| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.4 | 42.3 | 47.9 | 57.2 | 66.9 | 77.2 | 82.1 | 79.6 | 72.3 | 63.0 | 48.7 | 39.2 | 59.5 |
| Highest Mean Max. Temperature (F) | 47.5 | 48.6 | 57.6 | 66.9 | 73.3 | 83.6 | 86.7 | 83.3 | 78.9 | 70.8 | 55.4 | 47.1 | 63.7 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1984 | 1990 | 1989 | 1985 | 1983 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 28.5 | 35.3 | 41.6 | 51.2 | 62.4 | 71.7 | 79.1 | 74.3 | 66.8 | 52.1 | 39.4 | 32.8 | 57.2 |
| Year Lowest Occurred | 1979 | 1966 | 1964 | 1975 | 1980 | 1969 | 1986 | 1968 | 1965 | 1984 | 1972 | 1978 | 1975 |
| Mean Temperature (F) | 19.1 | 24.6 | 31.8 | 39.8 | 48.5 | 57.0 | 63.9 | 62.0 | 54.2 | 44.5 | 32.2 | 22.1 | 41.6 |
| Highest Mean Temperature (F) | 28.2 | 31.0 | 39.1 | 45.4 | 52.9 | 60.8 | 66.7 | 65.9 | 59.2 | 49.2 | 36.2 | 30.1 | 44.2 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1989 | 1984 | 1988 | 1984 | 1983 | 1990 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 13.9 | 17.0 | 25.1 | 33.9 | 45.5 | 53.3 | 61.3 | 58.9 | 50.5 | 39.6 | 25.5 | 14.8 | 38.8 |
| Year Lowest Occurred | 1963 | 1966 | 1964 | 1970 | 1975 | 1975 | 1973 | 1974 | 1965 | 1984 | 1979 | 1978 | 1975 |
| Mean Min. Temperature (F) | 0.7 | 6.9 | 15.6 | 22.4 | 29.9 | 36.8 | 45.6 | 44.5 | 36.1 | 26.0 | 15.7 | 4.9 | 23.8 |
| Highest Mean Min. Temperature (F) | 13.4 | 16.0 | 21.7 | 27.9 | 32.9 | 41.3 | 48.7 | 49.9 | 41.5 | 34.8 | 20.7 | 13.0 | 26.7 |
| Year Highest Occurred | 1980 | 1986 | 1983 | 1990 | 1985 | 1988 | 1981 | 1982 | 1982 | 1972 | 1982 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | -7.9 | -3.0 | 8.5 | 16.3 | 27.0 | 32.1 | 41.1 | 40.1 | 31.7 | 21.1 | 10.0 | -5.1 | 20.3 |
| Year Lowest Occurred | 1984 | 1974 | 1964 | 1970 | 1970 | 1975 | 1987 | 1974 | 1968 | 1975 | 1979 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.69 | 1.28 | 1.59 | 1.19 | 1.13 | 0.84 | 1.88 | 2.54 | 2.19 | 2.10 | 1.70 | 1.81 | 19.94 |
| Highest Precipitation (in.) | 5.34 | 3.99 | 3.57 | 3.75 | 2.50 | 2.80 | 4.13 | 4.97 | 5.68 | 7.80 | 6.84 | 4.93 | 27.09 |
| Year Highest Occurred | 1979 | 1980 | 1985 | 1990 | 1981 | 1969 | 1965 | 1967 | 1970 | 1972 | 1978 | 1965 | 1965 |
| Lowest Precipitation (in.) | 0.05 | 0.05 | 0.12 | 0.00 | 0.02 | 0.00 | 0.18 | 0.29 | 0.21 | 0.00 | 0.00 | 0.04 | 11.32 |
| Year Lowest Occurred | 1986 | 1967 | 1971 | 1989 | 1963 | 1980 | 1980 | 1978 | 1979 | 1964 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1423. | 1131. | 1029. | 756. | 512. | 244. | 64. | 115. | 324. | 636. | 984. | 1330. | 8548. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 30. | 22. | 0. | 0. | 0. | 0. | 52. |