| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.8 | 41.0 | 47.7 | 56.7 | 65.5 | 73.7 | 83.0 | 83.6 | 73.6 | 60.4 | 43.6 | 35.2 | 58.2 |
| Highest Mean Max. Temperature (F) | 41.6 | 47.1 | 53.9 | 64.9 | 71.7 | 82.0 | 90.8 | 92.5 | 83.9 | 69.6 | 47.7 | 42.2 | 61.5 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1961 | 1990 | 1988 | 1965 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 23.7 | 31.2 | 41.9 | 50.1 | 60.3 | 66.5 | 76.4 | 77.2 | 65.3 | 53.8 | 29.8 | 25.5 | 54.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1970 | 1984 | 1981 | 1983 | 1975 | 1985 | 1984 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 28.6 | 34.0 | 39.2 | 45.7 | 52.8 | 59.6 | 65.5 | 66.2 | 58.4 | 48.4 | 36.9 | 29.4 | 47.1 |
| Highest Mean Temperature (F) | 36.3 | 39.7 | 45.0 | 52.2 | 57.1 | 65.2 | 70.1 | 72.8 | 65.2 | 55.6 | 41.1 | 36.3 | 49.4 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1987 | 1961 | 1985 | 1961 | 1967 | 1988 | 1965 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 14.8 | 23.0 | 33.5 | 40.3 | 48.4 | 55.4 | 61.9 | 60.7 | 53.3 | 43.6 | 23.4 | 19.2 | 43.4 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1970 | 1974 | 1976 | 1981 | 1980 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.3 | 26.9 | 30.7 | 34.7 | 40.1 | 45.4 | 48.1 | 48.7 | 43.1 | 36.3 | 30.2 | 23.4 | 35.8 |
| Highest Mean Min. Temperature (F) | 31.0 | 33.3 | 36.0 | 39.5 | 43.8 | 49.1 | 53.4 | 53.1 | 48.9 | 41.6 | 34.7 | 30.8 | 37.3 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1987 | 1987 | 1970 | 1975 | 1961 | 1963 | 1988 | 1981 | 1966 | 1981 |
| Lowest Mean Min. Temperature (F) | 5.8 | 14.8 | 24.6 | 30.5 | 36.2 | 42.0 | 44.9 | 42.9 | 39.3 | 33.3 | 17.0 | 11.2 | 32.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1970 | 1974 | 1965 | 1966 | 1980 | 1971 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 3.11 | 2.27 | 2.40 | 2.16 | 2.24 | 1.78 | 0.94 | 1.16 | 1.28 | 1.85 | 3.28 | 3.01 | 25.48 |
| Highest Precipitation (in.) | 7.67 | 5.38 | 4.39 | 4.74 | 4.80 | 4.81 | 2.90 | 5.02 | 3.75 | 4.22 | 7.32 | 6.92 | 33.07 |
| Year Highest Occurred | 1970 | 1961 | 1972 | 1978 | 1980 | 1971 | 1987 | 1989 | 1985 | 1990 | 1973 | 1973 | 1975 |
| Lowest Precipitation (in.) | 0.45 | 0.35 | 0.80 | 0.46 | 0.72 | 0.42 | 0.02 | 0.00 | 0.00 | 0.00 | 0.72 | 0.54 | 16.64 |
| Year Lowest Occurred | 1985 | 1967 | 1965 | 1966 | 1966 | 1962 | 1973 | 1988 | 1987 | 1987 | 1969 | 1985 | 1965 |
| Heating Degree Days (F) | 1128. | 868. | 800. | 579. | 378. | 186. | 62. | 82. | 237. | 515. | 843. | 1104. | 6782. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 24. | 78. | 119. | 39. | 0. | 0. | 0. | 260. |