| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.8 | 47.3 | 53.1 | 62.8 | 72.0 | 82.4 | 85.3 | 82.8 | 76.3 | 66.7 | 53.5 | 44.7 | 64.1 |
| Highest Mean Max. Temperature (F) | 53.5 | 53.2 | 64.4 | 74.9 | 79.7 | 88.8 | 89.5 | 86.4 | 80.2 | 73.6 | 59.7 | 53.1 | 68.6 |
| Year Highest Occurred | 1986 | 1970 | 1989 | 1989 | 1984 | 1990 | 1971 | 1962 | 1989 | 1988 | 1967 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 34.4 | 39.5 | 45.0 | 55.7 | 66.6 | 77.2 | 74.6 | 78.4 | 71.5 | 56.5 | 45.3 | 37.5 | 61.3 |
| Year Lowest Occurred | 1979 | 1975 | 1973 | 1964 | 1980 | 1965 | 1979 | 1968 | 1986 | 1984 | 1972 | 1990 | 1979 |
| Mean Temperature (F) | 28.5 | 33.2 | 38.5 | 46.3 | 54.6 | 64.6 | 70.0 | 67.7 | 60.3 | 49.8 | 38.8 | 30.2 | 48.5 |
| Highest Mean Temperature (F) | 37.8 | 37.9 | 47.4 | 55.3 | 61.6 | 71.3 | 73.1 | 69.9 | 64.9 | 55.6 | 43.4 | 37.1 | 51.8 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1984 | 1981 | 1980 | 1969 | 1963 | 1988 | 1962 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 22.2 | 25.7 | 32.4 | 40.4 | 49.8 | 58.8 | 61.5 | 63.8 | 57.1 | 44.6 | 33.3 | 24.1 | 45.3 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1965 | 1979 | 1968 | 1985 | 1970 | 1979 | 1990 | 1975 |
| Mean Min. Temperature (F) | 14.1 | 19.0 | 23.9 | 29.7 | 37.2 | 46.7 | 54.6 | 52.6 | 44.1 | 32.9 | 24.1 | 15.5 | 32.9 |
| Highest Mean Min. Temperature (F) | 22.1 | 25.3 | 30.4 | 35.6 | 43.5 | 57.5 | 58.9 | 55.1 | 51.0 | 38.9 | 28.3 | 25.2 | 36.1 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1984 | 1981 | 1980 | 1982 | 1963 | 1963 | 1962 | 1983 | 1986 |
| Lowest Mean Min. Temperature (F) | 7.9 | 9.8 | 18.0 | 24.1 | 31.8 | 40.3 | 48.4 | 46.9 | 39.4 | 25.4 | 16.2 | 8.1 | 28.5 |
| Year Lowest Occurred | 1964 | 1964 | 1964 | 1974 | 1975 | 1965 | 1979 | 1975 | 1968 | 1975 | 1975 | 1968 | 1975 |
| Mean Precipitation (in.) | 0.66 | 0.71 | 0.92 | 0.61 | 0.37 | 0.41 | 1.89 | 2.14 | 1.39 | 1.26 | 1.01 | 0.91 | 12.28 |
| Highest Precipitation (in.) | 2.10 | 1.70 | 2.02 | 2.66 | 1.67 | 1.83 | 4.36 | 5.87 | 3.36 | 5.54 | 3.27 | 2.70 | 17.81 |
| Year Highest Occurred | 1980 | 1980 | 1973 | 1985 | 1978 | 1972 | 1986 | 1963 | 1964 | 1972 | 1981 | 1965 | 1965 |
| Lowest Precipitation (in.) | 0.03 | 0.03 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.01 | 0.00 | 0.05 | 0.00 | 6.40 |
| Year Lowest Occurred | 1986 | 1967 | 1972 | 1989 | 1974 | 1985 | 1979 | 1974 | 1979 | 1975 | 1980 | 1981 | 1989 |
| Heating Degree Days (F) | 1132. | 890. | 822. | 561. | 327. | 98. | 14. | 12. | 155. | 471. | 786. | 1079. | 6347. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 86. | 169. | 96. | 14. | 0. | 0. | 0. | 365. |