| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.4 | 40.5 | 46.9 | 54.2 | 63.1 | 72.1 | 80.6 | 80.6 | 71.0 | 59.5 | 43.7 | 36.1 | 57.0 |
| Highest Mean Max. Temperature (F) | 42.2 | 49.3 | 52.4 | 63.0 | 68.3 | 79.0 | 87.7 | 88.2 | 79.3 | 67.6 | 49.5 | 43.9 | 59.2 |
| Year Highest Occurred | 1971 | 1963 | 1986 | 1977 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1969 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 25.5 | 29.1 | 40.7 | 47.6 | 57.7 | 64.5 | 73.9 | 73.8 | 63.5 | 53.5 | 30.6 | 26.6 | 53.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1974 | 1980 | 1983 | 1968 | 1985 | 1984 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 28.6 | 33.3 | 38.3 | 44.0 | 51.4 | 59.4 | 66.5 | 66.8 | 58.7 | 48.7 | 36.3 | 29.3 | 46.8 |
| Highest Mean Temperature (F) | 35.9 | 39.9 | 43.8 | 49.8 | 56.1 | 65.2 | 73.6 | 73.2 | 65.7 | 57.0 | 40.8 | 36.8 | 49.3 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1967 | 1967 | 1988 | 1989 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 17.7 | 23.2 | 33.2 | 38.8 | 47.0 | 53.8 | 60.9 | 61.4 | 53.1 | 43.6 | 23.7 | 20.6 | 44.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1980 | 1963 | 1975 | 1971 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 21.7 | 26.1 | 29.6 | 33.7 | 39.7 | 46.6 | 52.4 | 53.0 | 46.3 | 37.8 | 28.8 | 22.5 | 36.5 |
| Highest Mean Min. Temperature (F) | 29.7 | 30.8 | 35.1 | 39.1 | 44.8 | 52.2 | 59.4 | 59.5 | 52.0 | 46.3 | 33.4 | 29.7 | 39.5 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1989 | 1987 | 1986 | 1985 | 1961 | 1987 | 1988 | 1989 | 1980 | 1987 |
| Lowest Mean Min. Temperature (F) | 9.8 | 17.2 | 23.5 | 29.2 | 36.0 | 42.0 | 45.6 | 46.5 | 38.7 | 33.6 | 16.8 | 13.3 | 34.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1963 | 1964 | 1970 | 1984 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 2.25 | 1.51 | 1.23 | 0.79 | 0.78 | 0.63 | 0.31 | 0.44 | 0.52 | 0.80 | 2.20 | 2.56 | 14.02 |
| Highest Precipitation (in.) | 6.02 | 4.87 | 3.65 | 2.11 | 1.73 | 1.83 | 2.20 | 2.14 | 2.08 | 2.01 | 5.48 | 8.82 | 21.70 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1963 | 1977 | 1971 | 1978 | 1968 | 1971 | 1962 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.16 | 0.03 | 0.06 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.01 | 0.10 | 0.26 | 6.93 |
| Year Lowest Occurred | 1977 | 1964 | 1981 | 1977 | 1966 | 1973 | 1984 | 1988 | 1990 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 1128. | 888. | 828. | 630. | 422. | 204. | 73. | 88. | 232. | 505. | 861. | 1107. | 6966. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 36. | 119. | 144. | 43. | 0. | 0. | 0. | 342. |