| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.5 | 58.5 | 63.4 | 71.1 | 80.6 | 90.5 | 97.2 | 94.9 | 86.8 | 76.3 | 62.4 | 53.8 | 74.1 |
| Highest Mean Max. Temperature (F) | 60.2 | 64.3 | 74.9 | 80.1 | 88.9 | 95.9 | 100.7 | 99.0 | 92.6 | 83.0 | 69.9 | 61.4 | 75.9 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1981 | 1988 | 1981 | 1974 | 1965 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 42.5 | 43.8 | 55.4 | 58.4 | 71.1 | 82.8 | 93.7 | 89.3 | 80.1 | 68.7 | 56.8 | 45.1 | 70.8 |
| Year Lowest Occurred | 1974 | 1969 | 1969 | 1967 | 1977 | 1963 | 1987 | 1983 | 1986 | 1972 | 1982 | 1987 | 1982 |
| Mean Temperature (F) | 37.8 | 42.4 | 46.8 | 53.4 | 62.2 | 70.9 | 76.7 | 74.6 | 66.8 | 56.9 | 45.2 | 37.8 | 56.0 |
| Highest Mean Temperature (F) | 42.4 | 48.6 | 55.0 | 60.5 | 68.6 | 75.8 | 79.2 | 78.1 | 70.5 | 61.8 | 50.3 | 42.7 | 57.8 |
| Year Highest Occurred | 1984 | 1963 | 1972 | 1989 | 1984 | 1981 | 1988 | 1971 | 1974 | 1988 | 1976 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 29.7 | 30.1 | 40.1 | 44.9 | 55.6 | 65.3 | 72.5 | 70.2 | 60.6 | 52.3 | 40.4 | 31.6 | 54.1 |
| Year Lowest Occurred | 1974 | 1969 | 1969 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1984 | 1982 | 1990 | 1982 |
| Mean Min. Temperature (F) | 22.0 | 26.3 | 30.2 | 35.7 | 43.8 | 51.2 | 56.1 | 54.2 | 46.8 | 37.4 | 27.8 | 21.7 | 37.8 |
| Highest Mean Min. Temperature (F) | 28.2 | 32.8 | 35.0 | 41.0 | 48.2 | 56.3 | 59.4 | 58.2 | 50.7 | 42.4 | 32.5 | 28.4 | 39.7 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1984 | 1977 | 1984 | 1967 | 1976 | 1963 | 1967 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 16.8 | 16.4 | 24.7 | 31.2 | 40.0 | 46.4 | 51.1 | 50.2 | 41.1 | 32.9 | 23.9 | 12.8 | 36.3 |
| Year Lowest Occurred | 1974 | 1969 | 1969 | 1975 | 1977 | 1980 | 1983 | 1985 | 1986 | 1971 | 1982 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.11 | 0.95 | 0.39 | 0.26 | 0.29 | 0.18 | 0.23 | 0.18 | 0.24 | 0.13 | 0.57 | 0.84 | 5.37 |
| Highest Precipitation (in.) | 8.93 | 6.01 | 1.75 | 1.62 | 1.30 | 1.29 | 1.47 | 0.64 | 1.18 | 0.90 | 1.97 | 5.79 | 17.09 |
| Year Highest Occurred | 1969 | 1969 | 1974 | 1982 | 1962 | 1982 | 1976 | 1983 | 1975 | 1972 | 1984 | 1966 | 1969 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.81 |
| Year Lowest Occurred | 1984 | 1974 | 1990 | 1989 | 1986 | 1986 | 1989 | 1988 | 1984 | 1990 | 1990 | 1990 | 1989 |
| Heating Degree Days (F) | 843. | 633. | 564. | 361. | 140. | 16. | 0. | 0. | 51. | 265. | 594. | 843. | 4310. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 53. | 193. | 363. | 298. | 105. | 14. | 0. | 0. | 1039. |