| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 58.0 | 64.1 | 67.1 | 72.2 | 78.4 | 85.4 | 90.2 | 89.8 | 87.6 | 80.1 | 66.3 | 57.9 | 74.8 |
| Highest Mean Max. Temperature (F) | 65.7 | 69.8 | 72.8 | 79.3 | 84.2 | 93.7 | 95.0 | 96.0 | 95.8 | 85.9 | 71.9 | 66.2 | 77.3 |
| Year Highest Occurred | 1976 | 1977 | 1984 | 1977 | 1973 | 1981 | 1984 | 1969 | 1984 | 1978 | 1980 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 53.0 | 56.5 | 63.4 | 61.1 | 71.3 | 78.1 | 83.4 | 85.1 | 77.6 | 74.2 | 61.4 | 51.5 | 72.1 |
| Year Lowest Occurred | 1969 | 1969 | 1989 | 1967 | 1961 | 1965 | 1987 | 1986 | 1986 | 1962 | 1964 | 1963 | 1963 |
| Mean Temperature (F) | 47.1 | 51.6 | 53.7 | 56.8 | 61.7 | 67.4 | 70.3 | 70.2 | 68.3 | 62.7 | 53.5 | 47.2 | 59.2 |
| Highest Mean Temperature (F) | 52.5 | 56.7 | 58.5 | 61.0 | 66.5 | 75.1 | 73.8 | 72.5 | 73.3 | 66.1 | 58.0 | 52.7 | 61.0 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1978 | 1981 | 1984 | 1977 | 1984 | 1978 | 1981 | 1977 | 1978 |
| Lowest Mean Temperature (F) | 42.7 | 47.0 | 50.8 | 48.8 | 57.6 | 63.1 | 66.7 | 67.4 | 63.3 | 59.1 | 49.5 | 42.9 | 57.4 |
| Year Lowest Occurred | 1972 | 1989 | 1962 | 1967 | 1961 | 1965 | 1966 | 1985 | 1986 | 1971 | 1985 | 1965 | 1971 |
| Mean Min. Temperature (F) | 36.2 | 39.1 | 40.2 | 41.4 | 45.0 | 49.4 | 50.4 | 50.5 | 49.0 | 45.3 | 40.6 | 36.5 | 43.6 |
| Highest Mean Min. Temperature (F) | 44.6 | 47.4 | 46.8 | 47.5 | 49.0 | 56.5 | 54.4 | 55.7 | 54.1 | 50.6 | 48.1 | 43.5 | 46.1 |
| Year Highest Occurred | 1978 | 1980 | 1978 | 1990 | 1978 | 1981 | 1988 | 1990 | 1983 | 1979 | 1981 | 1983 | 1986 |
| Lowest Mean Min. Temperature (F) | 31.0 | 33.9 | 36.1 | 35.3 | 41.1 | 46.0 | 47.2 | 46.1 | 44.3 | 39.9 | 34.8 | 29.0 | 41.3 |
| Year Lowest Occurred | 1963 | 1964 | 1976 | 1970 | 1964 | 1971 | 1966 | 1970 | 1970 | 1971 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 6.44 | 4.66 | 4.11 | 1.63 | 0.38 | 0.17 | 0.05 | 0.11 | 0.34 | 1.76 | 4.72 | 4.63 | 29.00 |
| Highest Precipitation (in.) | 16.31 | 14.80 | 13.77 | 5.69 | 3.68 | 2.28 | 1.11 | 0.98 | 1.77 | 9.12 | 12.95 | 11.28 | 63.45 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1967 | 1990 | 1967 | 1974 | 1976 | 1989 | 1962 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.36 | 0.20 | 0.12 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.01 | 11.34 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1973 | 1982 | 1990 | 1990 | 1989 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 555. | 375. | 350. | 260. | 136. | 46. | 8. | 0. | 35. | 101. | 345. | 552. | 2763. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 14. | 34. | 118. | 172. | 164. | 134. | 29. | 0. | 0. | 665. |