| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.5 | 40.8 | 46.8 | 54.9 | 63.2 | 71.5 | 80.6 | 81.0 | 70.6 | 58.1 | 43.0 | 35.0 | 56.7 |
| Highest Mean Max. Temperature (F) | 41.6 | 47.6 | 52.6 | 63.6 | 70.1 | 79.6 | 88.3 | 91.2 | 80.8 | 66.8 | 47.5 | 42.1 | 59.2 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1981 | 1980 | 1967 |
| Lowest Mean Max. Temperature (F) | 23.7 | 28.8 | 42.6 | 47.4 | 57.6 | 65.9 | 75.4 | 74.6 | 62.0 | 51.9 | 30.3 | 25.9 | 54.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1978 | 1981 | 1983 | 1989 | 1985 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 27.7 | 33.0 | 37.6 | 43.9 | 51.1 | 58.3 | 64.5 | 64.8 | 56.2 | 46.5 | 35.6 | 28.5 | 45.6 |
| Highest Mean Temperature (F) | 35.3 | 38.7 | 43.3 | 50.9 | 54.7 | 63.7 | 70.0 | 70.6 | 63.4 | 53.5 | 39.6 | 35.7 | 47.5 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1961 | 1985 | 1967 | 1967 | 1988 | 1981 | 1980 | 1967 |
| Lowest Mean Temperature (F) | 14.9 | 21.5 | 34.0 | 38.7 | 47.7 | 54.5 | 60.7 | 59.3 | 50.9 | 42.1 | 23.3 | 19.1 | 43.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1974 | 1976 | 1986 | 1980 | 1971 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 20.9 | 25.2 | 28.4 | 33.0 | 38.8 | 45.2 | 48.4 | 48.6 | 41.7 | 34.9 | 28.3 | 21.9 | 34.6 |
| Highest Mean Min. Temperature (F) | 29.0 | 31.4 | 34.0 | 38.1 | 43.0 | 49.2 | 53.8 | 53.1 | 47.5 | 40.2 | 32.1 | 29.3 | 35.9 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1987 | 1987 | 1970 | 1975 | 1983 | 1963 | 1988 | 1989 | 1980 | 1987 |
| Lowest Mean Min. Temperature (F) | 6.1 | 14.1 | 22.9 | 29.7 | 36.9 | 41.6 | 44.2 | 43.6 | 37.1 | 31.2 | 16.3 | 11.7 | 31.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1967 | 1968 | 1962 | 1962 | 1980 | 1971 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.73 | 1.32 | 1.93 | 2.19 | 2.80 | 2.13 | 1.10 | 1.33 | 1.49 | 1.68 | 1.89 | 1.72 | 21.31 |
| Highest Precipitation (in.) | 4.34 | 2.86 | 3.82 | 4.23 | 5.86 | 4.48 | 3.81 | 4.24 | 3.04 | 3.90 | 3.47 | 4.77 | 27.60 |
| Year Highest Occurred | 1970 | 1972 | 1984 | 1965 | 1990 | 1964 | 1982 | 1968 | 1985 | 1975 | 1973 | 1964 | 1968 |
| Lowest Precipitation (in.) | 0.45 | 0.39 | 0.70 | 0.72 | 1.02 | 0.84 | 0.02 | 0.00 | 0.04 | 0.00 | 0.56 | 0.40 | 13.56 |
| Year Lowest Occurred | 1977 | 1964 | 1965 | 1977 | 1966 | 1986 | 1985 | 1967 | 1990 | 1987 | 1976 | 1985 | 1987 |
| Heating Degree Days (F) | 1156. | 896. | 849. | 633. | 431. | 215. | 80. | 103. | 288. | 574. | 882. | 1132. | 7239. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 64. | 97. | 24. | 0. | 0. | 0. | 199. |