| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.1 | 41.2 | 52.4 | 62.6 | 71.4 | 80.5 | 87.7 | 87.7 | 77.7 | 63.8 | 45.3 | 34.3 | 61.5 |
| Highest Mean Max. Temperature (F) | 40.8 | 48.8 | 56.6 | 71.3 | 76.6 | 87.1 | 95.1 | 95.7 | 86.9 | 71.1 | 50.7 | 41.0 | 64.8 |
| Year Highest Occurred | 1967 | 1967 | 1981 | 1977 | 1969 | 1961 | 1985 | 1967 | 1967 | 1988 | 1990 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 21.5 | 32.0 | 47.7 | 57.5 | 64.5 | 72.3 | 79.5 | 79.7 | 69.2 | 59.2 | 32.4 | 25.5 | 57.6 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1975 | 1984 | 1981 | 1983 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 25.1 | 31.5 | 39.8 | 47.6 | 55.5 | 63.5 | 69.0 | 69.1 | 59.7 | 48.3 | 36.2 | 26.9 | 47.7 |
| Highest Mean Temperature (F) | 33.8 | 37.5 | 43.1 | 53.4 | 59.3 | 68.5 | 74.0 | 78.4 | 66.3 | 54.6 | 41.6 | 34.1 | 50.3 |
| Year Highest Occurred | 1981 | 1967 | 1987 | 1987 | 1969 | 1969 | 1985 | 1972 | 1967 | 1988 | 1983 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 13.0 | 21.8 | 34.7 | 40.6 | 50.2 | 56.7 | 64.5 | 64.5 | 54.5 | 43.5 | 22.6 | 18.1 | 43.9 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1982 | 1984 | 1981 | 1983 | 1964 | 1970 | 1984 | 1985 | 1984 | 1985 |
| Mean Min. Temperature (F) | 17.0 | 21.7 | 27.1 | 32.5 | 39.5 | 46.3 | 50.3 | 50.4 | 41.7 | 32.8 | 27.1 | 19.5 | 33.8 |
| Highest Mean Min. Temperature (F) | 27.5 | 29.5 | 32.4 | 38.0 | 43.7 | 50.8 | 55.8 | 62.0 | 47.2 | 38.1 | 34.7 | 27.9 | 35.7 |
| Year Highest Occurred | 1981 | 1961 | 1987 | 1978 | 1972 | 1982 | 1975 | 1972 | 1966 | 1988 | 1983 | 1962 | 1987 |
| Lowest Mean Min. Temperature (F) | 3.7 | 9.2 | 19.8 | 23.3 | 35.7 | 41.0 | 45.4 | 44.8 | 36.2 | 27.7 | 12.7 | 8.6 | 30.2 |
| Year Lowest Occurred | 1979 | 1985 | 1965 | 1982 | 1961 | 1981 | 1963 | 1969 | 1964 | 1984 | 1985 | 1984 | 1985 |
| Mean Precipitation (in.) | 1.24 | 1.11 | 1.12 | 1.03 | 1.28 | 0.87 | 0.58 | 0.69 | 0.69 | 0.84 | 1.70 | 1.90 | 13.05 |
| Highest Precipitation (in.) | 2.81 | 3.26 | 3.90 | 2.81 | 3.48 | 3.21 | 2.36 | 2.30 | 2.60 | 2.05 | 5.35 | 4.85 | 23.56 |
| Year Highest Occurred | 1986 | 1980 | 1983 | 1978 | 1972 | 1984 | 1983 | 1978 | 1986 | 1968 | 1983 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.10 | 0.04 | 0.23 | 0.00 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.21 | 7.92 |
| Year Lowest Occurred | 1963 | 1988 | 1985 | 1977 | 1966 | 1974 | 1988 | 1988 | 1990 | 1978 | 1976 | 1989 | 1976 |
| Heating Degree Days (F) | 1237. | 938. | 781. | 522. | 295. | 112. | 29. | 54. | 204. | 518. | 864. | 1181. | 6735. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 67. | 153. | 181. | 45. | 0. | 0. | 0. | 446. |