| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.2 | 36.5 | 41.0 | 50.9 | 60.7 | 69.1 | 76.1 | 76.0 | 65.6 | 56.5 | 41.5 | 32.5 | 53.1 |
| Highest Mean Max. Temperature (F) | 46.0 | 46.8 | 51.9 | 59.9 | 66.7 | 78.4 | 83.5 | 83.5 | 78.4 | 63.6 | 52.0 | 40.4 | 57.7 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1985 | 1961 | 1985 | 1971 | 1967 | 1965 | 1969 | 1986 | 1987 |
| Lowest Mean Max. Temperature (F) | 7.5 | 18.0 | 32.8 | 39.2 | 55.1 | 63.3 | 68.1 | 68.1 | 52.4 | 47.9 | 20.2 | 18.0 | 48.9 |
| Year Lowest Occurred | 1969 | 1975 | 1967 | 1975 | 1974 | 1981 | 1972 | 1980 | 1965 | 1984 | 1985 | 1983 | 1975 |
| Mean Temperature (F) | 19.4 | 24.5 | 29.8 | 39.0 | 47.8 | 55.0 | 60.1 | 59.8 | 50.6 | 43.4 | 30.4 | 21.6 | 40.1 |
| Highest Mean Temperature (F) | 36.4 | 36.2 | 40.2 | 46.9 | 52.0 | 60.8 | 64.5 | 64.8 | 57.8 | 49.4 | 39.7 | 30.1 | 44.5 |
| Year Highest Occurred | 1986 | 1977 | 1986 | 1987 | 1985 | 1961 | 1985 | 1971 | 1967 | 1965 | 1969 | 1986 | 1987 |
| Lowest Mean Temperature (F) | -5.0 | 6.9 | 19.1 | 29.0 | 44.6 | 51.1 | 54.9 | 53.9 | 41.1 | 36.2 | 10.9 | 4.6 | 36.9 |
| Year Lowest Occurred | 1969 | 1975 | 1965 | 1975 | 1974 | 1981 | 1972 | 1980 | 1965 | 1984 | 1985 | 1983 | 1975 |
| Mean Min. Temperature (F) | 7.5 | 12.5 | 18.5 | 27.0 | 34.8 | 41.0 | 44.2 | 43.5 | 35.5 | 30.2 | 19.3 | 10.6 | 27.1 |
| Highest Mean Min. Temperature (F) | 27.0 | 27.9 | 28.5 | 33.8 | 38.5 | 46.0 | 47.8 | 47.4 | 40.3 | 35.2 | 28.2 | 19.8 | 31.2 |
| Year Highest Occurred | 1986 | 1977 | 1986 | 1987 | 1987 | 1988 | 1975 | 1990 | 1979 | 1965 | 1987 | 1986 | 1987 |
| Lowest Mean Min. Temperature (F) | -17.5 | -4.2 | 4.8 | 18.7 | 31.1 | 37.6 | 40.4 | 39.6 | 29.7 | 24.5 | 1.5 | -8.8 | 24.2 |
| Year Lowest Occurred | 1969 | 1975 | 1965 | 1975 | 1982 | 1966 | 1968 | 1980 | 1965 | 1984 | 1985 | 1983 | 1982 |
| Mean Precipitation (in.) | 0.78 | 0.63 | 0.89 | 1.22 | 2.70 | 3.11 | 1.64 | 1.87 | 1.96 | 0.88 | 0.76 | 0.78 | 17.22 |
| Highest Precipitation (in.) | 1.98 | 2.03 | 1.86 | 2.97 | 6.82 | 7.81 | 5.94 | 5.15 | 6.10 | 2.54 | 2.79 | 2.05 | 26.42 |
| Year Highest Occurred | 1972 | 1986 | 1961 | 1970 | 1981 | 1975 | 1978 | 1977 | 1985 | 1986 | 1990 | 1967 | 1975 |
| Lowest Precipitation (in.) | 0.09 | 0.00 | 0.13 | 0.13 | 0.76 | 0.59 | 0.03 | 0.00 | 0.10 | 0.00 | 0.00 | 0.21 | 8.76 |
| Year Lowest Occurred | 1961 | 1969 | 1976 | 1987 | 1973 | 1961 | 1969 | 1969 | 1979 | 1965 | 1972 | 1986 | 1973 |
| Heating Degree Days (F) | 1414. | 1134. | 1091. | 780. | 533. | 307. | 164. | 194. | 445. | 670. | 1038. | 1345. | 9115. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 12. | 33. | 13. | 0. | 0. | 0. | 65. |