| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.9 | 49.7 | 58.1 | 67.7 | 76.7 | 86.8 | 92.1 | 89.7 | 82.1 | 70.4 | 55.5 | 43.4 | 67.8 |
| Highest Mean Max. Temperature (F) | 52.5 | 57.1 | 68.1 | 74.3 | 83.4 | 93.3 | 97.0 | 93.8 | 87.8 | 77.9 | 63.7 | 53.7 | 70.1 |
| Year Highest Occurred | 1981 | 1970 | 1972 | 1981 | 1963 | 1961 | 1971 | 1985 | 1979 | 1964 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 28.6 | 39.0 | 52.3 | 60.6 | 70.4 | 79.6 | 88.2 | 82.6 | 75.5 | 60.5 | 47.6 | 35.2 | 64.9 |
| Year Lowest Occurred | 1973 | 1974 | 1970 | 1983 | 1980 | 1967 | 1973 | 1968 | 1965 | 1969 | 1979 | 1967 | 1973 |
| Mean Temperature (F) | 28.5 | 36.6 | 44.4 | 52.5 | 61.2 | 70.6 | 76.7 | 74.4 | 66.2 | 54.5 | 42.2 | 31.4 | 53.3 |
| Highest Mean Temperature (F) | 36.4 | 43.0 | 51.1 | 59.4 | 65.6 | 76.2 | 80.6 | 77.9 | 71.1 | 60.1 | 46.9 | 39.3 | 55.6 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1985 | 1990 | 1964 | 1985 | 1990 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 14.2 | 22.2 | 38.4 | 47.0 | 56.0 | 63.9 | 72.7 | 69.2 | 60.7 | 48.4 | 35.0 | 25.1 | 49.8 |
| Year Lowest Occurred | 1973 | 1974 | 1964 | 1975 | 1980 | 1975 | 1977 | 1968 | 1961 | 1969 | 1979 | 1967 | 1973 |
| Mean Min. Temperature (F) | 16.1 | 23.4 | 30.6 | 37.3 | 45.7 | 54.3 | 61.2 | 59.1 | 50.3 | 38.4 | 28.9 | 19.3 | 38.7 |
| Highest Mean Min. Temperature (F) | 26.0 | 31.4 | 39.1 | 46.8 | 51.8 | 61.6 | 65.2 | 63.5 | 55.9 | 43.7 | 34.6 | 26.7 | 42.5 |
| Year Highest Occurred | 1980 | 1986 | 1990 | 1990 | 1985 | 1990 | 1964 | 1970 | 1990 | 1972 | 1965 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | -0.2 | 5.4 | 21.2 | 31.0 | 39.8 | 46.0 | 55.3 | 48.9 | 42.9 | 31.4 | 20.8 | 8.2 | 33.4 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1974 | 1977 | 1975 | 1977 | 1975 | 1975 | 1976 | 1976 | 1976 | 1974 |
| Mean Precipitation (in.) | 0.73 | 0.68 | 1.14 | 0.93 | 1.07 | 0.61 | 1.13 | 1.24 | 0.94 | 1.21 | 1.00 | 0.83 | 11.51 |
| Highest Precipitation (in.) | 2.33 | 2.35 | 3.67 | 1.91 | 3.21 | 2.29 | 2.67 | 4.64 | 2.86 | 4.84 | 2.16 | 2.27 | 17.54 |
| Year Highest Occurred | 1980 | 1980 | 1970 | 1985 | 1967 | 1969 | 1985 | 1982 | 1982 | 1972 | 1978 | 1967 | 1965 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.04 | 0.24 | 0.08 | 0.00 | 0.10 | 0.00 | 6.82 |
| Year Lowest Occurred | 1972 | 1988 | 1972 | 1989 | 1989 | 1990 | 1971 | 1974 | 1978 | 1964 | 1989 | 1976 | 1962 |
| Heating Degree Days (F) | 1132. | 795. | 639. | 383. | 160. | 37. | 0. | 0. | 64. | 331. | 684. | 1042. | 5267. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 42. | 205. | 363. | 295. | 100. | 6. | 0. | 0. | 1019. |