| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 58.1 | 63.8 | 69.1 | 78.3 | 87.8 | 97.9 | 99.8 | 97.1 | 92.2 | 82.0 | 68.8 | 58.4 | 79.4 |
| Highest Mean Max. Temperature (F) | 65.7 | 68.6 | 81.1 | 88.4 | 93.5 | 103.2 | 103.0 | 101.7 | 96.9 | 87.2 | 73.3 | 64.2 | 83.0 |
| Year Highest Occurred | 1986 | 1989 | 1972 | 1989 | 1984 | 1974 | 1980 | 1962 | 1989 | 1963 | 1962 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 52.7 | 56.1 | 59.5 | 69.9 | 83.3 | 92.8 | 95.8 | 93.0 | 83.8 | 72.7 | 61.5 | 52.5 | 77.2 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1975 | 1980 | 1965 | 1986 | 1968 | 1975 | 1971 | 1972 | 1971 | 1975 |
| Mean Temperature (F) | 45.6 | 50.3 | 55.1 | 63.1 | 72.3 | 82.1 | 86.6 | 84.1 | 78.4 | 67.5 | 54.9 | 46.2 | 65.5 |
| Highest Mean Temperature (F) | 51.0 | 54.8 | 63.2 | 71.6 | 78.1 | 87.1 | 89.7 | 87.3 | 82.5 | 73.1 | 58.4 | 50.8 | 68.4 |
| Year Highest Occurred | 1986 | 1968 | 1972 | 1989 | 1984 | 1990 | 1980 | 1969 | 1983 | 1988 | 1962 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 42.0 | 44.4 | 49.1 | 54.9 | 67.5 | 76.6 | 82.9 | 79.1 | 70.6 | 61.3 | 49.6 | 42.8 | 61.5 |
| Year Lowest Occurred | 1964 | 1964 | 1973 | 1975 | 1975 | 1965 | 1975 | 1976 | 1975 | 1971 | 1974 | 1968 | 1975 |
| Mean Min. Temperature (F) | 32.9 | 36.7 | 41.0 | 47.8 | 56.7 | 66.2 | 73.4 | 71.0 | 64.6 | 53.0 | 40.9 | 33.9 | 51.5 |
| Highest Mean Min. Temperature (F) | 38.5 | 42.5 | 47.9 | 56.7 | 62.6 | 72.8 | 76.3 | 74.8 | 70.7 | 59.5 | 44.4 | 37.3 | 54.4 |
| Year Highest Occurred | 1969 | 1968 | 1990 | 1990 | 1984 | 1981 | 1980 | 1981 | 1983 | 1988 | 1967 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 27.1 | 28.3 | 35.9 | 39.9 | 50.0 | 58.1 | 67.8 | 59.1 | 55.1 | 43.9 | 31.6 | 26.9 | 45.7 |
| Year Lowest Occurred | 1964 | 1964 | 1976 | 1975 | 1975 | 1976 | 1975 | 1976 | 1976 | 1975 | 1974 | 1976 | 1975 |
| Mean Precipitation (in.) | 1.53 | 1.36 | 1.58 | 0.46 | 0.26 | 0.20 | 1.70 | 2.30 | 1.43 | 1.30 | 1.29 | 2.08 | 15.49 |
| Highest Precipitation (in.) | 4.58 | 4.69 | 4.68 | 2.60 | 1.41 | 1.50 | 4.68 | 5.51 | 3.46 | 5.96 | 5.40 | 8.53 | 29.31 |
| Year Highest Occurred | 1979 | 1980 | 1983 | 1988 | 1973 | 1979 | 1967 | 1966 | 1983 | 1972 | 1978 | 1965 | 1978 |
| Lowest Precipitation (in.) | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 10.81 |
| Year Lowest Occurred | 1972 | 1984 | 1988 | 1989 | 1990 | 1989 | 1968 | 1973 | 1968 | 1982 | 1989 | 1981 | 1974 |
| Heating Degree Days (F) | 601. | 412. | 322. | 140. | 10. | 0. | 0. | 0. | 0. | 64. | 307. | 583. | 2439. |
| Cooling Degree Days (F) | 0. | 0. | 15. | 83. | 236. | 513. | 670. | 592. | 402. | 142. | 0. | 0. | 2653. |