| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.8 | 53.2 | 57.6 | 62.4 | 69.1 | 75.9 | 82.8 | 83.1 | 77.9 | 66.8 | 53.9 | 47.4 | 64.8 |
| Highest Mean Max. Temperature (F) | 52.7 | 59.2 | 63.4 | 69.8 | 74.0 | 81.3 | 88.5 | 92.1 | 85.1 | 75.8 | 57.1 | 51.8 | 67.3 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1987 | 1966 | 1961 | 1967 | 1967 | 1974 | 1987 | 1967 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 41.1 | 46.7 | 52.6 | 56.1 | 63.1 | 69.0 | 74.5 | 76.9 | 71.4 | 61.1 | 46.0 | 41.8 | 62.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1983 | 1975 | 1978 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 40.7 | 44.3 | 47.2 | 50.6 | 56.0 | 62.0 | 66.4 | 66.7 | 62.0 | 54.6 | 46.5 | 41.1 | 53.2 |
| Highest Mean Temperature (F) | 44.4 | 49.8 | 52.4 | 55.9 | 59.5 | 64.8 | 69.6 | 70.7 | 65.4 | 58.8 | 49.5 | 45.2 | 54.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1987 | 1986 | 1990 | 1977 | 1974 | 1988 | 1976 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 34.0 | 36.7 | 43.8 | 45.8 | 52.3 | 58.4 | 63.2 | 63.4 | 57.2 | 51.4 | 39.3 | 34.9 | 51.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1976 | 1963 | 1975 | 1961 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 33.5 | 35.4 | 36.8 | 38.7 | 42.8 | 48.0 | 49.9 | 50.2 | 46.1 | 42.4 | 39.0 | 34.7 | 41.5 |
| Highest Mean Min. Temperature (F) | 38.9 | 40.5 | 42.5 | 44.6 | 47.1 | 52.3 | 53.6 | 54.8 | 50.3 | 47.7 | 42.3 | 39.7 | 43.8 |
| Year Highest Occurred | 1978 | 1983 | 1983 | 1980 | 1980 | 1969 | 1979 | 1977 | 1979 | 1988 | 1983 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 24.0 | 26.7 | 30.5 | 33.9 | 38.4 | 43.3 | 44.1 | 44.9 | 40.0 | 36.1 | 32.1 | 26.8 | 39.2 |
| Year Lowest Occurred | 1963 | 1989 | 1969 | 1968 | 1965 | 1962 | 1962 | 1970 | 1970 | 1974 | 1961 | 1985 | 1962 |
| Mean Precipitation (in.) | 7.04 | 5.50 | 5.27 | 3.34 | 2.17 | 1.14 | 0.45 | 0.87 | 1.46 | 3.47 | 7.66 | 7.77 | 46.14 |
| Highest Precipitation (in.) | 13.34 | 12.41 | 10.48 | 7.17 | 4.50 | 2.69 | 2.90 | 3.70 | 4.55 | 6.50 | 19.67 | 17.82 | 63.82 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1982 | 1963 | 1984 | 1987 | 1968 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.21 | 1.48 | 0.71 | 0.97 | 0.57 | 0.13 | 0.00 | 0.00 | 0.00 | 0.06 | 1.24 | 1.23 | 32.11 |
| Year Lowest Occurred | 1963 | 1988 | 1965 | 1966 | 1982 | 1966 | 1977 | 1980 | 1965 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 753. | 580. | 552. | 432. | 279. | 109. | 37. | 37. | 120. | 322. | 555. | 741. | 4517. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 19. | 80. | 90. | 30. | 0. | 0. | 0. | 219. |