| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.1 | 44.2 | 53.1 | 60.8 | 69.5 | 77.9 | 84.6 | 84.1 | 74.9 | 62.1 | 45.9 | 35.9 | 60.8 |
| Highest Mean Max. Temperature (F) | 45.7 | 52.2 | 57.5 | 67.4 | 74.5 | 85.3 | 92.7 | 93.2 | 84.0 | 70.9 | 53.5 | 43.4 | 64.2 |
| Year Highest Occurred | 1967 | 1967 | 1990 | 1990 | 1987 | 1961 | 1985 | 1967 | 1990 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 20.8 | 34.5 | 47.9 | 54.9 | 62.9 | 70.4 | 78.3 | 77.8 | 67.6 | 57.5 | 31.7 | 23.5 | 57.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1980 | 1963 | 1968 | 1977 | 1975 | 1985 | 1985 | 1980 |
| Mean Temperature (F) | 29.3 | 35.5 | 41.8 | 47.7 | 54.8 | 62.7 | 68.0 | 67.8 | 59.9 | 49.2 | 37.8 | 29.3 | 48.7 |
| Highest Mean Temperature (F) | 37.9 | 40.8 | 46.4 | 53.2 | 59.4 | 67.7 | 74.0 | 73.7 | 66.4 | 56.4 | 42.9 | 37.0 | 51.1 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1987 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1990 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 14.8 | 25.8 | 38.1 | 42.8 | 50.5 | 57.1 | 62.7 | 62.6 | 55.3 | 45.5 | 24.3 | 18.9 | 46.3 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1967 | 1974 | 1971 | 1963 | 1964 | 1970 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.4 | 26.9 | 30.4 | 34.5 | 40.1 | 47.4 | 51.5 | 51.5 | 44.9 | 36.2 | 29.6 | 22.7 | 36.5 |
| Highest Mean Min. Temperature (F) | 31.3 | 32.3 | 35.5 | 39.4 | 44.2 | 52.2 | 57.9 | 59.1 | 48.8 | 42.4 | 34.4 | 30.6 | 38.4 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1987 | 1969 | 1990 | 1977 | 1990 | 1979 | 1983 | 1966 | 1987 |
| Lowest Mean Min. Temperature (F) | 8.8 | 17.0 | 26.1 | 29.8 | 34.5 | 43.0 | 47.0 | 46.6 | 40.6 | 32.6 | 16.9 | 14.2 | 33.4 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1964 | 1964 | 1976 | 1963 | 1964 | 1970 | 1984 | 1985 | 1985 | 1964 |
| Mean Precipitation (in.) | 0.88 | 0.66 | 0.72 | 0.62 | 0.60 | 0.51 | 0.25 | 0.53 | 0.43 | 0.52 | 1.02 | 1.06 | 7.80 |
| Highest Precipitation (in.) | 2.31 | 2.39 | 2.18 | 2.09 | 1.67 | 1.73 | 1.88 | 4.20 | 1.53 | 1.95 | 2.64 | 2.67 | 12.03 |
| Year Highest Occurred | 1970 | 1961 | 1987 | 1963 | 1990 | 1972 | 1963 | 1976 | 1971 | 1973 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.07 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.55 |
| Year Lowest Occurred | 1962 | 1988 | 1965 | 1981 | 1966 | 1976 | 1980 | 1988 | 1987 | 1987 | 1990 | 1978 | 1965 |
| Heating Degree Days (F) | 1107. | 826. | 719. | 519. | 320. | 131. | 44. | 65. | 190. | 490. | 816. | 1107. | 6334. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 62. | 137. | 152. | 37. | 0. | 0. | 0. | 388. |