| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.7 | 46.4 | 54.5 | 63.2 | 73.2 | 84.2 | 91.8 | 89.3 | 80.4 | 67.7 | 52.1 | 40.5 | 65.3 |
| Highest Mean Max. Temperature (F) | 47.7 | 53.9 | 65.3 | 71.0 | 80.7 | 92.4 | 94.8 | 94.1 | 86.7 | 74.5 | 59.2 | 49.3 | 67.9 |
| Year Highest Occurred | 1969 | 1970 | 1972 | 1987 | 1969 | 1974 | 1971 | 1969 | 1979 | 1964 | 1962 | 1977 | 1977 |
| Lowest Mean Max. Temperature (F) | 27.7 | 37.1 | 48.7 | 55.5 | 67.4 | 77.3 | 87.8 | 82.5 | 73.2 | 59.5 | 45.2 | 30.2 | 61.9 |
| Year Lowest Occurred | 1984 | 1984 | 1973 | 1975 | 1965 | 1967 | 1986 | 1968 | 1986 | 1969 | 1979 | 1985 | 1984 |
| Mean Temperature (F) | 28.1 | 34.4 | 41.4 | 49.0 | 57.9 | 67.6 | 75.5 | 73.4 | 64.4 | 52.6 | 39.8 | 29.4 | 51.1 |
| Highest Mean Temperature (F) | 35.5 | 41.6 | 49.1 | 56.4 | 63.0 | 73.2 | 77.7 | 77.2 | 70.0 | 59.7 | 46.5 | 38.5 | 53.3 |
| Year Highest Occurred | 1969 | 1963 | 1986 | 1987 | 1963 | 1974 | 1989 | 1969 | 1979 | 1988 | 1965 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 19.7 | 25.3 | 35.4 | 42.1 | 52.3 | 62.4 | 72.9 | 67.8 | 58.7 | 44.9 | 33.6 | 20.3 | 48.8 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1975 | 1967 | 1982 | 1968 | 1965 | 1969 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 16.4 | 22.4 | 28.2 | 34.8 | 42.5 | 50.9 | 59.2 | 57.5 | 48.3 | 37.4 | 27.3 | 18.2 | 36.9 |
| Highest Mean Min. Temperature (F) | 25.4 | 29.4 | 37.3 | 41.7 | 47.2 | 56.5 | 61.8 | 61.0 | 55.7 | 45.3 | 34.1 | 27.7 | 40.3 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1987 | 1963 | 1977 | 1966 | 1986 | 1990 | 1988 | 1965 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 5.3 | 13.5 | 19.6 | 26.1 | 35.4 | 45.4 | 56.8 | 50.6 | 41.8 | 30.1 | 21.1 | 7.9 | 33.2 |
| Year Lowest Occurred | 1973 | 1984 | 1976 | 1970 | 1975 | 1975 | 1972 | 1976 | 1970 | 1976 | 1969 | 1972 | 1971 |
| Mean Precipitation (in.) | 1.27 | 1.26 | 2.08 | 1.82 | 1.43 | 0.90 | 0.75 | 0.87 | 1.21 | 1.38 | 1.46 | 1.48 | 15.91 |
| Highest Precipitation (in.) | 3.18 | 3.33 | 3.74 | 4.48 | 3.68 | 3.15 | 1.99 | 2.18 | 5.05 | 3.58 | 4.79 | 4.07 | 25.33 |
| Year Highest Occurred | 1974 | 1962 | 1983 | 1968 | 1983 | 1969 | 1985 | 1984 | 1982 | 1981 | 1983 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.25 | 0.06 | 0.41 | 0.21 | 0.09 | 0.00 | 0.00 | 0.02 | 0.00 | 0.12 | 0.31 | 0.14 | 7.99 |
| Year Lowest Occurred | 1968 | 1970 | 1972 | 1977 | 1969 | 1979 | 1978 | 1980 | 1974 | 1964 | 1962 | 1980 | 1989 |
| Heating Degree Days (F) | 1144. | 857. | 732. | 486. | 239. | 54. | 0. | 0. | 108. | 397. | 756. | 1104. | 5877. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 19. | 132. | 326. | 263. | 90. | 13. | 0. | 0. | 849. |