| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.1 | 31.0 | 40.0 | 50.7 | 61.9 | 72.1 | 78.1 | 77.1 | 69.8 | 58.6 | 45.3 | 32.3 | 53.7 |
| Highest Mean Max. Temperature (F) | 37.8 | 41.5 | 46.2 | 57.3 | 68.8 | 81.7 | 85.1 | 83.6 | 73.5 | 69.2 | 50.9 | 40.8 | 57.6 |
| Year Highest Occurred | 1989 | 1984 | 1986 | 1985 | 1985 | 1988 | 1988 | 1988 | 1971 | 1963 | 1975 | 1982 | 1987 |
| Lowest Mean Max. Temperature (F) | 16.0 | 23.1 | 32.5 | 44.4 | 55.9 | 67.0 | 73.5 | 73.1 | 66.5 | 52.9 | 37.9 | 21.0 | 51.4 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1969 | 1962 | 1967 | 1964 | 1981 | 1976 | 1989 | 1979 |
| Mean Temperature (F) | 19.1 | 23.1 | 32.6 | 42.8 | 53.0 | 62.7 | 69.4 | 68.4 | 61.1 | 50.1 | 37.9 | 24.8 | 45.4 |
| Highest Mean Temperature (F) | 30.4 | 32.9 | 39.4 | 47.9 | 58.2 | 69.8 | 74.0 | 73.0 | 65.7 | 58.5 | 43.0 | 32.7 | 48.6 |
| Year Highest Occurred | 1989 | 1984 | 1973 | 1985 | 1985 | 1988 | 1988 | 1983 | 1971 | 1963 | 1975 | 1982 | 1973 |
| Lowest Mean Temperature (F) | 7.1 | 14.3 | 25.3 | 38.4 | 47.4 | 58.1 | 65.5 | 63.5 | 57.8 | 44.7 | 29.7 | 14.0 | 43.3 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1982 | 1978 | 1967 | 1962 | 1988 | 1976 | 1989 | 1979 |
| Mean Min. Temperature (F) | 11.1 | 15.2 | 25.2 | 34.8 | 44.0 | 53.3 | 60.5 | 59.7 | 52.3 | 41.6 | 30.4 | 17.2 | 37.1 |
| Highest Mean Min. Temperature (F) | 23.0 | 24.2 | 34.2 | 38.5 | 49.2 | 57.9 | 63.4 | 64.7 | 57.9 | 50.7 | 35.1 | 25.0 | 41.4 |
| Year Highest Occurred | 1989 | 1984 | 1973 | 1985 | 1972 | 1988 | 1983 | 1973 | 1971 | 1971 | 1975 | 1971 | 1973 |
| Lowest Mean Min. Temperature (F) | -1.8 | 5.5 | 18.0 | 29.6 | 38.9 | 48.9 | 56.3 | 53.8 | 48.3 | 32.6 | 21.4 | 5.3 | 34.7 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1982 | 1967 | 1982 | 1965 | 1967 | 1962 | 1988 | 1976 | 1976 | 1963 |
| Mean Precipitation (in.) | 1.25 | 1.03 | 1.97 | 2.96 | 2.68 | 3.07 | 3.35 | 3.79 | 3.75 | 2.38 | 2.16 | 1.95 | 30.34 |
| Highest Precipitation (in.) | 2.67 | 3.26 | 4.90 | 5.81 | 5.51 | 6.87 | 8.88 | 9.01 | 14.13 | 6.41 | 6.52 | 4.53 | 45.24 |
| Year Highest Occurred | 1965 | 1985 | 1976 | 1984 | 1978 | 1969 | 1981 | 1989 | 1986 | 1985 | 1985 | 1971 | 1985 |
| Lowest Precipitation (in.) | 0.12 | 0.00 | 0.20 | 0.41 | 0.64 | 0.91 | 1.09 | 0.14 | 0.01 | 0.12 | 0.47 | 0.21 | 19.70 |
| Year Lowest Occurred | 1981 | 1987 | 1981 | 1989 | 1975 | 1976 | 1973 | 1969 | 1979 | 1975 | 1976 | 1986 | 1963 |
| Heating Degree Days (F) | 1423. | 1173. | 1004. | 666. | 377. | 124. | 22. | 32. | 132. | 462. | 813. | 1246. | 7474. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 55. | 158. | 137. | 15. | 0. | 0. | 0. | 370. |