| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.6 | 46.7 | 51.8 | 57.5 | 64.1 | 70.8 | 77.4 | 78.3 | 72.7 | 62.0 | 48.5 | 41.9 | 59.4 |
| Highest Mean Max. Temperature (F) | 48.8 | 53.0 | 58.5 | 64.1 | 69.9 | 77.5 | 85.0 | 87.3 | 81.6 | 72.2 | 53.9 | 47.1 | 61.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 34.1 | 38.0 | 45.0 | 51.9 | 56.6 | 64.5 | 70.6 | 72.6 | 66.1 | 56.0 | 40.2 | 35.2 | 57.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1980 | 1983 | 1975 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 36.0 | 39.6 | 43.1 | 47.3 | 53.0 | 59.1 | 63.9 | 64.3 | 59.6 | 51.3 | 42.3 | 36.8 | 49.7 |
| Highest Mean Temperature (F) | 41.7 | 45.4 | 48.5 | 51.5 | 56.8 | 63.6 | 68.5 | 69.5 | 64.4 | 57.0 | 46.2 | 40.8 | 51.2 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1961 | 1985 | 1967 | 1974 | 1988 | 1976 | 1962 | 1986 |
| Lowest Mean Temperature (F) | 28.5 | 31.6 | 38.1 | 42.2 | 49.0 | 55.2 | 60.4 | 60.8 | 55.4 | 47.5 | 33.8 | 29.9 | 48.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1980 | 1970 | 1990 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 30.5 | 32.4 | 34.2 | 37.1 | 41.8 | 47.4 | 50.3 | 50.4 | 46.4 | 40.7 | 36.1 | 31.6 | 39.9 |
| Highest Mean Min. Temperature (F) | 34.8 | 37.7 | 38.5 | 39.8 | 45.5 | 51.4 | 53.2 | 53.5 | 50.0 | 45.2 | 39.6 | 36.1 | 41.4 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1990 | 1987 | 1969 | 1975 | 1977 | 1963 | 1988 | 1965 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 21.7 | 25.1 | 30.6 | 32.5 | 39.8 | 44.3 | 47.6 | 46.4 | 42.3 | 37.9 | 27.4 | 24.5 | 37.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1964 | 1976 | 1984 | 1973 | 1965 | 1972 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 11.12 | 8.31 | 7.85 | 5.36 | 3.95 | 2.67 | 0.85 | 1.33 | 2.99 | 5.32 | 10.58 | 11.82 | 72.15 |
| Highest Precipitation (in.) | 21.10 | 18.91 | 12.87 | 8.47 | 8.02 | 8.03 | 5.82 | 5.25 | 7.56 | 10.43 | 23.26 | 26.27 | 88.91 |
| Year Highest Occurred | 1970 | 1961 | 1972 | 1972 | 1984 | 1981 | 1983 | 1968 | 1986 | 1967 | 1973 | 1964 | 1971 |
| Lowest Precipitation (in.) | 1.29 | 2.18 | 1.89 | 2.21 | 2.00 | 0.53 | 0.00 | 0.00 | 0.07 | 0.05 | 2.23 | 2.98 | 53.12 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1966 | 1966 | 1965 | 1970 | 1988 | 1975 | 1987 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 899. | 711. | 679. | 531. | 372. | 190. | 79. | 91. | 184. | 425. | 681. | 874. | 5716. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 13. | 45. | 69. | 22. | 0. | 0. | 0. | 149. |