| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.1 | 53.3 | 57.3 | 64.2 | 73.0 | 81.8 | 88.8 | 88.4 | 82.1 | 72.0 | 56.2 | 47.4 | 67.7 |
| Highest Mean Max. Temperature (F) | 54.5 | 63.8 | 64.9 | 74.3 | 79.7 | 89.6 | 94.0 | 95.4 | 87.2 | 82.5 | 65.8 | 57.6 | 70.2 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1987 | 1969 | 1981 | 1984 | 1981 | 1974 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 41.8 | 44.0 | 51.0 | 48.4 | 61.0 | 75.5 | 83.7 | 78.8 | 73.4 | 64.6 | 49.0 | 40.3 | 64.6 |
| Year Lowest Occurred | 1982 | 1969 | 1962 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1975 | 1973 | 1971 | 1982 |
| Mean Temperature (F) | 38.2 | 41.7 | 44.6 | 49.5 | 56.7 | 64.0 | 69.1 | 68.5 | 63.1 | 54.9 | 44.5 | 38.1 | 52.7 |
| Highest Mean Temperature (F) | 43.8 | 48.4 | 49.6 | 55.7 | 61.6 | 68.7 | 73.2 | 73.0 | 66.9 | 61.3 | 49.6 | 42.4 | 54.9 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1981 | 1984 | 1967 | 1975 | 1988 | 1976 | 1989 | 1981 |
| Lowest Mean Temperature (F) | 33.8 | 35.8 | 40.2 | 39.1 | 49.0 | 59.0 | 64.3 | 62.7 | 57.7 | 50.5 | 40.4 | 32.1 | 50.8 |
| Year Lowest Occurred | 1972 | 1990 | 1962 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1981 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 28.2 | 30.1 | 31.8 | 34.6 | 40.3 | 46.0 | 49.3 | 48.5 | 44.0 | 37.8 | 32.8 | 28.6 | 37.7 |
| Highest Mean Min. Temperature (F) | 34.6 | 37.5 | 35.6 | 38.9 | 44.3 | 50.8 | 52.4 | 52.5 | 47.3 | 42.8 | 37.0 | 35.1 | 39.9 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1990 | 1966 | 1970 | 1984 | 1967 | 1983 | 1983 | 1970 | 1981 | 1981 |
| Lowest Mean Min. Temperature (F) | 24.2 | 24.8 | 26.9 | 28.6 | 36.9 | 42.5 | 44.9 | 46.1 | 40.1 | 35.7 | 28.6 | 21.9 | 36.5 |
| Year Lowest Occurred | 1963 | 1990 | 1977 | 1975 | 1977 | 1980 | 1983 | 1980 | 1961 | 1981 | 1961 | 1990 | 1990 |
| Mean Precipitation (in.) | 10.70 | 9.26 | 9.00 | 4.69 | 2.24 | 0.84 | 0.29 | 0.48 | 1.39 | 4.29 | 9.45 | 9.63 | 62.26 |
| Highest Precipitation (in.) | 29.74 | 32.27 | 24.54 | 14.91 | 8.24 | 3.67 | 3.27 | 2.75 | 8.34 | 23.77 | 23.22 | 33.66 | 111.88 |
| Year Highest Occurred | 1969 | 1986 | 1989 | 1963 | 1990 | 1967 | 1974 | 1976 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.94 | 0.61 | 1.48 | 0.55 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.92 | 0.00 | 21.27 |
| Year Lowest Occurred | 1984 | 1964 | 1988 | 1977 | 1974 | 1981 | 1989 | 1988 | 1988 | 1988 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 831. | 652. | 632. | 474. | 270. | 94. | 21. | 27. | 111. | 321. | 615. | 834. | 4882. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 12. | 64. | 148. | 136. | 54. | 8. | 0. | 0. | 431. |