| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 25.9 | 30.8 | 42.7 | 58.2 | 71.0 | 79.8 | 84.0 | 81.6 | 73.4 | 61.5 | 45.4 | 30.6 | 57.1 |
| Highest Mean Max. Temperature (F) | 36.5 | 41.2 | 52.8 | 66.7 | 81.5 | 84.6 | 88.7 | 87.2 | 78.5 | 72.6 | 50.9 | 39.9 | 59.2 |
| Year Highest Occurred | 1990 | 1984 | 1968 | 1977 | 1977 | 1988 | 1983 | 1983 | 1978 | 1963 | 1975 | 1982 | 1981 |
| Lowest Mean Max. Temperature (F) | 14.6 | 21.9 | 32.8 | 50.5 | 65.2 | 71.1 | 79.4 | 75.8 | 70.4 | 54.6 | 39.6 | 20.0 | 54.8 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1990 | 1969 | 1962 | 1986 | 1962 | 1988 | 1985 | 1983 | 1972 |
| Mean Temperature (F) | 17.1 | 21.7 | 33.6 | 47.1 | 58.5 | 67.5 | 71.9 | 69.7 | 61.8 | 50.7 | 37.1 | 22.7 | 46.6 |
| Highest Mean Temperature (F) | 28.6 | 33.3 | 41.6 | 53.8 | 65.7 | 71.3 | 76.1 | 74.6 | 65.8 | 58.8 | 41.9 | 32.7 | 49.5 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1985 | 1977 | 1971 | 1983 | 1983 | 1971 | 1971 | 1975 | 1982 | 1987 |
| Lowest Mean Temperature (F) | 5.2 | 12.4 | 25.8 | 41.0 | 53.1 | 60.9 | 67.8 | 65.4 | 58.1 | 44.7 | 28.7 | 12.5 | 44.5 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1966 | 1969 | 1962 | 1967 | 1974 | 1988 | 1976 | 1963 | 1979 |
| Mean Min. Temperature (F) | 8.2 | 12.6 | 24.4 | 35.9 | 46.0 | 55.0 | 59.8 | 57.6 | 50.2 | 39.8 | 28.6 | 14.7 | 36.1 |
| Highest Mean Min. Temperature (F) | 20.7 | 25.4 | 33.1 | 42.6 | 52.2 | 59.6 | 64.2 | 63.1 | 54.0 | 48.2 | 33.4 | 25.5 | 40.0 |
| Year Highest Occurred | 1989 | 1984 | 1973 | 1985 | 1982 | 1984 | 1987 | 1988 | 1986 | 1971 | 1987 | 1982 | 1987 |
| Lowest Mean Min. Temperature (F) | -4.3 | 2.3 | 18.3 | 30.9 | 39.8 | 50.6 | 56.2 | 52.5 | 44.5 | 33.8 | 17.7 | 1.9 | 31.9 |
| Year Lowest Occurred | 1977 | 1963 | 1975 | 1972 | 1966 | 1969 | 1962 | 1967 | 1976 | 1976 | 1976 | 1963 | 1963 |
| Mean Precipitation (in.) | 1.15 | 1.15 | 2.13 | 3.12 | 3.12 | 3.60 | 3.52 | 3.42 | 4.14 | 2.46 | 2.17 | 1.75 | 31.73 |
| Highest Precipitation (in.) | 2.82 | 3.18 | 4.66 | 6.20 | 7.02 | 8.24 | 6.61 | 8.41 | 15.05 | 5.82 | 6.11 | 3.95 | 44.48 |
| Year Highest Occurred | 1974 | 1971 | 1976 | 1973 | 1978 | 1990 | 1982 | 1980 | 1986 | 1984 | 1985 | 1971 | 1986 |
| Lowest Precipitation (in.) | 0.10 | 0.10 | 0.17 | 0.90 | 0.50 | 0.62 | 0.83 | 0.45 | 0.23 | 0.23 | 0.11 | 0.34 | 22.07 |
| Year Lowest Occurred | 1981 | 1987 | 1981 | 1989 | 1981 | 1987 | 1975 | 1969 | 1979 | 1964 | 1976 | 1964 | 1962 |
| Heating Degree Days (F) | 1485. | 1212. | 973. | 537. | 239. | 38. | 0. | 21. | 117. | 449. | 837. | 1311. | 7219. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 37. | 113. | 219. | 167. | 21. | 6. | 0. | 0. | 563. |