 1980 | 1976 | 1978 | 1989 | 1966 | 1977 | 1966 | 1983 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 8.8 | 13.9 | 22.2 | 29.3 | 38.8 | 48.0 | 56.5 | 54.3 | 46.9 | 33.5 | 23.0 | 12.0 | 35.0 |
| Year Lowest Occurred | 1963 | 1974 | 1962 | 1970 | 1983 | 1975 | 1987 | 1978 | 1970 | 1976 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.01 | 0.96 | 1.29 | 0.95 | 0.82 | 0.53 | 1.16 | 1.72 | 1.18 | 1.35 | 1.13 | 1.19 | 13.29 |
| Highest Precipitation (in.) | 3.92 | 3.45 | 4.40 | 3.57 | 2.78 | 2.30 | 3.54 | 4.21 | 2.89 | 5.15 | 2.96 | 3.35 | 23.67 |
| Year Highest Occurred | 1980 | 1987 | 1983 | 1985 | 1976 | 1967 | 1986 | 1988 | 1985 | 1972 | 1986 | 1984 | 1986 |
| Lowest Precipitation (in.) | 0.05 | 0.03 | 0.07 | 0.00 | 0.00 | 0.00 | 0.05 | 0.11 | 0.01 | 0.00 | 0.00 | 0.00 | 5.85 |
| Year Lowest Occurred | 1981 | 1972 | 1976 | 1989 | 1972 | 1982 | 1978 | 1962 | 1987 | 1975 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1166. | 874. | 741. | 468. | 207. | 28. | 0. | 0. | 81. | 369. | 744. | 1088. | 5766. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 12. | 139. | 313. | 239. | 69. | 6. | 0. | 0. | 778. |