| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.4 | 45.7 | 52.2 | 62.3 | 71.7 | 81.9 | 88.7 | 86.3 | 77.3 | 66.7 | 51.8 | 42.8 | 64.1 |
| Highest Mean Max. Temperature (F) | 52.2 | 54.4 | 63.1 | 69.6 | 78.1 | 88.6 | 92.5 | 90.8 | 83.4 | 74.2 | 60.5 | 54.2 | 67.0 |
| Year Highest Occurred | 1986 | 1970 | 1986 | 1981 | 1963 | 1980 | 1980 | 1983 | 1981 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 29.1 | 31.5 | 39.8 | 54.2 | 66.0 | 72.4 | 84.4 | 82.5 | 66.1 | 51.0 | 40.2 | 27.8 | 61.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1983 | 1967 | 1972 | 1979 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 26.6 | 31.4 | 37.9 | 47.5 | 57.1 | 66.4 | 72.4 | 70.0 | 60.8 | 49.9 | 37.2 | 28.2 | 48.8 |
| Highest Mean Temperature (F) | 36.7 | 39.1 | 47.1 | 54.5 | 61.1 | 71.6 | 75.4 | 74.7 | 66.0 | 56.8 | 43.3 | 38.8 | 51.9 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1977 | 1977 | 1980 | 1983 | 1981 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 15.1 | 17.6 | 27.2 | 41.8 | 52.2 | 60.9 | 68.9 | 67.4 | 53.1 | 39.4 | 28.3 | 16.2 | 47.0 |
| Year Lowest Occurred | 1962 | 1989 | 1965 | 1973 | 1983 | 1967 | 1972 | 1968 | 1965 | 1969 | 1985 | 1983 | 1989 |
| Mean Min. Temperature (F) | 11.7 | 17.0 | 23.7 | 32.7 | 42.4 | 50.8 | 55.9 | 53.8 | 44.3 | 33.1 | 22.6 | 13.6 | 33.5 |
| Highest Mean Min. Temperature (F) | 21.2 | 24.0 | 31.1 | 39.3 | 45.9 | 55.6 | 58.6 | 58.5 | 49.7 | 39.4 | 27.1 | 23.3 | 36.7 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1987 | 1977 | 1966 | 1983 | 1963 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -0.3 | 3.6 | 14.5 | 28.2 | 38.3 | 46.5 | 52.9 | 49.8 | 38.8 | 27.8 | 16.2 | 4.5 | 30.2 |
| Year Lowest Occurred | 1962 | 1989 | 1965 | 1989 | 1990 | 1975 | 1990 | 1962 | 1988 | 1969 | 1979 | 1983 | 1989 |
| Mean Precipitation (in.) | 0.39 | 0.39 | 1.15 | 1.70 | 2.34 | 1.87 | 1.10 | 1.19 | 1.34 | 0.85 | 0.70 | 0.58 | 13.60 |
| Highest Precipitation (in.) | 1.13 | 1.45 | 4.69 | 4.76 | 6.86 | 5.10 | 3.49 | 3.99 | 3.89 | 4.81 | 2.46 | 1.73 | 20.91 |
| Year Highest Occurred | 1980 | 1987 | 1983 | 1973 | 1978 | 1967 | 1967 | 1979 | 1961 | 1969 | 1983 | 1987 | 1983 |
| Lowest Precipitation (in.) | 0.01 | 0.02 | 0.10 | 0.01 | 0.08 | 0.01 | 0.06 | 0.00 | 0.01 | 0.04 | 0.02 | 0.04 | 7.09 |
| Year Lowest Occurred | 1983 | 1970 | 1966 | 1963 | 1974 | 1971 | 1989 | 1971 | 1977 | 1988 | 1976 | 1976 | 1964 |
| Heating Degree Days (F) | 1190. | 941. | 840. | 525. | 253. | 70. | 0. | 10. | 171. | 468. | 834. | 1141. | 6443. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 112. | 232. | 165. | 45. | 0. | 0. | 0. | 562. |