| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.8 | 46.8 | 53.9 | 60.6 | 69.5 | 78.5 | 86.1 | 85.4 | 76.0 | 64.0 | 48.5 | 40.5 | 62.5 |
| Highest Mean Max. Temperature (F) | 49.2 | 60.5 | 61.5 | 67.3 | 75.8 | 85.3 | 92.5 | 95.6 | 83.5 | 71.3 | 54.7 | 46.3 | 66.2 |
| Year Highest Occurred | 1983 | 1965 | 1965 | 1977 | 1972 | 1986 | 1985 | 1967 | 1967 | 1988 | 1990 | 1976 | 1967 |
| Lowest Mean Max. Temperature (F) | 23.1 | 35.2 | 49.0 | 54.8 | 63.4 | 72.1 | 80.4 | 78.2 | 68.8 | 59.0 | 33.9 | 28.0 | 59.5 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1975 | 1962 | 1971 | 1963 | 1989 | 1977 | 1982 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 33.2 | 39.0 | 44.4 | 49.3 | 56.7 | 64.9 | 71.5 | 71.0 | 62.8 | 52.6 | 40.8 | 33.7 | 51.7 |
| Highest Mean Temperature (F) | 41.6 | 47.0 | 49.2 | 53.9 | 61.0 | 69.2 | 76.7 | 80.9 | 70.8 | 57.8 | 45.7 | 39.5 | 55.3 |
| Year Highest Occurred | 1967 | 1965 | 1986 | 1985 | 1979 | 1961 | 1985 | 1967 | 1967 | 1965 | 1965 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 16.2 | 26.6 | 40.5 | 44.4 | 52.2 | 59.4 | 66.1 | 64.0 | 58.2 | 47.5 | 25.5 | 20.9 | 48.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1971 | 1989 | 1989 | 1977 | 1990 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 26.5 | 31.1 | 34.8 | 38.0 | 43.9 | 51.3 | 56.8 | 56.6 | 49.6 | 41.2 | 33.0 | 26.9 | 40.8 |
| Highest Mean Min. Temperature (F) | 34.2 | 35.8 | 39.6 | 42.3 | 48.3 | 55.9 | 61.3 | 66.1 | 58.0 | 46.0 | 37.1 | 33.1 | 44.3 |
| Year Highest Occurred | 1967 | 1961 | 1987 | 1985 | 1979 | 1967 | 1970 | 1967 | 1967 | 1965 | 1965 | 1974 | 1967 |
| Lowest Mean Min. Temperature (F) | 9.2 | 18.0 | 31.5 | 31.4 | 39.3 | 46.7 | 50.3 | 49.8 | 43.5 | 33.5 | 17.0 | 13.0 | 37.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1988 | 1971 | 1989 | 1989 | 1989 | 1990 | 1985 | 1985 | 1989 |
| Mean Precipitation (in.) | 1.35 | 1.02 | 0.95 | 0.91 | 0.83 | 0.64 | 0.25 | 0.48 | 0.48 | 0.67 | 1.58 | 1.56 | 10.72 |
| Highest Precipitation (in.) | 4.10 | 4.32 | 2.52 | 3.28 | 3.24 | 2.09 | 1.28 | 1.70 | 1.69 | 2.50 | 4.33 | 6.85 | 15.06 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1988 | 1962 | 1972 | 1966 | 1976 | 1982 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.10 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.33 | 6.35 |
| Year Lowest Occurred | 1984 | 1967 | 1968 | 1966 | 1964 | 1989 | 1988 | 1988 | 1990 | 1988 | 1987 | 1988 | 1967 |
| Heating Degree Days (F) | 986. | 728. | 639. | 471. | 267. | 93. | 20. | 45. | 140. | 384. | 726. | 970. | 5469. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 90. | 222. | 231. | 74. | 0. | 0. | 0. | 626. |