| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.6 | 43.7 | 50.8 | 57.1 | 65.1 | 73.8 | 81.6 | 81.3 | 72.8 | 61.6 | 46.7 | 38.3 | 59.2 |
| Highest Mean Max. Temperature (F) | 45.6 | 49.3 | 55.1 | 63.5 | 70.3 | 80.2 | 89.0 | 89.8 | 80.5 | 70.6 | 52.2 | 44.2 | 62.4 |
| Year Highest Occurred | 1967 | 1967 | 1968 | 1977 | 1969 | 1961 | 1985 | 1967 | 1967 | 1988 | 1990 | 1980 | 1967 |
| Lowest Mean Max. Temperature (F) | 22.8 | 32.4 | 46.8 | 51.9 | 58.5 | 66.9 | 75.3 | 75.5 | 66.3 | 56.6 | 33.5 | 24.2 | 56.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1983 | 1968 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 30.8 | 36.0 | 41.3 | 46.4 | 53.4 | 61.1 | 67.7 | 67.2 | 59.1 | 49.2 | 38.8 | 31.7 | 48.6 |
| Highest Mean Temperature (F) | 38.3 | 41.6 | 45.9 | 51.5 | 57.9 | 65.8 | 73.6 | 73.2 | 65.3 | 56.3 | 43.4 | 37.2 | 50.8 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1987 | 1987 | 1961 | 1985 | 1967 | 1963 | 1988 | 1990 | 1980 | 1967 |
| Lowest Mean Temperature (F) | 15.3 | 24.4 | 37.8 | 42.0 | 49.3 | 55.9 | 63.2 | 62.5 | 53.9 | 45.3 | 26.2 | 18.5 | 45.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1986 | 1964 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 24.0 | 28.3 | 31.8 | 35.7 | 41.5 | 48.5 | 53.7 | 53.2 | 45.4 | 36.7 | 31.0 | 25.0 | 37.9 |
| Highest Mean Min. Temperature (F) | 30.9 | 34.2 | 36.8 | 39.5 | 46.0 | 52.7 | 58.6 | 57.3 | 52.4 | 41.9 | 35.5 | 31.5 | 39.5 |
| Year Highest Occurred | 1990 | 1961 | 1986 | 1987 | 1987 | 1969 | 1976 | 1977 | 1963 | 1988 | 1965 | 1973 | 1987 |
| Lowest Mean Min. Temperature (F) | 7.7 | 16.4 | 27.1 | 30.9 | 37.9 | 44.9 | 50.3 | 49.1 | 41.3 | 33.3 | 18.8 | 12.7 | 34.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1964 | 1971 | 1981 | 1964 | 1971 | 1970 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.49 | 0.98 | 1.04 | 0.78 | 0.77 | 0.62 | 0.28 | 0.47 | 0.54 | 0.75 | 1.66 | 1.74 | 11.12 |
| Highest Precipitation (in.) | 3.96 | 3.31 | 2.74 | 2.21 | 2.70 | 1.99 | 1.31 | 1.52 | 1.63 | 2.59 | 3.70 | 6.11 | 16.83 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1988 | 1977 | 1969 | 1966 | 1968 | 1963 | 1979 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.17 | 0.03 | 0.16 | 0.06 | 0.02 | 0.02 | 0.00 | 0.00 | 0.00 | 0.01 | 0.43 | 0.20 | 6.05 |
| Year Lowest Occurred | 1984 | 1967 | 1968 | 1966 | 1966 | 1974 | 1984 | 1988 | 1975 | 1987 | 1976 | 1976 | 1967 |
| Heating Degree Days (F) | 1060. | 812. | 735. | 558. | 360. | 157. | 43. | 67. | 212. | 490. | 786. | 1032. | 6312. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 40. | 127. | 135. | 35. | 0. | 0. | 0. | 337. |