| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.7 | 44.7 | 53.2 | 62.1 | 71.7 | 81.4 | 90.8 | 89.3 | 78.3 | 66.3 | 49.6 | 38.8 | 63.7 |
| Highest Mean Max. Temperature (F) | 44.0 | 54.0 | 60.8 | 72.1 | 78.1 | 91.9 | 96.0 | 96.5 | 87.0 | 74.5 | 55.1 | 44.5 | 66.3 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1966 | 1961 | 1961 | 1967 | 1963 | 1988 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 27.0 | 30.4 | 47.3 | 53.0 | 65.5 | 75.5 | 83.5 | 81.2 | 68.7 | 60.5 | 36.8 | 23.9 | 59.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1964 | 1982 | 1968 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.9 | 35.9 | 42.2 | 49.5 | 57.8 | 66.6 | 74.4 | 73.6 | 63.8 | 53.2 | 40.7 | 31.0 | 51.6 |
| Highest Mean Temperature (F) | 37.2 | 43.1 | 50.2 | 56.9 | 63.1 | 75.1 | 79.0 | 80.2 | 72.4 | 60.0 | 45.6 | 37.1 | 53.9 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1966 | 1961 | 1961 | 1961 | 1963 | 1963 | 1981 | 1977 | 1961 |
| Lowest Mean Temperature (F) | 18.0 | 20.5 | 36.9 | 42.3 | 52.5 | 61.1 | 69.6 | 68.5 | 57.0 | 48.2 | 28.4 | 15.2 | 47.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1983 | 1976 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.0 | 27.0 | 31.1 | 36.9 | 43.9 | 51.7 | 58.0 | 57.8 | 49.2 | 40.1 | 31.7 | 23.1 | 39.4 |
| Highest Mean Min. Temperature (F) | 30.4 | 35.2 | 39.6 | 41.6 | 48.1 | 58.3 | 62.6 | 64.2 | 57.8 | 47.5 | 37.0 | 30.4 | 41.5 |
| Year Highest Occurred | 1970 | 1986 | 1986 | 1987 | 1966 | 1961 | 1967 | 1961 | 1963 | 1963 | 1981 | 1977 | 1967 |
| Lowest Mean Min. Temperature (F) | 9.0 | 10.6 | 25.8 | 30.9 | 39.5 | 44.7 | 53.6 | 53.1 | 44.2 | 35.4 | 19.9 | 6.5 | 35.3 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1970 | 1977 | 1976 | 1977 | 1985 | 1970 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.68 | 1.35 | 1.57 | 1.48 | 1.22 | 0.97 | 0.33 | 0.52 | 0.85 | 0.88 | 1.92 | 1.64 | 14.41 |
| Highest Precipitation (in.) | 4.48 | 4.54 | 3.66 | 3.20 | 4.07 | 2.76 | 1.52 | 4.14 | 3.83 | 2.71 | 4.31 | 4.63 | 23.21 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1965 | 1980 | 1970 | 1982 | 1968 | 1986 | 1975 | 1988 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.26 | 0.15 | 0.27 | 0.21 | 0.21 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.14 | 7.91 |
| Year Lowest Occurred | 1985 | 1964 | 1969 | 1987 | 1974 | 1989 | 1988 | 1980 | 1987 | 1988 | 1976 | 1986 | 1966 |
| Heating Degree Days (F) | 1088. | 815. | 707. | 465. | 236. | 73. | 6. | 21. | 143. | 371. | 729. | 1054. | 5708. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 121. | 297. | 287. | 107. | 6. | 0. | 0. | 831. |