| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 32.0 | 38.8 | 48.0 | 58.2 | 66.7 | 75.4 | 79.3 | 77.4 | 71.7 | 61.9 | 46.6 | 34.9 | 57.6 |
| Highest Mean Max. Temperature (F) | 44.4 | 48.8 | 56.5 | 63.9 | 72.3 | 80.2 | 84.2 | 81.9 | 76.0 | 68.5 | 53.4 | 47.9 | 60.6 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1989 | 1974 | 1977 | 1964 | 1969 | 1990 | 1963 | 1966 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 20.1 | 28.6 | 40.5 | 51.2 | 61.8 | 70.5 | 76.5 | 74.3 | 67.8 | 53.0 | 32.9 | 21.5 | 54.3 |
| Year Lowest Occurred | 1979 | 1979 | 1964 | 1983 | 1983 | 1983 | 1986 | 1979 | 1986 | 1984 | 1972 | 1978 | 1975 |
| Mean Temperature (F) | 14.2 | 21.4 | 32.2 | 41.4 | 50.0 | 57.6 | 62.5 | 60.5 | 54.0 | 43.8 | 29.9 | 18.0 | 40.5 |
| Highest Mean Temperature (F) | 24.9 | 30.4 | 39.2 | 46.5 | 54.5 | 60.3 | 66.8 | 65.0 | 57.9 | 49.8 | 35.6 | 28.0 | 43.0 |
| Year Highest Occurred | 1969 | 1970 | 1986 | 1989 | 1984 | 1961 | 1964 | 1969 | 1963 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Temperature (F) | 2.1 | 8.0 | 24.8 | 36.4 | 45.9 | 53.1 | 59.9 | 56.8 | 51.7 | 37.8 | 17.5 | 3.5 | 36.7 |
| Year Lowest Occurred | 1984 | 1979 | 1964 | 1983 | 1978 | 1982 | 1978 | 1976 | 1986 | 1970 | 1972 | 1978 | 1979 |
| Mean Min. Temperature (F) | -3.6 | 3.9 | 16.4 | 24.5 | 33.3 | 39.8 | 45.7 | 43.6 | 36.2 | 25.7 | 13.2 | 1.1 | 23.3 |
| Highest Mean Min. Temperature (F) | 7.8 | 14.3 | 22.5 | 29.4 | 37.3 | 44.0 | 49.6 | 49.2 | 40.4 | 31.1 | 19.0 | 9.8 | 26.6 |
| Year Highest Occurred | 1969 | 1986 | 1990 | 1986 | 1984 | 1986 | 1967 | 1982 | 1982 | 1963 | 1965 | 1962 | 1986 |
| Lowest Mean Min. Temperature (F) | -16.6 | -12.7 | 9.0 | 20.1 | 29.4 | 34.3 | 41.3 | 38.4 | 33.7 | 19.7 | 2.0 | -14.6 | 18.7 |
| Year Lowest Occurred | 1984 | 1979 | 1964 | 1982 | 1978 | 1982 | 1978 | 1976 | 1978 | 1980 | 1972 | 1978 | 1979 |
| Mean Precipitation (in.) | 0.17 | 0.24 | 0.36 | 0.36 | 0.55 | 0.64 | 1.18 | 1.25 | 0.93 | 0.60 | 0.43 | 0.32 | 7.03 |
| Highest Precipitation (in.) | 0.49 | 0.75 | 0.81 | 2.01 | 2.10 | 2.65 | 2.81 | 2.57 | 1.99 | 2.16 | 1.69 | 1.65 | 11.13 |
| Year Highest Occurred | 1987 | 1964 | 1985 | 1990 | 1980 | 1969 | 1989 | 1968 | 1990 | 1961 | 1986 | 1967 | 1990 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.19 | 0.16 | 0.01 | 0.00 | 0.00 | 4.62 |
| Year Lowest Occurred | 1981 | 1970 | 1986 | 1981 | 1974 | 1968 | 1987 | 1962 | 1966 | 1987 | 1989 | 1980 | 1973 |
| Heating Degree Days (F) | 1575. | 1221. | 1017. | 708. | 465. | 226. | 104. | 155. | 330. | 657. | 1053. | 1457. | 8968. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 26. | 15. | 0. | 0. | 0. | 0. | 41. |