| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.9 | 48.5 | 51.8 | 56.4 | 62.3 | 67.3 | 71.1 | 71.6 | 66.8 | 58.6 | 50.4 | 45.6 | 57.9 |
| Highest Mean Max. Temperature (F) | 51.0 | 53.8 | 56.0 | 60.6 | 66.0 | 71.5 | 76.5 | 76.5 | 72.3 | 63.9 | 53.5 | 49.7 | 60.2 |
| Year Highest Occurred | 1986 | 1963 | 1987 | 1980 | 1983 | 1978 | 1985 | 1967 | 1974 | 1987 | 1965 | 1966 | 1987 |
| Lowest Mean Max. Temperature (F) | 36.3 | 40.3 | 47.5 | 53.0 | 58.7 | 63.0 | 67.2 | 66.8 | 63.9 | 56.2 | 39.3 | 40.1 | 56.2 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1972 | 1962 | 1971 | 1986 | 1976 | 1977 | 1984 | 1985 | 1990 | 1985 |
| Mean Temperature (F) | 39.4 | 42.2 | 44.8 | 48.8 | 53.9 | 58.6 | 61.5 | 61.9 | 58.0 | 51.1 | 44.7 | 40.3 | 50.4 |
| Highest Mean Temperature (F) | 45.2 | 46.0 | 48.4 | 52.4 | 57.3 | 61.9 | 65.0 | 65.5 | 61.2 | 54.9 | 48.7 | 44.6 | 52.9 |
| Year Highest Occurred | 1986 | 1963 | 1987 | 1987 | 1983 | 1978 | 1990 | 1990 | 1974 | 1987 | 1987 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 31.0 | 33.5 | 40.3 | 45.6 | 51.0 | 55.3 | 59.1 | 58.1 | 55.2 | 48.7 | 34.1 | 34.9 | 48.9 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1965 | 1971 | 1969 | 1969 | 1972 | 1970 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 34.0 | 35.9 | 37.7 | 41.1 | 45.5 | 49.8 | 51.9 | 52.1 | 49.2 | 43.6 | 38.9 | 35.0 | 42.9 |
| Highest Mean Min. Temperature (F) | 39.4 | 40.8 | 42.0 | 44.9 | 48.5 | 52.5 | 55.0 | 54.7 | 52.3 | 47.6 | 44.1 | 39.6 | 45.5 |
| Year Highest Occurred | 1986 | 1961 | 1986 | 1987 | 1990 | 1989 | 1990 | 1990 | 1979 | 1988 | 1987 | 1979 | 1987 |
| Lowest Mean Min. Temperature (F) | 25.7 | 26.6 | 32.5 | 37.8 | 41.6 | 47.3 | 47.5 | 47.6 | 46.1 | 38.6 | 28.8 | 29.3 | 40.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1970 | 1976 | 1969 | 1970 | 1970 | 1969 | 1985 | 1983 | 1970 |
| Mean Precipitation (in.) | 3.58 | 2.47 | 2.12 | 1.84 | 1.56 | 1.30 | 1.04 | 1.03 | 1.49 | 2.30 | 3.61 | 3.81 | 26.15 |
| Highest Precipitation (in.) | 8.14 | 5.80 | 3.38 | 2.97 | 3.01 | 3.19 | 2.83 | 4.31 | 3.55 | 5.17 | 10.67 | 7.45 | 39.43 |
| Year Highest Occurred | 1971 | 1982 | 1988 | 1969 | 1986 | 1990 | 1982 | 1990 | 1983 | 1967 | 1990 | 1979 | 1990 |
| Lowest Precipitation (in.) | 0.60 | 0.92 | 0.46 | 0.77 | 0.56 | 0.32 | 0.00 | 0.00 | 0.17 | 0.11 | 1.11 | 0.59 | 16.98 |
| Year Lowest Occurred | 1985 | 1969 | 1965 | 1973 | 1972 | 1987 | 1985 | 1986 | 1989 | 1987 | 1976 | 1985 | 1987 |
| Heating Degree Days (F) | 794. | 638. | 626. | 486. | 344. | 195. | 119. | 119. | 214. | 431. | 609. | 766. | 5341. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 10. | 23. | 0. | 0. | 0. | 0. | 33. |