| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.5 | 48.6 | 58.4 | 67.3 | 76.2 | 85.1 | 93.2 | 91.4 | 80.7 | 68.2 | 51.9 | 40.0 | 66.7 |
| Highest Mean Max. Temperature (F) | 47.1 | 55.3 | 64.2 | 76.6 | 82.5 | 96.5 | 99.5 | 97.5 | 90.4 | 76.0 | 56.7 | 46.5 | 69.1 |
| Year Highest Occurred | 1967 | 1963 | 1978 | 1987 | 1966 | 1961 | 1961 | 1967 | 1979 | 1988 | 1965 | 1977 | 1966 |
| Lowest Mean Max. Temperature (F) | 29.6 | 36.9 | 53.1 | 59.4 | 69.7 | 78.2 | 86.5 | 82.9 | 69.4 | 62.3 | 38.5 | 22.2 | 62.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1977 | 1964 | 1986 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.9 | 36.8 | 43.9 | 51.5 | 60.0 | 68.4 | 74.7 | 72.4 | 62.2 | 51.4 | 39.9 | 30.2 | 51.8 |
| Highest Mean Temperature (F) | 37.7 | 43.2 | 50.5 | 58.6 | 64.0 | 77.3 | 79.3 | 78.6 | 67.9 | 57.7 | 44.1 | 37.4 | 53.9 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1987 | 1987 | 1961 | 1985 | 1961 | 1990 | 1988 | 1981 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 17.2 | 26.9 | 38.2 | 45.4 | 54.4 | 64.1 | 70.8 | 66.4 | 55.5 | 46.2 | 29.1 | 14.9 | 47.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1967 | 1977 | 1984 | 1986 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 20.2 | 24.9 | 29.4 | 35.7 | 43.7 | 51.6 | 56.1 | 53.4 | 43.7 | 34.5 | 27.9 | 20.2 | 36.8 |
| Highest Mean Min. Temperature (F) | 29.2 | 34.3 | 37.0 | 43.7 | 50.1 | 58.0 | 61.5 | 59.7 | 50.8 | 39.8 | 34.0 | 28.2 | 39.5 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1987 | 1961 | 1975 | 1961 | 1990 | 1963 | 1983 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 4.8 | 16.8 | 21.7 | 30.7 | 39.0 | 47.0 | 51.3 | 48.5 | 38.8 | 28.2 | 19.7 | 6.0 | 32.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1968 | 1977 | 1979 | 1979 | 1979 | 1979 | 1978 | 1985 | 1990 | 1979 |
| Mean Precipitation (in.) | 0.68 | 0.53 | 0.69 | 0.64 | 0.73 | 0.79 | 0.21 | 0.31 | 0.59 | 0.47 | 0.87 | 0.63 | 7.14 |
| Highest Precipitation (in.) | 1.67 | 2.09 | 2.17 | 1.49 | 2.58 | 2.32 | 1.05 | 2.16 | 2.41 | 1.97 | 1.73 | 1.78 | 13.62 |
| Year Highest Occurred | 1970 | 1986 | 1974 | 1981 | 1990 | 1971 | 1975 | 1968 | 1985 | 1975 | 1981 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 3.72 |
| Year Lowest Occurred | 1966 | 1964 | 1965 | 1989 | 1978 | 1989 | 1989 | 1985 | 1990 | 1988 | 1976 | 1989 | 1966 |
| Heating Degree Days (F) | 1088. | 790. | 654. | 411. | 170. | 52. | 0. | 18. | 144. | 422. | 753. | 1079. | 5581. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 15. | 154. | 304. | 247. | 60. | 0. | 0. | 0. | 786. |