| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.3 | 62.4 | 65.3 | 71.8 | 81.0 | 90.1 | 96.7 | 95.5 | 89.7 | 79.8 | 65.0 | 56.6 | 75.9 |
| Highest Mean Max. Temperature (F) | 62.4 | 68.3 | 72.7 | 80.5 | 86.3 | 97.0 | 101.6 | 101.8 | 94.8 | 85.7 | 70.7 | 63.7 | 78.2 |
| Year Highest Occurred | 1986 | 1988 | 1972 | 1987 | 1973 | 1961 | 1961 | 1967 | 1984 | 1978 | 1986 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 53.6 | 56.0 | 60.4 | 58.0 | 72.3 | 83.9 | 90.5 | 87.6 | 81.6 | 72.8 | 59.0 | 51.6 | 73.0 |
| Year Lowest Occurred | 1982 | 1969 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1986 | 1984 | 1982 | 1972 | 1982 |
| Mean Temperature (F) | 45.6 | 49.5 | 52.2 | 56.8 | 63.9 | 71.1 | 76.4 | 75.4 | 70.9 | 63.0 | 52.4 | 45.6 | 60.2 |
| Highest Mean Temperature (F) | 51.2 | 54.7 | 57.2 | 62.4 | 68.4 | 75.4 | 80.5 | 81.1 | 75.0 | 67.0 | 56.4 | 49.8 | 61.4 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1987 | 1987 | 1977 | 1988 | 1967 | 1984 | 1987 | 1967 | 1977 | 1966 |
| Lowest Mean Temperature (F) | 42.1 | 44.7 | 48.3 | 48.5 | 58.6 | 67.0 | 71.0 | 71.2 | 65.1 | 58.6 | 48.4 | 40.8 | 58.6 |
| Year Lowest Occurred | 1985 | 1990 | 1985 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1982 | 1990 | 1982 |
| Mean Min. Temperature (F) | 33.9 | 36.7 | 39.1 | 41.8 | 46.8 | 52.2 | 56.0 | 55.3 | 52.0 | 46.2 | 39.7 | 34.5 | 44.5 |
| Highest Mean Min. Temperature (F) | 40.9 | 42.2 | 45.9 | 45.5 | 51.5 | 57.5 | 59.7 | 60.3 | 56.0 | 49.8 | 43.8 | 41.8 | 46.0 |
| Year Highest Occurred | 1978 | 1968 | 1978 | 1965 | 1987 | 1977 | 1984 | 1967 | 1967 | 1987 | 1970 | 1964 | 1978 |
| Lowest Mean Min. Temperature (F) | 27.6 | 30.5 | 34.5 | 37.6 | 43.4 | 49.1 | 49.2 | 51.0 | 47.7 | 43.4 | 34.0 | 25.9 | 42.0 |
| Year Lowest Occurred | 1963 | 1990 | 1977 | 1975 | 1961 | 1980 | 1963 | 1989 | 1964 | 1971 | 1990 | 1990 | 1989 |
| Mean Precipitation (in.) | 5.22 | 4.40 | 4.99 | 2.69 | 0.73 | 0.25 | 0.17 | 0.17 | 0.60 | 1.76 | 4.45 | 4.46 | 29.89 |
| Highest Precipitation (in.) | 12.26 | 14.39 | 12.21 | 10.09 | 3.51 | 1.26 | 3.05 | 1.51 | 3.09 | 5.99 | 13.42 | 14.38 | 61.80 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1967 | 1990 | 1970 | 1974 | 1976 | 1982 | 1962 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.28 | 0.40 | 0.45 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.00 | 11.20 |
| Year Lowest Occurred | 1984 | 1964 | 1972 | 1987 | 1985 | 1990 | 1990 | 1990 | 1988 | 1988 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 601. | 434. | 397. | 264. | 99. | 13. | 0. | 0. | 15. | 109. | 378. | 601. | 2911. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 18. | 65. | 196. | 353. | 322. | 192. | 47. | 0. | 0. | 1193. |