| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.2 | 50.4 | 55.0 | 59.5 | 65.8 | 71.2 | 76.4 | 77.4 | 72.5 | 62.6 | 51.8 | 45.3 | 61.1 |
| Highest Mean Max. Temperature (F) | 51.1 | 56.7 | 60.6 | 65.0 | 69.4 | 75.8 | 84.0 | 85.2 | 79.1 | 70.2 | 54.8 | 49.6 | 63.3 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1983 | 1986 | 1985 | 1967 | 1974 | 1987 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 35.9 | 43.1 | 49.4 | 55.2 | 59.6 | 65.5 | 71.8 | 71.6 | 68.6 | 58.8 | 43.4 | 39.8 | 58.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1970 | 1962 | 1971 | 1963 | 1976 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.0 | 42.4 | 45.5 | 49.0 | 54.5 | 59.8 | 63.8 | 64.5 | 60.5 | 52.7 | 44.9 | 39.7 | 51.4 |
| Highest Mean Temperature (F) | 43.4 | 47.6 | 50.1 | 53.5 | 58.0 | 63.6 | 67.7 | 68.9 | 64.2 | 56.5 | 48.2 | 44.1 | 53.3 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1983 | 1969 | 1985 | 1967 | 1974 | 1988 | 1983 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 30.9 | 35.2 | 40.8 | 45.1 | 50.7 | 56.1 | 60.8 | 61.0 | 56.7 | 49.4 | 36.6 | 34.0 | 49.4 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1973 | 1970 | 1970 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 32.7 | 34.4 | 36.0 | 38.5 | 43.1 | 48.3 | 51.0 | 51.5 | 48.4 | 42.7 | 38.0 | 34.0 | 41.6 |
| Highest Mean Min. Temperature (F) | 37.4 | 40.4 | 41.1 | 43.3 | 46.8 | 54.4 | 53.4 | 54.5 | 53.5 | 49.5 | 42.8 | 38.6 | 43.3 |
| Year Highest Occurred | 1983 | 1961 | 1983 | 1990 | 1987 | 1969 | 1990 | 1977 | 1990 | 1988 | 1983 | 1979 | 1983 |
| Lowest Mean Min. Temperature (F) | 24.9 | 27.3 | 31.9 | 34.4 | 40.0 | 44.3 | 48.5 | 47.3 | 43.9 | 38.5 | 29.8 | 26.7 | 39.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1964 | 1965 | 1977 | 1969 | 1961 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.71 | 4.94 | 4.50 | 3.41 | 2.50 | 2.10 | 1.01 | 1.47 | 2.37 | 3.80 | 6.61 | 7.12 | 46.54 |
| Highest Precipitation (in.) | 11.87 | 11.08 | 7.70 | 5.72 | 6.18 | 4.78 | 3.23 | 4.78 | 4.98 | 7.90 | 11.89 | 12.47 | 57.71 |
| Year Highest Occurred | 1990 | 1961 | 1989 | 1961 | 1984 | 1984 | 1983 | 1968 | 1971 | 1967 | 1983 | 1977 | 1983 |
| Lowest Precipitation (in.) | 0.28 | 1.29 | 0.54 | 1.22 | 1.01 | 0.58 | 0.01 | 0.03 | 0.06 | 0.27 | 1.10 | 2.22 | 34.48 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1980 | 1965 | 1973 | 1970 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 806. | 633. | 605. | 480. | 326. | 167. | 72. | 82. | 155. | 381. | 603. | 784. | 5094. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 11. | 35. | 66. | 20. | 0. | 0. | 0. | 132. |