| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.5 | 62.7 | 67.7 | 74.3 | 82.1 | 89.6 | 95.6 | 94.0 | 88.8 | 79.8 | 65.1 | 54.5 | 75.7 |
| Highest Mean Max. Temperature (F) | 59.6 | 68.4 | 73.5 | 83.0 | 87.7 | 95.8 | 100.9 | 100.2 | 94.0 | 84.6 | 70.6 | 60.3 | 78.2 |
| Year Highest Occurred | 1976 | 1988 | 1984 | 1966 | 1984 | 1961 | 1961 | 1967 | 1984 | 1978 | 1962 | 1976 | 1966 |
| Lowest Mean Max. Temperature (F) | 48.9 | 56.1 | 61.4 | 64.0 | 73.9 | 83.6 | 89.1 | 86.6 | 83.1 | 73.7 | 58.3 | 45.6 | 73.3 |
| Year Lowest Occurred | 1985 | 1962 | 1973 | 1967 | 1977 | 1969 | 1987 | 1976 | 1986 | 1969 | 1972 | 1963 | 1971 |
| Mean Temperature (F) | 45.2 | 51.3 | 55.3 | 60.2 | 66.9 | 73.3 | 78.1 | 76.8 | 72.6 | 64.9 | 53.5 | 45.3 | 62.0 |
| Highest Mean Temperature (F) | 51.0 | 57.6 | 59.5 | 65.5 | 71.1 | 78.7 | 81.3 | 81.2 | 76.5 | 68.6 | 57.3 | 50.9 | 63.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1987 | 1984 | 1981 | 1988 | 1967 | 1984 | 1987 | 1967 | 1964 | 1981 |
| Lowest Mean Temperature (F) | 40.0 | 47.0 | 51.6 | 52.6 | 61.6 | 68.9 | 72.6 | 72.9 | 68.4 | 60.0 | 49.7 | 40.7 | 59.5 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1969 | 1971 | 1963 | 1971 |
| Mean Min. Temperature (F) | 36.0 | 39.9 | 42.8 | 46.1 | 51.6 | 56.9 | 60.4 | 59.6 | 56.2 | 49.9 | 41.9 | 36.0 | 48.1 |
| Highest Mean Min. Temperature (F) | 43.6 | 47.3 | 49.9 | 52.0 | 55.0 | 61.9 | 64.1 | 62.9 | 59.8 | 53.6 | 46.7 | 42.9 | 50.2 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1973 | 1981 | 1985 | 1990 | 1976 | 1987 | 1967 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 29.4 | 34.2 | 38.0 | 41.0 | 46.7 | 52.3 | 56.1 | 56.9 | 51.2 | 45.1 | 36.6 | 28.5 | 45.6 |
| Year Lowest Occurred | 1989 | 1964 | 1971 | 1970 | 1964 | 1965 | 1987 | 1968 | 1965 | 1971 | 1971 | 1990 | 1971 |
| Mean Precipitation (in.) | 1.56 | 1.64 | 1.37 | 0.72 | 0.22 | 0.05 | 0.02 | 0.05 | 0.33 | 0.57 | 1.39 | 1.32 | 9.24 |
| Highest Precipitation (in.) | 4.68 | 5.26 | 3.98 | 3.03 | 1.87 | 0.39 | 0.43 | 0.73 | 2.77 | 2.69 | 4.99 | 2.88 | 19.04 |
| Year Highest Occurred | 1969 | 1962 | 1978 | 1967 | 1990 | 1964 | 1974 | 1976 | 1983 | 1964 | 1972 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.12 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 5.24 |
| Year Lowest Occurred | 1984 | 1964 | 1972 | 1962 | 1989 | 1990 | 1990 | 1990 | 1988 | 1988 | 1986 | 1989 | 1989 |
| Heating Degree Days (F) | 614. | 384. | 305. | 190. | 46. | 7. | 0. | 0. | 6. | 77. | 345. | 611. | 2585. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 46. | 105. | 256. | 406. | 366. | 234. | 73. | 0. | 0. | 1486. |