| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.6 | 47.5 | 49.3 | 55.4 | 65.2 | 74.9 | 82.7 | 82.0 | 75.1 | 65.3 | 52.0 | 45.5 | 61.7 |
| Highest Mean Max. Temperature (F) | 57.2 | 55.3 | 58.9 | 64.9 | 72.1 | 81.6 | 86.5 | 87.5 | 83.5 | 75.4 | 61.2 | 54.7 | 64.3 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1977 | 1976 | 1981 | 1961 | 1967 | 1974 | 1964 | 1976 | 1962 | 1961 |
| Lowest Mean Max. Temperature (F) | 38.8 | 37.4 | 42.8 | 39.4 | 55.0 | 67.0 | 75.1 | 74.2 | 63.1 | 55.9 | 44.0 | 36.8 | 58.1 |
| Year Lowest Occurred | 1982 | 1969 | 1982 | 1967 | 1977 | 1963 | 1987 | 1976 | 1986 | 1984 | 1984 | 1971 | 1982 |
| Mean Temperature (F) | 36.3 | 37.6 | 39.1 | 43.9 | 51.9 | 60.4 | 66.9 | 66.3 | 60.4 | 52.2 | 41.8 | 36.5 | 49.4 |
| Highest Mean Temperature (F) | 43.2 | 44.4 | 45.3 | 50.3 | 57.0 | 65.9 | 70.4 | 70.5 | 65.9 | 58.4 | 48.4 | 42.6 | 51.4 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1987 | 1984 | 1977 | 1984 | 1967 | 1974 | 1988 | 1976 | 1962 | 1961 |
| Lowest Mean Temperature (F) | 31.4 | 30.0 | 34.6 | 32.3 | 44.2 | 55.2 | 61.8 | 60.2 | 52.2 | 45.9 | 36.8 | 28.4 | 47.3 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1963 | 1987 | 1976 | 1986 | 1984 | 1985 | 1971 | 1971 |
| Mean Min. Temperature (F) | 26.9 | 27.7 | 28.9 | 32.4 | 38.5 | 46.0 | 51.1 | 50.4 | 45.8 | 39.0 | 31.7 | 27.4 | 37.2 |
| Highest Mean Min. Temperature (F) | 33.8 | 33.5 | 35.2 | 38.6 | 42.9 | 51.2 | 56.1 | 54.7 | 50.5 | 45.8 | 35.6 | 32.3 | 39.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1987 | 1977 | 1988 | 1988 | 1988 | 1987 | 1976 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 22.3 | 22.3 | 25.1 | 25.2 | 33.3 | 41.8 | 46.3 | 45.7 | 40.0 | 33.6 | 26.9 | 19.9 | 34.2 |
| Year Lowest Occurred | 1966 | 1966 | 1969 | 1967 | 1977 | 1980 | 1966 | 1968 | 1965 | 1971 | 1964 | 1971 | 1971 |
| Mean Precipitation (in.) | 9.79 | 8.57 | 8.52 | 4.66 | 1.49 | 0.56 | 0.21 | 0.31 | 1.06 | 3.16 | 7.78 | 8.53 | 54.64 |
| Highest Precipitation (in.) | 33.98 | 36.32 | 20.06 | 14.24 | 5.70 | 2.33 | 3.51 | 3.58 | 5.12 | 10.90 | 23.98 | 32.41 | 109.12 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1967 | 1990 | 1964 | 1974 | 1976 | 1978 | 1982 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.47 | 0.63 | 1.16 | 0.49 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 22.06 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1977 | 1985 | 1990 | 1989 | 1988 | 1987 | 1978 | 1980 | 1989 | 1976 |
| Heating Degree Days (F) | 890. | 767. | 803. | 633. | 412. | 176. | 50. | 58. | 182. | 406. | 696. | 884. | 5957. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 38. | 109. | 98. | 44. | 9. | 0. | 0. | 304. |