| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.0 | 43.6 | 54.9 | 63.8 | 72.5 | 80.3 | 86.8 | 85.9 | 77.2 | 63.6 | 46.2 | 35.3 | 62.1 |
| Highest Mean Max. Temperature (F) | 45.2 | 53.2 | 59.8 | 71.2 | 76.9 | 87.1 | 94.4 | 93.4 | 84.3 | 69.0 | 52.5 | 42.1 | 64.4 |
| Year Highest Occurred | 1967 | 1967 | 1981 | 1977 | 1969 | 1961 | 1985 | 1961 | 1990 | 1988 | 1990 | 1973 | 1967 |
| Lowest Mean Max. Temperature (F) | 21.7 | 32.9 | 48.8 | 58.2 | 67.6 | 75.0 | 82.0 | 79.7 | 71.0 | 58.3 | 31.9 | 24.5 | 58.9 |
| Year Lowest Occurred | 1969 | 1989 | 1989 | 1967 | 1984 | 1988 | 1987 | 1968 | 1985 | 1968 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 26.9 | 34.4 | 42.7 | 50.3 | 58.5 | 65.9 | 71.0 | 70.3 | 61.8 | 49.9 | 37.5 | 27.8 | 49.8 |
| Highest Mean Temperature (F) | 37.2 | 41.0 | 45.9 | 55.7 | 62.2 | 71.1 | 76.7 | 76.9 | 68.5 | 55.5 | 42.4 | 35.4 | 51.8 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1977 | 1969 | 1986 | 1985 | 1961 | 1990 | 1988 | 1990 | 1966 | 1990 |
| Lowest Mean Temperature (F) | 13.4 | 20.1 | 37.3 | 45.2 | 54.2 | 61.5 | 68.0 | 65.4 | 56.9 | 45.8 | 22.5 | 17.7 | 46.0 |
| Year Lowest Occurred | 1969 | 1985 | 1971 | 1982 | 1984 | 1971 | 1983 | 1968 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 18.8 | 25.0 | 30.5 | 36.8 | 44.5 | 51.4 | 55.1 | 54.6 | 46.5 | 36.1 | 28.7 | 20.3 | 37.4 |
| Highest Mean Min. Temperature (F) | 31.4 | 32.3 | 34.8 | 42.0 | 48.4 | 58.0 | 62.0 | 61.0 | 52.7 | 42.0 | 33.5 | 28.7 | 40.0 |
| Year Highest Occurred | 1981 | 1961 | 1987 | 1990 | 1987 | 1986 | 1990 | 1986 | 1990 | 1988 | 1989 | 1966 | 1990 |
| Lowest Mean Min. Temperature (F) | 4.9 | 7.1 | 25.3 | 30.5 | 40.8 | 46.9 | 51.4 | 48.6 | 41.4 | 31.5 | 13.0 | 7.7 | 33.0 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1982 | 1984 | 1981 | 1981 | 1969 | 1971 | 1984 | 1985 | 1984 | 1985 |
| Mean Precipitation (in.) | 0.84 | 0.69 | 0.67 | 0.52 | 0.55 | 0.47 | 0.25 | 0.38 | 0.43 | 0.48 | 1.17 | 1.38 | 7.83 |
| Highest Precipitation (in.) | 2.29 | 1.92 | 1.92 | 2.66 | 2.18 | 1.29 | 1.00 | 2.01 | 1.68 | 1.66 | 4.68 | 2.69 | 14.03 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1963 | 1990 | 1984 | 1966 | 1968 | 1986 | 1973 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.61 |
| Year Lowest Occurred | 1977 | 1988 | 1990 | 1985 | 1986 | 1970 | 1989 | 1988 | 1990 | 1988 | 1976 | 1990 | 1976 |
| Heating Degree Days (F) | 1181. | 857. | 691. | 441. | 210. | 76. | 13. | 29. | 152. | 468. | 825. | 1153. | 6096. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 103. | 199. | 194. | 56. | 0. | 0. | 0. | 560. |