| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 52.5 | 53.2 | 53.7 | 58.9 | 66.2 | 75.5 | 81.1 | 80.5 | 75.8 | 68.4 | 58.5 | 53.2 | 64.8 |
| Highest Mean Max. Temperature (F) | 60.5 | 60.9 | 65.3 | 70.4 | 76.9 | 83.2 | 85.2 | 84.8 | 82.6 | 74.6 | 65.6 | 60.6 | 67.3 |
| Year Highest Occurred | 1986 | 1985 | 1972 | 1989 | 1984 | 1981 | 1961 | 1981 | 1979 | 1988 | 1977 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 44.3 | 42.7 | 43.9 | 42.3 | 54.2 | 66.5 | 77.0 | 74.5 | 67.4 | 58.6 | 51.3 | 43.8 | 62.0 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1963 | 1986 | 1976 | 1985 | 1972 | 1964 | 1971 | 1965 |
| Mean Temperature (F) | 44.6 | 45.1 | 45.1 | 49.4 | 56.7 | 65.8 | 71.9 | 71.1 | 66.4 | 59.5 | 50.3 | 45.2 | 55.9 |
| Highest Mean Temperature (F) | 52.6 | 50.7 | 55.9 | 60.4 | 66.8 | 73.7 | 75.4 | 74.8 | 73.5 | 68.9 | 59.8 | 52.9 | 58.4 |
| Year Highest Occurred | 1986 | 1977 | 1972 | 1989 | 1984 | 1978 | 1961 | 1967 | 1979 | 1978 | 1977 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 37.1 | 36.5 | 36.9 | 35.1 | 46.0 | 57.0 | 67.8 | 65.1 | 59.0 | 49.7 | 44.0 | 36.0 | 53.2 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1963 | 1987 | 1976 | 1965 | 1972 | 1964 | 1971 | 1964 |
| Mean Min. Temperature (F) | 36.6 | 36.9 | 36.4 | 39.9 | 47.1 | 56.0 | 62.6 | 61.6 | 56.9 | 50.6 | 42.0 | 37.2 | 47.0 |
| Highest Mean Min. Temperature (F) | 44.7 | 42.4 | 46.5 | 50.4 | 57.1 | 68.8 | 66.3 | 65.5 | 64.4 | 64.6 | 54.0 | 47.2 | 50.3 |
| Year Highest Occurred | 1986 | 1988 | 1972 | 1989 | 1978 | 1978 | 1988 | 1967 | 1979 | 1978 | 1977 | 1977 | 1978 |
| Lowest Mean Min. Temperature (F) | 29.9 | 30.1 | 29.8 | 27.8 | 37.8 | 47.2 | 57.8 | 55.6 | 50.2 | 40.8 | 36.7 | 28.1 | 43.9 |
| Year Lowest Occurred | 1979 | 1966 | 1962 | 1967 | 1977 | 1965 | 1966 | 1976 | 1965 | 1972 | 1964 | 1971 | 1964 |
| Mean Precipitation (in.) | 7.02 | 7.55 | 6.68 | 2.79 | 0.62 | 0.10 | 0.04 | 0.30 | 1.18 | 1.10 | 5.05 | 5.07 | 37.50 |
| Highest Precipitation (in.) | 37.82 | 30.71 | 25.15 | 16.55 | 7.51 | 0.60 | 0.64 | 3.44 | 11.17 | 9.19 | 29.92 | 16.88 | 91.13 |
| Year Highest Occurred | 1969 | 1980 | 1983 | 1965 | 1977 | 1963 | 1965 | 1983 | 1976 | 1987 | 1965 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 11.33 |
| Year Lowest Occurred | 1976 | 1961 | 1972 | 1979 | 1986 | 1989 | 1990 | 1989 | 1981 | 1990 | 1980 | 1962 | 1972 |
| Heating Degree Days (F) | 632. | 557. | 624. | 496. | 305. | 119. | 9. | 11. | 96. | 233. | 446. | 620. | 4148. |
| Cooling Degree Days (F) | 0. | 0. | 7. | 28. | 48. | 143. | 223. | 200. | 138. | 62. | 5. | 6. | 860. |