| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.2 | 47.4 | 51.7 | 56.6 | 63.3 | 70.3 | 77.3 | 77.9 | 72.2 | 61.9 | 49.6 | 43.6 | 59.6 |
| Highest Mean Max. Temperature (F) | 49.8 | 55.3 | 57.1 | 64.9 | 69.2 | 76.7 | 85.0 | 88.6 | 81.1 | 71.5 | 54.6 | 47.6 | 62.5 |
| Year Highest Occurred | 1961 | 1968 | 1965 | 1987 | 1969 | 1961 | 1985 | 1967 | 1967 | 1987 | 1976 | 1969 | 1987 |
| Lowest Mean Max. Temperature (F) | 36.5 | 41.6 | 46.5 | 50.8 | 55.7 | 63.5 | 68.9 | 72.4 | 65.3 | 55.9 | 41.0 | 37.2 | 57.4 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1963 | 1962 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 38.1 | 41.0 | 43.8 | 47.5 | 53.4 | 59.9 | 65.2 | 66.0 | 61.3 | 53.3 | 44.3 | 38.9 | 51.1 |
| Highest Mean Temperature (F) | 43.1 | 46.7 | 48.6 | 53.2 | 57.8 | 64.8 | 70.1 | 72.8 | 67.0 | 60.0 | 48.2 | 42.9 | 53.1 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1967 | 1988 | 1976 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 32.2 | 34.2 | 39.4 | 43.0 | 48.6 | 55.4 | 60.6 | 62.2 | 57.3 | 49.7 | 36.3 | 32.3 | 49.3 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1980 | 1983 | 1980 | 1985 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 32.9 | 34.5 | 35.9 | 38.5 | 43.4 | 49.4 | 53.2 | 54.0 | 50.4 | 44.6 | 38.9 | 34.2 | 42.5 |
| Highest Mean Min. Temperature (F) | 37.7 | 38.8 | 40.5 | 41.9 | 47.1 | 53.9 | 55.6 | 57.3 | 54.1 | 50.9 | 42.0 | 38.5 | 43.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1987 | 1969 | 1990 | 1977 | 1963 | 1988 | 1965 | 1979 | 1986 |
| Lowest Mean Min. Temperature (F) | 26.7 | 26.8 | 32.2 | 34.8 | 41.0 | 45.7 | 50.7 | 50.2 | 46.4 | 41.7 | 31.5 | 27.4 | 40.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1975 | 1976 | 1986 | 1980 | 1970 | 1971 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 12.79 | 10.24 | 9.42 | 6.54 | 4.87 | 3.27 | 0.90 | 1.60 | 3.56 | 6.42 | 13.00 | 13.98 | 86.59 |
| Highest Precipitation (in.) | 24.19 | 22.76 | 15.89 | 10.88 | 10.62 | 9.35 | 5.03 | 7.86 | 8.88 | 14.94 | 29.01 | 31.10 | 109.11 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1970 | 1984 | 1984 | 1983 | 1968 | 1986 | 1967 | 1973 | 1964 | 1984 |
| Lowest Precipitation (in.) | 0.43 | 3.68 | 1.76 | 2.96 | 1.35 | 0.64 | 0.00 | 0.00 | 0.01 | 0.09 | 2.86 | 3.56 | 60.54 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1966 | 1982 | 1965 | 1967 | 1988 | 1975 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 834. | 672. | 657. | 525. | 360. | 176. | 76. | 72. | 154. | 363. | 621. | 809. | 5319. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 23. | 82. | 103. | 43. | 0. | 0. | 0. | 251. |