| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.9 | 54.5 | 60.8 | 67.7 | 77.2 | 86.1 | 94.3 | 93.5 | 86.5 | 73.2 | 56.0 | 47.4 | 70.4 |
| Highest Mean Max. Temperature (F) | 55.2 | 63.4 | 68.6 | 78.1 | 84.1 | 91.0 | 98.9 | 101.2 | 96.3 | 82.6 | 64.5 | 53.4 | 73.3 |
| Year Highest Occurred | 1980 | 1988 | 1986 | 1987 | 1973 | 1977 | 1978 | 1967 | 1974 | 1988 | 1976 | 1973 | 1987 |
| Lowest Mean Max. Temperature (F) | 40.4 | 44.6 | 53.5 | 54.2 | 65.0 | 80.5 | 83.8 | 82.9 | 77.4 | 65.9 | 49.4 | 41.9 | 67.9 |
| Year Lowest Occurred | 1969 | 1979 | 1971 | 1979 | 1977 | 1988 | 1983 | 1976 | 1986 | 1984 | 1985 | 1970 | 1983 |
| Mean Temperature (F) | 39.2 | 43.6 | 47.5 | 51.9 | 59.3 | 67.1 | 73.0 | 72.3 | 65.9 | 56.3 | 46.2 | 39.7 | 55.2 |
| Highest Mean Temperature (F) | 44.7 | 50.4 | 53.2 | 58.1 | 64.6 | 71.9 | 76.6 | 77.6 | 69.6 | 61.2 | 51.6 | 45.4 | 56.7 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1989 | 1973 | 1977 | 1967 | 1967 | 1967 | 1987 | 1976 | 1973 | 1981 |
| Lowest Mean Temperature (F) | 34.9 | 37.9 | 43.5 | 44.5 | 52.2 | 59.4 | 66.9 | 67.5 | 60.9 | 52.6 | 39.6 | 33.5 | 53.1 |
| Year Lowest Occurred | 1969 | 1979 | 1971 | 1975 | 1988 | 1988 | 1983 | 1976 | 1985 | 1969 | 1985 | 1990 | 1988 |
| Mean Min. Temperature (F) | 30.4 | 32.6 | 34.0 | 35.9 | 41.3 | 48.0 | 51.7 | 51.2 | 45.3 | 39.4 | 36.3 | 31.9 | 39.8 |
| Highest Mean Min. Temperature (F) | 36.4 | 41.9 | 39.3 | 41.8 | 47.4 | 53.0 | 54.4 | 57.0 | 49.8 | 48.5 | 41.5 | 38.0 | 42.1 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1989 | 1963 | 1969 | 1967 | 1977 | 1976 | 1977 | 1965 | 1977 | 1963 |
| Lowest Mean Min. Temperature (F) | 24.0 | 28.0 | 27.6 | 26.3 | 32.4 | 38.2 | 42.4 | 39.9 | 37.5 | 28.6 | 29.7 | 23.9 | 33.5 |
| Year Lowest Occurred | 1963 | 1989 | 1988 | 1988 | 1988 | 1988 | 1988 | 1988 | 1988 | 1988 | 1985 | 1978 | 1988 |
| Mean Precipitation (in.) | 9.43 | 7.39 | 6.81 | 2.63 | 1.38 | 0.55 | 0.22 | 0.65 | 1.20 | 3.57 | 8.79 | 10.03 | 52.65 |
| Highest Precipitation (in.) | 23.95 | 19.85 | 15.65 | 9.36 | 7.19 | 2.56 | 1.21 | 4.33 | 6.01 | 11.48 | 24.05 | 30.39 | 84.41 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1988 | 1965 | 1983 | 1977 | 1962 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.52 | 0.18 | 0.31 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.40 | 0.48 | 24.38 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1964 | 1982 | 1987 | 1988 | 1988 | 1988 | 1978 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 800. | 599. | 543. | 403. | 204. | 58. | 9. | 9. | 60. | 275. | 564. | 784. | 4308. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 10. | 28. | 121. | 257. | 236. | 87. | 0. | 0. | 0. | 739. |