| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 61.0 | 66.8 | 74.9 | 83.7 | 90.8 | 97.3 | 97.7 | 95.8 | 89.3 | 81.5 | 70.5 | 62.7 | 81.0 |
| Highest Mean Max. Temperature (F) | 67.6 | 74.6 | 82.2 | 90.1 | 96.2 | 106.9 | 104.0 | 101.5 | 96.9 | 89.7 | 78.5 | 70.0 | 83.5 |
| Year Highest Occurred | 1982 | 1976 | 1974 | 1989 | 1989 | 1990 | 1980 | 1977 | 1977 | 1979 | 1981 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 52.5 | 60.8 | 64.5 | 78.4 | 85.7 | 93.2 | 91.8 | 88.3 | 80.9 | 74.8 | 61.6 | 55.8 | 78.6 |
| Year Lowest Occurred | 1979 | 1966 | 1969 | 1983 | 1987 | 1986 | 1976 | 1971 | 1974 | 1970 | 1976 | 1963 | 1968 |
| Mean Temperature (F) | 44.8 | 49.7 | 57.0 | 66.0 | 73.9 | 81.3 | 83.4 | 81.6 | 75.3 | 65.5 | 54.5 | 46.5 | 65.0 |
| Highest Mean Temperature (F) | 51.0 | 55.4 | 62.7 | 70.7 | 77.3 | 88.9 | 88.2 | 86.9 | 81.1 | 69.3 | 61.3 | 52.4 | 66.5 |
| Year Highest Occurred | 1969 | 1962 | 1967 | 1967 | 1984 | 1990 | 1980 | 1977 | 1977 | 1979 | 1983 | 1977 | 1977 |
| Lowest Mean Temperature (F) | 40.3 | 43.2 | 49.3 | 60.8 | 70.3 | 77.9 | 79.2 | 77.0 | 68.7 | 60.0 | 46.3 | 41.1 | 63.4 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1973 | 1976 | 1979 | 1976 | 1971 | 1974 | 1976 | 1976 | 1989 | 1976 |
| Mean Min. Temperature (F) | 28.5 | 32.5 | 39.1 | 48.2 | 56.8 | 65.2 | 69.1 | 67.5 | 61.2 | 49.5 | 38.4 | 30.2 | 48.9 |
| Highest Mean Min. Temperature (F) | 34.9 | 38.2 | 45.6 | 54.3 | 61.3 | 70.9 | 72.4 | 72.3 | 65.2 | 54.7 | 45.6 | 35.9 | 50.9 |
| Year Highest Occurred | 1969 | 1962 | 1967 | 1967 | 1984 | 1990 | 1980 | 1977 | 1977 | 1983 | 1983 | 1965 | 1969 |
| Lowest Mean Min. Temperature (F) | 21.9 | 25.3 | 34.0 | 41.2 | 52.0 | 61.7 | 66.3 | 64.6 | 56.5 | 43.7 | 31.0 | 24.3 | 46.3 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1973 | 1975 | 1973 | 1975 | 1990 | 1974 | 1976 | 1976 | 1985 | 1975 |
| Mean Precipitation (in.) | 0.38 | 0.39 | 0.30 | 0.39 | 0.92 | 1.91 | 1.53 | 1.81 | 2.54 | 0.96 | 0.55 | 0.48 | 12.16 |
| Highest Precipitation (in.) | 1.38 | 1.99 | 1.58 | 4.07 | 2.19 | 8.48 | 5.35 | 5.91 | 8.98 | 4.45 | 3.27 | 3.90 | 23.76 |
| Year Highest Occurred | 1974 | 1973 | 1970 | 1981 | 1984 | 1986 | 1990 | 1974 | 1974 | 1969 | 1978 | 1986 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | 0.00 | 0.00 | 0.00 | 6.20 |
| Year Lowest Occurred | 1988 | 1974 | 1988 | 1989 | 1971 | 1990 | 1987 | 1983 | 1977 | 1989 | 1989 | 1985 | 1967 |
| Heating Degree Days (F) | 626. | 428. | 267. | 69. | 0. | 0. | 0. | 0. | 0. | 66. | 324. | 574. | 2354. |
| Cooling Degree Days (F) | 0. | 0. | 19. | 99. | 276. | 489. | 570. | 515. | 312. | 81. | 9. | 0. | 2370. |