| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.5 | 60.3 | 64.5 | 71.5 | 80.8 | 88.7 | 94.2 | 93.1 | 88.1 | 78.5 | 62.9 | 54.0 | 74.2 |
| Highest Mean Max. Temperature (F) | 57.8 | 69.0 | 71.0 | 80.1 | 86.1 | 94.3 | 99.3 | 99.5 | 93.5 | 87.9 | 71.1 | 62.2 | 77.0 |
| Year Highest Occurred | 1974 | 1988 | 1988 | 1987 | 1973 | 1961 | 1961 | 1967 | 1984 | 1978 | 1986 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.0 | 52.1 | 59.5 | 56.2 | 70.8 | 81.6 | 89.1 | 85.4 | 82.0 | 72.5 | 56.9 | 46.1 | 71.8 |
| Year Lowest Occurred | 1961 | 1969 | 1975 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1972 | 1963 | 1975 |
| Mean Temperature (F) | 44.0 | 49.3 | 52.7 | 57.9 | 65.9 | 72.9 | 77.4 | 76.1 | 71.3 | 63.0 | 51.8 | 44.6 | 60.6 |
| Highest Mean Temperature (F) | 49.1 | 55.6 | 57.1 | 63.8 | 70.6 | 77.0 | 81.4 | 81.7 | 75.2 | 68.5 | 55.8 | 48.6 | 62.3 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1990 | 1973 | 1981 | 1988 | 1967 | 1967 | 1978 | 1967 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 40.5 | 45.3 | 49.4 | 48.7 | 59.1 | 67.2 | 73.2 | 70.9 | 66.2 | 58.5 | 48.4 | 39.4 | 58.7 |
| Year Lowest Occurred | 1972 | 1990 | 1985 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1985 | 1972 | 1975 |
| Mean Min. Temperature (F) | 34.5 | 38.2 | 40.9 | 44.2 | 51.0 | 57.1 | 60.6 | 59.1 | 54.5 | 47.5 | 40.6 | 35.2 | 47.0 |
| Highest Mean Min. Temperature (F) | 42.0 | 45.9 | 45.7 | 49.8 | 55.0 | 61.3 | 64.0 | 63.9 | 59.0 | 51.3 | 44.7 | 41.8 | 48.5 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1973 | 1981 | 1988 | 1967 | 1967 | 1963 | 1981 | 1964 | 1983 |
| Lowest Mean Min. Temperature (F) | 28.4 | 31.2 | 36.8 | 38.9 | 47.4 | 52.8 | 57.2 | 53.8 | 50.4 | 44.2 | 35.8 | 26.7 | 44.2 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1975 | 1977 | 1980 | 1987 | 1985 | 1986 | 1971 | 1990 | 1985 | 1985 |
| Mean Precipitation (in.) | 5.22 | 3.74 | 4.16 | 1.67 | 0.54 | 0.35 | 0.05 | 0.18 | 0.59 | 1.71 | 4.24 | 3.87 | 26.32 |
| Highest Precipitation (in.) | 11.78 | 9.88 | 16.74 | 5.77 | 2.88 | 1.45 | 1.02 | 1.48 | 3.63 | 9.86 | 12.40 | 10.34 | 50.33 |
| Year Highest Occurred | 1970 | 1986 | 1974 | 1963 | 1990 | 1970 | 1974 | 1976 | 1989 | 1962 | 1973 | 1969 | 1983 |
| Lowest Precipitation (in.) | 0.81 | 0.08 | 0.29 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.09 | 10.40 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1977 | 1987 | 1987 | 1990 | 1990 | 1988 | 1988 | 1980 | 1989 | 1976 |
| Heating Degree Days (F) | 651. | 440. | 381. | 245. | 70. | 5. | 0. | 0. | 13. | 120. | 396. | 632. | 2953. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 32. | 98. | 242. | 384. | 344. | 202. | 58. | 0. | 0. | 1360. |