| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.9 | 41.8 | 51.0 | 60.9 | 70.8 | 80.8 | 90.4 | 88.4 | 77.5 | 65.1 | 48.2 | 36.8 | 62.2 |
| Highest Mean Max. Temperature (F) | 43.9 | 50.6 | 59.9 | 71.5 | 78.1 | 88.1 | 96.1 | 95.1 | 86.3 | 74.2 | 54.9 | 44.7 | 65.6 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1966 | 1974 | 1985 | 1967 | 1990 | 1988 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 24.6 | 30.4 | 40.4 | 50.8 | 63.4 | 73.7 | 85.3 | 79.5 | 68.9 | 57.8 | 37.7 | 24.5 | 58.5 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1977 | 1963 | 1982 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 26.1 | 31.8 | 38.9 | 47.0 | 56.1 | 65.1 | 73.0 | 71.2 | 61.1 | 50.2 | 37.7 | 27.8 | 48.8 |
| Highest Mean Temperature (F) | 33.1 | 39.8 | 46.6 | 53.6 | 61.1 | 71.2 | 77.9 | 76.4 | 68.6 | 57.7 | 42.8 | 34.5 | 51.1 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1974 | 1985 | 1967 | 1990 | 1988 | 1965 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 16.0 | 20.1 | 30.8 | 39.7 | 51.0 | 60.0 | 68.4 | 65.3 | 54.7 | 44.7 | 27.8 | 14.9 | 44.9 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1977 | 1984 | 1983 | 1968 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 17.3 | 21.8 | 26.8 | 33.2 | 41.3 | 49.3 | 55.6 | 53.8 | 44.7 | 35.1 | 27.1 | 18.8 | 35.4 |
| Highest Mean Min. Temperature (F) | 25.8 | 29.0 | 33.3 | 38.5 | 45.3 | 54.3 | 59.7 | 59.0 | 51.8 | 41.1 | 32.0 | 26.2 | 37.4 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1990 | 1987 | 1974 | 1985 | 1971 | 1963 | 1988 | 1981 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 7.3 | 9.4 | 19.8 | 28.6 | 38.0 | 44.9 | 50.6 | 49.6 | 39.4 | 31.6 | 17.8 | 5.3 | 31.2 |
| Year Lowest Occurred | 1979 | 1964 | 1976 | 1975 | 1975 | 1984 | 1983 | 1975 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.25 | 1.08 | 1.14 | 0.86 | 0.91 | 0.84 | 0.25 | 0.42 | 0.58 | 0.69 | 1.36 | 1.32 | 10.70 |
| Highest Precipitation (in.) | 4.07 | 4.60 | 2.88 | 2.59 | 2.36 | 2.73 | 0.98 | 3.39 | 2.19 | 2.31 | 3.27 | 5.24 | 15.70 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1963 | 1962 | 1984 | 1965 | 1968 | 1961 | 1975 | 1988 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.13 | 0.05 | 0.12 | 0.01 | 0.02 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 4.85 |
| Year Lowest Occurred | 1961 | 1988 | 1976 | 1977 | 1969 | 1966 | 1988 | 1988 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1206. | 930. | 809. | 540. | 285. | 95. | 6. | 27. | 181. | 459. | 819. | 1153. | 6510. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 98. | 254. | 219. | 64. | 0. | 0. | 0. | 644. |