| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.5 | 50.1 | 56.8 | 64.7 | 74.5 | 84.7 | 94.0 | 91.5 | 81.6 | 69.5 | 53.2 | 42.9 | 67.2 |
| Highest Mean Max. Temperature (F) | 50.3 | 57.8 | 64.8 | 74.3 | 82.1 | 93.2 | 98.3 | 97.0 | 88.3 | 79.1 | 58.9 | 49.6 | 70.3 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1961 | 1988 | 1970 | 1979 | 1988 | 1976 | 1981 | 1981 |
| Lowest Mean Max. Temperature (F) | 32.1 | 40.7 | 51.0 | 52.2 | 65.6 | 76.4 | 89.3 | 82.6 | 73.8 | 60.3 | 45.9 | 33.8 | 64.3 |
| Year Lowest Occurred | 1982 | 1989 | 1973 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1984 | 1985 | 1978 | 1982 |
| Mean Temperature (F) | 29.4 | 36.1 | 41.7 | 48.7 | 58.3 | 67.4 | 74.9 | 72.3 | 62.9 | 51.4 | 38.5 | 29.8 | 51.0 |
| Highest Mean Temperature (F) | 37.8 | 43.2 | 47.8 | 54.8 | 63.5 | 73.9 | 77.4 | 77.8 | 67.3 | 56.7 | 43.0 | 37.8 | 53.7 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1990 | 1973 | 1961 | 1988 | 1967 | 1979 | 1988 | 1967 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 17.9 | 26.2 | 36.8 | 39.9 | 52.1 | 62.0 | 70.1 | 66.8 | 57.2 | 45.3 | 32.9 | 18.3 | 49.4 |
| Year Lowest Occurred | 1982 | 1989 | 1964 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1969 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 16.3 | 22.0 | 26.5 | 32.6 | 42.0 | 50.1 | 55.6 | 53.1 | 44.1 | 33.3 | 23.7 | 16.6 | 34.7 |
| Highest Mean Min. Temperature (F) | 25.3 | 31.4 | 34.0 | 38.9 | 47.3 | 56.1 | 59.3 | 59.1 | 50.0 | 39.0 | 29.6 | 28.5 | 38.0 |
| Year Highest Occurred | 1986 | 1968 | 1983 | 1990 | 1973 | 1977 | 1975 | 1967 | 1967 | 1979 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 3.6 | 11.7 | 19.8 | 27.5 | 38.4 | 45.7 | 49.5 | 47.8 | 38.3 | 29.1 | 15.7 | 1.5 | 31.4 |
| Year Lowest Occurred | 1982 | 1989 | 1964 | 1967 | 1965 | 1966 | 1966 | 1985 | 1970 | 1990 | 1990 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.49 | 0.51 | 0.46 | 0.52 | 0.58 | 0.49 | 0.22 | 0.36 | 0.38 | 0.34 | 0.56 | 0.53 | 5.44 |
| Highest Precipitation (in.) | 1.81 | 2.40 | 1.66 | 2.18 | 2.93 | 2.04 | 1.51 | 2.67 | 0.96 | 1.44 | 1.68 | 1.87 | 10.90 |
| Year Highest Occurred | 1969 | 1962 | 1978 | 1990 | 1963 | 1967 | 1976 | 1983 | 1976 | 1984 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.03 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 | 2.76 |
| Year Lowest Occurred | 1989 | 1964 | 1976 | 1962 | 1975 | 1981 | 1990 | 1980 | 1987 | 1977 | 1974 | 1976 | 1986 |
| Heating Degree Days (F) | 1104. | 809. | 722. | 494. | 229. | 59. | 0. | 14. | 130. | 422. | 795. | 1091. | 5869. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 21. | 131. | 307. | 240. | 67. | 0. | 0. | 0. | 766. |