| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.1 | 44.4 | 52.3 | 61.8 | 71.9 | 82.7 | 88.0 | 85.4 | 77.1 | 65.4 | 49.9 | 39.6 | 63.1 |
| Highest Mean Max. Temperature (F) | 47.5 | 51.3 | 60.7 | 69.6 | 77.2 | 90.0 | 93.3 | 89.7 | 82.3 | 73.0 | 54.9 | 49.4 | 66.7 |
| Year Highest Occurred | 1981 | 1970 | 1989 | 1981 | 1969 | 1990 | 1989 | 1985 | 1983 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 29.2 | 38.3 | 46.1 | 54.0 | 66.4 | 76.6 | 83.4 | 79.8 | 69.8 | 54.7 | 40.4 | 30.9 | 60.6 |
| Year Lowest Occurred | 1979 | 1974 | 1964 | 1970 | 1980 | 1965 | 1965 | 1968 | 1961 | 1969 | 1972 | 1978 | 1975 |
| Mean Temperature (F) | 26.4 | 32.4 | 39.5 | 47.5 | 56.6 | 66.2 | 72.1 | 69.8 | 61.7 | 50.7 | 38.0 | 28.5 | 49.1 |
| Highest Mean Temperature (F) | 35.1 | 37.6 | 45.8 | 53.9 | 61.5 | 70.9 | 74.6 | 72.8 | 65.6 | 56.3 | 42.2 | 38.2 | 51.9 |
| Year Highest Occurred | 1981 | 1970 | 1989 | 1981 | 1969 | 1977 | 1989 | 1983 | 1990 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 18.0 | 24.7 | 33.5 | 41.3 | 52.7 | 61.6 | 69.3 | 65.0 | 56.2 | 43.5 | 32.1 | 20.4 | 47.0 |
| Year Lowest Occurred | 1963 | 1974 | 1964 | 1970 | 1983 | 1965 | 1962 | 1968 | 1961 | 1969 | 1972 | 1978 | 1975 |
| Mean Min. Temperature (F) | 14.7 | 20.4 | 26.6 | 33.2 | 41.2 | 49.6 | 56.1 | 54.3 | 46.2 | 36.0 | 26.0 | 17.4 | 35.1 |
| Highest Mean Min. Temperature (F) | 22.7 | 26.6 | 31.9 | 38.2 | 45.7 | 55.0 | 58.0 | 57.2 | 50.7 | 40.9 | 30.1 | 26.9 | 37.9 |
| Year Highest Occurred | 1981 | 1986 | 1978 | 1981 | 1969 | 1977 | 1977 | 1977 | 1981 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 6.1 | 11.1 | 20.8 | 28.5 | 38.1 | 46.5 | 53.3 | 50.2 | 42.3 | 31.6 | 21.5 | 9.0 | 33.4 |
| Year Lowest Occurred | 1963 | 1974 | 1964 | 1970 | 1983 | 1975 | 1987 | 1968 | 1971 | 1970 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 0.88 | 0.79 | 1.22 | 0.91 | 1.14 | 0.75 | 0.96 | 1.19 | 1.34 | 1.46 | 1.13 | 1.06 | 12.83 |
| Highest Precipitation (in.) | 2.23 | 2.50 | 3.17 | 2.79 | 3.05 | 2.99 | 2.52 | 2.91 | 4.18 | 4.92 | 2.72 | 3.26 | 19.99 |
| Year Highest Occurred | 1978 | 1980 | 1985 | 1985 | 1980 | 1969 | 1989 | 1964 | 1970 | 1972 | 1986 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.08 | 0.16 | 0.00 | 0.00 | 0.17 | 0.05 | 0.03 | 0.00 | 0.05 | 0.05 | 7.50 |
| Year Lowest Occurred | 1972 | 1972 | 1972 | 1969 | 1974 | 1971 | 1972 | 1985 | 1979 | 1967 | 1989 | 1976 | 1977 |
| Heating Degree Days (F) | 1197. | 913. | 791. | 525. | 267. | 72. | 0. | 11. | 137. | 443. | 810. | 1132. | 6298. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 108. | 220. | 160. | 38. | 0. | 0. | 0. | 533. |