| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.3 | 34.8 | 41.6 | 53.4 | 64.6 | 74.3 | 83.1 | 80.9 | 71.3 | 58.9 | 43.2 | 33.4 | 55.9 |
| Highest Mean Max. Temperature (F) | 37.3 | 43.8 | 51.8 | 62.5 | 73.1 | 82.0 | 86.8 | 85.0 | 78.8 | 67.2 | 48.7 | 38.9 | 58.7 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1977 | 1969 | 1988 | 1988 | 1969 | 1979 | 1963 | 1962 | 1979 | 1977 |
| Lowest Mean Max. Temperature (F) | 21.2 | 25.9 | 33.7 | 46.2 | 58.8 | 68.0 | 78.6 | 76.0 | 63.3 | 50.0 | 37.8 | 26.0 | 51.8 |
| Year Lowest Occurred | 1979 | 1985 | 1969 | 1975 | 1983 | 1967 | 1982 | 1968 | 1965 | 1969 | 1985 | 1985 | 1984 |
| Mean Temperature (F) | 20.9 | 22.9 | 29.9 | 40.2 | 49.6 | 57.8 | 65.4 | 63.3 | 54.6 | 44.2 | 32.6 | 23.4 | 42.1 |
| Highest Mean Temperature (F) | 27.9 | 30.5 | 39.0 | 46.6 | 55.8 | 64.5 | 69.5 | 66.6 | 60.3 | 51.0 | 36.8 | 30.5 | 45.2 |
| Year Highest Occurred | 1981 | 1981 | 1986 | 1987 | 1969 | 1988 | 1988 | 1970 | 1990 | 1988 | 1965 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 8.8 | 12.3 | 20.0 | 34.9 | 45.6 | 52.8 | 60.4 | 58.4 | 49.4 | 38.3 | 27.4 | 16.0 | 39.1 |
| Year Lowest Occurred | 1979 | 1985 | 1969 | 1984 | 1975 | 1963 | 1962 | 1962 | 1965 | 1969 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 10.6 | 10.9 | 18.2 | 27.0 | 34.6 | 41.3 | 47.6 | 45.7 | 38.0 | 29.4 | 21.9 | 13.4 | 28.2 |
| Highest Mean Min. Temperature (F) | 18.8 | 19.8 | 26.1 | 33.7 | 38.7 | 47.0 | 52.2 | 51.2 | 45.2 | 35.8 | 26.0 | 23.0 | 31.9 |
| Year Highest Occurred | 1983 | 1986 | 1986 | 1990 | 1987 | 1988 | 1988 | 1983 | 1990 | 1988 | 1970 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | -3.6 | -1.4 | 6.1 | 20.6 | 30.2 | 34.5 | 39.6 | 36.2 | 31.0 | 25.5 | 15.8 | 4.2 | 22.0 |
| Year Lowest Occurred | 1979 | 1985 | 1962 | 1963 | 1963 | 1962 | 1962 | 1962 | 1974 | 1975 | 1961 | 1990 | 1962 |
| Mean Precipitation (in.) | 0.93 | 0.85 | 0.98 | 1.15 | 1.18 | 1.11 | 0.71 | 0.82 | 1.17 | 1.11 | 1.07 | 1.14 | 12.22 |
| Highest Precipitation (in.) | 3.58 | 4.25 | 2.28 | 2.74 | 3.16 | 2.89 | 1.83 | 5.13 | 4.65 | 2.77 | 3.60 | 5.36 | 21.34 |
| Year Highest Occurred | 1980 | 1986 | 1967 | 1972 | 1980 | 1969 | 1982 | 1983 | 1982 | 1981 | 1970 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.05 | 0.10 | 0.29 | 0.00 | 0.00 | 0.11 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 5.11 |
| Year Lowest Occurred | 1961 | 1964 | 1969 | 1987 | 1972 | 1979 | 1988 | 1985 | 1974 | 1988 | 1976 | 1986 | 1988 |
| Heating Degree Days (F) | 1367. | 1179. | 1088. | 744. | 477. | 230. | 56. | 97. | 319. | 645. | 972. | 1290. | 8464. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 69. | 45. | 7. | 0. | 0. | 0. | 135. |