| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.3 | 34.5 | 43.2 | 56.7 | 67.8 | 78.3 | 85.2 | 82.7 | 73.5 | 61.6 | 44.9 | 31.9 | 57.5 |
| Highest Mean Max. Temperature (F) | 46.0 | 44.8 | 56.1 | 65.1 | 72.9 | 87.2 | 88.7 | 87.9 | 81.3 | 69.4 | 52.6 | 48.3 | 62.3 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1981 | 1969 | 1977 | 1976 | 1983 | 1979 | 1963 | 1962 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 20.2 | 25.8 | 33.6 | 48.2 | 62.4 | 70.3 | 80.1 | 76.2 | 62.9 | 50.8 | 35.7 | 23.4 | 53.9 |
| Year Lowest Occurred | 1973 | 1989 | 1965 | 1968 | 1968 | 1969 | 1986 | 1968 | 1965 | 1969 | 1972 | 1972 | 1973 |
| Mean Temperature (F) | 17.0 | 21.7 | 30.5 | 42.3 | 51.7 | 60.4 | 66.9 | 64.8 | 56.1 | 45.2 | 32.2 | 20.1 | 42.4 |
| Highest Mean Temperature (F) | 30.8 | 32.0 | 41.5 | 47.6 | 55.6 | 66.8 | 69.5 | 70.1 | 61.8 | 51.1 | 37.6 | 34.4 | 46.7 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1981 | 1969 | 1977 | 1976 | 1983 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 6.2 | 12.2 | 19.7 | 35.2 | 48.1 | 56.0 | 63.7 | 60.8 | 49.0 | 38.9 | 24.6 | 10.3 | 39.0 |
| Year Lowest Occurred | 1973 | 1973 | 1965 | 1973 | 1968 | 1969 | 1962 | 1968 | 1965 | 1969 | 1972 | 1972 | 1973 |
| Mean Min. Temperature (F) | 4.7 | 9.0 | 17.8 | 27.7 | 35.5 | 42.6 | 48.6 | 46.9 | 38.7 | 28.7 | 19.5 | 8.4 | 27.3 |
| Highest Mean Min. Temperature (F) | 15.5 | 19.1 | 26.9 | 32.1 | 38.9 | 48.7 | 51.5 | 52.2 | 45.0 | 32.8 | 24.5 | 20.5 | 31.1 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1987 | 1988 | 1985 | 1983 | 1990 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -7.9 | -3.0 | 5.8 | 21.8 | 32.8 | 39.9 | 43.3 | 42.2 | 32.5 | 23.7 | 13.2 | -2.8 | 23.7 |
| Year Lowest Occurred | 1973 | 1973 | 1965 | 1973 | 1967 | 1975 | 1972 | 1962 | 1971 | 1976 | 1979 | 1972 | 1964 |
| Mean Precipitation (in.) | 1.39 | 1.16 | 1.30 | 1.48 | 1.40 | 1.22 | 1.41 | 1.45 | 1.35 | 1.60 | 1.41 | 1.67 | 16.84 |
| Highest Precipitation (in.) | 3.40 | 2.75 | 2.50 | 3.31 | 3.97 | 3.56 | 3.10 | 2.91 | 4.88 | 3.76 | 3.71 | 5.11 | 23.88 |
| Year Highest Occurred | 1980 | 1962 | 1981 | 1985 | 1981 | 1969 | 1984 | 1963 | 1961 | 1981 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.21 | 0.40 | 0.32 | 0.58 | 0.09 | 0.02 | 0.13 | 0.34 | 0.17 | 0.14 | 0.12 | 0.31 | 11.35 |
| Year Lowest Occurred | 1961 | 1982 | 1969 | 1989 | 1974 | 1980 | 1962 | 1962 | 1979 | 1988 | 1976 | 1986 | 1976 |
| Heating Degree Days (F) | 1488. | 1212. | 1070. | 681. | 412. | 165. | 26. | 76. | 283. | 614. | 984. | 1392. | 8403. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 27. | 85. | 70. | 16. | 0. | 0. | 0. | 198. |