| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.2 | 35.2 | 40.9 | 51.0 | 61.8 | 71.3 | 80.4 | 78.7 | 68.7 | 57.5 | 41.3 | 31.5 | 54.0 |
| Highest Mean Max. Temperature (F) | 39.9 | 42.6 | 49.8 | 63.0 | 68.6 | 80.1 | 83.8 | 86.7 | 76.9 | 66.2 | 47.2 | 40.1 | 56.4 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1988 | 1974 | 1963 | 1979 | 1988 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 22.7 | 28.6 | 35.2 | 40.6 | 55.8 | 66.3 | 76.1 | 70.3 | 59.5 | 49.5 | 33.9 | 22.6 | 51.4 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1975 | 1984 | 1986 | 1968 | 1961 | 1984 | 1985 | 1990 | 1982 |
| Mean Temperature (F) | 20.1 | 24.3 | 30.3 | 39.1 | 48.0 | 56.1 | 63.3 | 61.5 | 52.5 | 42.8 | 30.8 | 21.3 | 40.8 |
| Highest Mean Temperature (F) | 28.8 | 32.7 | 39.4 | 46.5 | 52.0 | 62.1 | 66.8 | 66.3 | 58.8 | 49.4 | 36.5 | 30.0 | 43.1 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1987 | 1988 | 1975 | 1963 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 10.0 | 14.9 | 22.7 | 31.9 | 43.9 | 52.9 | 59.2 | 56.9 | 46.3 | 36.8 | 23.6 | 10.7 | 38.5 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1984 | 1962 | 1968 | 1965 | 1969 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 9.9 | 13.4 | 19.6 | 27.1 | 34.1 | 40.8 | 46.2 | 44.3 | 36.3 | 28.0 | 20.2 | 11.0 | 27.6 |
| Highest Mean Min. Temperature (F) | 19.5 | 22.8 | 29.0 | 30.9 | 38.5 | 45.4 | 50.2 | 49.7 | 42.8 | 34.5 | 26.0 | 19.9 | 30.0 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1989 | 1987 | 1977 | 1975 | 1961 | 1963 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -2.7 | -0.2 | 10.2 | 22.2 | 30.9 | 37.5 | 40.6 | 40.4 | 30.3 | 23.0 | 13.2 | -1.3 | 24.5 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1970 | 1982 | 1976 | 1962 | 1976 | 1964 | 1970 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.53 | 1.21 | 1.40 | 1.46 | 1.72 | 1.54 | 0.90 | 0.95 | 1.26 | 1.08 | 1.58 | 1.45 | 16.08 |
| Highest Precipitation (in.) | 6.02 | 3.48 | 2.99 | 3.00 | 4.36 | 4.41 | 3.03 | 3.29 | 3.20 | 2.47 | 4.11 | 5.21 | 21.24 |
| Year Highest Occurred | 1969 | 1986 | 1971 | 1963 | 1981 | 1967 | 1987 | 1968 | 1961 | 1975 | 1988 | 1964 | 1982 |
| Lowest Precipitation (in.) | 0.12 | 0.23 | 0.21 | 0.21 | 0.02 | 0.36 | 0.00 | 0.09 | 0.00 | 0.02 | 0.02 | 0.09 | 10.92 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1987 | 1969 | 1978 | 1988 | 1967 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1392. | 1140. | 1076. | 777. | 527. | 273. | 87. | 147. | 383. | 688. | 1026. | 1355. | 8871. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 34. | 38. | 8. | 0. | 0. | 0. | 86. |