| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 52.9 | 55.7 | 58.2 | 65.5 | 74.0 | 81.9 | 88.1 | 86.7 | 81.2 | 72.0 | 58.9 | 52.1 | 68.9 |
| Highest Mean Max. Temperature (F) | 59.7 | 63.3 | 66.6 | 74.3 | 81.2 | 89.8 | 92.0 | 93.0 | 87.7 | 77.7 | 68.5 | 59.8 | 70.8 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1987 | 1984 | 1981 | 1984 | 1967 | 1984 | 1965 | 1976 | 1989 | 1976 |
| Lowest Mean Max. Temperature (F) | 45.5 | 43.9 | 54.3 | 51.5 | 65.8 | 75.4 | 83.3 | 79.7 | 73.2 | 66.3 | 52.7 | 43.8 | 67.1 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1977 | 1967 | 1987 | 1968 | 1985 | 1972 | 1984 | 1968 | 1982 |
| Mean Temperature (F) | 45.5 | 47.4 | 48.8 | 53.8 | 60.0 | 66.3 | 71.2 | 70.2 | 66.9 | 60.6 | 50.6 | 44.9 | 57.2 |
| Highest Mean Temperature (F) | 49.7 | 53.3 | 54.9 | 59.9 | 65.0 | 74.1 | 74.5 | 77.0 | 71.9 | 65.6 | 58.1 | 49.8 | 59.2 |
| Year Highest Occurred | 1984 | 1963 | 1988 | 1966 | 1973 | 1981 | 1988 | 1967 | 1974 | 1978 | 1976 | 1989 | 1981 |
| Lowest Mean Temperature (F) | 39.3 | 37.9 | 44.9 | 42.9 | 53.6 | 60.5 | 67.1 | 64.8 | 60.7 | 55.4 | 45.4 | 37.8 | 55.3 |
| Year Lowest Occurred | 1969 | 1969 | 1985 | 1967 | 1977 | 1980 | 1987 | 1968 | 1985 | 1984 | 1985 | 1968 | 1971 |
| Mean Min. Temperature (F) | 38.0 | 39.0 | 39.2 | 41.9 | 45.9 | 50.6 | 54.3 | 53.7 | 52.5 | 49.1 | 42.2 | 37.7 | 45.3 |
| Highest Mean Min. Temperature (F) | 42.7 | 45.8 | 44.7 | 47.9 | 50.0 | 58.3 | 59.3 | 60.9 | 56.7 | 54.1 | 48.1 | 42.6 | 47.9 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1966 | 1979 | 1981 | 1988 | 1967 | 1974 | 1987 | 1969 | 1962 | 1981 |
| Lowest Mean Min. Temperature (F) | 33.1 | 31.8 | 34.0 | 34.3 | 41.4 | 43.8 | 50.5 | 49.6 | 48.2 | 43.2 | 35.4 | 29.9 | 42.3 |
| Year Lowest Occurred | 1969 | 1969 | 1985 | 1967 | 1977 | 1980 | 1966 | 1985 | 1985 | 1971 | 1985 | 1971 | 1971 |
| Mean Precipitation (in.) | 8.98 | 6.45 | 5.58 | 2.46 | 0.59 | 0.24 | 0.05 | 0.15 | 0.62 | 2.53 | 6.25 | 7.12 | 41.02 |
| Highest Precipitation (in.) | 24.00 | 28.49 | 19.12 | 8.62 | 4.37 | 3.06 | 1.12 | 1.42 | 3.08 | 14.47 | 17.33 | 17.82 | 88.89 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1976 | 1982 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.48 | 0.22 | 0.05 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 0.00 | 12.94 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1964 | 1989 | 1990 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 605. | 493. | 502. | 354. | 191. | 77. | 8. | 18. | 63. | 179. | 436. | 623. | 3549. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 18. | 36. | 116. | 200. | 179. | 120. | 42. | 0. | 0. | 711. |