| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.9 | 36.8 | 39.1 | 41.7 | 45.6 | 49.6 | 54.3 | 55.9 | 52.4 | 47.4 | 41.8 | 38.4 | 45.0 |
| Highest Mean Max. Temperature (F) | 40.2 | 40.9 | 41.8 | 44.6 | 48.4 | 54.0 | 58.6 | 62.1 | 56.1 | 50.2 | 46.0 | 42.3 | 46.5 |
| Year Highest Occurred | 1968 | 1962 | 1967 | 1967 | 1967 | 1979 | 1967 | 1969 | 1984 | 1989 | 1970 | 1990 | 1984 |
| Lowest Mean Max. Temperature (F) | 33.3 | 33.9 | 34.7 | 38.2 | 42.3 | 45.6 | 50.4 | 51.6 | 48.9 | 44.0 | 38.0 | 35.1 | 42.1 |
| Year Lowest Occurred | 1975 | 1977 | 1975 | 1976 | 1973 | 1971 | 1975 | 1976 | 1976 | 1976 | 1976 | 1976 | 1976 |
| Mean Temperature (F) | 32.6 | 32.4 | 34.7 | 37.4 | 41.2 | 45.3 | 49.6 | 51.3 | 48.0 | 42.9 | 37.6 | 34.4 | 40.6 |
| Highest Mean Temperature (F) | 36.2 | 36.2 | 37.6 | 39.9 | 44.0 | 48.8 | 54.1 | 55.4 | 51.8 | 45.3 | 41.2 | 38.7 | 42.1 |
| Year Highest Occurred | 1963 | 1962 | 1987 | 1965 | 1967 | 1979 | 1967 | 1969 | 1984 | 1989 | 1985 | 1990 | 1984 |
| Lowest Mean Temperature (F) | 29.3 | 29.6 | 31.1 | 34.2 | 38.4 | 42.3 | 44.6 | 48.4 | 45.3 | 40.9 | 34.7 | 29.9 | 38.6 |
| Year Lowest Occurred | 1983 | 1964 | 1975 | 1976 | 1973 | 1971 | 1971 | 1976 | 1990 | 1980 | 1987 | 1969 | 1976 |
| Mean Min. Temperature (F) | 28.2 | 27.9 | 30.3 | 33.1 | 36.7 | 40.9 | 44.9 | 46.7 | 43.5 | 38.3 | 33.2 | 30.4 | 36.2 |
| Highest Mean Min. Temperature (F) | 33.0 | 31.4 | 34.1 | 35.2 | 39.8 | 43.6 | 49.5 | 50.9 | 47.5 | 40.4 | 37.9 | 35.0 | 37.6 |
| Year Highest Occurred | 1963 | 1979 | 1986 | 1965 | 1962 | 1984 | 1967 | 1962 | 1984 | 1984 | 1985 | 1990 | 1984 |
| Lowest Mean Min. Temperature (F) | 23.3 | 23.8 | 26.0 | 30.1 | 32.0 | 38.5 | 38.4 | 43.3 | 39.6 | 35.5 | 30.3 | 24.5 | 34.1 |
| Year Lowest Occurred | 1986 | 1971 | 1988 | 1976 | 1971 | 1973 | 1971 | 1971 | 1990 | 1980 | 1962 | 1969 | 1971 |
| Mean Precipitation (in.) | 5.16 | 3.86 | 4.73 | 3.93 | 2.93 | 2.44 | 2.71 | 4.07 | 4.96 | 5.82 | 7.10 | 6.67 | 54.38 |
| Highest Precipitation (in.) | 10.28 | 8.21 | 9.63 | 10.17 | 5.98 | 4.88 | 6.10 | 7.34 | 11.30 | 10.01 | 11.65 | 12.61 | 69.82 |
| Year Highest Occurred | 1969 | 1966 | 1962 | 1965 | 1963 | 1987 | 1967 | 1974 | 1964 | 1979 | 1966 | 1981 | 1967 |
| Lowest Precipitation (in.) | 2.71 | 1.72 | 2.33 | 1.42 | 0.27 | 0.90 | 0.71 | 2.16 | 2.29 | 2.58 | 2.11 | 3.82 | 39.26 |
| Year Lowest Occurred | 1973 | 1982 | 1961 | 1962 | 1982 | 1990 | 1986 | 1989 | 1981 | 1990 | 1989 | 1987 | 1989 |
| Heating Degree Days (F) | 1004. | 913. | 939. | 828. | 738. | 591. | 477. | 425. | 510. | 685. | 822. | 949. | 8881. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |