| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.1 | 48.2 | 57.7 | 67.7 | 77.1 | 87.8 | 92.9 | 89.9 | 81.5 | 69.8 | 54.1 | 42.1 | 67.3 |
| Highest Mean Max. Temperature (F) | 52.0 | 57.6 | 67.9 | 75.3 | 83.7 | 93.7 | 96.2 | 93.8 | 88.9 | 75.8 | 58.6 | 52.8 | 70.5 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1981 | 1974 | 1990 | 1989 | 1969 | 1979 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 27.6 | 37.1 | 51.4 | 59.9 | 71.7 | 82.1 | 88.9 | 82.6 | 72.5 | 61.2 | 46.8 | 32.6 | 65.0 |
| Year Lowest Occurred | 1963 | 1974 | 1964 | 1983 | 1983 | 1967 | 1986 | 1968 | 1961 | 1969 | 1972 | 1990 | 1973 |
| Mean Temperature (F) | 25.6 | 33.3 | 41.8 | 50.5 | 59.3 | 68.1 | 73.7 | 71.2 | 62.7 | 52.0 | 39.2 | 28.6 | 50.5 |
| Highest Mean Temperature (F) | 34.9 | 40.2 | 47.6 | 56.3 | 63.6 | 73.2 | 76.5 | 75.3 | 67.1 | 57.0 | 43.5 | 38.4 | 53.8 |
| Year Highest Occurred | 1981 | 1986 | 1967 | 1981 | 1963 | 1977 | 1981 | 1983 | 1981 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 15.1 | 19.9 | 35.9 | 44.3 | 55.6 | 63.2 | 70.8 | 64.6 | 54.7 | 46.0 | 33.0 | 19.6 | 48.3 |
| Year Lowest Occurred | 1973 | 1974 | 1964 | 1970 | 1975 | 1969 | 1986 | 1989 | 1989 | 1969 | 1979 | 1990 | 1975 |
| Mean Min. Temperature (F) | 12.1 | 18.4 | 25.9 | 33.1 | 41.5 | 48.3 | 54.5 | 52.4 | 43.9 | 34.0 | 24.3 | 15.1 | 33.6 |
| Highest Mean Min. Temperature (F) | 23.6 | 25.7 | 33.2 | 38.4 | 46.2 | 52.9 | 58.7 | 58.5 | 49.8 | 41.9 | 30.8 | 24.0 | 37.2 |
| Year Highest Occurred | 1978 | 1987 | 1978 | 1978 | 1985 | 1977 | 1981 | 1983 | 1981 | 1972 | 1985 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 2.3 | 2.6 | 19.3 | 26.2 | 36.8 | 43.4 | 50.1 | 45.5 | 35.5 | 28.5 | 18.9 | 6.5 | 30.2 |
| Year Lowest Occurred | 1973 | 1974 | 1971 | 1970 | 1972 | 1969 | 1989 | 1989 | 1989 | 1976 | 1969 | 1990 | 1974 |
| Mean Precipitation (in.) | 0.51 | 0.48 | 0.71 | 0.57 | 0.76 | 0.63 | 0.76 | 0.93 | 1.10 | 1.16 | 0.74 | 0.58 | 8.93 |
| Highest Precipitation (in.) | 1.67 | 2.23 | 3.10 | 1.68 | 2.45 | 2.67 | 1.98 | 3.11 | 2.90 | 6.45 | 2.24 | 2.03 | 17.46 |
| Year Highest Occurred | 1989 | 1989 | 1975 | 1988 | 1987 | 1984 | 1977 | 1964 | 1961 | 1972 | 1988 | 1971 | 1973 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.10 | 0.06 | 0.04 | 0.00 | 0.00 | 0.00 | 4.65 |
| Year Lowest Occurred | 1990 | 1984 | 1977 | 1984 | 1974 | 1971 | 1972 | 1978 | 1979 | 1967 | 1976 | 1989 | 1966 |
| Heating Degree Days (F) | 1221. | 888. | 719. | 435. | 186. | 38. | 0. | 10. | 125. | 403. | 774. | 1128. | 5927. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 131. | 270. | 202. | 56. | 0. | 0. | 0. | 668. |