| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 60.9 | 63.2 | 64.6 | 68.4 | 71.3 | 74.4 | 75.7 | 76.2 | 77.0 | 73.7 | 65.8 | 60.3 | 69.3 |
| Highest Mean Max. Temperature (F) | 65.1 | 69.6 | 71.5 | 72.5 | 79.9 | 82.5 | 79.4 | 79.8 | 84.7 | 80.6 | 72.6 | 67.3 | 71.7 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1987 | 1984 | 1976 | 1983 | 1983 | 1984 | 1965 | 1976 | 1989 | 1976 |
| Lowest Mean Max. Temperature (F) | 56.3 | 56.6 | 60.9 | 58.6 | 67.6 | 67.0 | 69.6 | 70.9 | 70.0 | 69.3 | 60.6 | 54.6 | 67.7 |
| Year Lowest Occurred | 1979 | 1969 | 1962 | 1967 | 1963 | 1967 | 1962 | 1989 | 1986 | 1988 | 1973 | 1971 | 1974 |
| Mean Temperature (F) | 49.9 | 52.1 | 53.2 | 55.7 | 58.6 | 61.9 | 63.5 | 64.0 | 63.9 | 60.5 | 54.3 | 49.5 | 57.3 |
| Highest Mean Temperature (F) | 55.3 | 56.0 | 58.1 | 59.4 | 63.4 | 65.9 | 66.6 | 67.5 | 69.1 | 64.2 | 59.0 | 53.8 | 59.1 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1984 | 1981 | 1985 | 1983 | 1984 | 1965 | 1976 | 1977 | 1983 |
| Lowest Mean Temperature (F) | 47.0 | 48.2 | 50.4 | 49.4 | 55.9 | 58.5 | 59.8 | 61.5 | 60.0 | 57.3 | 51.5 | 45.1 | 55.6 |
| Year Lowest Occurred | 1963 | 1969 | 1962 | 1967 | 1974 | 1967 | 1962 | 1969 | 1962 | 1971 | 1978 | 1971 | 1975 |
| Mean Min. Temperature (F) | 38.8 | 41.0 | 41.8 | 42.9 | 45.8 | 49.4 | 51.2 | 51.7 | 50.7 | 47.3 | 42.9 | 38.8 | 45.2 |
| Highest Mean Min. Temperature (F) | 45.5 | 46.5 | 48.2 | 47.9 | 50.8 | 52.9 | 54.7 | 55.8 | 56.0 | 52.5 | 47.7 | 45.0 | 48.4 |
| Year Highest Occurred | 1986 | 1980 | 1978 | 1990 | 1987 | 1972 | 1990 | 1990 | 1983 | 1987 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 34.6 | 35.3 | 37.0 | 37.1 | 42.6 | 46.6 | 48.5 | 47.4 | 46.0 | 41.5 | 38.6 | 32.7 | 42.6 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1970 | 1974 | 1976 | 1966 | 1969 | 1970 | 1971 | 1975 | 1990 | 1971 |
| Mean Precipitation (in.) | 5.66 | 4.94 | 4.65 | 2.19 | 0.39 | 0.15 | 0.15 | 0.12 | 0.42 | 1.38 | 4.39 | 4.55 | 28.99 |
| Highest Precipitation (in.) | 14.80 | 12.99 | 15.16 | 8.26 | 4.11 | 1.51 | 2.89 | 1.25 | 2.00 | 3.65 | 11.06 | 13.06 | 59.76 |
| Year Highest Occurred | 1969 | 1973 | 1983 | 1967 | 1990 | 1967 | 1974 | 1976 | 1983 | 1975 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.32 | 0.20 | 0.05 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.05 | 15.02 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1973 | 1987 | 1987 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1989 |
| Heating Degree Days (F) | 468. | 361. | 366. | 284. | 203. | 112. | 72. | 65. | 85. | 151. | 321. | 481. | 2969. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 0. | 19. | 26. | 34. | 52. | 12. | 0. | 0. | 148. |