| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.5 | 59.8 | 60.2 | 61.3 | 61.6 | 63.3 | 63.8 | 64.8 | 66.9 | 66.7 | 62.5 | 57.6 | 62.2 |
| Highest Mean Max. Temperature (F) | 60.8 | 63.9 | 65.4 | 66.6 | 66.3 | 67.0 | 67.6 | 70.5 | 73.3 | 71.3 | 68.5 | 62.3 | 64.6 |
| Year Highest Occurred | 1976 | 1988 | 1984 | 1987 | 1978 | 1981 | 1985 | 1983 | 1983 | 1965 | 1989 | 1980 | 1983 |
| Lowest Mean Max. Temperature (F) | 53.8 | 54.8 | 57.8 | 56.8 | 57.3 | 59.1 | 60.0 | 60.6 | 61.2 | 59.6 | 58.6 | 54.2 | 60.3 |
| Year Lowest Occurred | 1969 | 1989 | 1964 | 1975 | 1965 | 1965 | 1971 | 1970 | 1962 | 1970 | 1973 | 1963 | 1975 |
| Mean Temperature (F) | 50.3 | 52.7 | 53.2 | 54.2 | 55.4 | 57.3 | 58.5 | 59.6 | 60.5 | 59.4 | 55.1 | 50.8 | 55.6 |
| Highest Mean Temperature (F) | 53.9 | 55.8 | 57.9 | 58.1 | 58.1 | 59.6 | 60.7 | 64.2 | 65.2 | 62.9 | 59.8 | 54.8 | 57.6 |
| Year Highest Occurred | 1978 | 1970 | 1978 | 1989 | 1987 | 1990 | 1990 | 1983 | 1983 | 1965 | 1967 | 1969 | 1983 |
| Lowest Mean Temperature (F) | 47.3 | 48.0 | 50.1 | 50.7 | 52.3 | 53.5 | 55.2 | 56.0 | 57.2 | 54.3 | 51.4 | 47.0 | 53.8 |
| Year Lowest Occurred | 1982 | 1989 | 1985 | 1975 | 1965 | 1965 | 1971 | 1970 | 1962 | 1970 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 43.1 | 45.6 | 46.1 | 47.0 | 49.1 | 51.1 | 53.0 | 54.3 | 54.1 | 52.0 | 47.7 | 44.0 | 48.9 |
| Highest Mean Min. Temperature (F) | 47.6 | 49.9 | 50.8 | 52.6 | 53.9 | 53.5 | 56.8 | 57.9 | 57.0 | 56.4 | 54.3 | 49.3 | 51.6 |
| Year Highest Occurred | 1970 | 1968 | 1978 | 1966 | 1967 | 1969 | 1967 | 1983 | 1983 | 1979 | 1967 | 1969 | 1966 |
| Lowest Mean Min. Temperature (F) | 39.9 | 41.1 | 41.7 | 43.6 | 46.7 | 47.8 | 50.3 | 51.4 | 51.9 | 47.7 | 43.8 | 38.5 | 47.1 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1970 | 1986 | 1965 | 1971 | 1970 | 1988 | 1971 | 1985 | 1990 | 1971 |
| Mean Precipitation (in.) | 4.81 | 3.43 | 3.02 | 1.34 | 0.29 | 0.17 | 0.03 | 0.10 | 0.20 | 1.48 | 3.39 | 3.50 | 21.76 |
| Highest Precipitation (in.) | 11.67 | 8.85 | 9.74 | 5.24 | 1.90 | 1.89 | 0.55 | 1.20 | 1.13 | 7.94 | 8.34 | 8.03 | 37.29 |
| Year Highest Occurred | 1982 | 1980 | 1983 | 1967 | 1990 | 1967 | 1974 | 1965 | 1989 | 1962 | 1985 | 1987 | 1979 |
| Lowest Precipitation (in.) | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10.73 |
| Year Lowest Occurred | 1976 | 1982 | 1984 | 1985 | 1982 | 1990 | 1990 | 1990 | 1988 | 1980 | 1962 | 1989 | 1990 |
| Heating Degree Days (F) | 456. | 344. | 366. | 324. | 298. | 231. | 202. | 173. | 144. | 183. | 297. | 440. | 3458. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 6. | 9. | 9. | 0. | 0. | 24. |