| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.7 | 51.9 | 55.4 | 61.6 | 70.0 | 78.4 | 86.8 | 86.8 | 80.4 | 68.9 | 52.0 | 45.6 | 65.4 |
| Highest Mean Max. Temperature (F) | 53.9 | 60.3 | 62.8 | 70.9 | 76.7 | 84.8 | 91.0 | 95.2 | 89.6 | 80.7 | 59.8 | 54.1 | 68.7 |
| Year Highest Occurred | 1981 | 1988 | 1986 | 1987 | 1969 | 1987 | 1972 | 1967 | 1974 | 1987 | 1976 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 39.5 | 44.7 | 49.5 | 51.3 | 61.6 | 71.7 | 78.2 | 78.7 | 69.8 | 58.8 | 44.6 | 39.1 | 62.9 |
| Year Lowest Occurred | 1969 | 1979 | 1971 | 1967 | 1977 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1972 | 1983 |
| Mean Temperature (F) | 37.2 | 40.8 | 43.2 | 47.4 | 54.1 | 61.3 | 67.1 | 66.9 | 61.1 | 52.7 | 42.4 | 37.1 | 50.9 |
| Highest Mean Temperature (F) | 43.9 | 46.1 | 48.7 | 53.7 | 58.5 | 66.0 | 70.9 | 72.4 | 66.0 | 60.2 | 46.4 | 40.8 | 53.2 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1973 | 1986 | 1985 | 1967 | 1967 | 1988 | 1976 | 1989 | 1987 |
| Lowest Mean Temperature (F) | 33.0 | 35.3 | 39.3 | 40.8 | 49.1 | 57.5 | 62.2 | 63.5 | 55.1 | 47.5 | 36.1 | 31.1 | 48.9 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1977 | 1980 | 1963 | 1975 | 1986 | 1984 | 1985 | 1972 | 1971 |
| Mean Min. Temperature (F) | 27.6 | 29.6 | 31.1 | 33.1 | 38.1 | 44.1 | 47.4 | 47.0 | 41.8 | 36.5 | 32.6 | 28.6 | 36.5 |
| Highest Mean Min. Temperature (F) | 34.8 | 34.8 | 35.8 | 38.3 | 41.3 | 49.0 | 51.1 | 51.3 | 46.8 | 42.1 | 36.4 | 34.1 | 38.4 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1990 | 1963 | 1986 | 1990 | 1977 | 1963 | 1979 | 1970 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 20.7 | 23.8 | 27.3 | 29.3 | 35.5 | 38.5 | 41.5 | 42.9 | 36.6 | 32.8 | 27.2 | 22.8 | 34.1 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1964 | 1982 | 1962 | 1962 | 1980 | 1961 | 1974 | 1978 | 1990 | 1962 |
| Mean Precipitation (in.) | 5.98 | 4.67 | 4.62 | 2.76 | 2.21 | 1.01 | 0.38 | 0.99 | 1.44 | 3.31 | 6.84 | 6.83 | 41.04 |
| Highest Precipitation (in.) | 11.82 | 12.30 | 9.46 | 5.59 | 5.98 | 2.76 | 3.54 | 5.99 | 7.17 | 8.62 | 16.69 | 23.68 | 57.78 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1963 | 1977 | 1984 | 1987 | 1976 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.67 | 0.90 | 0.52 | 0.81 | 0.09 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.69 | 25.55 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1987 | 1982 | 1977 | 1988 | 1987 | 1987 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 862. | 678. | 676. | 528. | 338. | 144. | 45. | 52. | 163. | 387. | 678. | 865. | 5416. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 33. | 110. | 111. | 46. | 6. | 0. | 0. | 306. |