| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 26.5 | 33.4 | 43.5 | 58.2 | 69.8 | 80.0 | 87.5 | 86.4 | 73.7 | 61.0 | 43.1 | 30.3 | 57.8 |
| Highest Mean Max. Temperature (F) | 43.4 | 48.2 | 54.6 | 67.6 | 78.8 | 94.6 | 92.3 | 96.5 | 83.4 | 71.7 | 52.3 | 44.7 | 62.7 |
| Year Highest Occurred | 1981 | 1984 | 1981 | 1980 | 1980 | 1988 | 1984 | 1983 | 1963 | 1963 | 1981 | 1979 | 1981 |
| Lowest Mean Max. Temperature (F) | 10.9 | 14.3 | 26.8 | 46.9 | 63.0 | 72.6 | 79.9 | 77.7 | 60.5 | 50.0 | 26.0 | 12.8 | 53.0 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1975 | 1982 | 1969 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Temperature (F) | 15.6 | 22.0 | 31.5 | 44.6 | 55.6 | 65.2 | 71.4 | 69.8 | 58.1 | 46.5 | 31.4 | 19.2 | 44.2 |
| Highest Mean Temperature (F) | 30.6 | 36.4 | 42.3 | 51.6 | 62.5 | 77.9 | 75.4 | 77.9 | 65.7 | 54.7 | 40.3 | 30.2 | 48.4 |
| Year Highest Occurred | 1981 | 1984 | 1986 | 1987 | 1988 | 1988 | 1989 | 1983 | 1963 | 1963 | 1981 | 1979 | 1981 |
| Lowest Mean Temperature (F) | -0.8 | 4.7 | 14.9 | 37.5 | 50.7 | 59.1 | 64.7 | 62.6 | 47.9 | 39.9 | 16.6 | 2.8 | 40.8 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1979 | 1974 | 1969 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 4.6 | 10.6 | 19.5 | 31.0 | 41.3 | 50.4 | 55.2 | 53.1 | 42.4 | 32.0 | 19.7 | 8.2 | 30.7 |
| Highest Mean Min. Temperature (F) | 21.2 | 24.6 | 31.0 | 36.4 | 46.5 | 61.2 | 60.5 | 59.5 | 48.0 | 37.6 | 28.2 | 17.2 | 34.9 |
| Year Highest Occurred | 1986 | 1984 | 1986 | 1987 | 1988 | 1988 | 1989 | 1971 | 1963 | 1963 | 1981 | 1974 | 1987 |
| Lowest Mean Min. Temperature (F) | -12.4 | -5.0 | 2.9 | 24.5 | 37.0 | 45.5 | 48.7 | 46.1 | 35.3 | 27.8 | 7.2 | -7.3 | 28.1 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1961 | 1963 | 1969 | 1972 | 1963 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.48 | 0.30 | 0.59 | 1.18 | 2.16 | 2.70 | 1.76 | 1.30 | 1.32 | 0.71 | 0.39 | 0.47 | 13.36 |
| Highest Precipitation (in.) | 1.67 | 1.61 | 1.30 | 3.92 | 6.61 | 6.48 | 4.25 | 4.25 | 5.16 | 3.72 | 1.16 | 1.54 | 21.05 |
| Year Highest Occurred | 1971 | 1979 | 1987 | 1969 | 1978 | 1973 | 1962 | 1968 | 1986 | 1971 | 1978 | 1982 | 1978 |
| Lowest Precipitation (in.) | 0.04 | 0.00 | 0.08 | 0.15 | 0.15 | 0.50 | 0.04 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 6.75 |
| Year Lowest Occurred | 1973 | 1990 | 1966 | 1988 | 1980 | 1985 | 1984 | 1967 | 1989 | 1988 | 1987 | 1965 | 1988 |
| Heating Degree Days (F) | 1531. | 1204. | 1039. | 612. | 305. | 106. | 20. | 63. | 253. | 574. | 1008. | 1420. | 8135. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 112. | 218. | 212. | 46. | 0. | 0. | 0. | 602. |