| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.6 | 54.9 | 60.5 | 67.0 | 74.6 | 82.9 | 90.1 | 89.8 | 83.1 | 70.3 | 53.8 | 46.2 | 68.4 |
| Highest Mean Max. Temperature (F) | 52.9 | 60.9 | 66.6 | 75.5 | 80.9 | 90.2 | 95.5 | 97.8 | 90.6 | 82.4 | 58.1 | 52.0 | 71.8 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1969 | 1987 | 1985 | 1967 | 1974 | 1988 | 1987 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 42.6 | 48.9 | 54.1 | 57.7 | 66.3 | 75.3 | 81.3 | 82.8 | 73.2 | 63.6 | 48.2 | 40.8 | 65.4 |
| Year Lowest Occurred | 1962 | 1969 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1978 | 1975 | 1985 | 1985 | 1983 |
| Mean Temperature (F) | 40.2 | 44.7 | 48.3 | 52.8 | 59.1 | 66.3 | 71.7 | 71.3 | 64.9 | 55.8 | 45.9 | 39.9 | 55.1 |
| Highest Mean Temperature (F) | 45.2 | 50.4 | 53.0 | 58.3 | 63.7 | 70.8 | 75.2 | 76.5 | 69.2 | 62.2 | 48.6 | 44.8 | 56.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1969 | 1987 | 1985 | 1967 | 1990 | 1988 | 1970 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 34.1 | 39.9 | 45.2 | 47.0 | 54.3 | 61.7 | 67.4 | 67.8 | 60.1 | 52.2 | 39.5 | 34.1 | 53.5 |
| Year Lowest Occurred | 1963 | 1989 | 1975 | 1967 | 1977 | 1980 | 1983 | 1975 | 1978 | 1969 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 32.7 | 34.4 | 36.0 | 38.4 | 43.6 | 49.7 | 53.1 | 52.7 | 46.7 | 41.2 | 37.9 | 33.7 | 41.7 |
| Highest Mean Min. Temperature (F) | 38.6 | 40.6 | 41.8 | 43.1 | 46.8 | 53.6 | 55.3 | 56.6 | 49.8 | 46.5 | 41.9 | 39.8 | 44.4 |
| Year Highest Occurred | 1970 | 1963 | 1983 | 1989 | 1983 | 1969 | 1967 | 1977 | 1969 | 1979 | 1981 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 23.7 | 27.8 | 31.8 | 34.4 | 41.6 | 45.6 | 50.3 | 49.3 | 42.8 | 36.9 | 30.7 | 25.3 | 39.4 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1970 | 1964 | 1962 | 1962 | 1980 | 1965 | 1974 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 5.17 | 3.82 | 3.51 | 1.80 | 1.16 | 0.53 | 0.22 | 0.48 | 0.90 | 2.42 | 5.31 | 5.69 | 31.01 |
| Highest Precipitation (in.) | 12.03 | 10.68 | 8.82 | 5.32 | 4.08 | 2.72 | 1.08 | 3.33 | 4.19 | 8.86 | 15.15 | 16.06 | 49.78 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1963 | 1990 | 1982 | 1987 | 1976 | 1977 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.15 | 0.18 | 0.10 | 0.31 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.03 | 0.67 | 0.65 | 15.35 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1987 | 1982 | 1974 | 1988 | 1987 | 1987 | 1988 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 769. | 568. | 518. | 372. | 193. | 58. | 7. | 11. | 82. | 290. | 573. | 778. | 4219. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 10. | 97. | 215. | 206. | 79. | 0. | 0. | 0. | 613. |