| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.5 | 43.6 | 49.8 | 58.5 | 68.1 | 78.6 | 84.6 | 81.6 | 74.0 | 63.4 | 49.5 | 40.1 | 60.9 |
| Highest Mean Max. Temperature (F) | 47.5 | 49.9 | 60.2 | 65.7 | 75.5 | 85.2 | 87.7 | 84.8 | 79.9 | 70.4 | 55.2 | 50.9 | 63.1 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1974 | 1971 | 1969 | 1979 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 29.8 | 35.8 | 43.0 | 50.0 | 62.7 | 71.7 | 80.4 | 74.7 | 66.6 | 56.2 | 43.1 | 33.2 | 58.7 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1975 | 1980 | 1965 | 1987 | 1968 | 1986 | 1984 | 1972 | 1971 | 1982 |
| Mean Temperature (F) | 27.1 | 32.2 | 37.9 | 45.7 | 54.7 | 64.8 | 71.3 | 68.9 | 61.2 | 50.9 | 38.0 | 29.1 | 48.5 |
| Highest Mean Temperature (F) | 35.8 | 38.1 | 46.6 | 52.9 | 60.4 | 70.7 | 74.0 | 72.1 | 67.0 | 58.1 | 42.6 | 38.6 | 50.5 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1974 | 1989 | 1969 | 1979 | 1988 | 1962 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 18.9 | 25.2 | 32.4 | 38.0 | 49.9 | 59.5 | 67.6 | 63.0 | 54.9 | 44.4 | 33.1 | 22.0 | 46.6 |
| Year Lowest Occurred | 1979 | 1966 | 1964 | 1975 | 1977 | 1965 | 1987 | 1968 | 1961 | 1969 | 1979 | 1978 | 1975 |
| Mean Min. Temperature (F) | 15.8 | 20.7 | 26.1 | 32.8 | 41.2 | 51.0 | 57.9 | 56.0 | 48.3 | 38.4 | 26.5 | 18.0 | 36.1 |
| Highest Mean Min. Temperature (F) | 24.0 | 26.2 | 32.9 | 40.1 | 45.2 | 56.1 | 60.7 | 59.4 | 54.2 | 45.8 | 32.5 | 26.2 | 38.1 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1984 | 1974 | 1989 | 1969 | 1990 | 1988 | 1966 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 8.0 | 13.9 | 20.6 | 26.0 | 37.0 | 46.7 | 54.7 | 51.3 | 41.8 | 32.0 | 21.0 | 10.7 | 34.0 |
| Year Lowest Occurred | 1979 | 1974 | 1964 | 1975 | 1977 | 1967 | 1987 | 1968 | 1961 | 1969 | 1979 | 1978 | 1971 |
| Mean Precipitation (in.) | 0.83 | 0.73 | 1.01 | 0.60 | 0.80 | 0.41 | 1.16 | 1.52 | 1.11 | 1.00 | 0.78 | 0.74 | 10.69 |
| Highest Precipitation (in.) | 3.04 | 2.73 | 2.84 | 2.33 | 2.50 | 1.72 | 5.30 | 3.28 | 3.76 | 5.62 | 4.76 | 2.71 | 18.36 |
| Year Highest Occurred | 1969 | 1980 | 1979 | 1965 | 1987 | 1969 | 1969 | 1963 | 1962 | 1972 | 1978 | 1965 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.05 | 0.04 | 0.00 | 0.00 | 0.00 | 5.87 |
| Year Lowest Occurred | 1972 | 1977 | 1987 | 1989 | 1984 | 1980 | 1979 | 1985 | 1989 | 1979 | 1988 | 1989 | 1977 |
| Heating Degree Days (F) | 1175. | 918. | 840. | 579. | 326. | 95. | 0. | 12. | 152. | 445. | 810. | 1113. | 6465. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 89. | 198. | 133. | 38. | 7. | 0. | 0. | 471. |