| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.8 | 50.2 | 51.8 | 57.8 | 66.0 | 76.6 | 84.4 | 83.7 | 77.5 | 67.7 | 55.1 | 47.8 | 63.9 |
| Highest Mean Max. Temperature (F) | 55.6 | 57.9 | 63.3 | 70.4 | 73.4 | 82.7 | 88.1 | 89.1 | 84.4 | 75.8 | 62.3 | 55.5 | 66.7 |
| Year Highest Occurred | 1976 | 1963 | 1972 | 1989 | 1984 | 1961 | 1989 | 1967 | 1974 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 41.7 | 42.9 | 44.5 | 41.9 | 56.0 | 69.0 | 79.5 | 77.3 | 66.1 | 60.4 | 47.9 | 38.6 | 62.1 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1963 | 1987 | 1976 | 1986 | 1972 | 1964 | 1971 | 1983 |
| Mean Temperature (F) | 41.5 | 43.6 | 44.0 | 49.0 | 56.2 | 65.9 | 73.5 | 73.0 | 67.7 | 59.1 | 48.1 | 41.5 | 55.3 |
| Highest Mean Temperature (F) | 48.2 | 50.7 | 53.4 | 60.2 | 63.3 | 72.4 | 77.0 | 77.8 | 74.1 | 66.8 | 55.1 | 48.0 | 58.1 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1981 | 1961 | 1967 | 1974 | 1988 | 1989 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 36.1 | 37.2 | 37.6 | 34.8 | 47.6 | 59.4 | 68.2 | 66.1 | 56.6 | 51.8 | 41.9 | 33.1 | 53.3 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1986 | 1972 | 1964 | 1971 | 1971 |
| Mean Min. Temperature (F) | 35.3 | 36.9 | 36.3 | 40.1 | 46.4 | 55.1 | 62.6 | 62.3 | 57.8 | 50.5 | 41.1 | 35.1 | 46.6 |
| Highest Mean Min. Temperature (F) | 42.7 | 43.5 | 43.6 | 49.9 | 53.2 | 62.4 | 66.1 | 66.7 | 64.8 | 58.4 | 47.9 | 40.5 | 49.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1984 | 1981 | 1961 | 1981 | 1983 | 1987 | 1989 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 29.6 | 30.9 | 30.7 | 27.7 | 39.2 | 48.9 | 56.8 | 54.9 | 47.1 | 43.2 | 35.9 | 27.5 | 44.0 |
| Year Lowest Occurred | 1973 | 1966 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1986 | 1972 | 1964 | 1971 | 1971 |
| Mean Precipitation (in.) | 2.03 | 2.62 | 1.91 | 0.83 | 0.26 | 0.04 | 0.03 | 0.11 | 0.37 | 0.31 | 1.97 | 1.98 | 12.46 |
| Highest Precipitation (in.) | 7.43 | 11.36 | 8.99 | 4.11 | 3.39 | 0.54 | 0.49 | 1.85 | 3.29 | 2.48 | 9.80 | 10.26 | 28.28 |
| Year Highest Occurred | 1969 | 1973 | 1978 | 1967 | 1977 | 1963 | 1965 | 1977 | 1976 | 1987 | 1965 | 1971 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.13 |
| Year Lowest Occurred | 1976 | 1984 | 1972 | 1977 | 1986 | 1990 | 1990 | 1989 | 1983 | 1990 | 1990 | 1989 | 1990 |
| Heating Degree Days (F) | 729. | 599. | 651. | 504. | 295. | 98. | 6. | 14. | 91. | 241. | 507. | 729. | 4464. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 24. | 22. | 125. | 269. | 262. | 172. | 58. | 0. | 0. | 932. |