| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.4 | 59.7 | 62.6 | 69.5 | 79.8 | 89.1 | 95.6 | 94.0 | 88.3 | 78.1 | 62.9 | 55.3 | 74.2 |
| Highest Mean Max. Temperature (F) | 62.5 | 67.2 | 69.2 | 79.1 | 86.3 | 94.6 | 101.4 | 100.2 | 95.2 | 85.9 | 70.2 | 63.8 | 76.9 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1987 | 1987 | 1961 | 1988 | 1967 | 1974 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.7 | 50.9 | 57.7 | 54.2 | 69.7 | 81.8 | 90.6 | 84.6 | 81.3 | 71.4 | 56.9 | 47.1 | 71.5 |
| Year Lowest Occurred | 1973 | 1969 | 1983 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1972 | 1982 |
| Mean Temperature (F) | 44.0 | 47.9 | 50.4 | 55.5 | 64.1 | 72.7 | 78.1 | 76.8 | 71.3 | 62.4 | 50.6 | 44.2 | 59.8 |
| Highest Mean Temperature (F) | 48.0 | 53.8 | 55.0 | 62.3 | 69.4 | 77.5 | 83.2 | 81.3 | 75.3 | 68.3 | 55.8 | 48.0 | 61.8 |
| Year Highest Occurred | 1984 | 1963 | 1972 | 1987 | 1987 | 1977 | 1988 | 1967 | 1974 | 1987 | 1976 | 1969 | 1988 |
| Lowest Mean Temperature (F) | 39.9 | 42.8 | 47.1 | 45.3 | 57.0 | 66.5 | 73.1 | 70.9 | 66.0 | 58.1 | 45.7 | 37.6 | 58.0 |
| Year Lowest Occurred | 1973 | 1969 | 1977 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 32.6 | 36.1 | 38.3 | 41.5 | 48.4 | 56.2 | 60.6 | 59.5 | 54.2 | 46.6 | 38.2 | 33.1 | 45.4 |
| Highest Mean Min. Temperature (F) | 39.1 | 43.3 | 44.1 | 45.5 | 53.0 | 61.4 | 65.0 | 62.9 | 57.1 | 51.8 | 43.6 | 38.6 | 47.6 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1973 | 1977 | 1988 | 1961 | 1975 | 1987 | 1981 | 1964 | 1981 |
| Lowest Mean Min. Temperature (F) | 27.2 | 31.2 | 33.6 | 36.4 | 44.2 | 51.1 | 55.5 | 57.1 | 50.5 | 42.7 | 34.1 | 25.7 | 44.2 |
| Year Lowest Occurred | 1963 | 1989 | 1977 | 1967 | 1977 | 1980 | 1983 | 1985 | 1965 | 1971 | 1978 | 1990 | 1985 |
| Mean Precipitation (in.) | 4.14 | 3.07 | 2.68 | 1.11 | 0.48 | 0.36 | 0.07 | 0.30 | 0.35 | 1.15 | 2.96 | 3.31 | 19.98 |
| Highest Precipitation (in.) | 10.52 | 9.45 | 11.08 | 4.22 | 2.01 | 3.03 | 0.84 | 4.20 | 3.14 | 3.41 | 8.17 | 10.30 | 49.46 |
| Year Highest Occurred | 1978 | 1980 | 1983 | 1965 | 1981 | 1967 | 1974 | 1976 | 1989 | 1982 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.10 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 8.76 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1970 | 1985 | 1990 | 1990 | 1989 | 1988 | 1978 | 1986 | 1989 | 1990 |
| Heating Degree Days (F) | 651. | 479. | 453. | 309. | 105. | 9. | 0. | 0. | 13. | 134. | 432. | 645. | 3230. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 24. | 77. | 240. | 406. | 366. | 202. | 53. | 0. | 0. | 1368. |