| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.9 | 47.5 | 53.8 | 59.2 | 66.0 | 72.4 | 78.1 | 78.9 | 73.2 | 63.0 | 51.1 | 43.5 | 60.8 |
| Highest Mean Max. Temperature (F) | 48.9 | 52.8 | 58.8 | 65.0 | 69.9 | 77.3 | 85.8 | 87.1 | 79.3 | 70.8 | 55.1 | 48.1 | 63.4 |
| Year Highest Occurred | 1990 | 1968 | 1986 | 1987 | 1969 | 1961 | 1985 | 1967 | 1967 | 1987 | 1990 | 1974 | 1987 |
| Lowest Mean Max. Temperature (F) | 30.4 | 37.8 | 48.9 | 54.3 | 58.8 | 66.9 | 71.7 | 73.0 | 68.0 | 58.7 | 40.8 | 32.4 | 58.8 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1963 | 1962 | 1980 | 1963 | 1976 | 1978 | 1984 | 1985 | 1985 | 1964 |
| Mean Temperature (F) | 38.0 | 41.6 | 45.8 | 50.4 | 56.3 | 62.4 | 67.2 | 67.7 | 62.9 | 54.7 | 45.7 | 39.0 | 52.6 |
| Highest Mean Temperature (F) | 43.7 | 45.5 | 50.4 | 55.0 | 59.9 | 66.0 | 72.6 | 73.1 | 67.5 | 60.4 | 49.5 | 43.0 | 55.0 |
| Year Highest Occurred | 1990 | 1968 | 1986 | 1987 | 1987 | 1961 | 1985 | 1967 | 1967 | 1988 | 1987 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 26.0 | 32.6 | 41.1 | 45.7 | 52.0 | 58.0 | 63.2 | 64.2 | 59.0 | 51.0 | 36.3 | 29.1 | 50.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1976 | 1972 | 1971 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.0 | 35.5 | 37.8 | 41.5 | 46.6 | 52.5 | 56.3 | 56.4 | 52.5 | 46.3 | 40.2 | 34.3 | 44.4 |
| Highest Mean Min. Temperature (F) | 39.6 | 39.3 | 42.7 | 45.0 | 50.2 | 55.7 | 59.4 | 60.0 | 56.6 | 52.5 | 44.9 | 38.5 | 46.5 |
| Year Highest Occurred | 1967 | 1983 | 1983 | 1990 | 1987 | 1969 | 1985 | 1977 | 1990 | 1988 | 1987 | 1973 | 1987 |
| Lowest Mean Min. Temperature (F) | 21.5 | 27.4 | 33.2 | 36.4 | 43.3 | 48.6 | 54.3 | 52.5 | 47.5 | 41.5 | 31.8 | 25.7 | 42.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1966 | 1965 | 1973 | 1969 | 1965 | 1971 | 1985 | 1985 | 1972 |
| Mean Precipitation (in.) | 11.37 | 9.17 | 7.80 | 5.53 | 3.66 | 2.57 | 0.99 | 1.58 | 3.24 | 5.60 | 11.07 | 12.35 | 74.93 |
| Highest Precipitation (in.) | 21.65 | 21.72 | 13.23 | 11.03 | 8.22 | 8.76 | 5.90 | 6.67 | 6.65 | 12.33 | 20.97 | 23.52 | 91.52 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1981 | 1984 | 1981 | 1983 | 1968 | 1972 | 1990 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.32 | 3.10 | 2.13 | 2.08 | 1.10 | 0.34 | 0.00 | 0.00 | 0.03 | 0.10 | 3.18 | 3.44 | 52.80 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1982 | 1965 | 1984 | 1970 | 1975 | 1987 | 1976 | 1985 | 1965 |
| Heating Degree Days (F) | 837. | 655. | 595. | 438. | 270. | 115. | 33. | 44. | 119. | 319. | 579. | 806. | 4810. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 37. | 101. | 127. | 56. | 0. | 0. | 0. | 321. |