| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.6 | 44.4 | 53.7 | 62.6 | 72.0 | 81.3 | 89.0 | 87.7 | 77.6 | 63.7 | 46.1 | 36.1 | 62.5 |
| Highest Mean Max. Temperature (F) | 44.2 | 50.8 | 58.0 | 70.3 | 75.9 | 88.1 | 95.0 | 95.3 | 86.8 | 70.4 | 52.4 | 42.8 | 65.0 |
| Year Highest Occurred | 1967 | 1988 | 1968 | 1977 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1987 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 20.4 | 32.3 | 47.8 | 57.2 | 65.1 | 75.8 | 81.9 | 81.2 | 68.0 | 59.1 | 30.1 | 21.1 | 57.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1986 | 1964 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.5 | 36.6 | 42.9 | 49.3 | 57.0 | 65.5 | 71.8 | 70.8 | 62.0 | 50.3 | 38.6 | 30.3 | 50.4 |
| Highest Mean Temperature (F) | 37.5 | 42.3 | 46.6 | 55.0 | 61.4 | 70.4 | 78.6 | 76.6 | 69.3 | 57.2 | 44.9 | 37.2 | 52.7 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1977 | 1987 | 1977 | 1985 | 1986 | 1990 | 1988 | 1987 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 12.8 | 24.8 | 38.6 | 44.5 | 51.8 | 60.6 | 66.6 | 64.5 | 56.5 | 46.3 | 24.1 | 17.1 | 47.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1964 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.4 | 28.8 | 32.1 | 35.9 | 42.0 | 49.7 | 54.5 | 53.9 | 46.3 | 36.8 | 31.0 | 24.4 | 38.2 |
| Highest Mean Min. Temperature (F) | 32.1 | 34.8 | 37.5 | 41.9 | 47.1 | 55.8 | 62.2 | 61.3 | 53.2 | 43.9 | 37.3 | 31.6 | 41.0 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1988 | 1987 | 1986 | 1985 | 1986 | 1990 | 1988 | 1987 | 1966 | 1990 |
| Lowest Mean Min. Temperature (F) | 5.1 | 17.3 | 25.5 | 30.2 | 37.3 | 45.4 | 48.9 | 47.7 | 40.7 | 32.7 | 18.0 | 13.1 | 35.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1968 | 1964 | 1971 | 1963 | 1964 | 1965 | 1969 | 1985 | 1985 | 1964 |
| Mean Precipitation (in.) | 1.04 | 0.92 | 1.02 | 0.79 | 0.80 | 0.53 | 0.31 | 0.46 | 0.48 | 0.76 | 1.40 | 1.47 | 9.98 |
| Highest Precipitation (in.) | 2.96 | 2.62 | 2.54 | 1.79 | 2.06 | 1.24 | 0.84 | 1.78 | 1.25 | 2.14 | 3.28 | 3.84 | 13.95 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1978 | 1980 | 1964 | 1974 | 1977 | 1980 | 1968 | 1973 | 1973 | 1980 |
| Lowest Precipitation (in.) | 0.26 | 0.05 | 0.04 | 0.10 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 0.24 | 5.96 |
| Year Lowest Occurred | 1977 | 1988 | 1965 | 1977 | 1966 | 1986 | 1967 | 1988 | 1990 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1101. | 795. | 685. | 471. | 254. | 85. | 14. | 32. | 164. | 456. | 792. | 1076. | 5925. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 100. | 225. | 212. | 74. | 0. | 0. | 0. | 617. |