| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.7 | 52.6 | 59.8 | 68.8 | 77.7 | 86.9 | 88.5 | 85.1 | 79.3 | 70.5 | 57.5 | 49.3 | 68.6 |
| Highest Mean Max. Temperature (F) | 55.4 | 59.2 | 69.5 | 77.8 | 84.6 | 95.1 | 94.5 | 88.9 | 84.9 | 76.6 | 62.6 | 58.5 | 73.3 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1989 | 1990 | 1980 | 1977 | 1983 | 1988 | 1981 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 41.5 | 42.9 | 52.7 | 60.4 | 73.4 | 81.7 | 83.3 | 80.3 | 75.0 | 62.2 | 48.5 | 41.4 | 66.5 |
| Year Lowest Occurred | 1979 | 1964 | 1973 | 1973 | 1973 | 1967 | 1962 | 1967 | 1974 | 1984 | 1972 | 1967 | 1973 |
| Mean Temperature (F) | 34.2 | 38.3 | 44.0 | 51.9 | 60.4 | 69.2 | 72.3 | 70.0 | 64.0 | 54.7 | 43.1 | 35.6 | 53.1 |
| Highest Mean Temperature (F) | 40.0 | 43.8 | 51.7 | 59.1 | 66.2 | 76.1 | 76.5 | 73.6 | 68.0 | 59.0 | 47.1 | 42.6 | 56.5 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1989 | 1990 | 1980 | 1977 | 1983 | 1988 | 1966 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 29.9 | 29.3 | 38.0 | 44.6 | 56.8 | 65.6 | 69.2 | 66.9 | 60.9 | 49.6 | 36.6 | 29.9 | 51.2 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1973 | 1983 | 1973 | 1962 | 1967 | 1961 | 1984 | 1972 | 1967 | 1968 |
| Mean Min. Temperature (F) | 20.6 | 23.9 | 28.2 | 34.9 | 43.0 | 51.6 | 56.0 | 54.7 | 48.7 | 38.8 | 28.7 | 21.8 | 37.6 |
| Highest Mean Min. Temperature (F) | 27.3 | 28.9 | 34.1 | 40.3 | 47.7 | 57.1 | 59.5 | 58.3 | 51.9 | 43.3 | 32.7 | 27.6 | 39.7 |
| Year Highest Occurred | 1969 | 1962 | 1972 | 1989 | 1989 | 1990 | 1966 | 1977 | 1990 | 1963 | 1978 | 1977 | 1989 |
| Lowest Mean Min. Temperature (F) | 15.4 | 15.7 | 23.2 | 28.7 | 37.3 | 46.2 | 53.0 | 53.1 | 44.2 | 34.5 | 22.9 | 17.8 | 35.5 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1973 | 1983 | 1983 | 1983 | 1976 | 1968 | 1976 | 1976 | 1968 | 1983 |
| Mean Precipitation (in.) | 0.70 | 0.82 | 0.72 | 0.64 | 0.82 | 1.01 | 2.81 | 3.27 | 1.95 | 1.27 | 0.91 | 1.10 | 16.02 |
| Highest Precipitation (in.) | 2.03 | 1.70 | 2.06 | 2.73 | 2.61 | 3.02 | 4.70 | 6.39 | 3.87 | 5.27 | 3.45 | 3.41 | 23.61 |
| Year Highest Occurred | 1978 | 1986 | 1973 | 1988 | 1978 | 1967 | 1990 | 1987 | 1972 | 1972 | 1986 | 1965 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.87 | 0.57 | 0.09 | 0.00 | 0.00 | 0.00 | 9.85 |
| Year Lowest Occurred | 1970 | 1984 | 1966 | 1989 | 1972 | 1975 | 1982 | 1962 | 1970 | 1975 | 1989 | 1981 | 1989 |
| Heating Degree Days (F) | 955. | 748. | 651. | 398. | 162. | 27. | 0. | 8. | 75. | 324. | 657. | 911. | 4916. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 19. | 153. | 229. | 163. | 45. | 0. | 0. | 0. | 609. |