| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.7 | 57.5 | 60.1 | 67.1 | 76.5 | 85.1 | 92.9 | 91.9 | 86.1 | 75.6 | 60.6 | 54.4 | 71.9 |
| Highest Mean Max. Temperature (F) | 60.4 | 65.9 | 66.8 | 75.7 | 82.7 | 90.7 | 97.5 | 98.6 | 92.8 | 84.2 | 71.9 | 63.6 | 74.1 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1987 | 1973 | 1961 | 1988 | 1967 | 1974 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.1 | 47.0 | 54.8 | 51.3 | 66.9 | 78.1 | 86.9 | 83.4 | 77.8 | 68.2 | 51.1 | 46.5 | 69.1 |
| Year Lowest Occurred | 1973 | 1969 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1973 | 1970 | 1982 |
| Mean Temperature (F) | 44.5 | 47.0 | 49.0 | 54.3 | 62.4 | 70.0 | 76.5 | 75.7 | 70.5 | 61.6 | 49.8 | 44.2 | 58.8 |
| Highest Mean Temperature (F) | 48.8 | 53.0 | 54.1 | 60.3 | 67.7 | 74.5 | 80.7 | 80.5 | 75.1 | 68.4 | 56.7 | 49.2 | 60.1 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1966 | 1973 | 1977 | 1988 | 1967 | 1967 | 1988 | 1976 | 1962 | 1988 |
| Lowest Mean Temperature (F) | 40.5 | 40.4 | 45.1 | 43.2 | 55.1 | 63.9 | 71.1 | 70.1 | 64.3 | 55.9 | 44.3 | 38.3 | 56.7 |
| Year Lowest Occurred | 1982 | 1969 | 1962 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 34.1 | 36.3 | 37.9 | 41.4 | 48.2 | 54.8 | 60.0 | 59.5 | 54.7 | 47.5 | 39.0 | 34.0 | 45.6 |
| Highest Mean Min. Temperature (F) | 39.9 | 43.5 | 43.3 | 46.1 | 52.6 | 58.8 | 63.8 | 62.5 | 58.8 | 53.1 | 43.1 | 38.4 | 47.2 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1973 | 1981 | 1988 | 1966 | 1967 | 1987 | 1967 | 1969 | 1981 |
| Lowest Mean Min. Temperature (F) | 30.3 | 30.1 | 34.3 | 35.0 | 43.2 | 49.7 | 55.2 | 55.6 | 50.7 | 40.9 | 33.6 | 26.6 | 43.6 |
| Year Lowest Occurred | 1977 | 1990 | 1976 | 1967 | 1977 | 1980 | 1983 | 1985 | 1965 | 1971 | 1985 | 1990 | 1971 |
| Mean Precipitation (in.) | 5.46 | 4.32 | 4.58 | 2.76 | 1.53 | 0.79 | 0.16 | 0.54 | 1.25 | 2.45 | 5.12 | 5.03 | 33.99 |
| Highest Precipitation (in.) | 13.62 | 9.64 | 12.13 | 7.61 | 4.77 | 2.56 | 1.51 | 3.09 | 5.53 | 6.38 | 12.86 | 12.04 | 60.80 |
| Year Highest Occurred | 1970 | 1979 | 1989 | 1978 | 1977 | 1971 | 1974 | 1976 | 1986 | 1972 | 1970 | 1969 | 1983 |
| Lowest Precipitation (in.) | 0.35 | 0.11 | 1.65 | 0.31 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.80 | 0.00 | 17.13 |
| Year Lowest Occurred | 1984 | 1988 | 1969 | 1987 | 1976 | 1979 | 1989 | 1987 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 636. | 504. | 496. | 347. | 146. | 26. | 0. | 0. | 20. | 167. | 456. | 645. | 3443. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 26. | 65. | 176. | 357. | 332. | 185. | 61. | 0. | 0. | 1202. |