| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.6 | 47.8 | 56.5 | 63.7 | 72.1 | 81.3 | 89.4 | 88.5 | 78.7 | 65.8 | 50.5 | 41.6 | 64.7 |
| Highest Mean Max. Temperature (F) | 52.0 | 54.2 | 60.5 | 70.2 | 76.9 | 88.2 | 97.4 | 96.6 | 86.4 | 72.5 | 55.8 | 48.8 | 68.0 |
| Year Highest Occurred | 1967 | 1961 | 1968 | 1977 | 1987 | 1961 | 1985 | 1967 | 1967 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 22.4 | 32.0 | 51.8 | 58.0 | 66.0 | 75.0 | 84.9 | 82.4 | 72.6 | 61.9 | 36.2 | 26.2 | 61.7 |
| Year Lowest Occurred | 1979 | 1989 | 1989 | 1967 | 1962 | 1971 | 1963 | 1976 | 1985 | 1982 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 33.2 | 38.7 | 44.9 | 50.6 | 57.6 | 65.4 | 71.0 | 70.0 | 61.2 | 50.6 | 41.4 | 34.1 | 51.6 |
| Highest Mean Temperature (F) | 43.7 | 45.1 | 48.4 | 54.7 | 61.7 | 70.5 | 75.0 | 74.8 | 67.9 | 55.6 | 46.4 | 41.1 | 54.1 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1987 | 1961 | 1985 | 1961 | 1967 | 1988 | 1983 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 15.1 | 23.4 | 41.0 | 46.1 | 53.9 | 60.6 | 67.4 | 65.5 | 56.7 | 47.8 | 27.9 | 20.4 | 48.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1962 | 1976 | 1963 | 1980 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 25.7 | 29.5 | 33.3 | 37.5 | 43.1 | 49.5 | 52.6 | 51.5 | 43.6 | 35.2 | 32.2 | 26.5 | 38.4 |
| Highest Mean Min. Temperature (F) | 35.3 | 36.0 | 38.0 | 40.5 | 46.4 | 53.8 | 56.6 | 55.8 | 49.4 | 40.3 | 37.6 | 33.3 | 40.4 |
| Year Highest Occurred | 1967 | 1961 | 1984 | 1985 | 1987 | 1970 | 1975 | 1977 | 1967 | 1975 | 1983 | 1966 | 1986 |
| Lowest Mean Min. Temperature (F) | 7.7 | 14.8 | 27.5 | 32.8 | 40.3 | 44.2 | 49.9 | 46.6 | 38.1 | 29.7 | 19.6 | 14.6 | 34.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1976 | 1976 | 1963 | 1980 | 1983 | 1978 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.59 | 1.21 | 1.38 | 1.17 | 1.16 | 0.82 | 0.45 | 0.64 | 0.68 | 1.03 | 1.80 | 1.82 | 13.75 |
| Highest Precipitation (in.) | 4.92 | 3.10 | 2.87 | 3.12 | 3.75 | 2.86 | 1.66 | 3.50 | 1.69 | 2.58 | 4.38 | 4.98 | 18.48 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1988 | 1962 | 1971 | 1966 | 1977 | 1982 | 1982 | 1973 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.43 | 0.00 | 0.16 | 0.10 | 0.06 | 0.13 | 0.00 | 0.00 | 0.00 | 0.01 | 0.48 | 0.49 | 7.78 |
| Year Lowest Occurred | 1977 | 1964 | 1965 | 1977 | 1964 | 1986 | 1962 | 1988 | 1975 | 1987 | 1969 | 1970 | 1987 |
| Heating Degree Days (F) | 986. | 736. | 623. | 432. | 233. | 74. | 7. | 26. | 162. | 446. | 708. | 958. | 5391. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 86. | 193. | 181. | 48. | 0. | 0. | 0. | 508. |