| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.8 | 54.6 | 63.7 | 72.8 | 79.7 | 85.9 | 88.7 | 87.6 | 82.6 | 72.9 | 63.9 | 54.3 | 71.5 |
| Highest Mean Max. Temperature (F) | 61.7 | 65.7 | 69.1 | 78.3 | 85.9 | 91.4 | 94.4 | 93.6 | 87.4 | 77.9 | 69.5 | 62.9 | 74.5 |
| Year Highest Occurred | 1974 | 1976 | 1974 | 1985 | 1962 | 1981 | 1986 | 1983 | 1970 | 1984 | 1985 | 1971 | 1990 |
| Lowest Mean Max. Temperature (F) | 39.5 | 45.0 | 58.0 | 67.0 | 75.5 | 82.4 | 85.3 | 84.5 | 78.8 | 67.5 | 57.7 | 45.4 | 69.8 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1961 | 1972 | 1965 | 1984 | 1989 | 1967 | 1988 | 1976 | 1963 | 1969 |
| Mean Temperature (F) | 40.5 | 43.5 | 51.9 | 60.1 | 67.9 | 74.8 | 78.1 | 77.4 | 71.8 | 61.1 | 52.5 | 43.9 | 60.3 |
| Highest Mean Temperature (F) | 51.3 | 51.6 | 56.5 | 64.1 | 73.7 | 79.2 | 82.8 | 80.7 | 76.0 | 68.2 | 60.3 | 53.3 | 62.9 |
| Year Highest Occurred | 1974 | 1990 | 1974 | 1985 | 1962 | 1981 | 1986 | 1980 | 1970 | 1984 | 1985 | 1971 | 1990 |
| Lowest Mean Temperature (F) | 30.0 | 34.3 | 46.4 | 55.3 | 64.9 | 71.2 | 75.9 | 74.4 | 68.1 | 55.7 | 45.4 | 35.8 | 58.5 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1983 | 1976 | 1972 | 1979 | 1981 | 1981 | 1988 | 1976 | 1989 | 1978 |
| Mean Min. Temperature (F) | 30.1 | 32.3 | 40.2 | 47.5 | 56.1 | 63.6 | 67.5 | 67.1 | 60.9 | 49.3 | 41.1 | 33.5 | 49.1 |
| Highest Mean Min. Temperature (F) | 40.8 | 39.9 | 44.9 | 50.6 | 61.9 | 67.2 | 71.2 | 70.8 | 64.8 | 58.4 | 51.0 | 43.7 | 51.5 |
| Year Highest Occurred | 1974 | 1990 | 1961 | 1964 | 1965 | 1986 | 1986 | 1988 | 1980 | 1984 | 1985 | 1971 | 1986 |
| Lowest Mean Min. Temperature (F) | 20.4 | 23.6 | 34.7 | 43.3 | 51.8 | 59.4 | 64.8 | 63.0 | 54.8 | 42.6 | 33.1 | 26.0 | 46.3 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1983 | 1976 | 1972 | 1978 | 1981 | 1981 | 1974 | 1976 | 1989 | 1981 |
| Mean Precipitation (in.) | 3.76 | 3.86 | 4.07 | 2.92 | 4.44 | 4.03 | 4.78 | 4.38 | 3.36 | 3.17 | 3.32 | 3.40 | 45.49 |
| Highest Precipitation (in.) | 7.45 | 7.12 | 8.15 | 7.55 | 8.99 | 8.23 | 10.71 | 11.99 | 8.87 | 8.27 | 8.24 | 7.53 | 60.98 |
| Year Highest Occurred | 1987 | 1989 | 1983 | 1978 | 1984 | 1989 | 1975 | 1986 | 1979 | 1971 | 1963 | 1983 | 1989 |
| Lowest Precipitation (in.) | 1.02 | 0.82 | 1.53 | 0.16 | 1.30 | 0.62 | 0.85 | 0.51 | 0.28 | 0.35 | 0.69 | 0.37 | 30.96 |
| Year Lowest Occurred | 1981 | 1968 | 1988 | 1976 | 1987 | 1977 | 1966 | 1975 | 1990 | 1973 | 1973 | 1965 | 1981 |
| Heating Degree Days (F) | 760. | 602. | 410. | 166. | 36. | 0. | 0. | 0. | 6. | 173. | 375. | 654. | 3182. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 19. | 126. | 294. | 406. | 384. | 210. | 52. | 0. | 0. | 1491. |