| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.3 | 50.7 | 57.2 | 67.9 | 76.5 | 87.7 | 93.0 | 89.7 | 81.3 | 70.5 | 56.8 | 46.7 | 68.6 |
| Highest Mean Max. Temperature (F) | 58.0 | 59.1 | 66.9 | 76.0 | 83.4 | 94.0 | 96.6 | 95.1 | 85.8 | 76.1 | 64.6 | 57.8 | 72.4 |
| Year Highest Occurred | 1986 | 1970 | 1989 | 1981 | 1974 | 1990 | 1980 | 1970 | 1977 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 28.9 | 36.6 | 46.3 | 60.2 | 70.5 | 81.1 | 88.0 | 84.8 | 75.2 | 61.5 | 43.4 | 33.5 | 65.9 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1983 | 1969 | 1990 | 1967 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 29.8 | 35.1 | 41.7 | 51.8 | 61.1 | 71.0 | 77.1 | 74.3 | 65.8 | 53.6 | 40.5 | 31.1 | 52.7 |
| Highest Mean Temperature (F) | 39.5 | 41.8 | 47.8 | 59.6 | 65.6 | 75.6 | 80.3 | 79.8 | 71.1 | 59.3 | 46.4 | 41.2 | 56.6 |
| Year Highest Occurred | 1986 | 1970 | 1986 | 1981 | 1974 | 1981 | 1970 | 1970 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 16.1 | 24.0 | 31.5 | 46.1 | 56.9 | 67.1 | 72.8 | 71.5 | 61.6 | 48.4 | 31.1 | 20.8 | 50.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1983 | 1983 | 1983 | 1990 | 1968 | 1965 | 1976 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 14.2 | 19.5 | 26.1 | 35.7 | 45.6 | 54.2 | 61.2 | 59.0 | 50.2 | 36.6 | 24.3 | 15.5 | 36.8 |
| Highest Mean Min. Temperature (F) | 21.5 | 24.4 | 32.5 | 43.2 | 50.8 | 58.3 | 66.6 | 65.7 | 57.7 | 42.9 | 29.9 | 24.6 | 40.8 |
| Year Highest Occurred | 1969 | 1970 | 1981 | 1981 | 1969 | 1981 | 1969 | 1969 | 1963 | 1974 | 1970 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | 3.3 | 11.4 | 16.7 | 31.9 | 41.2 | 50.7 | 57.5 | 54.7 | 46.3 | 33.1 | 18.7 | 6.9 | 34.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1990 | 1983 | 1990 | 1990 | 1971 | 1982 | 1985 | 1990 | 1988 |
| Mean Precipitation (in.) | 0.32 | 0.31 | 0.78 | 0.88 | 1.25 | 1.25 | 2.09 | 1.99 | 0.90 | 0.57 | 0.43 | 0.42 | 11.19 |
| Highest Precipitation (in.) | 0.94 | 1.39 | 2.34 | 2.99 | 2.60 | 4.26 | 5.14 | 4.37 | 2.73 | 2.55 | 1.49 | 0.97 | 17.90 |
| Year Highest Occurred | 1988 | 1987 | 1979 | 1980 | 1979 | 1961 | 1990 | 1984 | 1976 | 1984 | 1972 | 1979 | 1990 |
| Lowest Precipitation (in.) | 0.04 | 0.00 | 0.05 | 0.00 | 0.30 | 0.00 | 0.09 | 0.51 | 0.06 | 0.00 | 0.00 | 0.00 | 6.27 |
| Year Lowest Occurred | 1969 | 1970 | 1966 | 1963 | 1965 | 1990 | 1987 | 1962 | 1975 | 1988 | 1989 | 1970 | 1966 |
| Heating Degree Days (F) | 1091. | 837. | 722. | 396. | 152. | 10. | 0. | 0. | 62. | 357. | 735. | 1051. | 5413. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 31. | 190. | 375. | 291. | 86. | 0. | 0. | 0. | 973. |