| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.2 | 40.1 | 47.7 | 58.1 | 67.8 | 78.8 | 84.3 | 81.3 | 73.5 | 61.8 | 47.1 | 37.2 | 59.4 |
| Highest Mean Max. Temperature (F) | 45.6 | 47.6 | 56.8 | 64.5 | 74.7 | 84.4 | 86.9 | 85.7 | 79.6 | 69.7 | 54.7 | 47.1 | 61.6 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1989 | 1984 | 1990 | 1978 | 1969 | 1979 | 1965 | 1965 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 26.0 | 34.0 | 40.9 | 50.4 | 63.7 | 73.9 | 81.4 | 74.5 | 66.9 | 52.3 | 39.6 | 28.8 | 57.6 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1970 | 1980 | 1983 | 1986 | 1968 | 1986 | 1969 | 1972 | 1978 | 1987 |
| Mean Temperature (F) | 24.0 | 28.7 | 35.5 | 43.9 | 52.7 | 62.1 | 68.5 | 66.1 | 58.2 | 47.6 | 35.3 | 26.1 | 45.7 |
| Highest Mean Temperature (F) | 32.8 | 36.3 | 42.6 | 49.2 | 57.7 | 67.0 | 71.9 | 71.3 | 62.1 | 53.2 | 41.4 | 35.1 | 47.6 |
| Year Highest Occurred | 1986 | 1970 | 1972 | 1989 | 1984 | 1990 | 1971 | 1969 | 1990 | 1965 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 16.1 | 21.5 | 30.5 | 38.6 | 49.1 | 57.9 | 65.6 | 60.2 | 53.2 | 42.0 | 27.9 | 17.8 | 43.6 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1970 | 1975 | 1967 | 1987 | 1968 | 1961 | 1984 | 1979 | 1978 | 1975 |
| Mean Min. Temperature (F) | 12.8 | 17.2 | 23.4 | 29.7 | 37.5 | 45.3 | 52.6 | 50.9 | 42.9 | 33.3 | 23.4 | 15.0 | 32.0 |
| Highest Mean Min. Temperature (F) | 21.9 | 24.9 | 28.6 | 34.5 | 41.3 | 49.6 | 58.1 | 56.8 | 48.6 | 39.2 | 29.3 | 23.0 | 34.5 |
| Year Highest Occurred | 1986 | 1970 | 1989 | 1962 | 1970 | 1990 | 1971 | 1969 | 1969 | 1963 | 1962 | 1980 | 1970 |
| Lowest Mean Min. Temperature (F) | 6.2 | 8.9 | 18.3 | 24.8 | 34.3 | 40.3 | 49.7 | 45.8 | 38.7 | 27.7 | 15.3 | 6.8 | 29.2 |
| Year Lowest Occurred | 1979 | 1974 | 1969 | 1975 | 1975 | 1967 | 1987 | 1968 | 1973 | 1976 | 1979 | 1978 | 1975 |
| Mean Precipitation (in.) | 1.41 | 1.00 | 1.18 | 0.85 | 0.92 | 0.57 | 1.57 | 1.90 | 1.58 | 1.62 | 1.37 | 1.49 | 15.46 |
| Highest Precipitation (in.) | 6.25 | 3.36 | 3.09 | 2.00 | 2.96 | 2.26 | 3.98 | 4.26 | 4.82 | 7.64 | 4.32 | 4.79 | 21.64 |
| Year Highest Occurred | 1980 | 1976 | 1983 | 1965 | 1979 | 1973 | 1981 | 1982 | 1962 | 1972 | 1978 | 1978 | 1965 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.02 | 0.00 | 0.03 | 0.00 | 0.27 | 0.20 | 0.06 | 0.00 | 0.00 | 0.00 | 6.88 |
| Year Lowest Occurred | 1972 | 1972 | 1972 | 1969 | 1984 | 1980 | 1962 | 1978 | 1979 | 1964 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1271. | 1016. | 915. | 633. | 381. | 127. | 8. | 51. | 212. | 539. | 891. | 1206. | 7250. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 40. | 117. | 85. | 8. | 0. | 0. | 0. | 250. |