| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 32.0 | 38.7 | 48.5 | 59.3 | 69.3 | 79.6 | 89.3 | 87.3 | 76.3 | 63.7 | 46.8 | 34.2 | 60.4 |
| Highest Mean Max. Temperature (F) | 41.3 | 50.1 | 58.2 | 69.6 | 78.0 | 86.7 | 93.3 | 91.5 | 83.9 | 73.5 | 54.3 | 42.4 | 62.5 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1969 | 1988 | 1989 | 1981 | 1990 | 1988 | 1962 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 23.2 | 28.8 | 39.0 | 50.0 | 63.6 | 73.3 | 85.1 | 79.0 | 68.7 | 55.3 | 38.6 | 24.9 | 56.5 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1983 | 1967 | 1982 | 1968 | 1986 | 1971 | 1985 | 1985 | 1984 |
| Mean Temperature (F) | 23.1 | 28.9 | 37.9 | 46.8 | 55.6 | 65.0 | 73.1 | 71.4 | 61.0 | 49.8 | 36.5 | 25.3 | 47.9 |
| Highest Mean Temperature (F) | 31.6 | 39.0 | 46.5 | 53.8 | 62.0 | 70.9 | 76.5 | 74.5 | 68.2 | 57.3 | 41.4 | 33.0 | 50.1 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1987 | 1969 | 1977 | 1989 | 1969 | 1990 | 1988 | 1965 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 15.1 | 17.6 | 28.0 | 40.2 | 51.0 | 60.8 | 70.2 | 65.5 | 54.4 | 44.3 | 29.3 | 15.9 | 44.8 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1975 | 1964 | 1986 | 1968 | 1965 | 1969 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 14.1 | 19.0 | 27.3 | 34.3 | 41.8 | 50.2 | 56.9 | 55.4 | 45.6 | 35.7 | 26.1 | 16.4 | 35.2 |
| Highest Mean Min. Temperature (F) | 25.2 | 28.7 | 34.7 | 39.2 | 46.0 | 55.4 | 60.0 | 59.5 | 52.5 | 41.1 | 30.4 | 25.1 | 37.7 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1989 | 1969 | 1977 | 1975 | 1983 | 1990 | 1988 | 1970 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 4.9 | 3.6 | 17.0 | 29.5 | 38.2 | 47.2 | 52.7 | 51.4 | 39.6 | 31.1 | 19.2 | 5.0 | 31.8 |
| Year Lowest Occurred | 1964 | 1964 | 1964 | 1970 | 1975 | 1975 | 1963 | 1978 | 1965 | 1970 | 1979 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.35 | 1.35 | 1.46 | 1.72 | 1.81 | 1.54 | 0.76 | 1.01 | 1.38 | 1.49 | 1.46 | 1.32 | 16.65 |
| Highest Precipitation (in.) | 3.56 | 3.36 | 3.82 | 4.80 | 4.59 | 4.75 | 1.96 | 5.01 | 5.21 | 4.11 | 3.59 | 4.50 | 30.19 |
| Year Highest Occurred | 1969 | 1986 | 1982 | 1986 | 1980 | 1967 | 1984 | 1977 | 1982 | 1981 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.05 | 0.11 | 0.36 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 8.75 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1961 | 1969 | 1978 | 1988 | 1985 | 1974 | 1978 | 1976 | 1976 | 1988 |
| Heating Degree Days (F) | 1299. | 1011. | 840. | 546. | 298. | 91. | 0. | 13. | 178. | 471. | 855. | 1231. | 6833. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 91. | 251. | 211. | 58. | 0. | 0. | 0. | 617. |