| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.9 | 46.5 | 53.3 | 60.4 | 68.8 | 77.8 | 86.8 | 86.2 | 76.5 | 64.6 | 49.5 | 40.9 | 62.6 |
| Highest Mean Max. Temperature (F) | 49.1 | 51.8 | 58.5 | 67.8 | 73.3 | 85.9 | 93.8 | 94.2 | 84.2 | 72.3 | 54.2 | 47.7 | 65.0 |
| Year Highest Occurred | 1983 | 1983 | 1968 | 1987 | 1987 | 1961 | 1985 | 1967 | 1967 | 1988 | 1981 | 1973 | 1987 |
| Lowest Mean Max. Temperature (F) | 23.7 | 32.9 | 48.3 | 54.2 | 61.3 | 69.2 | 80.5 | 80.2 | 67.5 | 59.3 | 33.9 | 25.4 | 58.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1970 | 1962 | 1971 | 1986 | 1964 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 32.8 | 38.0 | 43.5 | 49.1 | 56.4 | 64.1 | 70.9 | 70.4 | 61.7 | 51.4 | 41.0 | 33.6 | 51.1 |
| Highest Mean Temperature (F) | 41.2 | 44.1 | 47.7 | 54.8 | 60.2 | 69.6 | 76.0 | 75.2 | 68.1 | 57.4 | 44.9 | 40.2 | 53.0 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1987 | 1987 | 1961 | 1985 | 1967 | 1967 | 1988 | 1983 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 16.4 | 24.5 | 39.0 | 44.5 | 51.7 | 57.7 | 66.5 | 65.5 | 55.6 | 47.6 | 27.5 | 19.5 | 47.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1970 | 1962 | 1971 | 1986 | 1964 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 25.5 | 29.5 | 33.6 | 37.8 | 44.0 | 50.3 | 54.9 | 54.5 | 46.8 | 38.1 | 32.5 | 26.3 | 39.5 |
| Highest Mean Min. Temperature (F) | 34.3 | 36.8 | 38.1 | 41.8 | 47.0 | 54.2 | 58.8 | 57.5 | 52.0 | 42.4 | 36.9 | 32.9 | 41.2 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1987 | 1969 | 1975 | 1977 | 1967 | 1988 | 1983 | 1966 | 1967 |
| Lowest Mean Min. Temperature (F) | 9.0 | 16.1 | 28.9 | 34.4 | 41.9 | 46.1 | 51.3 | 50.7 | 42.9 | 33.5 | 21.1 | 13.5 | 35.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1964 | 1971 | 1962 | 1964 | 1971 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 2.38 | 1.71 | 2.00 | 1.49 | 1.35 | 1.06 | 0.54 | 0.66 | 0.95 | 1.40 | 2.43 | 2.53 | 18.50 |
| Highest Precipitation (in.) | 5.55 | 3.95 | 3.72 | 3.00 | 3.73 | 2.94 | 2.42 | 2.33 | 2.28 | 3.05 | 5.83 | 5.78 | 23.78 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1982 | 1962 | 1971 | 1978 | 1977 | 1968 | 1990 | 1973 | 1964 | 1980 |
| Lowest Precipitation (in.) | 0.31 | 0.36 | 0.35 | 0.28 | 0.32 | 0.21 | 0.00 | 0.00 | 0.00 | 0.00 | 0.51 | 0.28 | 13.60 |
| Year Lowest Occurred | 1977 | 1967 | 1965 | 1966 | 1968 | 1973 | 1969 | 1988 | 1990 | 1987 | 1969 | 1986 | 1965 |
| Heating Degree Days (F) | 998. | 756. | 667. | 477. | 270. | 113. | 13. | 31. | 161. | 422. | 720. | 973. | 5601. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 86. | 196. | 199. | 62. | 0. | 0. | 0. | 543. |