| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.2 | 45.2 | 51.5 | 59.7 | 68.4 | 77.6 | 87.0 | 86.0 | 77.9 | 66.2 | 48.4 | 39.0 | 62.1 |
| Highest Mean Max. Temperature (F) | 44.8 | 52.9 | 58.6 | 69.0 | 75.9 | 85.6 | 91.6 | 93.2 | 86.1 | 76.2 | 56.6 | 46.0 | 64.1 |
| Year Highest Occurred | 1961 | 1977 | 1986 | 1990 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1989 | 1990 |
| Lowest Mean Max. Temperature (F) | 28.1 | 34.5 | 47.0 | 49.4 | 60.0 | 71.1 | 79.9 | 77.7 | 68.2 | 55.9 | 37.8 | 30.1 | 58.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1985 | 1985 | 1984 |
| Mean Temperature (F) | 27.5 | 33.9 | 38.5 | 43.7 | 51.1 | 59.1 | 65.2 | 64.0 | 55.7 | 46.7 | 36.3 | 28.4 | 45.8 |
| Highest Mean Temperature (F) | 35.1 | 41.2 | 43.0 | 48.7 | 54.7 | 64.2 | 68.9 | 69.2 | 61.8 | 51.7 | 42.6 | 34.5 | 47.5 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1962 | 1966 | 1961 | 1985 | 1971 | 1963 | 1988 | 1966 | 1973 | 1981 |
| Lowest Mean Temperature (F) | 14.3 | 21.1 | 33.5 | 36.7 | 46.6 | 54.9 | 60.5 | 60.7 | 50.4 | 41.9 | 22.7 | 15.6 | 41.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1977 | 1984 | 1986 | 1980 | 1965 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 16.7 | 22.5 | 25.4 | 27.6 | 33.7 | 40.7 | 43.4 | 41.9 | 33.5 | 27.0 | 24.2 | 17.7 | 29.5 |
| Highest Mean Min. Temperature (F) | 25.9 | 30.0 | 32.1 | 31.9 | 37.9 | 44.8 | 49.8 | 47.2 | 40.5 | 35.0 | 30.4 | 27.2 | 31.9 |
| Year Highest Occurred | 1981 | 1980 | 1983 | 1965 | 1971 | 1982 | 1975 | 1979 | 1963 | 1979 | 1966 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 0.5 | 7.7 | 19.4 | 21.7 | 28.9 | 37.0 | 38.9 | 37.1 | 27.8 | 20.5 | 7.6 | 1.0 | 24.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1986 | 1964 | 1976 | 1986 | 1987 | 1965 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.30 | 0.91 | 1.03 | 0.80 | 1.11 | 1.09 | 0.61 | 0.65 | 0.52 | 0.83 | 1.47 | 1.39 | 11.71 |
| Highest Precipitation (in.) | 4.19 | 2.18 | 3.73 | 2.58 | 3.08 | 3.67 | 4.20 | 3.15 | 1.71 | 2.34 | 3.29 | 4.97 | 19.84 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1978 | 1977 | 1969 | 1987 | 1984 | 1985 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.07 | 0.03 | 0.00 | 0.22 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.04 | 5.11 |
| Year Lowest Occurred | 1985 | 1964 | 1968 | 1966 | 1975 | 1973 | 1989 | 1980 | 1987 | 1988 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1163. | 871. | 822. | 639. | 431. | 189. | 63. | 96. | 292. | 567. | 861. | 1135. | 7129. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 69. | 65. | 13. | 0. | 0. | 0. | 159. |