| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.5 | 61.8 | 65.4 | 72.4 | 81.8 | 90.9 | 97.0 | 96.1 | 90.3 | 80.5 | 65.9 | 57.0 | 76.3 |
| Highest Mean Max. Temperature (F) | 63.3 | 67.4 | 71.8 | 81.1 | 88.3 | 98.0 | 101.8 | 102.1 | 95.9 | 88.2 | 72.5 | 66.0 | 78.7 |
| Year Highest Occurred | 1976 | 1988 | 1984 | 1987 | 1976 | 1981 | 1988 | 1966 | 1984 | 1978 | 1986 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 51.4 | 53.7 | 60.6 | 57.7 | 73.4 | 84.6 | 91.3 | 88.4 | 83.7 | 73.7 | 59.7 | 50.4 | 73.8 |
| Year Lowest Occurred | 1969 | 1969 | 1962 | 1967 | 1977 | 1964 | 1987 | 1976 | 1986 | 1972 | 1985 | 1972 | 1963 |
| Mean Temperature (F) | 45.1 | 49.4 | 52.2 | 57.1 | 64.7 | 72.7 | 77.3 | 76.1 | 71.3 | 63.3 | 52.4 | 45.7 | 60.6 |
| Highest Mean Temperature (F) | 49.5 | 54.5 | 56.8 | 62.9 | 69.6 | 78.3 | 81.6 | 80.2 | 76.6 | 67.6 | 56.4 | 49.5 | 62.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1973 | 1981 | 1988 | 1966 | 1984 | 1987 | 1976 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 40.7 | 44.9 | 48.2 | 46.6 | 58.9 | 68.4 | 72.2 | 71.4 | 65.7 | 58.9 | 49.0 | 40.8 | 58.7 |
| Year Lowest Occurred | 1963 | 1969 | 1962 | 1967 | 1977 | 1980 | 1963 | 1976 | 1965 | 1971 | 1982 | 1965 | 1965 |
| Mean Min. Temperature (F) | 33.8 | 37.0 | 39.0 | 41.6 | 47.6 | 54.5 | 57.5 | 56.2 | 52.3 | 45.9 | 38.8 | 34.3 | 44.9 |
| Highest Mean Min. Temperature (F) | 41.1 | 43.5 | 44.6 | 46.6 | 51.8 | 58.6 | 64.4 | 59.7 | 57.3 | 50.1 | 44.6 | 42.5 | 47.5 |
| Year Highest Occurred | 1970 | 1980 | 1978 | 1990 | 1969 | 1981 | 1966 | 1978 | 1984 | 1987 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 24.4 | 29.1 | 34.7 | 34.8 | 43.5 | 50.9 | 52.9 | 52.4 | 46.7 | 40.6 | 32.7 | 26.3 | 43.0 |
| Year Lowest Occurred | 1963 | 1964 | 1977 | 1970 | 1964 | 1980 | 1963 | 1970 | 1965 | 1971 | 1961 | 1976 | 1964 |
| Mean Precipitation (in.) | 4.13 | 3.37 | 2.71 | 1.09 | 0.33 | 0.15 | 0.04 | 0.07 | 0.31 | 1.16 | 3.04 | 3.30 | 19.70 |
| Highest Precipitation (in.) | 9.85 | 16.73 | 8.76 | 4.30 | 2.98 | 2.07 | 0.63 | 0.91 | 2.34 | 6.76 | 7.90 | 7.53 | 41.80 |
| Year Highest Occurred | 1967 | 1986 | 1989 | 1967 | 1990 | 1967 | 1974 | 1965 | 1989 | 1962 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.31 | 0.03 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 4.34 |
| Year Lowest Occurred | 1975 | 1964 | 1972 | 1985 | 1985 | 1990 | 1990 | 1990 | 1988 | 1978 | 1975 | 1989 | 1976 |
| Heating Degree Days (F) | 617. | 437. | 397. | 265. | 98. | 7. | 0. | 0. | 14. | 101. | 378. | 598. | 2912. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 28. | 88. | 238. | 381. | 344. | 203. | 49. | 0. | 0. | 1331. |