| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.0 | 42.5 | 50.6 | 60.5 | 70.6 | 81.4 | 85.6 | 82.3 | 74.8 | 63.4 | 49.0 | 39.0 | 61.4 |
| Highest Mean Max. Temperature (F) | 48.0 | 50.2 | 60.9 | 67.7 | 76.4 | 85.9 | 88.8 | 85.9 | 80.3 | 68.9 | 54.6 | 48.5 | 63.8 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1984 | 1990 | 1980 | 1970 | 1979 | 1963 | 1966 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 29.6 | 36.0 | 43.5 | 53.1 | 66.4 | 75.7 | 80.9 | 78.4 | 70.3 | 53.7 | 41.1 | 32.1 | 59.5 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1983 | 1979 | 1965 | 1986 | 1968 | 1986 | 1984 | 1972 | 1967 | 1975 |
| Mean Temperature (F) | 27.1 | 32.4 | 38.8 | 46.8 | 56.2 | 66.4 | 71.4 | 68.7 | 61.7 | 51.1 | 38.4 | 29.2 | 49.0 |
| Highest Mean Temperature (F) | 36.6 | 38.9 | 46.4 | 54.2 | 61.6 | 70.6 | 73.8 | 71.9 | 66.2 | 56.0 | 43.9 | 37.8 | 51.1 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1984 | 1990 | 1972 | 1970 | 1979 | 1963 | 1965 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 21.1 | 25.2 | 33.4 | 40.5 | 52.7 | 61.3 | 68.5 | 65.6 | 58.3 | 44.6 | 32.0 | 22.3 | 46.9 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1973 | 1983 | 1965 | 1986 | 1968 | 1985 | 1984 | 1979 | 1967 | 1975 |
| Mean Min. Temperature (F) | 17.2 | 22.2 | 27.0 | 33.0 | 41.7 | 51.3 | 57.0 | 55.0 | 48.6 | 38.8 | 27.7 | 19.4 | 36.6 |
| Highest Mean Min. Temperature (F) | 25.1 | 27.5 | 32.5 | 40.6 | 46.8 | 55.3 | 60.6 | 58.3 | 52.2 | 43.5 | 34.3 | 27.1 | 38.5 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1984 | 1990 | 1966 | 1969 | 1990 | 1988 | 1965 | 1980 | 1989 |
| Lowest Mean Min. Temperature (F) | 10.1 | 13.6 | 21.3 | 26.9 | 38.3 | 46.9 | 54.2 | 52.5 | 45.2 | 33.5 | 21.8 | 12.5 | 34.0 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1970 | 1983 | 1965 | 1974 | 1975 | 1974 | 1970 | 1979 | 1967 | 1973 |
| Mean Precipitation (in.) | 0.58 | 0.51 | 0.66 | 0.48 | 0.56 | 0.64 | 1.45 | 1.68 | 1.08 | 1.09 | 0.69 | 0.62 | 10.04 |
| Highest Precipitation (in.) | 1.63 | 1.56 | 1.85 | 2.94 | 1.85 | 3.21 | 3.42 | 3.66 | 2.08 | 4.67 | 3.06 | 1.99 | 16.07 |
| Year Highest Occurred | 1983 | 1987 | 1981 | 1985 | 1982 | 1988 | 1975 | 1982 | 1990 | 1972 | 1986 | 1982 | 1986 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.02 | 0.08 | 0.00 | 0.09 | 0.02 | 5.32 |
| Year Lowest Occurred | 1986 | 1970 | 1977 | 1989 | 1972 | 1982 | 1978 | 1985 | 1968 | 1964 | 1989 | 1981 | 1989 |
| Heating Degree Days (F) | 1175. | 913. | 812. | 546. | 281. | 53. | 0. | 9. | 125. | 431. | 798. | 1110. | 6253. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 95. | 201. | 123. | 26. | 0. | 0. | 0. | 453. |