| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.5 | 46.4 | 55.2 | 63.2 | 71.6 | 79.9 | 86.7 | 85.7 | 76.8 | 64.4 | 48.3 | 37.5 | 62.8 |
| Highest Mean Max. Temperature (F) | 45.6 | 52.9 | 60.6 | 69.4 | 76.4 | 87.4 | 93.5 | 93.6 | 84.1 | 71.7 | 54.7 | 44.2 | 65.2 |
| Year Highest Occurred | 1983 | 1961 | 1981 | 1977 | 1983 | 1961 | 1985 | 1967 | 1990 | 1988 | 1990 | 1973 | 1967 |
| Lowest Mean Max. Temperature (F) | 23.7 | 36.1 | 48.9 | 58.1 | 65.0 | 74.2 | 81.5 | 78.1 | 70.5 | 59.6 | 33.3 | 24.1 | 59.1 |
| Year Lowest Occurred | 1979 | 1969 | 1971 | 1967 | 1962 | 1976 | 1963 | 1968 | 1985 | 1968 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.7 | 36.4 | 43.0 | 49.4 | 57.0 | 64.6 | 69.9 | 69.0 | 60.7 | 49.9 | 38.6 | 29.8 | 49.8 |
| Highest Mean Temperature (F) | 39.9 | 42.9 | 47.8 | 53.9 | 60.9 | 69.6 | 74.9 | 74.2 | 66.5 | 55.1 | 42.5 | 36.4 | 51.9 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1977 | 1983 | 1961 | 1985 | 1967 | 1967 | 1988 | 1965 | 1966 | 1967 |
| Lowest Mean Temperature (F) | 14.8 | 26.4 | 38.5 | 45.2 | 52.4 | 59.7 | 65.7 | 64.8 | 55.3 | 46.7 | 23.0 | 19.1 | 46.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1984 | 1976 | 1986 | 1964 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 21.8 | 26.4 | 30.8 | 35.5 | 42.3 | 49.2 | 53.1 | 52.3 | 44.6 | 35.3 | 29.0 | 22.1 | 36.9 |
| Highest Mean Min. Temperature (F) | 35.3 | 32.8 | 36.9 | 40.0 | 46.1 | 55.2 | 58.4 | 58.7 | 49.7 | 39.1 | 34.1 | 29.5 | 38.8 |
| Year Highest Occurred | 1981 | 1961 | 1983 | 1980 | 1980 | 1969 | 1975 | 1977 | 1967 | 1979 | 1983 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 5.9 | 16.5 | 27.0 | 30.4 | 38.2 | 44.6 | 49.6 | 48.9 | 38.9 | 31.7 | 12.7 | 10.4 | 33.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1972 | 1984 | 1971 | 1986 | 1988 | 1971 | 1987 | 1985 | 1984 | 1985 |
| Mean Precipitation (in.) | 1.21 | 0.74 | 0.67 | 0.50 | 0.45 | 0.53 | 0.16 | 0.40 | 0.40 | 0.47 | 1.03 | 1.41 | 7.97 |
| Highest Precipitation (in.) | 3.66 | 2.46 | 2.04 | 1.62 | 1.13 | 1.70 | 0.71 | 2.10 | 2.07 | 1.52 | 2.83 | 4.19 | 13.22 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1963 | 1990 | 1982 | 1966 | 1975 | 1986 | 1973 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.09 | 0.00 | 0.01 | 0.00 | 0.03 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 4.18 |
| Year Lowest Occurred | 1985 | 1988 | 1973 | 1985 | 1964 | 1970 | 1988 | 1988 | 1987 | 1978 | 1990 | 1976 | 1976 |
| Heating Degree Days (F) | 1094. | 801. | 682. | 468. | 255. | 90. | 19. | 38. | 169. | 468. | 792. | 1091. | 5967. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 78. | 171. | 162. | 40. | 0. | 0. | 0. | 458. |