| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.6 | 47.6 | 55.1 | 62.0 | 70.3 | 78.0 | 85.0 | 84.5 | 76.6 | 64.4 | 48.7 | 40.5 | 62.8 |
| Highest Mean Max. Temperature (F) | 48.5 | 54.1 | 60.2 | 68.4 | 76.5 | 85.5 | 94.7 | 92.3 | 84.6 | 72.1 | 54.4 | 46.6 | 65.4 |
| Year Highest Occurred | 1967 | 1967 | 1986 | 1990 | 1983 | 1987 | 1985 | 1986 | 1990 | 1988 | 1962 | 1974 | 1987 |
| Lowest Mean Max. Temperature (F) | 26.7 | 37.5 | 50.1 | 56.0 | 64.3 | 71.0 | 80.4 | 77.0 | 69.6 | 58.7 | 36.9 | 26.8 | 60.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1980 | 1963 | 1968 | 1971 | 1984 | 1985 | 1985 | 1980 |
| Mean Temperature (F) | 32.5 | 37.7 | 42.8 | 47.7 | 54.4 | 61.3 | 66.6 | 66.4 | 59.6 | 49.8 | 39.5 | 32.7 | 49.3 |
| Highest Mean Temperature (F) | 40.1 | 43.7 | 48.1 | 52.2 | 58.5 | 66.4 | 73.3 | 72.8 | 65.1 | 55.8 | 44.3 | 38.2 | 51.4 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1969 | 1961 | 1985 | 1961 | 1963 | 1988 | 1962 | 1973 | 1961 |
| Lowest Mean Temperature (F) | 17.2 | 27.2 | 38.2 | 42.4 | 49.8 | 56.2 | 62.7 | 62.3 | 54.6 | 46.7 | 28.0 | 21.4 | 47.3 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1976 | 1963 | 1980 | 1971 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 24.4 | 27.8 | 30.4 | 33.4 | 38.4 | 44.6 | 48.2 | 48.3 | 42.6 | 35.3 | 30.3 | 24.8 | 35.7 |
| Highest Mean Min. Temperature (F) | 31.9 | 34.1 | 36.0 | 37.0 | 42.3 | 50.1 | 51.9 | 53.3 | 46.8 | 39.5 | 35.0 | 31.6 | 37.8 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1989 | 1987 | 1969 | 1985 | 1961 | 1963 | 1988 | 1965 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 7.7 | 16.8 | 25.8 | 27.8 | 34.3 | 38.7 | 44.9 | 43.6 | 38.3 | 30.2 | 19.0 | 14.7 | 33.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1975 | 1976 | 1963 | 1973 | 1965 | 1974 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.92 | 1.24 | 1.21 | 0.77 | 0.71 | 0.59 | 0.27 | 0.50 | 0.55 | 0.81 | 1.76 | 2.18 | 12.51 |
| Highest Precipitation (in.) | 4.84 | 3.51 | 3.14 | 2.33 | 2.40 | 1.70 | 1.04 | 1.66 | 2.11 | 2.36 | 4.80 | 6.80 | 20.20 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1988 | 1990 | 1988 | 1966 | 1968 | 1982 | 1979 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.12 | 0.01 | 0.12 | 0.03 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 0.25 | 7.09 |
| Year Lowest Occurred | 1985 | 1967 | 1973 | 1966 | 1964 | 1962 | 1984 | 1988 | 1975 | 1988 | 1969 | 1976 | 1967 |
| Heating Degree Days (F) | 1008. | 764. | 688. | 519. | 329. | 152. | 50. | 71. | 186. | 471. | 765. | 1001. | 6004. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 41. | 99. | 115. | 24. | 0. | 0. | 0. | 279. |