| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.1 | 36.8 | 42.3 | 51.4 | 61.5 | 71.1 | 80.8 | 80.3 | 69.8 | 57.9 | 40.9 | 31.7 | 54.6 |
| Highest Mean Max. Temperature (F) | 36.3 | 45.6 | 49.3 | 63.7 | 68.9 | 79.3 | 86.8 | 88.2 | 79.1 | 69.8 | 49.4 | 39.6 | 58.1 |
| Year Highest Occurred | 1990 | 1963 | 1978 | 1987 | 1966 | 1961 | 1985 | 1967 | 1990 | 1988 | 1976 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 22.8 | 31.7 | 36.0 | 42.7 | 55.1 | 66.2 | 75.1 | 72.5 | 60.3 | 51.3 | 30.8 | 25.0 | 51.8 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1977 | 1971 | 1982 | 1976 | 1986 | 1984 | 1985 | 1978 | 1982 |
| Mean Temperature (F) | 21.7 | 25.7 | 30.8 | 38.8 | 47.5 | 55.7 | 62.3 | 61.0 | 52.1 | 42.8 | 31.8 | 23.4 | 41.1 |
| Highest Mean Temperature (F) | 28.4 | 35.3 | 37.5 | 46.3 | 51.8 | 62.1 | 65.8 | 67.9 | 59.6 | 48.3 | 36.2 | 28.9 | 43.3 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1987 | 1961 | 1961 | 1961 | 1963 | 1988 | 1976 | 1989 | 1963 |
| Lowest Mean Temperature (F) | 11.0 | 18.3 | 24.2 | 31.4 | 43.8 | 51.2 | 56.7 | 56.2 | 45.3 | 37.7 | 23.5 | 14.8 | 38.5 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1975 | 1975 | 1986 | 1975 | 1986 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 12.2 | 14.5 | 19.2 | 26.2 | 33.4 | 40.1 | 43.6 | 41.8 | 34.3 | 27.8 | 22.7 | 15.0 | 27.6 |
| Highest Mean Min. Temperature (F) | 20.5 | 26.0 | 26.0 | 31.7 | 38.3 | 44.8 | 50.3 | 53.4 | 45.0 | 35.3 | 26.5 | 21.4 | 32.2 |
| Year Highest Occurred | 1990 | 1961 | 1986 | 1990 | 1963 | 1961 | 1963 | 1963 | 1963 | 1963 | 1962 | 1977 | 1963 |
| Lowest Mean Min. Temperature (F) | -0.9 | 4.8 | 10.4 | 20.0 | 29.7 | 35.4 | 37.5 | 35.2 | 27.7 | 20.3 | 15.7 | 4.1 | 24.0 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1975 | 1975 | 1986 | 1988 | 1988 | 1987 | 1979 | 1990 | 1985 |
| Mean Precipitation (in.) | 3.79 | 2.79 | 2.63 | 1.97 | 2.08 | 2.07 | 0.81 | 1.15 | 1.72 | 1.91 | 3.18 | 3.54 | 27.64 |
| Highest Precipitation (in.) | 8.45 | 5.65 | 5.07 | 4.19 | 4.53 | 5.57 | 2.43 | 3.30 | 5.24 | 6.45 | 9.25 | 8.75 | 36.70 |
| Year Highest Occurred | 1965 | 1986 | 1974 | 1978 | 1990 | 1964 | 1976 | 1975 | 1985 | 1962 | 1973 | 1964 | 1982 |
| Lowest Precipitation (in.) | 0.41 | 0.62 | 0.32 | 0.28 | 0.52 | 0.59 | 0.00 | 0.00 | 0.01 | 0.00 | 0.36 | 0.31 | 18.23 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1966 | 1979 | 1969 | 1970 | 1987 | 1987 | 1976 | 1989 | 1987 |
| Heating Degree Days (F) | 1342. | 1100. | 1060. | 786. | 543. | 286. | 113. | 174. | 394. | 688. | 996. | 1290. | 8772. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 29. | 50. | 7. | 0. | 0. | 0. | 93. |