| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.0 | 48.9 | 58.2 | 65.9 | 74.4 | 82.6 | 89.4 | 88.5 | 79.4 | 66.8 | 50.9 | 41.1 | 65.6 |
| Highest Mean Max. Temperature (F) | 52.8 | 56.4 | 62.9 | 71.9 | 79.0 | 90.3 | 98.6 | 95.1 | 86.9 | 71.0 | 55.5 | 49.0 | 69.1 |
| Year Highest Occurred | 1967 | 1967 | 1986 | 1977 | 1985 | 1961 | 1985 | 1967 | 1967 | 1965 | 1962 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 22.6 | 33.9 | 52.4 | 61.0 | 69.4 | 76.9 | 84.2 | 82.2 | 73.2 | 63.0 | 37.7 | 27.6 | 63.1 |
| Year Lowest Occurred | 1979 | 1989 | 1989 | 1975 | 1962 | 1980 | 1986 | 1964 | 1986 | 1990 | 1985 | 1985 | 1989 |
| Mean Temperature (F) | 33.4 | 39.5 | 46.7 | 53.4 | 61.1 | 68.8 | 74.4 | 73.5 | 64.9 | 53.5 | 42.3 | 34.1 | 53.8 |
| Highest Mean Temperature (F) | 43.0 | 46.9 | 50.8 | 57.5 | 64.7 | 74.2 | 80.1 | 79.0 | 70.1 | 57.8 | 46.8 | 40.7 | 56.0 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1977 | 1987 | 1961 | 1985 | 1977 | 1963 | 1965 | 1990 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 15.1 | 25.4 | 42.2 | 48.9 | 56.9 | 64.1 | 70.5 | 69.1 | 60.3 | 50.0 | 30.0 | 23.5 | 51.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1984 | 1971 | 1986 | 1969 | 1983 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 25.9 | 30.1 | 35.1 | 40.8 | 47.8 | 55.0 | 59.3 | 58.5 | 50.4 | 40.2 | 33.7 | 27.1 | 42.0 |
| Highest Mean Min. Temperature (F) | 34.5 | 38.1 | 40.2 | 44.0 | 50.9 | 59.5 | 62.5 | 64.8 | 54.9 | 45.2 | 38.8 | 34.1 | 43.5 |
| Year Highest Occurred | 1990 | 1961 | 1983 | 1987 | 1987 | 1977 | 1975 | 1977 | 1963 | 1979 | 1965 | 1973 | 1977 |
| Lowest Mean Min. Temperature (F) | 7.5 | 16.8 | 30.1 | 36.7 | 44.1 | 50.9 | 56.7 | 52.6 | 45.3 | 36.1 | 22.2 | 17.7 | 39.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1984 | 1971 | 1986 | 1969 | 1983 | 1970 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 0.90 | 0.73 | 0.61 | 0.46 | 0.58 | 0.38 | 0.14 | 0.31 | 0.31 | 0.44 | 1.04 | 1.09 | 6.99 |
| Highest Precipitation (in.) | 3.02 | 2.30 | 1.59 | 1.16 | 2.02 | 0.89 | 0.75 | 1.82 | 1.04 | 1.59 | 2.78 | 2.83 | 11.61 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1969 | 1962 | 1980 | 1966 | 1977 | 1977 | 1982 | 1973 | 1973 | 1980 |
| Lowest Precipitation (in.) | 0.13 | 0.00 | 0.04 | 0.00 | 0.01 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.21 | 3.13 |
| Year Lowest Occurred | 1977 | 1967 | 1964 | 1977 | 1966 | 1976 | 1973 | 1988 | 1990 | 1987 | 1976 | 1976 | 1967 |
| Heating Degree Days (F) | 980. | 714. | 567. | 348. | 136. | 35. | 0. | 11. | 95. | 357. | 681. | 958. | 4882. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 16. | 149. | 291. | 274. | 92. | 0. | 0. | 0. | 822. |