| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.1 | 37.4 | 48.0 | 59.4 | 68.7 | 78.2 | 84.8 | 82.6 | 73.6 | 61.4 | 44.7 | 32.2 | 58.4 |
| Highest Mean Max. Temperature (F) | 41.8 | 47.6 | 58.3 | 66.2 | 76.4 | 85.7 | 88.6 | 86.2 | 81.1 | 68.8 | 50.6 | 43.9 | 61.7 |
| Year Highest Occurred | 1981 | 1963 | 1972 | 1977 | 1969 | 1977 | 1989 | 1969 | 1979 | 1963 | 1962 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 19.2 | 26.8 | 39.6 | 51.5 | 62.3 | 73.0 | 80.8 | 76.6 | 65.0 | 53.2 | 35.9 | 21.8 | 54.9 |
| Year Lowest Occurred | 1973 | 1973 | 1962 | 1983 | 1983 | 1964 | 1965 | 1968 | 1965 | 1984 | 1971 | 1978 | 1984 |
| Mean Temperature (F) | 18.2 | 24.6 | 35.0 | 44.9 | 54.1 | 62.9 | 69.6 | 67.4 | 58.6 | 47.3 | 32.9 | 21.0 | 44.7 |
| Highest Mean Temperature (F) | 29.1 | 34.8 | 43.0 | 51.2 | 59.2 | 68.7 | 73.4 | 70.6 | 64.4 | 54.1 | 39.7 | 32.0 | 47.6 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1969 | 1977 | 1989 | 1983 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 6.3 | 12.8 | 26.1 | 38.0 | 49.7 | 58.3 | 66.8 | 62.1 | 51.2 | 40.6 | 25.3 | 9.3 | 41.5 |
| Year Lowest Occurred | 1973 | 1973 | 1962 | 1970 | 1983 | 1964 | 1965 | 1968 | 1965 | 1969 | 1971 | 1978 | 1973 |
| Mean Min. Temperature (F) | 6.3 | 11.7 | 21.9 | 30.4 | 39.4 | 47.5 | 54.3 | 52.3 | 43.5 | 33.1 | 21.2 | 9.8 | 31.0 |
| Highest Mean Min. Temperature (F) | 16.3 | 22.2 | 29.9 | 37.1 | 43.0 | 53.7 | 59.0 | 57.7 | 49.9 | 40.0 | 28.8 | 20.1 | 34.4 |
| Year Highest Occurred | 1981 | 1986 | 1986 | 1990 | 1987 | 1988 | 1985 | 1983 | 1990 | 1988 | 1965 | 1980 | 1987 |
| Lowest Mean Min. Temperature (F) | -6.7 | -1.3 | 12.6 | 22.6 | 36.4 | 43.6 | 51.5 | 47.6 | 37.4 | 27.2 | 13.9 | -3.3 | 27.8 |
| Year Lowest Occurred | 1973 | 1973 | 1962 | 1970 | 1975 | 1964 | 1962 | 1968 | 1965 | 1970 | 1964 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.53 | 0.45 | 0.62 | 0.73 | 1.04 | 0.73 | 0.67 | 0.71 | 0.90 | 1.02 | 0.61 | 0.55 | 8.56 |
| Highest Precipitation (in.) | 2.16 | 1.38 | 1.77 | 1.86 | 2.49 | 2.84 | 2.51 | 1.60 | 2.48 | 2.95 | 2.22 | 1.61 | 14.69 |
| Year Highest Occurred | 1980 | 1962 | 1975 | 1968 | 1983 | 1965 | 1987 | 1984 | 1982 | 1972 | 1978 | 1971 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 4.24 |
| Year Lowest Occurred | 1972 | 1988 | 1974 | 1989 | 1974 | 1981 | 1969 | 1985 | 1987 | 1964 | 1986 | 1989 | 1974 |
| Heating Degree Days (F) | 1451. | 1131. | 930. | 603. | 338. | 122. | 8. | 29. | 221. | 549. | 963. | 1364. | 7709. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 59. | 151. | 103. | 29. | 0. | 0. | 0. | 342. |