| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.2 | 61.0 | 64.8 | 71.4 | 81.0 | 89.6 | 96.1 | 94.3 | 88.5 | 78.3 | 63.7 | 54.6 | 74.8 |
| Highest Mean Max. Temperature (F) | 60.3 | 68.1 | 71.9 | 80.0 | 85.9 | 95.4 | 101.1 | 101.1 | 93.8 | 85.1 | 71.8 | 61.7 | 77.0 |
| Year Highest Occurred | 1986 | 1988 | 1984 | 1987 | 1976 | 1961 | 1988 | 1967 | 1974 | 1978 | 1986 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.8 | 53.3 | 59.7 | 57.9 | 71.9 | 82.8 | 89.4 | 87.5 | 78.9 | 71.2 | 56.6 | 46.5 | 72.3 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1982 | 1963 | 1963 |
| Mean Temperature (F) | 45.0 | 50.5 | 53.9 | 59.0 | 67.0 | 74.3 | 79.4 | 77.6 | 72.2 | 63.9 | 52.8 | 45.6 | 61.8 |
| Highest Mean Temperature (F) | 50.1 | 56.4 | 58.6 | 65.5 | 72.0 | 78.6 | 83.3 | 84.5 | 77.1 | 68.2 | 57.1 | 50.1 | 63.1 |
| Year Highest Occurred | 1978 | 1963 | 1972 | 1987 | 1973 | 1961 | 1988 | 1967 | 1967 | 1978 | 1967 | 1964 | 1966 |
| Lowest Mean Temperature (F) | 41.2 | 45.8 | 50.9 | 50.3 | 60.5 | 67.8 | 73.5 | 73.3 | 63.5 | 58.7 | 48.6 | 40.6 | 60.0 |
| Year Lowest Occurred | 1963 | 1990 | 1973 | 1967 | 1977 | 1980 | 1987 | 1989 | 1986 | 1984 | 1982 | 1963 | 1985 |
| Mean Min. Temperature (F) | 35.7 | 40.0 | 43.0 | 46.7 | 52.8 | 58.8 | 62.7 | 60.9 | 55.9 | 49.4 | 41.8 | 36.6 | 48.7 |
| Highest Mean Min. Temperature (F) | 43.2 | 47.2 | 48.2 | 51.0 | 58.1 | 62.9 | 66.8 | 67.9 | 61.0 | 52.9 | 46.5 | 43.1 | 50.6 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1987 | 1973 | 1973 | 1967 | 1967 | 1967 | 1983 | 1970 | 1964 | 1973 |
| Lowest Mean Min. Temperature (F) | 29.4 | 33.1 | 37.9 | 42.5 | 48.8 | 52.7 | 56.3 | 54.8 | 48.1 | 42.0 | 37.1 | 29.7 | 45.4 |
| Year Lowest Occurred | 1963 | 1990 | 1985 | 1984 | 1985 | 1980 | 1989 | 1989 | 1986 | 1989 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 6.17 | 4.82 | 4.95 | 2.51 | 0.90 | 0.34 | 0.07 | 0.21 | 0.73 | 2.20 | 5.18 | 4.89 | 32.97 |
| Highest Precipitation (in.) | 19.20 | 13.93 | 13.36 | 9.34 | 6.72 | 1.53 | 1.60 | 1.79 | 3.46 | 11.85 | 16.78 | 12.44 | 62.78 |
| Year Highest Occurred | 1978 | 1980 | 1983 | 1982 | 1990 | 1967 | 1974 | 1976 | 1986 | 1962 | 1981 | 1983 | 1981 |
| Lowest Precipitation (in.) | 0.49 | 0.23 | 0.64 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.94 | 0.00 | 15.46 |
| Year Lowest Occurred | 1984 | 1971 | 1972 | 1987 | 1987 | 1990 | 1990 | 1988 | 1988 | 1988 | 1990 | 1989 | 1971 |
| Heating Degree Days (F) | 620. | 406. | 344. | 219. | 60. | 6. | 0. | 0. | 19. | 103. | 366. | 601. | 2744. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 39. | 122. | 285. | 446. | 391. | 235. | 69. | 0. | 0. | 1587. |