| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.2 | 47.4 | 52.7 | 58.5 | 66.0 | 74.9 | 82.6 | 82.0 | 73.6 | 63.6 | 48.9 | 41.8 | 61.1 |
| Highest Mean Max. Temperature (F) | 46.7 | 53.6 | 58.3 | 66.3 | 70.7 | 84.7 | 88.6 | 89.1 | 81.0 | 72.9 | 53.8 | 48.9 | 63.1 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1971 | 1974 | 1988 | 1989 | 1976 | 1961 |
| Lowest Mean Max. Temperature (F) | 25.9 | 36.3 | 47.7 | 51.1 | 59.2 | 66.9 | 74.3 | 75.5 | 65.2 | 56.1 | 37.6 | 30.7 | 57.8 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1983 | 1982 |
| Mean Temperature (F) | 31.8 | 36.5 | 39.9 | 44.2 | 50.8 | 58.8 | 64.3 | 64.0 | 56.3 | 48.3 | 38.7 | 32.4 | 47.2 |
| Highest Mean Temperature (F) | 37.6 | 42.5 | 44.8 | 49.7 | 54.9 | 64.7 | 69.1 | 69.5 | 61.1 | 55.1 | 42.9 | 38.9 | 48.4 |
| Year Highest Occurred | 1983 | 1963 | 1978 | 1990 | 1969 | 1961 | 1985 | 1977 | 1990 | 1988 | 1976 | 1973 | 1988 |
| Lowest Mean Temperature (F) | 17.2 | 24.9 | 36.5 | 39.5 | 47.2 | 53.4 | 59.1 | 58.6 | 51.1 | 43.0 | 27.0 | 23.0 | 44.8 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1967 | 1977 | 1980 | 1963 | 1980 | 1986 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 22.3 | 25.6 | 27.1 | 29.8 | 35.6 | 42.6 | 46.1 | 45.9 | 39.0 | 33.0 | 28.4 | 23.0 | 33.2 |
| Highest Mean Min. Temperature (F) | 28.7 | 31.4 | 33.0 | 34.5 | 39.5 | 48.0 | 51.2 | 51.8 | 43.1 | 38.4 | 32.4 | 32.1 | 34.5 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1989 | 1987 | 1969 | 1975 | 1977 | 1979 | 1979 | 1976 | 1973 | 1973 |
| Lowest Mean Min. Temperature (F) | 8.4 | 13.4 | 21.4 | 26.2 | 30.7 | 38.2 | 40.1 | 40.2 | 34.7 | 29.3 | 16.3 | 13.7 | 30.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1986 | 1964 | 1962 | 1963 | 1980 | 1965 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.06 | 0.67 | 0.77 | 0.53 | 0.66 | 0.80 | 0.46 | 0.52 | 0.39 | 0.58 | 1.09 | 1.20 | 8.73 |
| Highest Precipitation (in.) | 2.65 | 2.22 | 1.77 | 1.70 | 1.63 | 3.66 | 3.82 | 2.57 | 1.45 | 2.06 | 3.05 | 5.51 | 13.76 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1978 | 1962 | 1969 | 1987 | 1976 | 1982 | 1962 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 4.99 |
| Year Lowest Occurred | 1968 | 1967 | 1965 | 1986 | 1964 | 1973 | 1988 | 1981 | 1987 | 1988 | 1969 | 1976 | 1967 |
| Heating Degree Days (F) | 1029. | 798. | 778. | 624. | 440. | 210. | 101. | 105. | 274. | 518. | 789. | 1011. | 6677. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 24. | 80. | 74. | 13. | 0. | 0. | 0. | 191. |