| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.1 | 52.0 | 62.1 | 72.1 | 82.4 | 93.1 | 99.1 | 96.6 | 87.5 | 74.7 | 58.4 | 45.3 | 72.1 |
| Highest Mean Max. Temperature (F) | 54.0 | 60.0 | 71.4 | 79.5 | 88.3 | 98.4 | 102.6 | 100.6 | 93.1 | 82.8 | 63.1 | 54.4 | 75.4 |
| Year Highest Occurred | 1981 | 1986 | 1972 | 1989 | 1984 | 1988 | 1988 | 1985 | 1979 | 1988 | 1989 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 26.5 | 39.1 | 55.4 | 65.7 | 77.0 | 86.0 | 95.6 | 88.9 | 79.4 | 64.8 | 50.2 | 35.0 | 69.1 |
| Year Lowest Occurred | 1973 | 1979 | 1964 | 1983 | 1975 | 1967 | 1965 | 1968 | 1961 | 1969 | 1979 | 1978 | 1973 |
| Mean Temperature (F) | 30.1 | 38.8 | 48.2 | 57.1 | 66.3 | 75.4 | 81.7 | 79.7 | 70.2 | 57.8 | 44.4 | 33.4 | 56.9 |
| Highest Mean Temperature (F) | 38.7 | 46.2 | 54.3 | 61.8 | 70.6 | 79.9 | 83.8 | 83.4 | 74.0 | 63.3 | 49.8 | 41.3 | 59.2 |
| Year Highest Occurred | 1981 | 1986 | 1972 | 1981 | 1966 | 1988 | 1971 | 1971 | 1983 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 14.5 | 26.8 | 42.7 | 52.3 | 61.9 | 70.5 | 78.3 | 75.1 | 64.2 | 52.3 | 37.7 | 25.0 | 54.7 |
| Year Lowest Occurred | 1973 | 1974 | 1964 | 1983 | 1975 | 1975 | 1987 | 1968 | 1961 | 1969 | 1979 | 1978 | 1979 |
| Mean Min. Temperature (F) | 18.0 | 25.5 | 34.2 | 42.0 | 50.1 | 57.6 | 64.2 | 62.8 | 52.9 | 40.8 | 30.5 | 21.4 | 41.7 |
| Highest Mean Min. Temperature (F) | 29.4 | 32.4 | 39.8 | 45.8 | 54.7 | 61.6 | 67.4 | 68.9 | 57.5 | 47.4 | 36.9 | 28.2 | 43.6 |
| Year Highest Occurred | 1980 | 1962 | 1967 | 1981 | 1966 | 1961 | 1969 | 1971 | 1969 | 1972 | 1965 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | 2.5 | 14.1 | 29.5 | 38.4 | 46.1 | 52.3 | 60.0 | 58.2 | 48.3 | 36.5 | 25.2 | 13.9 | 38.1 |
| Year Lowest Occurred | 1973 | 1974 | 1962 | 1970 | 1983 | 1975 | 1987 | 1989 | 1987 | 1976 | 1979 | 1976 | 1989 |
| Mean Precipitation (in.) | 0.56 | 0.43 | 0.85 | 0.97 | 0.71 | 0.48 | 0.86 | 0.85 | 0.75 | 1.12 | 0.73 | 0.65 | 8.96 |
| Highest Precipitation (in.) | 2.19 | 1.38 | 3.19 | 2.66 | 1.79 | 2.06 | 4.52 | 2.15 | 2.43 | 3.77 | 2.40 | 1.86 | 16.42 |
| Year Highest Occurred | 1978 | 1987 | 1975 | 1978 | 1980 | 1969 | 1983 | 1961 | 1961 | 1972 | 1983 | 1978 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.03 | 0.00 | 0.01 | 0.00 | 4.71 |
| Year Lowest Occurred | 1972 | 1972 | 1972 | 1982 | 1974 | 1988 | 1970 | 1985 | 1974 | 1964 | 1989 | 1989 | 1964 |
| Heating Degree Days (F) | 1082. | 734. | 521. | 250. | 56. | 0. | 0. | 0. | 17. | 236. | 618. | 980. | 4494. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 97. | 316. | 518. | 456. | 173. | 13. | 0. | 0. | 1586. |