| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.2 | 39.7 | 44.5 | 53.8 | 63.4 | 73.7 | 78.1 | 76.0 | 69.6 | 59.5 | 45.7 | 37.7 | 56.6 |
| Highest Mean Max. Temperature (F) | 44.6 | 44.7 | 54.0 | 60.9 | 69.1 | 79.2 | 82.4 | 78.7 | 76.6 | 65.9 | 50.6 | 46.9 | 58.6 |
| Year Highest Occurred | 1986 | 1970 | 1972 | 1981 | 1974 | 1977 | 1980 | 1980 | 1979 | 1963 | 1966 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 27.8 | 33.4 | 38.6 | 46.6 | 58.4 | 68.3 | 74.7 | 70.5 | 64.0 | 49.7 | 38.0 | 29.5 | 54.5 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1983 | 1983 | 1983 | 1986 | 1968 | 1965 | 1984 | 1979 | 1990 | 1982 |
| Mean Temperature (F) | 25.6 | 28.3 | 33.2 | 41.6 | 50.4 | 59.2 | 64.6 | 63.0 | 56.4 | 46.6 | 34.7 | 26.8 | 44.2 |
| Highest Mean Temperature (F) | 31.9 | 33.3 | 41.1 | 46.8 | 55.2 | 64.0 | 67.0 | 65.9 | 60.8 | 53.2 | 40.0 | 35.4 | 46.4 |
| Year Highest Occurred | 1986 | 1970 | 1972 | 1989 | 1963 | 1990 | 1989 | 1969 | 1979 | 1963 | 1962 | 1980 | 1963 |
| Lowest Mean Temperature (F) | 18.1 | 21.9 | 27.9 | 35.6 | 46.5 | 55.4 | 62.0 | 58.8 | 52.5 | 39.1 | 26.3 | 19.7 | 42.2 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1983 | 1983 | 1983 | 1986 | 1968 | 1961 | 1984 | 1979 | 1990 | 1982 |
| Mean Min. Temperature (F) | 13.9 | 16.9 | 21.9 | 29.3 | 37.2 | 44.7 | 51.1 | 49.9 | 43.2 | 33.6 | 23.7 | 15.9 | 31.8 |
| Highest Mean Min. Temperature (F) | 19.2 | 22.6 | 29.6 | 34.0 | 41.9 | 49.5 | 53.8 | 53.3 | 47.4 | 40.4 | 29.8 | 23.8 | 34.2 |
| Year Highest Occurred | 1969 | 1962 | 1967 | 1989 | 1963 | 1990 | 1963 | 1969 | 1963 | 1963 | 1962 | 1980 | 1963 |
| Lowest Mean Min. Temperature (F) | 8.3 | 10.4 | 15.4 | 24.5 | 34.4 | 40.3 | 48.2 | 47.0 | 39.9 | 28.4 | 14.6 | 9.7 | 29.4 |
| Year Lowest Occurred | 1984 | 1964 | 1977 | 1983 | 1975 | 1982 | 1982 | 1968 | 1988 | 1984 | 1979 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.55 | 1.74 | 2.30 | 1.93 | 1.79 | 1.30 | 2.18 | 2.37 | 2.14 | 2.34 | 2.08 | 1.82 | 23.54 |
| Highest Precipitation (in.) | 4.54 | 3.90 | 4.91 | 4.88 | 3.86 | 4.23 | 4.95 | 5.28 | 4.84 | 6.01 | 5.13 | 4.21 | 33.66 |
| Year Highest Occurred | 1979 | 1987 | 1984 | 1990 | 1982 | 1969 | 1981 | 1982 | 1985 | 1969 | 1986 | 1983 | 1984 |
| Lowest Precipitation (in.) | 0.49 | 0.33 | 0.52 | 0.58 | 0.04 | 0.00 | 0.51 | 0.48 | 0.10 | 0.28 | 0.21 | 0.17 | 15.41 |
| Year Lowest Occurred | 1961 | 1972 | 1966 | 1981 | 1974 | 1980 | 1979 | 1974 | 1979 | 1964 | 1989 | 1976 | 1989 |
| Heating Degree Days (F) | 1221. | 1028. | 986. | 702. | 453. | 189. | 54. | 81. | 262. | 570. | 909. | 1184. | 7639. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 15. | 41. | 19. | 0. | 0. | 0. | 0. | 75. |