| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.3 | 42.0 | 47.6 | 54.8 | 63.1 | 70.1 | 76.2 | 76.9 | 68.8 | 57.0 | 44.4 | 38.0 | 56.4 |
| Highest Mean Max. Temperature (F) | 43.9 | 47.6 | 53.6 | 60.1 | 70.5 | 78.0 | 86.5 | 87.0 | 76.4 | 63.7 | 48.8 | 43.3 | 59.1 |
| Year Highest Occurred | 1981 | 1977 | 1981 | 1980 | 1969 | 1961 | 1985 | 1967 | 1967 | 1987 | 1969 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 26.9 | 33.8 | 41.7 | 50.2 | 55.4 | 62.3 | 69.5 | 69.4 | 61.0 | 51.1 | 32.8 | 31.0 | 53.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1981 | 1983 | 1976 | 1978 | 1990 | 1985 | 1964 | 1964 |
| Mean Temperature (F) | 32.8 | 36.2 | 40.3 | 46.0 | 53.1 | 59.7 | 64.7 | 65.8 | 59.1 | 49.6 | 39.8 | 33.9 | 48.4 |
| Highest Mean Temperature (F) | 39.6 | 40.9 | 44.3 | 49.8 | 57.7 | 64.1 | 71.0 | 72.1 | 64.4 | 54.2 | 44.3 | 38.9 | 50.8 |
| Year Highest Occurred | 1981 | 1977 | 1981 | 1987 | 1969 | 1969 | 1985 | 1967 | 1967 | 1987 | 1987 | 1976 | 1987 |
| Lowest Mean Temperature (F) | 22.1 | 27.4 | 35.8 | 42.3 | 48.6 | 54.5 | 60.9 | 60.7 | 54.3 | 45.3 | 27.5 | 26.9 | 46.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1981 | 1983 | 1975 | 1972 | 1990 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 28.2 | 30.5 | 33.0 | 37.1 | 43.0 | 49.2 | 53.1 | 54.8 | 49.4 | 42.1 | 35.1 | 29.7 | 40.4 |
| Highest Mean Min. Temperature (F) | 35.3 | 34.2 | 36.2 | 40.5 | 45.7 | 52.3 | 56.5 | 58.3 | 53.1 | 45.9 | 39.9 | 35.0 | 42.5 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1990 | 1983 | 1969 | 1990 | 1977 | 1963 | 1988 | 1987 | 1989 | 1987 |
| Lowest Mean Min. Temperature (F) | 17.3 | 21.0 | 29.5 | 33.2 | 40.4 | 46.4 | 51.0 | 51.6 | 45.2 | 38.6 | 22.1 | 22.2 | 38.3 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1982 | 1984 | 1976 | 1976 | 1975 | 1972 | 1961 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 9.05 | 6.25 | 5.10 | 3.11 | 2.12 | 1.50 | 1.17 | 1.28 | 2.54 | 5.52 | 9.46 | 9.34 | 56.44 |
| Highest Precipitation (in.) | 17.98 | 13.47 | 9.84 | 7.22 | 5.32 | 4.92 | 4.54 | 3.50 | 6.43 | 15.95 | 21.14 | 18.60 | 79.11 |
| Year Highest Occurred | 1974 | 1961 | 1988 | 1981 | 1984 | 1968 | 1983 | 1990 | 1972 | 1967 | 1990 | 1975 | 1990 |
| Lowest Precipitation (in.) | 0.60 | 1.23 | 0.61 | 1.20 | 0.47 | 0.19 | 0.05 | 0.01 | 0.21 | 0.23 | 1.24 | 1.26 | 38.66 |
| Year Lowest Occurred | 1985 | 1989 | 1965 | 1978 | 1983 | 1965 | 1984 | 1986 | 1989 | 1987 | 1979 | 1985 | 1985 |
| Heating Degree Days (F) | 998. | 806. | 766. | 570. | 369. | 185. | 81. | 91. | 205. | 477. | 756. | 964. | 6268. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 26. | 72. | 116. | 28. | 0. | 0. | 0. | 242. |