| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.6 | 34.7 | 41.1 | 52.4 | 63.8 | 74.7 | 83.4 | 81.4 | 71.1 | 58.6 | 42.1 | 32.2 | 55.5 |
| Highest Mean Max. Temperature (F) | 40.0 | 47.0 | 53.2 | 60.1 | 72.2 | 82.4 | 87.6 | 88.4 | 79.6 | 67.9 | 50.9 | 43.7 | 58.7 |
| Year Highest Occurred | 1961 | 1986 | 1986 | 1987 | 1966 | 1986 | 1964 | 1967 | 1969 | 1965 | 1969 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 20.7 | 23.4 | 34.9 | 41.4 | 58.8 | 67.4 | 75.8 | 76.3 | 63.4 | 48.9 | 34.9 | 21.2 | 50.9 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1968 | 1983 | 1967 | 1983 | 1984 | 1965 | 1984 | 1971 | 1983 | 1984 |
| Mean Temperature (F) | 19.7 | 23.5 | 29.5 | 39.5 | 49.3 | 59.0 | 66.8 | 64.8 | 55.2 | 44.4 | 30.6 | 21.3 | 42.0 |
| Highest Mean Temperature (F) | 28.0 | 35.2 | 39.8 | 45.5 | 54.2 | 66.7 | 71.8 | 68.6 | 60.5 | 51.8 | 35.7 | 33.7 | 44.3 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1987 | 1966 | 1988 | 1988 | 1971 | 1963 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 7.4 | 12.7 | 22.3 | 32.3 | 43.8 | 53.6 | 62.8 | 58.4 | 48.3 | 37.5 | 24.2 | 12.0 | 38.3 |
| Year Lowest Occurred | 1985 | 1989 | 1985 | 1984 | 1978 | 1967 | 1969 | 1968 | 1965 | 1984 | 1971 | 1983 | 1984 |
| Mean Min. Temperature (F) | 8.9 | 12.1 | 17.8 | 26.5 | 34.8 | 43.2 | 50.2 | 48.1 | 39.2 | 30.2 | 18.9 | 10.4 | 28.4 |
| Highest Mean Min. Temperature (F) | 18.0 | 23.3 | 26.4 | 31.5 | 39.0 | 51.2 | 56.1 | 52.9 | 44.7 | 37.1 | 25.3 | 23.6 | 30.5 |
| Year Highest Occurred | 1971 | 1986 | 1986 | 1962 | 1970 | 1988 | 1988 | 1983 | 1990 | 1963 | 1980 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -7.6 | -0.9 | 9.1 | 20.7 | 28.3 | 39.7 | 41.1 | 40.3 | 33.2 | 25.5 | 13.4 | 2.5 | 25.2 |
| Year Lowest Occurred | 1985 | 1985 | 1985 | 1984 | 1978 | 1975 | 1969 | 1968 | 1965 | 1970 | 1971 | 1967 | 1985 |
| Mean Precipitation (in.) | 0.44 | 0.31 | 0.67 | 0.94 | 1.02 | 0.89 | 0.64 | 0.68 | 0.72 | 0.65 | 0.58 | 0.52 | 8.06 |
| Highest Precipitation (in.) | 1.92 | 1.03 | 2.86 | 2.47 | 2.99 | 2.72 | 3.54 | 2.91 | 2.49 | 2.13 | 2.52 | 1.72 | 16.56 |
| Year Highest Occurred | 1988 | 1965 | 1983 | 1963 | 1980 | 1965 | 1973 | 1961 | 1986 | 1971 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.30 |
| Year Lowest Occurred | 1989 | 1981 | 1989 | 1985 | 1969 | 1982 | 1974 | 1982 | 1979 | 1988 | 1976 | 1986 | 1990 |
| Heating Degree Days (F) | 1404. | 1162. | 1101. | 765. | 487. | 210. | 46. | 74. | 306. | 639. | 1032. | 1355. | 8581. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 30. | 102. | 67. | 12. | 0. | 0. | 0. | 211. |