| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 63.1 | 64.8 | 65.1 | 67.5 | 68.2 | 69.8 | 70.1 | 71.3 | 72.1 | 72.0 | 67.7 | 63.6 | 67.9 |
| Highest Mean Max. Temperature (F) | 69.8 | 71.6 | 74.7 | 73.5 | 80.0 | 78.6 | 76.7 | 76.5 | 82.0 | 78.1 | 73.0 | 70.2 | 72.8 |
| Year Highest Occurred | 1986 | 1988 | 1984 | 1986 | 1984 | 1981 | 1977 | 1985 | 1984 | 1967 | 1986 | 1989 | 1984 |
| Lowest Mean Max. Temperature (F) | 58.4 | 56.5 | 58.7 | 59.8 | 62.6 | 63.5 | 62.8 | 66.8 | 66.5 | 67.8 | 62.4 | 58.4 | 64.6 |
| Year Lowest Occurred | 1990 | 1962 | 1962 | 1967 | 1964 | 1962 | 1962 | 1966 | 1962 | 1988 | 1961 | 1971 | 1964 |
| Mean Temperature (F) | 52.0 | 53.8 | 54.2 | 56.0 | 57.4 | 59.9 | 61.0 | 62.1 | 62.2 | 60.8 | 56.6 | 52.5 | 57.4 |
| Highest Mean Temperature (F) | 57.8 | 57.2 | 59.8 | 59.8 | 63.0 | 65.3 | 65.1 | 65.9 | 70.4 | 65.5 | 60.7 | 59.4 | 60.1 |
| Year Highest Occurred | 1986 | 1968 | 1984 | 1989 | 1984 | 1981 | 1985 | 1983 | 1984 | 1965 | 1977 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 46.8 | 49.3 | 49.0 | 50.1 | 53.7 | 56.0 | 56.4 | 59.3 | 58.0 | 57.0 | 52.7 | 48.4 | 55.1 |
| Year Lowest Occurred | 1990 | 1962 | 1963 | 1963 | 1964 | 1962 | 1962 | 1963 | 1962 | 1971 | 1961 | 1971 | 1962 |
| Mean Min. Temperature (F) | 40.8 | 42.8 | 43.2 | 44.5 | 46.7 | 49.9 | 51.8 | 52.8 | 52.3 | 49.6 | 45.5 | 41.2 | 46.8 |
| Highest Mean Min. Temperature (F) | 46.8 | 48.5 | 50.1 | 48.3 | 50.1 | 52.9 | 55.4 | 56.1 | 58.7 | 53.8 | 49.2 | 49.8 | 48.1 |
| Year Highest Occurred | 1978 | 1968 | 1978 | 1966 | 1987 | 1969 | 1984 | 1983 | 1984 | 1972 | 1981 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 32.2 | 36.9 | 36.1 | 37.3 | 44.1 | 45.3 | 48.2 | 50.3 | 46.3 | 43.0 | 39.7 | 37.7 | 43.7 |
| Year Lowest Occurred | 1988 | 1988 | 1963 | 1963 | 1975 | 1988 | 1975 | 1962 | 1986 | 1986 | 1986 | 1990 | 1988 |
| Mean Precipitation (in.) | 3.26 | 2.93 | 2.62 | 1.32 | 0.25 | 0.03 | 0.01 | 0.02 | 0.33 | 0.83 | 2.00 | 2.67 | 16.27 |
| Highest Precipitation (in.) | 13.18 | 9.92 | 7.14 | 5.82 | 2.25 | 0.24 | 0.10 | 0.44 | 4.20 | 3.65 | 5.76 | 7.20 | 32.58 |
| Year Highest Occurred | 1969 | 1962 | 1981 | 1982 | 1977 | 1964 | 1969 | 1983 | 1976 | 1986 | 1965 | 1977 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.49 |
| Year Lowest Occurred | 1976 | 1974 | 1972 | 1986 | 1986 | 1989 | 1990 | 1990 | 1988 | 1988 | 1980 | 1989 | 1989 |
| Heating Degree Days (F) | 403. | 314. | 340. | 275. | 239. | 161. | 142. | 107. | 127. | 152. | 255. | 388. | 2903. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 0. | 0. | 8. | 18. | 17. | 43. | 21. | 0. | 0. | 112. |