| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.8 | 38.9 | 48.1 | 59.1 | 68.5 | 76.7 | 84.8 | 84.4 | 73.4 | 57.9 | 40.2 | 32.0 | 58.0 |
| Highest Mean Max. Temperature (F) | 39.0 | 46.1 | 54.7 | 66.2 | 73.5 | 83.3 | 94.2 | 93.4 | 85.3 | 65.9 | 44.6 | 38.0 | 60.8 |
| Year Highest Occurred | 1990 | 1968 | 1990 | 1977 | 1966 | 1961 | 1985 | 1967 | 1967 | 1988 | 1962 | 1962 | 1967 |
| Lowest Mean Max. Temperature (F) | 21.4 | 31.6 | 42.1 | 53.4 | 62.4 | 69.9 | 75.6 | 76.7 | 61.0 | 53.0 | 27.9 | 23.1 | 55.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1974 | 1981 | 1983 | 1964 | 1986 | 1990 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 25.3 | 30.7 | 37.0 | 45.2 | 53.3 | 60.8 | 66.1 | 65.4 | 56.2 | 45.1 | 34.0 | 26.5 | 45.5 |
| Highest Mean Temperature (F) | 34.4 | 35.8 | 41.6 | 51.9 | 57.0 | 65.4 | 72.0 | 70.4 | 63.2 | 51.2 | 38.6 | 33.3 | 47.9 |
| Year Highest Occurred | 1990 | 1961 | 1990 | 1990 | 1987 | 1986 | 1985 | 1961 | 1967 | 1988 | 1962 | 1962 | 1990 |
| Lowest Mean Temperature (F) | 10.7 | 22.2 | 30.1 | 40.2 | 49.4 | 57.1 | 61.0 | 60.2 | 49.8 | 41.2 | 21.8 | 17.1 | 43.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1974 | 1981 | 1983 | 1975 | 1986 | 1984 | 1985 | 1983 | 1975 |
| Mean Min. Temperature (F) | 18.7 | 22.6 | 25.7 | 31.3 | 38.1 | 44.8 | 47.3 | 46.4 | 38.9 | 32.3 | 27.8 | 20.9 | 32.9 |
| Highest Mean Min. Temperature (F) | 29.7 | 29.1 | 31.5 | 37.7 | 43.6 | 48.6 | 53.2 | 53.1 | 43.0 | 36.5 | 34.1 | 29.3 | 36.4 |
| Year Highest Occurred | 1990 | 1961 | 1986 | 1990 | 1980 | 1986 | 1990 | 1990 | 1978 | 1988 | 1989 | 1980 | 1990 |
| Lowest Mean Min. Temperature (F) | -0.1 | 12.8 | 17.4 | 26.4 | 34.3 | 39.1 | 43.2 | 41.6 | 34.0 | 24.8 | 15.7 | 10.2 | 29.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1979 | 1962 | 1962 | 1969 | 1975 | 1974 | 1985 | 1978 | 1979 |
| Mean Precipitation (in.) | 3.31 | 2.53 | 2.20 | 1.87 | 2.22 | 1.86 | 1.16 | 1.35 | 1.32 | 1.64 | 3.68 | 3.97 | 27.11 |
| Highest Precipitation (in.) | 6.97 | 5.82 | 4.28 | 3.96 | 5.73 | 4.68 | 3.18 | 3.56 | 3.75 | 4.53 | 7.73 | 6.94 | 36.13 |
| Year Highest Occurred | 1974 | 1961 | 1983 | 1982 | 1984 | 1981 | 1978 | 1976 | 1986 | 1968 | 1973 | 1977 | 1983 |
| Lowest Precipitation (in.) | 0.02 | 0.65 | 0.10 | 0.29 | 0.89 | 0.55 | 0.00 | 0.00 | 0.00 | 0.08 | 0.60 | 0.80 | 17.59 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1966 | 1974 | 1985 | 1969 | 1990 | 1974 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 1231. | 960. | 868. | 594. | 363. | 153. | 60. | 85. | 287. | 617. | 930. | 1194. | 7342. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 27. | 94. | 97. | 23. | 0. | 0. | 0. | 241. |