| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.6 | 44.2 | 53.4 | 62.3 | 71.8 | 80.9 | 88.6 | 87.6 | 77.8 | 64.0 | 45.9 | 35.9 | 62.3 |
| Highest Mean Max. Temperature (F) | 43.3 | 50.1 | 57.7 | 70.4 | 77.2 | 88.8 | 97.8 | 95.5 | 86.8 | 71.3 | 50.8 | 42.4 | 65.0 |
| Year Highest Occurred | 1967 | 1967 | 1968 | 1977 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1981 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 20.6 | 32.5 | 47.6 | 56.3 | 65.4 | 74.4 | 82.1 | 81.8 | 70.0 | 59.4 | 30.0 | 22.5 | 59.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1981 | 1986 | 1968 | 1986 | 1990 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.2 | 36.1 | 42.4 | 48.6 | 56.3 | 64.3 | 70.6 | 69.8 | 61.3 | 50.1 | 38.1 | 29.8 | 49.7 |
| Highest Mean Temperature (F) | 37.3 | 41.3 | 46.6 | 54.1 | 60.0 | 69.9 | 76.7 | 75.8 | 68.3 | 56.8 | 42.9 | 36.5 | 51.8 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1987 | 1987 | 1961 | 1985 | 1961 | 1967 | 1988 | 1965 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 12.3 | 24.7 | 38.2 | 44.3 | 52.3 | 59.0 | 66.2 | 64.4 | 56.3 | 46.9 | 22.5 | 17.7 | 46.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1984 | 1981 | 1986 | 1980 | 1971 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.8 | 28.0 | 31.3 | 34.9 | 40.8 | 47.6 | 52.5 | 52.0 | 44.7 | 36.1 | 30.3 | 23.7 | 37.1 |
| Highest Mean Min. Temperature (F) | 31.6 | 34.1 | 37.0 | 40.0 | 44.9 | 52.8 | 57.4 | 56.9 | 49.8 | 42.3 | 35.7 | 30.7 | 38.9 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1987 | 1969 | 1990 | 1961 | 1963 | 1988 | 1983 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 4.0 | 16.8 | 26.5 | 31.0 | 37.8 | 41.2 | 48.8 | 46.6 | 40.1 | 31.6 | 15.0 | 12.8 | 33.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1978 | 1976 | 1981 | 1980 | 1972 | 1978 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.92 | 0.80 | 0.91 | 0.78 | 0.81 | 0.57 | 0.32 | 0.44 | 0.49 | 0.71 | 1.32 | 1.30 | 9.37 |
| Highest Precipitation (in.) | 2.89 | 2.27 | 2.15 | 1.64 | 2.68 | 1.54 | 1.05 | 2.14 | 1.60 | 2.16 | 3.35 | 3.02 | 13.59 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1979 | 1980 | 1964 | 1975 | 1990 | 1977 | 1990 | 1973 | 1973 | 1980 |
| Lowest Precipitation (in.) | 0.21 | 0.01 | 0.03 | 0.08 | 0.02 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.30 | 5.73 |
| Year Lowest Occurred | 1977 | 1988 | 1965 | 1977 | 1966 | 1989 | 1985 | 1988 | 1990 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1110. | 809. | 701. | 492. | 274. | 104. | 18. | 40. | 173. | 462. | 807. | 1091. | 6081. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 83. | 192. | 189. | 62. | 0. | 0. | 0. | 526. |