| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.4 | 53.7 | 58.5 | 65.8 | 75.2 | 83.7 | 91.5 | 90.6 | 84.1 | 72.4 | 56.3 | 48.1 | 69.0 |
| Highest Mean Max. Temperature (F) | 53.5 | 61.6 | 65.9 | 75.4 | 82.2 | 90.0 | 96.4 | 96.8 | 91.7 | 83.2 | 65.3 | 55.6 | 72.0 |
| Year Highest Occurred | 1984 | 1988 | 1986 | 1987 | 1973 | 1961 | 1961 | 1967 | 1974 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 43.5 | 44.1 | 52.9 | 51.1 | 64.8 | 75.7 | 84.7 | 81.2 | 75.6 | 63.0 | 50.0 | 41.4 | 66.5 |
| Year Lowest Occurred | 1973 | 1969 | 1962 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1964 | 1972 | 1982 |
| Mean Temperature (F) | 35.5 | 40.2 | 43.9 | 49.2 | 56.8 | 64.1 | 69.3 | 68.0 | 61.8 | 52.6 | 42.6 | 35.8 | 51.7 |
| Highest Mean Temperature (F) | 42.6 | 45.2 | 50.0 | 55.5 | 61.5 | 69.7 | 74.7 | 71.9 | 65.5 | 59.2 | 47.2 | 41.1 | 54.1 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1973 | 1977 | 1988 | 1977 | 1975 | 1987 | 1981 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 30.7 | 33.8 | 40.0 | 40.6 | 51.1 | 59.4 | 64.6 | 63.3 | 57.6 | 47.5 | 38.4 | 28.2 | 50.0 |
| Year Lowest Occurred | 1968 | 1969 | 1962 | 1967 | 1977 | 1980 | 1963 | 1976 | 1961 | 1969 | 1985 | 1972 | 1971 |
| Mean Min. Temperature (F) | 22.5 | 26.6 | 29.3 | 32.5 | 38.4 | 44.5 | 47.1 | 45.3 | 39.5 | 32.8 | 28.9 | 23.5 | 34.2 |
| Highest Mean Min. Temperature (F) | 31.7 | 34.0 | 35.2 | 38.3 | 43.6 | 50.7 | 53.2 | 50.3 | 43.5 | 39.5 | 34.7 | 32.1 | 37.7 |
| Year Highest Occurred | 1986 | 1986 | 1978 | 1990 | 1987 | 1977 | 1988 | 1977 | 1981 | 1979 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 14.8 | 19.6 | 24.3 | 27.4 | 34.3 | 40.3 | 40.4 | 39.6 | 34.1 | 27.6 | 22.5 | 13.0 | 32.1 |
| Year Lowest Occurred | 1977 | 1964 | 1969 | 1970 | 1964 | 1962 | 1966 | 1969 | 1961 | 1966 | 1990 | 1990 | 1966 |
| Mean Precipitation (in.) | 2.97 | 2.46 | 2.68 | 1.30 | 1.25 | 0.80 | 0.14 | 0.43 | 0.66 | 1.50 | 2.48 | 2.86 | 19.53 |
| Highest Precipitation (in.) | 7.06 | 6.27 | 7.40 | 4.21 | 3.89 | 3.38 | 1.18 | 2.09 | 2.35 | 7.98 | 6.44 | 6.72 | 29.00 |
| Year Highest Occurred | 1974 | 1979 | 1986 | 1978 | 1988 | 1970 | 1987 | 1976 | 1985 | 1962 | 1981 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.13 | 0.07 | 0.47 | 0.05 | 0.05 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.07 | 8.04 |
| Year Lowest Occurred | 1984 | 1988 | 1976 | 1985 | 1976 | 1972 | 1990 | 1986 | 1974 | 1978 | 1976 | 1989 | 1976 |
| Heating Degree Days (F) | 915. | 694. | 654. | 480. | 263. | 94. | 24. | 36. | 131. | 388. | 672. | 905. | 5256. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 9. | 67. | 157. | 129. | 35. | 0. | 0. | 0. | 403. |