| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.5 | 43.4 | 53.0 | 63.0 | 73.8 | 84.7 | 92.8 | 90.0 | 80.0 | 66.7 | 50.2 | 38.0 | 64.3 |
| Highest Mean Max. Temperature (F) | 45.4 | 51.9 | 63.6 | 71.3 | 81.7 | 91.9 | 95.5 | 93.4 | 86.5 | 73.4 | 57.4 | 45.5 | 66.7 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1969 | 1986 | 1961 | 1985 | 1979 | 1963 | 1962 | 1977 | 1986 |
| Lowest Mean Max. Temperature (F) | 27.1 | 33.4 | 42.9 | 54.3 | 67.7 | 78.1 | 88.6 | 83.3 | 72.4 | 58.0 | 43.6 | 31.1 | 61.7 |
| Year Lowest Occurred | 1984 | 1989 | 1964 | 1975 | 1977 | 1967 | 1987 | 1968 | 1965 | 1969 | 1979 | 1985 | 1982 |
| Mean Temperature (F) | 27.7 | 33.6 | 41.5 | 49.8 | 59.3 | 68.5 | 76.3 | 73.8 | 64.7 | 53.4 | 40.4 | 29.7 | 51.6 |
| Highest Mean Temperature (F) | 34.5 | 41.9 | 50.1 | 56.4 | 65.6 | 73.7 | 78.7 | 76.7 | 70.1 | 59.9 | 46.5 | 36.9 | 53.7 |
| Year Highest Occurred | 1969 | 1963 | 1986 | 1987 | 1969 | 1961 | 1989 | 1969 | 1990 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 18.9 | 24.2 | 32.3 | 43.4 | 54.3 | 64.4 | 73.2 | 68.8 | 58.6 | 47.1 | 34.9 | 22.7 | 49.0 |
| Year Lowest Occurred | 1984 | 1964 | 1964 | 1975 | 1977 | 1975 | 1982 | 1968 | 1961 | 1969 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 18.8 | 23.8 | 30.0 | 36.7 | 44.8 | 52.2 | 59.7 | 57.6 | 49.2 | 40.0 | 30.5 | 21.3 | 38.7 |
| Highest Mean Min. Temperature (F) | 26.3 | 31.8 | 36.5 | 41.9 | 49.4 | 56.5 | 62.3 | 61.4 | 56.0 | 46.4 | 36.3 | 28.3 | 41.2 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1989 | 1969 | 1988 | 1989 | 1963 | 1990 | 1963 | 1965 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 10.7 | 13.9 | 21.6 | 32.4 | 39.5 | 47.6 | 55.9 | 53.5 | 43.8 | 35.6 | 25.1 | 13.6 | 36.0 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1984 | 1975 | 1976 | 1986 | 1975 | 1961 | 1984 | 1961 | 1990 | 1984 |
| Mean Precipitation (in.) | 1.57 | 1.74 | 2.29 | 2.12 | 1.94 | 1.23 | 0.92 | 1.21 | 1.59 | 1.96 | 2.04 | 2.04 | 20.65 |
| Highest Precipitation (in.) | 4.21 | 4.54 | 4.28 | 4.70 | 4.70 | 3.72 | 3.15 | 4.77 | 8.08 | 6.76 | 4.55 | 6.10 | 37.16 |
| Year Highest Occurred | 1980 | 1983 | 1978 | 1986 | 1981 | 1964 | 1974 | 1983 | 1982 | 1981 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.30 | 0.43 | 0.76 | 0.04 | 0.00 | 0.03 | 0.00 | 0.02 | 0.07 | 0.51 | 0.18 | 10.12 |
| Year Lowest Occurred | 1961 | 1988 | 1969 | 1980 | 1974 | 1980 | 1980 | 1962 | 1974 | 1978 | 1962 | 1989 | 1976 |
| Heating Degree Days (F) | 1156. | 879. | 729. | 460. | 203. | 42. | 0. | 0. | 101. | 372. | 738. | 1094. | 5774. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 27. | 147. | 350. | 273. | 92. | 12. | 0. | 0. | 901. |