| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 65.2 | 66.8 | 67.7 | 72.2 | 76.6 | 83.2 | 90.0 | 90.7 | 86.9 | 81.7 | 72.2 | 65.8 | 76.6 |
| Highest Mean Max. Temperature (F) | 73.2 | 73.6 | 76.7 | 81.3 | 87.3 | 92.0 | 95.1 | 95.5 | 94.6 | 88.3 | 79.9 | 72.6 | 79.7 |
| Year Highest Occurred | 1976 | 1988 | 1972 | 1989 | 1984 | 1981 | 1985 | 1967 | 1984 | 1965 | 1989 | 1989 | 1989 |
| Lowest Mean Max. Temperature (F) | 59.3 | 58.7 | 60.9 | 59.6 | 69.3 | 75.5 | 85.1 | 84.8 | 80.4 | 74.0 | 66.8 | 59.5 | 74.4 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1986 | 1972 | 1964 | 1971 | 1973 |
| Mean Temperature (F) | 52.1 | 53.7 | 54.8 | 57.8 | 61.8 | 66.6 | 71.0 | 71.8 | 69.5 | 65.2 | 57.8 | 52.4 | 61.2 |
| Highest Mean Temperature (F) | 57.3 | 58.7 | 60.2 | 64.7 | 67.6 | 72.6 | 75.5 | 75.1 | 77.2 | 69.8 | 62.8 | 57.0 | 62.8 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1981 | 1984 | 1967 | 1984 | 1965 | 1976 | 1980 | 1984 |
| Lowest Mean Temperature (F) | 48.0 | 49.1 | 50.1 | 49.8 | 57.2 | 62.0 | 68.0 | 68.7 | 65.1 | 61.6 | 54.0 | 47.5 | 59.5 |
| Year Lowest Occurred | 1973 | 1969 | 1962 | 1967 | 1977 | 1965 | 1975 | 1976 | 1986 | 1971 | 1978 | 1971 | 1975 |
| Mean Min. Temperature (F) | 39.0 | 40.6 | 41.8 | 43.4 | 47.0 | 49.9 | 52.0 | 52.8 | 52.1 | 48.6 | 43.4 | 38.9 | 45.8 |
| Highest Mean Min. Temperature (F) | 45.2 | 46.8 | 48.2 | 48.1 | 50.6 | 53.1 | 55.9 | 57.1 | 59.8 | 54.8 | 48.8 | 44.5 | 48.2 |
| Year Highest Occurred | 1980 | 1968 | 1978 | 1989 | 1987 | 1981 | 1984 | 1983 | 1984 | 1987 | 1967 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 35.1 | 35.8 | 37.4 | 39.2 | 43.8 | 47.9 | 49.1 | 50.2 | 48.5 | 44.0 | 39.0 | 33.0 | 43.9 |
| Year Lowest Occurred | 1989 | 1974 | 1977 | 1970 | 1964 | 1978 | 1962 | 1970 | 1962 | 1971 | 1971 | 1990 | 1971 |
| Mean Precipitation (in.) | 3.58 | 3.98 | 3.54 | 1.47 | 0.21 | 0.04 | 0.01 | 0.05 | 0.36 | 0.57 | 2.35 | 2.57 | 18.73 |
| Highest Precipitation (in.) | 18.33 | 14.18 | 14.14 | 5.75 | 2.85 | 0.41 | 0.08 | 0.72 | 2.98 | 2.69 | 10.25 | 9.02 | 47.28 |
| Year Highest Occurred | 1969 | 1962 | 1978 | 1983 | 1977 | 1963 | 1972 | 1983 | 1976 | 1983 | 1965 | 1974 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.27 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1977 | 1987 | 1989 | 1990 | 1990 | 1988 | 1990 | 1980 | 1989 | 1989 |
| Heating Degree Days (F) | 400. | 316. | 322. | 242. | 132. | 53. | 9. | 0. | 21. | 71. | 226. | 391. | 2183. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 26. | 32. | 101. | 195. | 213. | 156. | 77. | 10. | 0. | 815. |