| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 51.4 | 55.6 | 61.9 | 71.0 | 79.4 | 88.7 | 92.4 | 90.1 | 82.3 | 73.6 | 61.1 | 51.8 | 71.6 |
| Highest Mean Max. Temperature (F) | 58.7 | 63.0 | 72.5 | 77.9 | 87.2 | 98.8 | 98.4 | 94.2 | 86.7 | 79.5 | 68.2 | 58.3 | 74.4 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1974 | 1990 | 1980 | 1962 | 1983 | 1979 | 1989 | 1970 | 1989 |
| Lowest Mean Max. Temperature (F) | 43.4 | 45.5 | 51.4 | 62.5 | 73.6 | 82.8 | 88.1 | 85.9 | 77.2 | 64.7 | 49.9 | 43.7 | 68.5 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1983 | 1983 | 1983 | 1975 | 1971 | 1974 | 1984 | 1972 | 1983 | 1982 |
| Mean Temperature (F) | 36.6 | 40.7 | 47.7 | 56.9 | 65.6 | 74.7 | 79.1 | 77.0 | 69.4 | 59.3 | 47.1 | 37.9 | 57.7 |
| Highest Mean Temperature (F) | 42.9 | 47.6 | 54.4 | 61.6 | 71.7 | 81.9 | 84.4 | 79.7 | 73.1 | 65.0 | 52.2 | 44.1 | 59.5 |
| Year Highest Occurred | 1969 | 1976 | 1974 | 1978 | 1974 | 1990 | 1980 | 1969 | 1983 | 1963 | 1965 | 1977 | 1977 |
| Lowest Mean Temperature (F) | 30.0 | 32.7 | 39.5 | 49.7 | 60.6 | 70.1 | 75.9 | 73.7 | 65.2 | 53.3 | 39.4 | 30.6 | 55.8 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1983 | 1983 | 1961 | 1971 | 1974 | 1984 | 1972 | 1983 | 1982 |
| Mean Min. Temperature (F) | 21.7 | 25.8 | 33.3 | 42.9 | 51.7 | 60.7 | 65.8 | 63.9 | 56.5 | 45.0 | 33.1 | 24.0 | 43.7 |
| Highest Mean Min. Temperature (F) | 27.8 | 32.2 | 38.1 | 47.3 | 56.2 | 65.0 | 70.4 | 66.7 | 59.7 | 50.7 | 37.9 | 30.0 | 45.4 |
| Year Highest Occurred | 1969 | 1976 | 1967 | 1981 | 1974 | 1990 | 1980 | 1983 | 1963 | 1963 | 1965 | 1977 | 1977 |
| Lowest Mean Min. Temperature (F) | 13.8 | 19.8 | 26.6 | 36.5 | 47.6 | 57.3 | 62.5 | 60.7 | 52.9 | 40.7 | 26.7 | 17.4 | 42.0 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1973 | 1983 | 1983 | 1961 | 1973 | 1961 | 1970 | 1976 | 1983 | 1961 |
| Mean Precipitation (in.) | 0.38 | 0.44 | 0.58 | 0.79 | 1.32 | 1.82 | 2.41 | 2.47 | 1.62 | 1.01 | 0.63 | 0.38 | 13.85 |
| Highest Precipitation (in.) | 1.77 | 1.51 | 2.87 | 2.64 | 4.00 | 5.90 | 4.88 | 5.74 | 5.38 | 4.24 | 3.04 | 1.20 | 22.34 |
| Year Highest Occurred | 1987 | 1986 | 1985 | 1977 | 1987 | 1978 | 1968 | 1990 | 1972 | 1985 | 1986 | 1984 | 1985 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.15 | 0.15 | 0.20 | 0.11 | 0.00 | 0.00 | 0.00 | 7.80 |
| Year Lowest Occurred | 1981 | 1979 | 1966 | 1978 | 1974 | 1968 | 1978 | 1962 | 1966 | 1966 | 1989 | 1985 | 1964 |
| Heating Degree Days (F) | 880. | 680. | 536. | 258. | 67. | 5. | 0. | 0. | 13. | 206. | 537. | 840. | 4022. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 15. | 85. | 296. | 437. | 372. | 145. | 29. | 0. | 0. | 1379. |