| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.4 | 49.0 | 53.5 | 57.5 | 63.1 | 68.1 | 72.5 | 73.7 | 70.4 | 60.9 | 49.9 | 43.6 | 58.8 |
| Highest Mean Max. Temperature (F) | 50.9 | 55.0 | 59.6 | 63.9 | 67.8 | 74.3 | 82.0 | 80.1 | 77.5 | 70.2 | 55.3 | 47.7 | 62.9 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1989 | 1987 | 1987 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 35.3 | 42.4 | 48.4 | 53.3 | 56.5 | 62.1 | 68.1 | 68.2 | 66.2 | 56.2 | 44.0 | 38.7 | 56.3 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1971 | 1963 | 1975 | 1978 | 1975 | 1985 | 1983 | 1964 |
| Mean Temperature (F) | 38.1 | 42.0 | 45.2 | 48.5 | 53.7 | 58.8 | 62.7 | 63.7 | 60.1 | 52.2 | 43.9 | 38.7 | 50.6 |
| Highest Mean Temperature (F) | 42.6 | 46.5 | 49.4 | 52.4 | 57.4 | 62.0 | 67.1 | 68.2 | 64.2 | 55.6 | 47.7 | 43.0 | 52.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1974 | 1988 | 1987 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 30.5 | 34.2 | 41.2 | 44.7 | 49.3 | 54.5 | 60.2 | 60.6 | 57.2 | 49.5 | 36.3 | 33.0 | 48.9 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1973 | 1983 | 1984 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 32.7 | 35.0 | 36.9 | 39.5 | 44.3 | 49.5 | 52.8 | 53.7 | 49.7 | 43.5 | 37.9 | 33.8 | 42.4 |
| Highest Mean Min. Temperature (F) | 37.0 | 39.1 | 40.4 | 42.4 | 47.0 | 54.2 | 55.3 | 56.8 | 53.6 | 48.0 | 41.3 | 38.9 | 43.9 |
| Year Highest Occurred | 1983 | 1978 | 1983 | 1990 | 1987 | 1969 | 1961 | 1977 | 1979 | 1979 | 1965 | 1966 | 1981 |
| Lowest Mean Min. Temperature (F) | 25.5 | 26.0 | 33.9 | 35.6 | 42.0 | 46.8 | 50.4 | 49.9 | 45.6 | 38.8 | 28.5 | 24.9 | 38.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1962 | 1971 | 1984 | 1985 | 1989 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 9.08 | 6.62 | 6.30 | 3.68 | 2.46 | 1.71 | 0.78 | 1.21 | 2.43 | 4.41 | 8.64 | 9.27 | 56.59 |
| Highest Precipitation (in.) | 17.64 | 15.02 | 11.13 | 7.07 | 5.47 | 3.83 | 3.02 | 4.03 | 7.43 | 9.54 | 18.39 | 17.94 | 72.42 |
| Year Highest Occurred | 1964 | 1961 | 1961 | 1982 | 1984 | 1984 | 1983 | 1977 | 1978 | 1967 | 1973 | 1970 | 1971 |
| Lowest Precipitation (in.) | 0.38 | 2.08 | 0.52 | 1.26 | 0.44 | 0.39 | 0.00 | 0.04 | 0.01 | 0.24 | 0.92 | 2.55 | 37.68 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1967 | 1987 | 1984 | 1986 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 834. | 644. | 614. | 495. | 350. | 193. | 95. | 85. | 158. | 397. | 633. | 815. | 5313. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 24. | 45. | 11. | 0. | 0. | 0. | 87. |