| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.1 | 39.8 | 48.3 | 59.0 | 69.6 | 80.4 | 90.4 | 88.3 | 77.8 | 64.7 | 47.3 | 35.6 | 61.2 |
| Highest Mean Max. Temperature (F) | 39.2 | 48.3 | 59.4 | 67.1 | 77.8 | 88.6 | 94.9 | 95.9 | 85.9 | 71.8 | 53.9 | 43.5 | 64.7 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1977 | 1969 | 1974 | 1985 | 1981 | 1990 | 1988 | 1976 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 25.1 | 28.6 | 36.8 | 48.2 | 62.2 | 71.9 | 84.4 | 80.9 | 68.9 | 54.8 | 42.0 | 27.1 | 58.0 |
| Year Lowest Occurred | 1989 | 1989 | 1964 | 1975 | 1975 | 1967 | 1987 | 1968 | 1965 | 1969 | 1985 | 1985 | 1964 |
| Mean Temperature (F) | 21.2 | 27.3 | 35.1 | 43.7 | 52.6 | 61.8 | 70.3 | 68.4 | 58.4 | 46.6 | 34.2 | 23.4 | 45.3 |
| Highest Mean Temperature (F) | 29.8 | 35.8 | 43.5 | 49.5 | 57.5 | 67.8 | 74.9 | 73.3 | 67.8 | 52.9 | 38.3 | 31.8 | 49.0 |
| Year Highest Occurred | 1978 | 1970 | 1986 | 1990 | 1969 | 1977 | 1985 | 1981 | 1990 | 1988 | 1965 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 14.3 | 15.7 | 24.8 | 36.2 | 47.1 | 56.8 | 67.1 | 63.8 | 50.5 | 40.1 | 27.7 | 13.9 | 42.2 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1968 | 1975 | 1967 | 1962 | 1968 | 1965 | 1969 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 9.2 | 14.8 | 21.7 | 28.3 | 35.7 | 43.1 | 50.3 | 48.5 | 39.0 | 28.4 | 20.9 | 11.1 | 29.3 |
| Highest Mean Min. Temperature (F) | 20.5 | 23.7 | 29.4 | 33.1 | 40.7 | 48.4 | 58.1 | 55.8 | 49.6 | 33.9 | 28.9 | 20.9 | 33.1 |
| Year Highest Occurred | 1981 | 1970 | 1983 | 1989 | 1987 | 1988 | 1988 | 1983 | 1990 | 1988 | 1966 | 1981 | 1981 |
| Lowest Mean Min. Temperature (F) | 0.4 | 0.5 | 9.2 | 16.6 | 32.0 | 39.2 | 45.9 | 40.9 | 32.1 | 20.9 | 13.0 | -1.2 | 25.5 |
| Year Lowest Occurred | 1962 | 1985 | 1968 | 1968 | 1975 | 1978 | 1962 | 1962 | 1965 | 1966 | 1979 | 1990 | 1968 |
| Mean Precipitation (in.) | 1.00 | 0.86 | 1.04 | 1.22 | 1.66 | 1.22 | 0.84 | 0.80 | 0.86 | 0.94 | 1.18 | 1.05 | 12.67 |
| Highest Precipitation (in.) | 2.83 | 2.20 | 3.07 | 3.91 | 4.44 | 4.18 | 3.41 | 3.45 | 3.62 | 2.30 | 4.03 | 3.34 | 23.79 |
| Year Highest Occurred | 1980 | 1980 | 1982 | 1971 | 1980 | 1967 | 1983 | 1968 | 1982 | 1981 | 1965 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.07 | 0.03 | 0.04 | 0.04 | 0.06 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.62 |
| Year Lowest Occurred | 1961 | 1989 | 1969 | 1969 | 1969 | 1986 | 1988 | 1975 | 1974 | 1978 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1358. | 1056. | 927. | 639. | 384. | 150. | 11. | 39. | 236. | 570. | 924. | 1290. | 7584. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 54. | 176. | 144. | 38. | 0. | 0. | 0. | 412. |