| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.5 | 40.5 | 50.8 | 62.4 | 71.9 | 81.4 | 91.2 | 90.0 | 79.0 | 65.3 | 47.7 | 35.6 | 62.4 |
| Highest Mean Max. Temperature (F) | 39.7 | 52.9 | 59.3 | 73.6 | 78.0 | 92.4 | 96.7 | 97.5 | 88.7 | 78.2 | 55.2 | 42.0 | 66.3 |
| Year Highest Occurred | 1990 | 1963 | 1978 | 1987 | 1987 | 1961 | 1961 | 1971 | 1990 | 1988 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 22.9 | 29.9 | 40.3 | 52.8 | 64.0 | 74.7 | 84.3 | 82.5 | 69.3 | 59.1 | 37.0 | 22.8 | 57.4 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1984 | 1983 | 1976 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 24.7 | 30.3 | 39.3 | 48.4 | 56.5 | 65.2 | 73.3 | 72.0 | 61.7 | 49.9 | 37.5 | 27.1 | 48.8 |
| Highest Mean Temperature (F) | 32.7 | 41.0 | 46.7 | 55.5 | 60.8 | 72.8 | 78.8 | 77.5 | 69.4 | 58.6 | 40.3 | 33.5 | 50.5 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1987 | 1961 | 1985 | 1971 | 1990 | 1988 | 1981 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 12.6 | 17.6 | 29.6 | 42.4 | 51.7 | 60.7 | 68.3 | 66.8 | 55.7 | 45.4 | 27.1 | 13.6 | 44.1 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1984 | 1986 | 1976 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 15.9 | 20.1 | 27.8 | 34.3 | 41.0 | 48.9 | 55.3 | 54.0 | 44.4 | 34.3 | 27.2 | 18.6 | 35.2 |
| Highest Mean Min. Temperature (F) | 26.7 | 30.9 | 34.5 | 39.1 | 44.0 | 54.0 | 61.4 | 58.9 | 50.0 | 40.0 | 31.5 | 27.7 | 37.5 |
| Year Highest Occurred | 1978 | 1978 | 1986 | 1990 | 1980 | 1977 | 1985 | 1961 | 1990 | 1979 | 1973 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 2.3 | 5.1 | 18.8 | 30.0 | 37.6 | 45.8 | 49.8 | 47.8 | 39.2 | 30.6 | 17.1 | 4.3 | 30.6 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1968 | 1964 | 1976 | 1986 | 1987 | 1971 | 1976 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 3.92 | 2.76 | 2.46 | 1.75 | 1.79 | 1.57 | 0.56 | 0.75 | 1.24 | 1.70 | 3.43 | 3.70 | 25.63 |
| Highest Precipitation (in.) | 11.90 | 6.30 | 7.09 | 5.55 | 4.18 | 4.63 | 2.35 | 2.90 | 3.72 | 5.83 | 9.85 | 9.47 | 39.75 |
| Year Highest Occurred | 1970 | 1982 | 1983 | 1978 | 1980 | 1964 | 1976 | 1968 | 1985 | 1975 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.26 | 0.27 | 0.29 | 0.14 | 0.26 | 0.28 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.28 | 17.80 |
| Year Lowest Occurred | 1985 | 1965 | 1969 | 1972 | 1974 | 1961 | 1979 | 1982 | 1990 | 1987 | 1976 | 1989 | 1987 |
| Heating Degree Days (F) | 1249. | 972. | 797. | 498. | 271. | 100. | 10. | 26. | 169. | 468. | 825. | 1175. | 6560. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 106. | 267. | 243. | 70. | 0. | 0. | 0. | 694. |