| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.9 | 61.5 | 66.6 | 73.6 | 82.5 | 90.2 | 96.0 | 94.3 | 88.8 | 79.1 | 64.1 | 54.2 | 75.4 |
| Highest Mean Max. Temperature (F) | 58.5 | 68.2 | 73.0 | 81.9 | 88.1 | 95.8 | 100.8 | 101.2 | 94.6 | 84.4 | 70.6 | 61.5 | 77.6 |
| Year Highest Occurred | 1976 | 1988 | 1972 | 1987 | 1973 | 1961 | 1988 | 1967 | 1984 | 1978 | 1986 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.6 | 56.1 | 62.1 | 61.3 | 74.1 | 83.8 | 90.4 | 87.1 | 81.0 | 73.3 | 58.1 | 46.5 | 72.6 |
| Year Lowest Occurred | 1961 | 1969 | 1982 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1981 | 1982 | 1963 | 1982 |
| Mean Temperature (F) | 45.6 | 51.5 | 55.3 | 60.6 | 68.1 | 74.6 | 78.8 | 77.4 | 72.8 | 64.9 | 53.7 | 46.0 | 62.4 |
| Highest Mean Temperature (F) | 51.2 | 57.1 | 60.2 | 66.6 | 72.5 | 79.5 | 84.2 | 83.1 | 78.6 | 69.8 | 57.6 | 50.3 | 64.4 |
| Year Highest Occurred | 1978 | 1963 | 1972 | 1987 | 1973 | 1981 | 1988 | 1967 | 1984 | 1987 | 1967 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 41.8 | 46.9 | 52.2 | 51.5 | 62.2 | 69.3 | 74.7 | 71.6 | 67.8 | 60.8 | 49.6 | 40.6 | 60.5 |
| Year Lowest Occurred | 1963 | 1990 | 1967 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1981 | 1982 | 1963 | 1982 |
| Mean Min. Temperature (F) | 37.2 | 41.4 | 44.0 | 47.6 | 53.6 | 58.9 | 61.6 | 60.4 | 56.8 | 50.8 | 43.2 | 37.7 | 49.4 |
| Highest Mean Min. Temperature (F) | 44.9 | 48.5 | 49.9 | 51.8 | 58.4 | 64.0 | 67.5 | 65.0 | 62.5 | 55.7 | 48.4 | 43.5 | 51.4 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1987 | 1981 | 1988 | 1967 | 1984 | 1987 | 1981 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 31.3 | 35.8 | 39.9 | 41.6 | 50.1 | 54.0 | 56.6 | 56.1 | 52.2 | 46.6 | 40.1 | 32.3 | 47.5 |
| Year Lowest Occurred | 1963 | 1966 | 1967 | 1967 | 1964 | 1965 | 1966 | 1976 | 1965 | 1966 | 1964 | 1990 | 1966 |
| Mean Precipitation (in.) | 4.09 | 3.15 | 3.04 | 1.46 | 0.39 | 0.21 | 0.07 | 0.10 | 0.39 | 1.42 | 3.29 | 3.43 | 21.04 |
| Highest Precipitation (in.) | 9.42 | 9.48 | 8.02 | 4.71 | 2.58 | 1.15 | 1.68 | 1.00 | 1.85 | 9.31 | 7.38 | 14.04 | 46.26 |
| Year Highest Occurred | 1978 | 1975 | 1983 | 1963 | 1990 | 1967 | 1974 | 1965 | 1989 | 1962 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.46 | 0.14 | 0.17 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 7.41 |
| Year Lowest Occurred | 1984 | 1971 | 1988 | 1977 | 1985 | 1987 | 1990 | 1990 | 1990 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 601. | 378. | 305. | 184. | 39. | 5. | 0. | 0. | 8. | 76. | 339. | 589. | 2524. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 52. | 135. | 293. | 428. | 384. | 242. | 73. | 0. | 0. | 1607. |