| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.0 | 46.9 | 52.9 | 62.8 | 72.2 | 82.6 | 85.2 | 81.8 | 76.1 | 66.6 | 53.3 | 44.7 | 64.0 |
| Highest Mean Max. Temperature (F) | 54.8 | 54.0 | 64.2 | 70.8 | 79.1 | 87.8 | 89.5 | 86.2 | 81.7 | 72.0 | 59.8 | 55.1 | 66.5 |
| Year Highest Occurred | 1986 | 1972 | 1972 | 1989 | 1984 | 1974 | 1980 | 1962 | 1979 | 1979 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 36.7 | 38.4 | 45.1 | 55.1 | 68.0 | 76.5 | 80.5 | 77.4 | 71.9 | 55.5 | 45.8 | 36.9 | 61.3 |
| Year Lowest Occurred | 1979 | 1964 | 1973 | 1973 | 1979 | 1965 | 1986 | 1968 | 1975 | 1984 | 1972 | 1967 | 1964 |
| Mean Temperature (F) | 27.6 | 32.0 | 37.8 | 45.3 | 53.4 | 62.7 | 68.4 | 65.8 | 59.3 | 49.1 | 37.7 | 29.5 | 47.4 |
| Highest Mean Temperature (F) | 36.8 | 37.4 | 44.1 | 50.2 | 57.8 | 67.3 | 70.4 | 69.0 | 62.8 | 52.4 | 41.1 | 37.2 | 49.4 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1984 | 1974 | 1980 | 1969 | 1979 | 1963 | 1966 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 20.3 | 21.4 | 31.0 | 40.5 | 50.5 | 58.2 | 65.0 | 62.7 | 56.4 | 43.4 | 34.2 | 23.7 | 44.8 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1970 | 1975 | 1965 | 1987 | 1968 | 1965 | 1984 | 1979 | 1967 | 1964 |
| Mean Min. Temperature (F) | 12.2 | 17.1 | 22.7 | 27.8 | 34.5 | 42.7 | 51.4 | 49.7 | 42.5 | 31.5 | 22.0 | 14.2 | 30.7 |
| Highest Mean Min. Temperature (F) | 21.6 | 22.9 | 27.3 | 33.0 | 37.7 | 46.8 | 54.7 | 53.1 | 47.0 | 38.5 | 25.9 | 22.1 | 33.2 |
| Year Highest Occurred | 1980 | 1986 | 1983 | 1990 | 1966 | 1974 | 1967 | 1969 | 1990 | 1972 | 1978 | 1983 | 1986 |
| Lowest Mean Min. Temperature (F) | 3.1 | 4.4 | 16.4 | 23.1 | 31.1 | 38.5 | 46.4 | 44.8 | 38.8 | 27.0 | 15.9 | 8.2 | 28.2 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1970 | 1971 | 1975 | 1987 | 1978 | 1973 | 1980 | 1975 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.04 | 0.92 | 1.14 | 0.77 | 0.62 | 0.57 | 2.05 | 2.58 | 1.58 | 1.19 | 0.90 | 1.10 | 14.46 |
| Highest Precipitation (in.) | 4.37 | 2.23 | 3.14 | 2.20 | 2.56 | 2.65 | 4.03 | 4.49 | 3.85 | 4.75 | 2.43 | 2.73 | 19.62 |
| Year Highest Occurred | 1979 | 1980 | 1981 | 1988 | 1979 | 1988 | 1967 | 1971 | 1983 | 1972 | 1986 | 1990 | 1979 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.05 | 0.00 | 0.00 | 0.00 | 0.42 | 0.51 | 0.10 | 0.02 | 0.02 | 0.05 | 9.59 |
| Year Lowest Occurred | 1986 | 1977 | 1974 | 1989 | 1974 | 1982 | 1980 | 1962 | 1979 | 1975 | 1989 | 1981 | 1976 |
| Heating Degree Days (F) | 1159. | 924. | 843. | 591. | 360. | 104. | 8. | 35. | 178. | 493. | 819. | 1101. | 6615. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 35. | 114. | 59. | 7. | 0. | 0. | 0. | 215. |