| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.7 | 45.6 | 55.7 | 64.4 | 72.4 | 81.2 | 88.7 | 86.7 | 77.0 | 65.6 | 49.6 | 38.0 | 63.5 |
| Highest Mean Max. Temperature (F) | 43.7 | 53.9 | 61.6 | 75.1 | 78.5 | 88.4 | 94.2 | 91.7 | 85.7 | 76.1 | 54.5 | 43.6 | 67.2 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1971 | 1990 | 1988 | 1965 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 25.5 | 33.5 | 50.2 | 55.9 | 67.3 | 75.3 | 84.9 | 79.8 | 69.4 | 58.7 | 37.5 | 20.8 | 59.9 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1964 | 1983 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 28.3 | 35.4 | 42.4 | 49.1 | 56.7 | 64.9 | 70.6 | 69.1 | 60.2 | 50.4 | 39.2 | 29.5 | 49.7 |
| Highest Mean Temperature (F) | 36.0 | 42.2 | 48.4 | 55.3 | 61.2 | 69.8 | 75.4 | 73.6 | 67.1 | 57.2 | 43.8 | 36.2 | 51.6 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1987 | 1988 | 1985 | 1961 | 1990 | 1988 | 1965 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 15.9 | 23.2 | 37.3 | 43.6 | 53.2 | 61.4 | 67.6 | 65.6 | 54.4 | 45.0 | 28.1 | 11.4 | 45.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1984 | 1963 | 1976 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 19.9 | 25.1 | 29.1 | 33.8 | 41.0 | 48.5 | 52.5 | 51.5 | 43.4 | 35.1 | 28.7 | 20.9 | 35.8 |
| Highest Mean Min. Temperature (F) | 28.8 | 32.2 | 35.9 | 38.8 | 44.9 | 52.5 | 57.7 | 57.3 | 51.4 | 42.1 | 34.6 | 28.9 | 37.8 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1980 | 1980 | 1977 | 1975 | 1961 | 1963 | 1963 | 1983 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 6.2 | 12.8 | 20.4 | 29.8 | 38.0 | 44.8 | 49.3 | 47.0 | 39.0 | 31.3 | 18.7 | 2.0 | 31.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1974 | 1976 | 1986 | 1987 | 1970 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.14 | 0.79 | 0.92 | 1.03 | 1.04 | 0.79 | 0.27 | 0.46 | 0.63 | 0.66 | 1.28 | 1.09 | 10.10 |
| Highest Precipitation (in.) | 3.22 | 3.13 | 2.27 | 2.48 | 3.61 | 1.97 | 1.65 | 2.57 | 1.84 | 2.00 | 3.73 | 3.16 | 14.62 |
| Year Highest Occurred | 1970 | 1986 | 1981 | 1965 | 1980 | 1971 | 1975 | 1968 | 1986 | 1982 | 1988 | 1983 | 1981 |
| Lowest Precipitation (in.) | 0.19 | 0.04 | 0.00 | 0.07 | 0.14 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.03 | 4.33 |
| Year Lowest Occurred | 1968 | 1965 | 1963 | 1961 | 1971 | 1966 | 1988 | 1985 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1138. | 829. | 701. | 477. | 260. | 84. | 8. | 29. | 185. | 453. | 774. | 1101. | 6039. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 81. | 182. | 156. | 41. | 0. | 0. | 0. | 460. |