| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.3 | 47.1 | 56.2 | 64.0 | 72.7 | 81.1 | 88.7 | 88.1 | 78.1 | 65.3 | 50.7 | 41.4 | 64.5 |
| Highest Mean Max. Temperature (F) | 50.5 | 53.0 | 59.8 | 69.4 | 76.9 | 87.6 | 95.4 | 95.6 | 84.6 | 71.3 | 55.5 | 48.5 | 67.8 |
| Year Highest Occurred | 1967 | 1967 | 1986 | 1987 | 1983 | 1961 | 1985 | 1967 | 1967 | 1988 | 1983 | 1974 | 1967 |
| Lowest Mean Max. Temperature (F) | 24.5 | 33.9 | 51.8 | 58.2 | 66.8 | 75.5 | 83.5 | 81.9 | 72.4 | 62.5 | 37.9 | 27.5 | 61.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1981 | 1963 | 1976 | 1985 | 1982 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 34.4 | 39.1 | 45.7 | 52.2 | 60.2 | 67.9 | 74.4 | 74.0 | 64.8 | 53.8 | 43.2 | 35.6 | 53.8 |
| Highest Mean Temperature (F) | 43.9 | 45.1 | 49.9 | 56.4 | 63.5 | 72.6 | 79.6 | 80.0 | 70.7 | 59.6 | 48.0 | 41.6 | 56.6 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1987 | 1969 | 1961 | 1985 | 1967 | 1990 | 1988 | 1983 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 19.0 | 26.4 | 42.1 | 47.2 | 55.9 | 63.5 | 70.2 | 69.7 | 60.2 | 51.5 | 31.2 | 23.6 | 51.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1962 | 1981 | 1963 | 1964 | 1970 | 1981 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 28.4 | 31.1 | 35.1 | 40.3 | 47.6 | 54.6 | 60.1 | 59.8 | 51.5 | 42.2 | 35.8 | 29.7 | 43.0 |
| Highest Mean Min. Temperature (F) | 37.2 | 37.4 | 40.1 | 44.5 | 50.9 | 58.8 | 65.0 | 65.5 | 57.0 | 47.8 | 40.4 | 36.0 | 45.3 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1990 | 1987 | 1969 | 1961 | 1961 | 1990 | 1988 | 1983 | 1973 | 1967 |
| Lowest Mean Min. Temperature (F) | 13.5 | 18.8 | 31.7 | 35.4 | 44.5 | 50.4 | 56.7 | 55.2 | 47.0 | 39.6 | 24.5 | 19.6 | 40.5 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1982 | 1976 | 1981 | 1962 | 1970 | 1970 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.03 | 0.71 | 0.70 | 0.57 | 0.58 | 0.39 | 0.20 | 0.37 | 0.37 | 0.50 | 1.11 | 1.22 | 7.75 |
| Highest Precipitation (in.) | 2.82 | 1.80 | 2.06 | 1.89 | 2.10 | 1.22 | 0.94 | 1.62 | 1.79 | 1.93 | 3.23 | 3.79 | 13.58 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1988 | 1962 | 1984 | 1978 | 1978 | 1982 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.03 | 0.00 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.25 | 2.95 |
| Year Lowest Occurred | 1977 | 1988 | 1965 | 1966 | 1966 | 1986 | 1984 | 1988 | 1990 | 1988 | 1976 | 1967 | 1967 |
| Heating Degree Days (F) | 949. | 725. | 598. | 384. | 164. | 42. | 5. | 11. | 89. | 347. | 654. | 911. | 4879. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 15. | 129. | 297. | 290. | 83. | 0. | 0. | 0. | 814. |