| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 28.3 | 34.6 | 41.3 | 50.7 | 61.6 | 71.1 | 81.0 | 79.7 | 69.1 | 56.3 | 39.0 | 29.4 | 53.5 |
| Highest Mean Max. Temperature (F) | 33.1 | 44.8 | 48.1 | 61.6 | 68.0 | 78.7 | 86.5 | 86.1 | 77.8 | 66.5 | 44.4 | 34.9 | 55.9 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1966 | 1974 | 1985 | 1967 | 1990 | 1988 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 18.7 | 28.2 | 35.6 | 40.9 | 56.6 | 65.3 | 74.8 | 72.3 | 59.7 | 49.8 | 31.2 | 18.9 | 50.1 |
| Year Lowest Occurred | 1985 | 1985 | 1964 | 1975 | 1977 | 1964 | 1983 | 1968 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 19.2 | 23.7 | 30.0 | 38.4 | 47.4 | 55.7 | 62.7 | 61.1 | 51.9 | 41.8 | 30.1 | 20.9 | 40.2 |
| Highest Mean Temperature (F) | 25.8 | 34.5 | 35.1 | 44.0 | 51.6 | 61.9 | 67.4 | 66.7 | 59.1 | 48.0 | 33.8 | 27.8 | 42.3 |
| Year Highest Occurred | 1967 | 1963 | 1972 | 1987 | 1969 | 1977 | 1975 | 1967 | 1967 | 1963 | 1965 | 1962 | 1963 |
| Lowest Mean Temperature (F) | 6.7 | 14.2 | 24.1 | 31.5 | 43.1 | 51.8 | 56.9 | 56.2 | 44.2 | 36.0 | 20.8 | 8.2 | 35.0 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1984 | 1984 | 1986 | 1985 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 10.0 | 12.8 | 18.6 | 26.0 | 33.1 | 40.3 | 44.4 | 42.6 | 34.7 | 27.2 | 21.1 | 12.4 | 26.9 |
| Highest Mean Min. Temperature (F) | 19.7 | 24.1 | 25.2 | 29.8 | 37.7 | 45.6 | 50.4 | 47.2 | 42.9 | 35.5 | 26.1 | 21.5 | 30.1 |
| Year Highest Occurred | 1967 | 1963 | 1983 | 1990 | 1963 | 1977 | 1975 | 1967 | 1963 | 1963 | 1963 | 1962 | 1963 |
| Lowest Mean Min. Temperature (F) | -5.9 | 0.1 | 9.8 | 19.6 | 28.9 | 36.8 | 38.8 | 35.7 | 28.5 | 21.3 | 10.4 | -2.5 | 19.8 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1982 | 1984 | 1985 | 1986 | 1985 | 1988 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 2.84 | 2.10 | 2.11 | 1.72 | 1.58 | 1.68 | 0.60 | 0.87 | 1.22 | 1.68 | 2.76 | 3.04 | 22.20 |
| Highest Precipitation (in.) | 6.84 | 6.11 | 4.67 | 4.10 | 3.67 | 4.56 | 1.85 | 2.91 | 3.48 | 6.81 | 7.55 | 11.09 | 32.95 |
| Year Highest Occurred | 1969 | 1986 | 1974 | 1965 | 1980 | 1964 | 1983 | 1965 | 1985 | 1962 | 1973 | 1964 | 1982 |
| Lowest Precipitation (in.) | 0.21 | 0.22 | 0.41 | 0.02 | 0.39 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.27 | 14.05 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1966 | 1961 | 1971 | 1970 | 1987 | 1987 | 1976 | 1986 | 1976 |
| Heating Degree Days (F) | 1420. | 1156. | 1085. | 798. | 546. | 285. | 118. | 157. | 405. | 719. | 1047. | 1367. | 9103. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 47. | 36. | 12. | 0. | 0. | 0. | 101. |