| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.9 | 53.2 | 56.8 | 61.4 | 67.6 | 74.3 | 81.3 | 81.8 | 76.3 | 65.6 | 53.6 | 47.7 | 64.0 |
| Highest Mean Max. Temperature (F) | 52.6 | 59.4 | 63.1 | 68.3 | 71.7 | 80.0 | 87.4 | 90.7 | 84.3 | 73.2 | 57.4 | 53.2 | 66.4 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1987 | 1973 | 1987 | 1985 | 1967 | 1974 | 1987 | 1980 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 39.9 | 46.5 | 52.3 | 56.0 | 62.1 | 68.6 | 74.5 | 76.5 | 71.1 | 61.5 | 46.3 | 42.6 | 61.9 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1963 | 1962 | 1980 | 1963 | 1968 | 1977 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 40.3 | 43.7 | 46.2 | 49.1 | 54.2 | 60.0 | 64.4 | 64.8 | 60.1 | 53.0 | 45.5 | 40.5 | 51.8 |
| Highest Mean Temperature (F) | 44.2 | 50.3 | 50.0 | 53.8 | 58.0 | 63.1 | 67.6 | 68.8 | 64.9 | 56.6 | 48.5 | 44.2 | 53.1 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1989 | 1969 | 1961 | 1990 | 1977 | 1963 | 1988 | 1962 | 1979 | 1990 |
| Lowest Mean Temperature (F) | 32.8 | 35.8 | 42.7 | 45.2 | 51.6 | 55.8 | 61.0 | 61.3 | 56.4 | 50.3 | 37.6 | 34.1 | 49.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1970 | 1965 | 1976 | 1963 | 1980 | 1985 | 1971 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 32.6 | 34.2 | 35.4 | 36.9 | 40.8 | 45.7 | 47.5 | 47.7 | 43.8 | 40.4 | 37.4 | 33.4 | 39.7 |
| Highest Mean Min. Temperature (F) | 37.9 | 41.3 | 39.2 | 41.0 | 44.2 | 51.7 | 51.3 | 56.2 | 50.2 | 44.2 | 40.7 | 38.4 | 41.3 |
| Year Highest Occurred | 1990 | 1963 | 1983 | 1990 | 1969 | 1969 | 1982 | 1983 | 1963 | 1962 | 1983 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 25.6 | 25.0 | 31.2 | 32.1 | 37.4 | 40.7 | 44.1 | 42.1 | 39.9 | 33.5 | 28.8 | 23.9 | 36.3 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1982 | 1966 | 1976 | 1986 | 1988 | 1970 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.53 | 5.09 | 5.24 | 3.59 | 2.43 | 1.39 | 0.52 | 1.00 | 1.65 | 3.45 | 7.46 | 7.20 | 45.55 |
| Highest Precipitation (in.) | 13.59 | 13.67 | 9.49 | 6.74 | 4.50 | 3.21 | 3.44 | 4.86 | 4.33 | 6.38 | 16.89 | 17.81 | 58.97 |
| Year Highest Occurred | 1964 | 1961 | 1961 | 1979 | 1988 | 1969 | 1987 | 1968 | 1986 | 1990 | 1973 | 1964 | 1961 |
| Lowest Precipitation (in.) | 0.82 | 1.06 | 1.00 | 1.34 | 0.55 | 0.17 | 0.00 | 0.00 | 0.03 | 0.09 | 1.76 | 1.37 | 29.55 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1966 | 1982 | 1987 | 1973 | 1988 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 766. | 596. | 583. | 477. | 335. | 160. | 65. | 70. | 165. | 372. | 585. | 760. | 4934. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 10. | 47. | 64. | 18. | 0. | 0. | 0. | 139. |