| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.0 | 43.9 | 50.4 | 56.9 | 65.5 | 74.6 | 83.5 | 83.0 | 73.8 | 62.4 | 47.0 | 38.9 | 59.8 |
| Highest Mean Max. Temperature (F) | 45.1 | 50.5 | 55.8 | 65.2 | 70.9 | 82.9 | 90.6 | 89.7 | 82.4 | 73.0 | 53.5 | 46.1 | 62.8 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1990 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1989 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 24.5 | 31.6 | 44.8 | 50.2 | 57.7 | 67.5 | 76.0 | 75.6 | 67.3 | 56.4 | 35.4 | 26.4 | 57.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1967 | 1962 | 1980 | 1963 | 1976 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 30.6 | 35.4 | 40.3 | 45.0 | 52.1 | 60.3 | 67.5 | 67.4 | 59.2 | 49.7 | 38.3 | 31.2 | 48.1 |
| Highest Mean Temperature (F) | 37.5 | 41.7 | 46.2 | 51.7 | 57.2 | 67.1 | 73.6 | 73.5 | 66.2 | 58.3 | 43.9 | 36.4 | 50.3 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1990 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1989 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 15.2 | 23.0 | 35.2 | 38.3 | 47.7 | 54.2 | 62.1 | 62.6 | 53.7 | 45.7 | 26.4 | 19.9 | 45.7 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1962 | 1980 | 1963 | 1976 | 1970 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.0 | 26.8 | 30.0 | 33.1 | 38.6 | 46.0 | 51.4 | 51.9 | 44.5 | 36.9 | 29.5 | 23.5 | 36.3 |
| Highest Mean Min. Temperature (F) | 30.5 | 32.9 | 36.6 | 38.2 | 43.8 | 52.0 | 56.6 | 58.6 | 49.9 | 43.6 | 34.5 | 30.2 | 38.8 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1990 | 1969 | 1961 | 1985 | 1961 | 1990 | 1988 | 1965 | 1966 | 1961 |
| Lowest Mean Min. Temperature (F) | 5.9 | 14.3 | 24.5 | 25.1 | 33.5 | 40.1 | 47.6 | 46.8 | 39.7 | 33.8 | 17.3 | 13.3 | 33.9 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1975 | 1975 | 1986 | 1980 | 1970 | 1972 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.35 | 1.07 | 1.02 | 0.96 | 0.92 | 0.72 | 0.46 | 0.58 | 0.61 | 0.78 | 1.65 | 1.71 | 11.83 |
| Highest Precipitation (in.) | 3.89 | 3.19 | 2.42 | 2.97 | 2.56 | 1.94 | 2.90 | 2.60 | 1.89 | 2.63 | 3.42 | 6.21 | 18.29 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1963 | 1962 | 1984 | 1978 | 1976 | 1963 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.26 | 0.04 | 0.13 | 0.01 | 0.08 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.08 | 6.06 |
| Year Lowest Occurred | 1984 | 1967 | 1968 | 1966 | 1964 | 1974 | 1988 | 1988 | 1975 | 1988 | 1969 | 1976 | 1967 |
| Heating Degree Days (F) | 1066. | 829. | 766. | 600. | 400. | 188. | 52. | 67. | 213. | 474. | 801. | 1048. | 6504. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 47. | 129. | 141. | 39. | 0. | 0. | 0. | 356. |