| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.0 | 44.0 | 51.6 | 61.4 | 70.5 | 80.8 | 85.0 | 82.1 | 75.4 | 65.2 | 51.1 | 41.1 | 62.3 |
| Highest Mean Max. Temperature (F) | 50.5 | 50.9 | 60.3 | 68.2 | 76.7 | 86.9 | 89.8 | 88.4 | 80.4 | 71.9 | 55.9 | 51.1 | 64.7 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1963 | 1990 | 1963 | 1962 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 32.9 | 37.3 | 46.6 | 54.0 | 66.1 | 76.1 | 81.6 | 76.8 | 71.5 | 55.0 | 41.3 | 34.3 | 60.3 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1983 | 1983 | 1983 | 1986 | 1968 | 1961 | 1984 | 1972 | 1961 | 1982 |
| Mean Temperature (F) | 23.0 | 29.1 | 36.4 | 44.9 | 53.7 | 63.0 | 68.0 | 65.8 | 58.6 | 48.1 | 35.5 | 25.5 | 46.0 |
| Highest Mean Temperature (F) | 33.1 | 34.9 | 42.3 | 49.3 | 59.0 | 67.7 | 71.1 | 68.8 | 63.0 | 53.7 | 38.9 | 34.8 | 48.3 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1963 | 1990 | 1980 | 1962 | 1990 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 17.3 | 22.7 | 31.4 | 39.5 | 50.0 | 59.2 | 66.0 | 61.8 | 56.1 | 43.2 | 28.2 | 18.9 | 44.0 |
| Year Lowest Occurred | 1988 | 1964 | 1969 | 1983 | 1978 | 1983 | 1986 | 1974 | 1970 | 1984 | 1972 | 1976 | 1973 |
| Mean Min. Temperature (F) | 6.9 | 14.1 | 21.2 | 28.4 | 36.8 | 45.2 | 51.0 | 49.4 | 41.7 | 31.0 | 19.8 | 9.9 | 29.6 |
| Highest Mean Min. Temperature (F) | 19.1 | 21.6 | 26.2 | 33.2 | 41.2 | 48.9 | 53.4 | 51.7 | 46.6 | 36.9 | 26.7 | 18.5 | 32.8 |
| Year Highest Occurred | 1980 | 1962 | 1990 | 1986 | 1963 | 1981 | 1966 | 1969 | 1990 | 1972 | 1978 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -0.6 | 5.7 | 15.7 | 22.6 | 31.3 | 41.8 | 48.2 | 46.1 | 38.4 | 25.8 | 11.5 | -1.5 | 26.7 |
| Year Lowest Occurred | 1984 | 1979 | 1977 | 1970 | 1975 | 1975 | 1979 | 1989 | 1968 | 1982 | 1976 | 1976 | 1975 |
| Mean Precipitation (in.) | 0.61 | 0.54 | 0.82 | 0.81 | 0.92 | 1.06 | 1.62 | 1.96 | 1.48 | 1.07 | 0.80 | 0.75 | 12.44 |
| Highest Precipitation (in.) | 1.75 | 1.52 | 2.73 | 2.07 | 2.12 | 3.60 | 3.15 | 5.15 | 2.78 | 2.83 | 2.06 | 2.70 | 17.70 |
| Year Highest Occurred | 1979 | 1982 | 1985 | 1986 | 1982 | 1966 | 1982 | 1968 | 1975 | 1989 | 1978 | 1990 | 1990 |
| Lowest Precipitation (in.) | 0.08 | 0.05 | 0.02 | 0.00 | 0.01 | 0.01 | 0.47 | 0.23 | 0.18 | 0.02 | 0.00 | 0.02 | 7.79 |
| Year Lowest Occurred | 1986 | 1981 | 1971 | 1963 | 1974 | 1971 | 1980 | 1962 | 1968 | 1964 | 1989 | 1980 | 1976 |
| Heating Degree Days (F) | 1302. | 1005. | 887. | 603. | 350. | 99. | 8. | 43. | 197. | 524. | 885. | 1225. | 7128. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 39. | 101. | 68. | 5. | 0. | 0. | 0. | 213. |