| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.6 | 51.8 | 58.4 | 66.1 | 75.5 | 84.5 | 93.1 | 91.2 | 82.1 | 70.6 | 54.7 | 44.7 | 68.0 |
| Highest Mean Max. Temperature (F) | 50.9 | 60.1 | 67.1 | 73.8 | 84.2 | 92.1 | 97.0 | 96.2 | 89.9 | 78.7 | 62.1 | 50.7 | 70.6 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1985 | 1966 | 1974 | 1968 | 1969 | 1969 | 1978 | 1976 | 1980 | 1966 |
| Lowest Mean Max. Temperature (F) | 33.7 | 39.7 | 52.5 | 54.0 | 66.2 | 77.8 | 87.0 | 83.9 | 72.7 | 62.2 | 46.4 | 33.0 | 64.2 |
| Year Lowest Occurred | 1982 | 1989 | 1962 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1982 |
| Mean Temperature (F) | 31.3 | 38.4 | 43.6 | 50.1 | 59.1 | 67.5 | 74.6 | 72.4 | 63.7 | 53.1 | 40.7 | 32.3 | 52.2 |
| Highest Mean Temperature (F) | 39.6 | 45.3 | 50.0 | 55.2 | 65.4 | 73.1 | 77.7 | 77.7 | 68.6 | 58.8 | 44.9 | 39.5 | 55.2 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1962 | 1966 | 1961 | 1968 | 1971 | 1981 | 1978 | 1967 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 22.9 | 28.0 | 40.2 | 42.3 | 52.9 | 62.5 | 68.0 | 67.0 | 57.3 | 47.6 | 35.3 | 19.7 | 49.8 |
| Year Lowest Occurred | 1982 | 1989 | 1962 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1969 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 19.0 | 24.9 | 28.7 | 34.0 | 42.6 | 50.3 | 56.1 | 53.7 | 45.3 | 35.6 | 26.7 | 19.9 | 36.4 |
| Highest Mean Min. Temperature (F) | 28.6 | 32.0 | 35.9 | 39.3 | 47.0 | 56.7 | 59.6 | 59.2 | 51.4 | 41.9 | 32.3 | 29.4 | 40.3 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1990 | 1973 | 1977 | 1971 | 1971 | 1981 | 1979 | 1981 | 1981 | 1981 |
| Lowest Mean Min. Temperature (F) | 10.2 | 16.2 | 23.1 | 28.5 | 38.6 | 45.7 | 48.9 | 49.4 | 40.5 | 30.1 | 18.8 | 6.4 | 33.3 |
| Year Lowest Occurred | 1963 | 1964 | 1977 | 1975 | 1988 | 1984 | 1983 | 1985 | 1970 | 1969 | 1990 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.50 | 0.55 | 0.46 | 0.62 | 0.59 | 0.53 | 0.24 | 0.36 | 0.42 | 0.38 | 0.57 | 0.61 | 5.83 |
| Highest Precipitation (in.) | 1.92 | 2.72 | 1.54 | 2.90 | 2.42 | 1.65 | 1.16 | 1.59 | 1.93 | 1.55 | 1.79 | 1.98 | 12.27 |
| Year Highest Occurred | 1969 | 1962 | 1983 | 1990 | 1987 | 1970 | 1979 | 1983 | 1983 | 1984 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 1.88 |
| Year Lowest Occurred | 1989 | 1970 | 1976 | 1986 | 1974 | 1986 | 1990 | 1981 | 1987 | 1978 | 1990 | 1989 | 1986 |
| Heating Degree Days (F) | 1045. | 745. | 663. | 452. | 213. | 58. | 0. | 12. | 113. | 376. | 729. | 1014. | 5420. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 30. | 133. | 301. | 242. | 74. | 7. | 0. | 0. | 792. |