| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.4 | 51.5 | 55.7 | 60.4 | 67.0 | 74.5 | 81.6 | 82.0 | 76.0 | 64.2 | 52.4 | 46.4 | 63.2 |
| Highest Mean Max. Temperature (F) | 51.6 | 58.7 | 60.7 | 66.8 | 72.8 | 79.8 | 87.8 | 91.1 | 84.8 | 72.4 | 56.1 | 51.8 | 65.3 |
| Year Highest Occurred | 1984 | 1968 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 38.0 | 43.5 | 50.9 | 55.5 | 60.5 | 67.9 | 75.2 | 76.5 | 70.4 | 59.6 | 44.5 | 40.9 | 61.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1963 | 1962 | 1980 | 1963 | 1975 | 1977 | 1975 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 39.6 | 42.8 | 45.7 | 49.1 | 54.6 | 61.4 | 66.3 | 66.7 | 61.6 | 52.7 | 45.0 | 40.0 | 52.1 |
| Highest Mean Temperature (F) | 44.3 | 48.3 | 50.2 | 54.6 | 58.9 | 65.6 | 70.2 | 71.8 | 65.9 | 56.6 | 49.3 | 44.8 | 53.5 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1969 | 1969 | 1985 | 1967 | 1974 | 1988 | 1983 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 31.2 | 34.8 | 41.9 | 44.6 | 51.0 | 57.1 | 62.1 | 62.8 | 57.7 | 50.0 | 37.3 | 33.3 | 50.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1976 | 1963 | 1980 | 1972 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 32.7 | 34.1 | 35.6 | 37.7 | 42.2 | 48.3 | 50.9 | 51.4 | 47.1 | 41.1 | 37.5 | 33.6 | 41.0 |
| Highest Mean Min. Temperature (F) | 38.1 | 38.8 | 40.5 | 42.3 | 45.1 | 53.8 | 54.2 | 55.2 | 52.7 | 45.5 | 43.0 | 38.0 | 43.0 |
| Year Highest Occurred | 1967 | 1978 | 1983 | 1989 | 1987 | 1969 | 1978 | 1990 | 1963 | 1988 | 1983 | 1966 | 1983 |
| Lowest Mean Min. Temperature (F) | 24.4 | 26.0 | 31.9 | 33.0 | 39.5 | 43.8 | 47.1 | 46.3 | 43.4 | 37.0 | 30.1 | 24.4 | 38.4 |
| Year Lowest Occurred | 1979 | 1989 | 1969 | 1982 | 1966 | 1976 | 1962 | 1980 | 1972 | 1972 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 5.92 | 4.50 | 4.17 | 2.42 | 1.88 | 1.34 | 0.56 | 0.76 | 1.55 | 2.98 | 6.28 | 6.80 | 39.16 |
| Highest Precipitation (in.) | 13.47 | 10.82 | 8.56 | 4.07 | 3.76 | 4.19 | 2.63 | 4.17 | 3.98 | 6.14 | 15.23 | 12.40 | 55.35 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1963 | 1977 | 1984 | 1983 | 1968 | 1971 | 1968 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.47 | 0.75 | 0.87 | 0.62 | 0.59 | 0.26 | 0.00 | 0.00 | 0.00 | 0.12 | 1.13 | 1.26 | 23.97 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1964 | 1987 | 1973 | 1988 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 787. | 622. | 598. | 477. | 322. | 141. | 41. | 52. | 131. | 381. | 600. | 775. | 4927. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 33. | 81. | 104. | 29. | 0. | 0. | 0. | 247. |