| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.4 | 46.3 | 53.1 | 62.3 | 71.4 | 81.6 | 90.6 | 89.1 | 79.4 | 67.9 | 50.9 | 40.2 | 64.4 |
| Highest Mean Max. Temperature (F) | 48.8 | 56.2 | 61.1 | 72.6 | 78.9 | 88.7 | 96.0 | 95.3 | 87.7 | 80.1 | 62.0 | 47.5 | 68.4 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1987 | 1969 | 1974 | 1988 | 1967 | 1987 | 1988 | 1962 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 31.4 | 36.8 | 47.9 | 49.4 | 62.2 | 74.9 | 84.6 | 80.9 | 70.9 | 57.5 | 43.0 | 32.6 | 61.0 |
| Year Lowest Occurred | 1984 | 1989 | 1962 | 1963 | 1977 | 1963 | 1983 | 1976 | 1985 | 1969 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 27.4 | 34.3 | 39.6 | 46.2 | 54.4 | 63.4 | 70.6 | 68.7 | 59.8 | 49.6 | 37.5 | 28.4 | 48.3 |
| Highest Mean Temperature (F) | 35.4 | 43.1 | 46.1 | 55.7 | 59.3 | 68.6 | 76.6 | 73.6 | 66.8 | 59.2 | 44.5 | 34.9 | 51.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1969 | 1988 | 1988 | 1967 | 1990 | 1988 | 1962 | 1973 | 1988 |
| Lowest Mean Temperature (F) | 18.3 | 24.7 | 35.1 | 38.6 | 48.2 | 56.8 | 66.1 | 62.8 | 53.7 | 42.1 | 29.2 | 18.2 | 46.1 |
| Year Lowest Occurred | 1984 | 1989 | 1964 | 1963 | 1977 | 1980 | 1983 | 1968 | 1972 | 1969 | 1985 | 1990 | 1984 |
| Mean Min. Temperature (F) | 15.5 | 22.3 | 26.0 | 30.1 | 37.3 | 45.1 | 50.5 | 48.4 | 40.1 | 31.2 | 24.1 | 16.7 | 32.3 |
| Highest Mean Min. Temperature (F) | 25.4 | 30.1 | 33.7 | 40.0 | 42.4 | 51.0 | 57.1 | 52.9 | 46.4 | 38.2 | 29.8 | 26.5 | 34.9 |
| Year Highest Occurred | 1978 | 1986 | 1989 | 1990 | 1987 | 1988 | 1988 | 1961 | 1990 | 1988 | 1970 | 1973 | 1988 |
| Lowest Mean Min. Temperature (F) | 4.5 | 12.6 | 20.7 | 24.3 | 32.7 | 38.4 | 46.0 | 44.5 | 31.7 | 24.0 | 15.4 | 3.7 | 29.8 |
| Year Lowest Occurred | 1977 | 1989 | 1964 | 1970 | 1965 | 1980 | 1963 | 1968 | 1970 | 1970 | 1985 | 1990 | 1971 |
| Mean Precipitation (in.) | 0.98 | 0.79 | 0.74 | 0.67 | 0.79 | 0.78 | 0.24 | 0.43 | 0.43 | 0.52 | 1.07 | 1.18 | 8.62 |
| Highest Precipitation (in.) | 3.42 | 2.42 | 2.20 | 2.30 | 2.51 | 2.52 | 1.09 | 2.64 | 1.22 | 2.06 | 2.28 | 4.31 | 16.83 |
| Year Highest Occurred | 1969 | 1986 | 1975 | 1983 | 1971 | 1970 | 1974 | 1976 | 1986 | 1962 | 1988 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.13 | 0.01 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 5.02 |
| Year Lowest Occurred | 1985 | 1988 | 1977 | 1962 | 1972 | 1990 | 1989 | 1985 | 1987 | 1988 | 1990 | 1976 | 1990 |
| Heating Degree Days (F) | 1166. | 860. | 787. | 570. | 335. | 133. | 17. | 41. | 200. | 484. | 825. | 1135. | 6553. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 6. | 85. | 190. | 155. | 44. | 6. | 0. | 0. | 492. |