| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.6 | 46.0 | 50.4 | 58.0 | 67.5 | 76.5 | 85.5 | 84.3 | 75.9 | 64.5 | 48.3 | 40.9 | 61.5 |
| Highest Mean Max. Temperature (F) | 48.6 | 52.5 | 57.5 | 68.1 | 73.2 | 83.0 | 90.5 | 90.5 | 84.5 | 75.3 | 57.2 | 46.1 | 64.5 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1966 | 1974 | 1990 | 1967 | 1990 | 1988 | 1976 | 1979 | 1990 |
| Lowest Mean Max. Temperature (F) | 33.8 | 37.7 | 43.2 | 47.7 | 57.7 | 70.3 | 77.6 | 75.3 | 66.8 | 55.7 | 40.3 | 35.7 | 58.6 |
| Year Lowest Occurred | 1985 | 1989 | 1971 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1969 | 1985 | 1971 | 1982 |
| Mean Temperature (F) | 31.6 | 36.3 | 39.8 | 45.2 | 53.4 | 61.7 | 68.5 | 67.1 | 59.2 | 49.4 | 38.4 | 32.1 | 48.6 |
| Highest Mean Temperature (F) | 40.3 | 42.9 | 45.9 | 53.2 | 57.4 | 66.8 | 73.0 | 72.0 | 64.9 | 56.9 | 41.8 | 36.6 | 50.9 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1990 | 1981 | 1986 |
| Lowest Mean Temperature (F) | 24.6 | 26.4 | 33.9 | 38.0 | 47.0 | 57.1 | 62.6 | 61.4 | 53.8 | 42.3 | 31.7 | 26.7 | 46.9 |
| Year Lowest Occurred | 1962 | 1989 | 1971 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1969 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 22.6 | 26.5 | 29.0 | 32.4 | 39.2 | 46.8 | 51.5 | 49.9 | 42.4 | 34.3 | 28.4 | 23.3 | 35.5 |
| Highest Mean Min. Temperature (F) | 32.0 | 33.7 | 34.4 | 39.4 | 42.6 | 51.6 | 55.9 | 54.2 | 47.4 | 38.5 | 32.7 | 29.5 | 38.4 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1990 | 1969 | 1986 | 1985 | 1986 | 1963 | 1988 | 1983 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 12.5 | 15.1 | 24.3 | 28.0 | 36.1 | 43.3 | 47.1 | 45.1 | 37.2 | 28.8 | 22.5 | 16.4 | 34.0 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1964 | 1975 | 1976 | 1963 | 1980 | 1961 | 1969 | 1978 | 1990 | 1976 |
| Mean Precipitation (in.) | 1.43 | 1.04 | 1.02 | 0.70 | 0.98 | 1.02 | 0.48 | 0.60 | 0.58 | 0.98 | 1.65 | 1.90 | 12.38 |
| Highest Precipitation (in.) | 3.61 | 4.31 | 3.38 | 2.69 | 3.32 | 3.38 | 3.87 | 2.58 | 2.12 | 7.52 | 5.80 | 12.57 | 22.40 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1977 | 1965 | 1987 | 1976 | 1977 | 1962 | 1988 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.13 | 0.00 | 0.06 | 0.03 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.04 | 7.22 |
| Year Lowest Occurred | 1984 | 1965 | 1965 | 1977 | 1970 | 1973 | 1989 | 1986 | 1987 | 1988 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1035. | 804. | 781. | 594. | 360. | 143. | 36. | 57. | 210. | 484. | 798. | 1020. | 6322. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 44. | 145. | 122. | 36. | 0. | 0. | 0. | 347. |