| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.5 | 38.2 | 46.8 | 57.3 | 67.2 | 77.6 | 86.9 | 85.0 | 74.8 | 61.7 | 44.9 | 33.6 | 58.8 |
| Highest Mean Max. Temperature (F) | 38.8 | 47.0 | 57.5 | 68.9 | 73.0 | 86.5 | 92.2 | 91.2 | 83.9 | 72.5 | 50.9 | 39.9 | 62.3 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1966 | 1988 | 1988 | 1981 | 1990 | 1988 | 1965 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 21.5 | 28.4 | 35.1 | 48.0 | 60.4 | 70.5 | 82.6 | 75.4 | 67.2 | 54.1 | 35.9 | 21.4 | 55.0 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1977 | 1964 | 1972 | 1968 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 23.5 | 29.3 | 36.7 | 45.3 | 54.1 | 63.1 | 70.7 | 68.9 | 59.5 | 48.2 | 35.9 | 25.9 | 46.8 |
| Highest Mean Temperature (F) | 30.9 | 38.0 | 46.0 | 53.0 | 58.4 | 70.6 | 75.4 | 74.1 | 68.0 | 57.5 | 41.3 | 32.2 | 49.7 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1988 | 1988 | 1981 | 1990 | 1988 | 1965 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 12.9 | 18.4 | 25.6 | 38.7 | 49.5 | 58.6 | 67.3 | 62.3 | 53.3 | 42.4 | 28.4 | 13.1 | 43.0 |
| Year Lowest Occurred | 1985 | 1985 | 1985 | 1975 | 1975 | 1963 | 1972 | 1968 | 1965 | 1970 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 15.4 | 20.4 | 26.5 | 33.3 | 41.0 | 48.6 | 54.5 | 52.8 | 44.1 | 34.7 | 26.9 | 18.2 | 34.7 |
| Highest Mean Min. Temperature (F) | 24.3 | 29.0 | 34.4 | 39.6 | 45.2 | 54.6 | 58.6 | 57.3 | 52.1 | 42.5 | 31.6 | 25.8 | 37.4 |
| Year Highest Occurred | 1983 | 1986 | 1986 | 1990 | 1987 | 1988 | 1985 | 1983 | 1990 | 1988 | 1965 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 3.7 | 7.2 | 13.6 | 28.7 | 37.0 | 45.0 | 50.9 | 47.8 | 38.3 | 29.0 | 20.0 | 4.7 | 30.9 |
| Year Lowest Occurred | 1985 | 1964 | 1985 | 1970 | 1975 | 1976 | 1962 | 1974 | 1974 | 1976 | 1976 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.00 | 0.89 | 1.18 | 1.21 | 1.53 | 1.04 | 0.63 | 0.71 | 0.87 | 0.90 | 1.21 | 1.04 | 12.21 |
| Highest Precipitation (in.) | 3.54 | 3.58 | 3.35 | 3.13 | 4.17 | 3.39 | 3.33 | 4.05 | 3.22 | 2.53 | 3.29 | 4.60 | 21.88 |
| Year Highest Occurred | 1980 | 1986 | 1989 | 1971 | 1980 | 1967 | 1984 | 1968 | 1982 | 1974 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.13 | 0.07 | 0.11 | 0.15 | 0.26 | 0.08 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.11 | 4.64 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1977 | 1969 | 1974 | 1988 | 1988 | 1987 | 1988 | 1976 | 1989 | 1966 |
| Heating Degree Days (F) | 1287. | 1000. | 877. | 591. | 338. | 128. | 11. | 34. | 209. | 521. | 873. | 1212. | 7081. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 71. | 187. | 155. | 44. | 0. | 0. | 0. | 457. |