| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.4 | 49.9 | 53.8 | 58.9 | 66.0 | 71.5 | 76.9 | 77.8 | 71.2 | 60.8 | 50.4 | 44.7 | 60.6 |
| Highest Mean Max. Temperature (F) | 53.9 | 57.4 | 58.6 | 64.5 | 70.8 | 76.5 | 85.0 | 87.2 | 79.2 | 68.1 | 54.9 | 49.2 | 63.3 |
| Year Highest Occurred | 1961 | 1963 | 1979 | 1989 | 1969 | 1982 | 1985 | 1967 | 1974 | 1987 | 1987 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.4 | 43.7 | 49.9 | 54.6 | 58.8 | 65.8 | 71.2 | 71.0 | 64.3 | 56.2 | 37.7 | 38.6 | 58.2 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1962 | 1971 | 1986 | 1976 | 1978 | 1984 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 38.9 | 42.2 | 44.7 | 48.5 | 54.4 | 59.6 | 63.5 | 64.1 | 59.1 | 51.1 | 43.6 | 38.7 | 50.7 |
| Highest Mean Temperature (F) | 45.5 | 48.7 | 48.6 | 52.5 | 57.5 | 63.9 | 68.2 | 69.4 | 63.1 | 54.6 | 48.5 | 43.3 | 52.8 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1989 | 1969 | 1969 | 1985 | 1967 | 1974 | 1965 | 1987 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 31.6 | 35.5 | 41.3 | 44.8 | 50.7 | 55.7 | 60.8 | 60.5 | 55.4 | 47.4 | 32.3 | 32.2 | 48.2 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1971 | 1986 | 1973 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 32.4 | 34.5 | 35.5 | 38.1 | 42.8 | 47.8 | 50.1 | 50.4 | 47.0 | 41.4 | 36.7 | 32.6 | 40.8 |
| Highest Mean Min. Temperature (F) | 38.0 | 40.0 | 39.0 | 41.9 | 45.3 | 53.0 | 54.0 | 54.2 | 51.0 | 45.9 | 42.0 | 37.6 | 42.7 |
| Year Highest Occurred | 1986 | 1963 | 1987 | 1990 | 1986 | 1969 | 1990 | 1990 | 1963 | 1988 | 1987 | 1966 | 1990 |
| Lowest Mean Min. Temperature (F) | 24.8 | 27.2 | 31.8 | 34.4 | 39.5 | 45.0 | 48.0 | 46.3 | 43.9 | 38.6 | 26.8 | 25.6 | 38.1 |
| Year Lowest Occurred | 1980 | 1989 | 1985 | 1975 | 1965 | 1979 | 1980 | 1973 | 1983 | 1984 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.34 | 4.79 | 4.47 | 3.99 | 3.23 | 2.82 | 1.46 | 1.92 | 2.77 | 3.93 | 6.62 | 6.20 | 48.54 |
| Highest Precipitation (in.) | 10.77 | 11.32 | 7.46 | 6.57 | 6.46 | 5.52 | 5.24 | 6.25 | 6.77 | 8.35 | 11.85 | 10.19 | 61.54 |
| Year Highest Occurred | 1964 | 1961 | 1988 | 1988 | 1984 | 1964 | 1983 | 1968 | 1978 | 1967 | 1990 | 1975 | 1990 |
| Lowest Precipitation (in.) | 0.85 | 1.72 | 0.87 | 1.70 | 0.94 | 0.50 | 0.00 | 0.01 | 0.16 | 1.03 | 1.96 | 1.19 | 35.45 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1983 | 1982 | 1987 | 1984 | 1967 | 1990 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 809. | 638. | 629. | 495. | 329. | 177. | 82. | 92. | 191. | 431. | 642. | 815. | 5330. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 15. | 36. | 64. | 14. | 0. | 0. | 0. | 129. |