| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.8 | 41.7 | 50.4 | 59.7 | 70.2 | 81.4 | 90.8 | 88.1 | 76.6 | 63.3 | 49.0 | 38.0 | 62.1 |
| Highest Mean Max. Temperature (F) | 41.8 | 49.3 | 58.5 | 69.3 | 77.6 | 88.7 | 94.8 | 92.5 | 83.9 | 72.1 | 53.9 | 47.1 | 64.7 |
| Year Highest Occurred | 1970 | 1963 | 1986 | 1987 | 1969 | 1988 | 1989 | 1982 | 1990 | 1988 | 1965 | 1981 | 1988 |
| Lowest Mean Max. Temperature (F) | 28.2 | 31.5 | 42.5 | 52.2 | 65.2 | 74.6 | 87.1 | 80.5 | 68.8 | 54.8 | 43.7 | 30.9 | 58.7 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1975 | 1977 | 1967 | 1982 | 1968 | 1965 | 1969 | 1979 | 1990 | 1984 |
| Mean Temperature (F) | 29.3 | 34.5 | 42.5 | 50.6 | 60.2 | 70.7 | 79.8 | 77.0 | 65.8 | 54.0 | 41.4 | 31.3 | 53.1 |
| Highest Mean Temperature (F) | 35.8 | 41.5 | 50.2 | 57.7 | 66.8 | 77.1 | 82.9 | 80.9 | 74.2 | 60.9 | 46.6 | 39.1 | 55.5 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1987 | 1969 | 1961 | 1966 | 1982 | 1990 | 1988 | 1965 | 1981 | 1990 |
| Lowest Mean Temperature (F) | 21.4 | 25.3 | 34.8 | 43.6 | 53.9 | 65.1 | 76.3 | 70.4 | 59.4 | 47.3 | 36.7 | 24.1 | 50.4 |
| Year Lowest Occurred | 1973 | 1984 | 1964 | 1975 | 1975 | 1967 | 1986 | 1968 | 1965 | 1969 | 1961 | 1990 | 1984 |
| Mean Min. Temperature (F) | 22.7 | 27.2 | 34.6 | 41.5 | 50.1 | 59.9 | 68.6 | 65.9 | 55.0 | 44.6 | 33.8 | 24.6 | 44.0 |
| Highest Mean Min. Temperature (F) | 30.9 | 34.5 | 41.9 | 47.4 | 56.0 | 65.9 | 71.9 | 69.6 | 64.5 | 49.7 | 39.3 | 32.3 | 46.3 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1969 | 1961 | 1966 | 1981 | 1990 | 1963 | 1965 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | 14.5 | 17.2 | 27.1 | 35.0 | 42.6 | 54.8 | 65.2 | 60.3 | 49.6 | 39.8 | 29.0 | 17.2 | 41.9 |
| Year Lowest Occurred | 1973 | 1989 | 1964 | 1975 | 1975 | 1975 | 1986 | 1968 | 1970 | 1969 | 1985 | 1990 | 1984 |
| Mean Precipitation (in.) | 1.08 | 1.19 | 1.84 | 2.28 | 2.03 | 1.17 | 0.91 | 0.92 | 1.74 | 1.81 | 1.52 | 1.31 | 17.80 |
| Highest Precipitation (in.) | 2.61 | 3.12 | 4.18 | 4.91 | 3.92 | 4.47 | 3.63 | 4.39 | 9.75 | 5.51 | 3.19 | 3.32 | 28.01 |
| Year Highest Occurred | 1980 | 1969 | 1975 | 1986 | 1981 | 1964 | 1982 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.17 | 0.31 | 0.03 | 0.00 | 0.00 | 0.03 | 0.04 | 0.00 | 0.39 | 0.01 | 9.40 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1987 | 1972 | 1966 | 1972 | 1985 | 1979 | 1988 | 1976 | 1989 | 1979 |
| Heating Degree Days (F) | 1107. | 854. | 698. | 439. | 185. | 40. | 0. | 0. | 100. | 353. | 708. | 1045. | 5529. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 36. | 211. | 459. | 372. | 124. | 12. | 0. | 0. | 1221. |