| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.4 | 40.1 | 48.5 | 58.2 | 67.7 | 76.7 | 85.8 | 84.9 | 75.7 | 63.4 | 43.9 | 33.7 | 59.3 |
| Highest Mean Max. Temperature (F) | 38.7 | 50.0 | 55.3 | 67.5 | 74.4 | 84.3 | 92.5 | 91.4 | 85.2 | 74.2 | 50.5 | 40.3 | 62.2 |
| Year Highest Occurred | 1990 | 1963 | 1978 | 1987 | 1966 | 1974 | 1985 | 1981 | 1990 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 24.2 | 28.7 | 41.7 | 48.7 | 59.8 | 70.4 | 81.0 | 76.0 | 67.9 | 56.9 | 31.4 | 18.4 | 56.4 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1980 | 1982 | 1976 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 23.1 | 28.8 | 35.9 | 42.9 | 50.7 | 58.3 | 64.7 | 63.9 | 55.4 | 45.4 | 33.1 | 23.7 | 43.8 |
| Highest Mean Temperature (F) | 30.9 | 38.2 | 41.6 | 48.9 | 54.9 | 64.1 | 70.0 | 68.6 | 61.9 | 53.0 | 37.2 | 31.7 | 45.6 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1985 | 1974 | 1985 | 1961 | 1990 | 1988 | 1981 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 12.1 | 16.0 | 30.7 | 36.7 | 45.6 | 53.8 | 61.6 | 59.6 | 50.1 | 41.4 | 21.4 | 5.7 | 40.1 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1980 | 1963 | 1976 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 12.6 | 17.5 | 23.1 | 27.6 | 33.7 | 39.9 | 43.5 | 42.9 | 35.1 | 27.5 | 22.1 | 13.6 | 28.3 |
| Highest Mean Min. Temperature (F) | 23.6 | 27.6 | 28.6 | 32.8 | 37.9 | 43.8 | 48.3 | 47.6 | 41.3 | 32.4 | 26.1 | 24.7 | 30.3 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1979 | 1979 | 1974 | 1975 | 1961 | 1963 | 1963 | 1963 | 1977 | 1963 |
| Lowest Mean Min. Temperature (F) | -0.1 | 3.3 | 17.0 | 23.8 | 30.3 | 36.0 | 40.7 | 38.4 | 30.6 | 24.1 | 11.4 | -7.1 | 23.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1976 | 1976 | 1976 | 1962 | 1980 | 1972 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.27 | 0.75 | 0.82 | 0.73 | 1.06 | 1.13 | 0.49 | 0.92 | 0.54 | 0.64 | 1.26 | 1.35 | 10.96 |
| Highest Precipitation (in.) | 3.23 | 1.80 | 1.98 | 2.03 | 2.48 | 3.33 | 2.21 | 3.84 | 1.64 | 2.52 | 2.61 | 3.86 | 16.01 |
| Year Highest Occurred | 1965 | 1979 | 1983 | 1983 | 1962 | 1980 | 1982 | 1965 | 1980 | 1962 | 1981 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.19 | 0.01 | 0.06 | 0.03 | 0.19 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.08 | 7.56 |
| Year Lowest Occurred | 1961 | 1988 | 1968 | 1974 | 1966 | 1962 | 1976 | 1969 | 1987 | 1988 | 1969 | 1989 | 1961 |
| Heating Degree Days (F) | 1299. | 1014. | 902. | 663. | 443. | 215. | 74. | 110. | 304. | 608. | 957. | 1280. | 7869. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 65. | 76. | 16. | 0. | 0. | 0. | 171. |