| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 26.6 | 32.3 | 43.9 | 59.1 | 71.2 | 79.3 | 83.6 | 80.9 | 72.3 | 61.5 | 45.2 | 30.5 | 57.2 |
| Highest Mean Max. Temperature (F) | 37.7 | 41.7 | 53.7 | 67.0 | 80.0 | 88.6 | 90.6 | 88.2 | 77.3 | 72.5 | 52.3 | 39.4 | 61.0 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1977 | 1977 | 1988 | 1988 | 1988 | 1978 | 1963 | 1975 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 16.3 | 24.6 | 34.6 | 51.4 | 64.5 | 70.9 | 78.5 | 77.5 | 67.7 | 56.0 | 37.5 | 19.9 | 54.8 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1990 | 1977 | 1965 | 1988 | 1985 | 1983 | 1972 |
| Mean Temperature (F) | 16.6 | 21.5 | 33.5 | 47.1 | 58.3 | 67.0 | 71.5 | 68.9 | 60.6 | 50.1 | 36.2 | 21.6 | 46.1 |
| Highest Mean Temperature (F) | 28.2 | 31.1 | 41.7 | 53.5 | 65.7 | 71.7 | 75.1 | 74.6 | 65.6 | 60.0 | 41.4 | 30.5 | 49.6 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1985 | 1977 | 1988 | 1988 | 1988 | 1978 | 1963 | 1975 | 1965 | 1987 |
| Lowest Mean Temperature (F) | 4.5 | 12.6 | 26.0 | 40.3 | 52.3 | 59.9 | 67.5 | 65.0 | 56.0 | 43.6 | 29.3 | 11.3 | 43.7 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1969 | 1971 | 1967 | 1974 | 1988 | 1976 | 1983 | 1972 |
| Mean Min. Temperature (F) | 6.5 | 10.6 | 23.0 | 35.1 | 45.3 | 54.6 | 59.5 | 56.8 | 48.9 | 38.7 | 27.1 | 12.7 | 34.9 |
| Highest Mean Min. Temperature (F) | 18.6 | 21.8 | 32.2 | 41.8 | 52.4 | 59.5 | 63.1 | 61.9 | 54.3 | 47.5 | 31.6 | 23.3 | 38.2 |
| Year Highest Occurred | 1990 | 1983 | 1973 | 1985 | 1962 | 1971 | 1983 | 1983 | 1990 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | -7.4 | -0.1 | 15.1 | 29.2 | 39.1 | 48.9 | 55.2 | 52.1 | 43.2 | 31.2 | 17.9 | -0.4 | 32.1 |
| Year Lowest Occurred | 1977 | 1978 | 1975 | 1975 | 1967 | 1982 | 1971 | 1986 | 1974 | 1988 | 1976 | 1985 | 1976 |
| Mean Precipitation (in.) | 1.02 | 1.15 | 2.18 | 3.05 | 3.26 | 3.87 | 3.82 | 3.92 | 4.14 | 2.18 | 2.15 | 1.51 | 32.25 |
| Highest Precipitation (in.) | 2.57 | 3.23 | 4.57 | 7.92 | 7.84 | 8.88 | 7.76 | 11.79 | 12.87 | 4.93 | 5.50 | 3.11 | 47.07 |
| Year Highest Occurred | 1988 | 1971 | 1973 | 1973 | 1970 | 1990 | 1986 | 1980 | 1965 | 1961 | 1985 | 1968 | 1965 |
| Lowest Precipitation (in.) | 0.04 | 0.05 | 0.19 | 1.33 | 0.40 | 0.93 | 1.38 | 0.08 | 0.13 | 0.11 | 0.10 | 0.11 | 21.11 |
| Year Lowest Occurred | 1981 | 1982 | 1978 | 1989 | 1981 | 1987 | 1967 | 1969 | 1979 | 1964 | 1976 | 1989 | 1964 |
| Heating Degree Days (F) | 1500. | 1218. | 977. | 537. | 246. | 48. | 8. | 24. | 149. | 467. | 864. | 1345. | 7383. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 38. | 108. | 209. | 145. | 17. | 5. | 0. | 0. | 522. |