| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 52.7 | 59.1 | 65.1 | 73.6 | 83.2 | 93.3 | 98.2 | 95.6 | 88.4 | 77.6 | 63.1 | 53.4 | 75.3 |
| Highest Mean Max. Temperature (F) | 61.0 | 64.3 | 75.4 | 83.6 | 91.0 | 99.3 | 102.8 | 100.7 | 94.7 | 85.6 | 68.9 | 63.4 | 79.2 |
| Year Highest Occurred | 1986 | 1977 | 1972 | 1989 | 1984 | 1981 | 1981 | 1981 | 1979 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 43.7 | 52.5 | 56.8 | 65.4 | 74.3 | 86.9 | 94.9 | 90.2 | 82.9 | 68.7 | 55.7 | 45.5 | 72.4 |
| Year Lowest Occurred | 1979 | 1979 | 1973 | 1967 | 1977 | 1965 | 1974 | 1968 | 1986 | 1972 | 1972 | 1967 | 1975 |
| Mean Temperature (F) | 38.9 | 45.0 | 50.5 | 57.5 | 66.0 | 75.3 | 81.3 | 79.4 | 71.6 | 60.6 | 48.1 | 39.5 | 59.5 |
| Highest Mean Temperature (F) | 46.3 | 49.6 | 57.6 | 65.6 | 72.2 | 80.9 | 85.6 | 83.9 | 77.4 | 68.0 | 53.8 | 46.9 | 63.1 |
| Year Highest Occurred | 1986 | 1968 | 1989 | 1989 | 1984 | 1985 | 1981 | 1981 | 1979 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 32.9 | 39.5 | 45.4 | 50.2 | 60.7 | 68.8 | 78.4 | 74.2 | 65.2 | 56.1 | 42.7 | 33.7 | 56.8 |
| Year Lowest Occurred | 1973 | 1979 | 1964 | 1967 | 1965 | 1963 | 1963 | 1968 | 1965 | 1984 | 1964 | 1967 | 1964 |
| Mean Min. Temperature (F) | 25.0 | 30.7 | 35.9 | 41.4 | 48.7 | 57.2 | 64.3 | 63.2 | 54.7 | 43.5 | 33.1 | 25.7 | 43.6 |
| Highest Mean Min. Temperature (F) | 33.5 | 36.1 | 41.9 | 47.6 | 53.4 | 64.0 | 68.4 | 67.1 | 60.0 | 50.4 | 38.6 | 30.6 | 46.9 |
| Year Highest Occurred | 1978 | 1986 | 1990 | 1989 | 1984 | 1985 | 1985 | 1981 | 1990 | 1988 | 1981 | 1984 | 1981 |
| Lowest Mean Min. Temperature (F) | 18.4 | 24.6 | 30.4 | 35.0 | 43.2 | 48.7 | 58.4 | 58.1 | 46.9 | 36.6 | 27.3 | 18.4 | 40.3 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1967 | 1965 | 1963 | 1962 | 1968 | 1970 | 1970 | 1964 | 1963 | 1964 |
| Mean Precipitation (in.) | 1.37 | 1.26 | 1.66 | 0.81 | 0.50 | 0.26 | 0.72 | 1.06 | 0.82 | 0.69 | 1.12 | 0.90 | 11.17 |
| Highest Precipitation (in.) | 6.15 | 4.46 | 5.19 | 3.60 | 2.33 | 1.70 | 2.31 | 3.59 | 3.08 | 2.63 | 3.26 | 3.03 | 20.66 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1965 | 1977 | 1972 | 1984 | 1982 | 1972 | 1974 | 1987 | 1984 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 6.31 |
| Year Lowest Occurred | 1976 | 1974 | 1972 | 1984 | 1986 | 1986 | 1989 | 1962 | 1979 | 1986 | 1989 | 1989 | 1977 |
| Heating Degree Days (F) | 809. | 560. | 455. | 265. | 76. | 11. | 0. | 0. | 21. | 179. | 507. | 791. | 3674. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 40. | 107. | 320. | 505. | 446. | 219. | 42. | 0. | 0. | 1684. |