| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.6 | 55.0 | 59.3 | 65.6 | 73.7 | 82.1 | 89.4 | 88.8 | 82.2 | 70.3 | 54.4 | 47.1 | 68.0 |
| Highest Mean Max. Temperature (F) | 54.8 | 61.3 | 65.9 | 73.6 | 79.9 | 88.9 | 94.4 | 94.9 | 91.8 | 81.4 | 58.0 | 51.5 | 70.8 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1973 | 1987 | 1985 | 1977 | 1974 | 1988 | 1976 | 1973 | 1988 |
| Lowest Mean Max. Temperature (F) | 43.2 | 49.3 | 53.6 | 54.6 | 67.4 | 74.2 | 82.9 | 80.5 | 72.9 | 62.8 | 48.1 | 42.8 | 64.8 |
| Year Lowest Occurred | 1969 | 1969 | 1971 | 1967 | 1962 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 39.0 | 43.1 | 46.1 | 50.5 | 57.2 | 64.4 | 69.6 | 69.3 | 63.2 | 54.5 | 44.3 | 38.7 | 53.3 |
| Highest Mean Temperature (F) | 45.0 | 48.8 | 51.2 | 56.9 | 61.4 | 68.8 | 73.3 | 74.5 | 68.4 | 61.2 | 46.8 | 43.8 | 55.1 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1973 | 1987 | 1985 | 1977 | 1974 | 1988 | 1970 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 34.1 | 37.8 | 43.1 | 43.9 | 53.1 | 59.7 | 65.9 | 65.6 | 58.6 | 50.8 | 38.8 | 32.5 | 51.6 |
| Year Lowest Occurred | 1963 | 1989 | 1971 | 1967 | 1977 | 1980 | 1963 | 1976 | 1986 | 1969 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 29.3 | 31.1 | 32.9 | 35.4 | 40.6 | 46.7 | 49.8 | 49.7 | 44.2 | 38.6 | 34.1 | 30.4 | 38.6 |
| Highest Mean Min. Temperature (F) | 35.1 | 36.9 | 37.6 | 40.7 | 43.7 | 51.1 | 52.4 | 54.0 | 47.9 | 44.9 | 38.8 | 36.2 | 40.4 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1963 | 1969 | 1990 | 1977 | 1967 | 1979 | 1970 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 21.4 | 24.5 | 28.3 | 30.9 | 36.2 | 41.8 | 45.5 | 45.2 | 37.8 | 35.8 | 29.0 | 22.2 | 36.1 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1964 | 1964 | 1962 | 1988 | 1980 | 1964 | 1974 | 1978 | 1990 | 1964 |
| Mean Precipitation (in.) | 3.97 | 2.75 | 2.73 | 1.55 | 1.08 | 0.74 | 0.35 | 0.61 | 1.01 | 1.88 | 4.11 | 4.64 | 25.42 |
| Highest Precipitation (in.) | 8.93 | 7.04 | 8.14 | 3.34 | 2.56 | 2.56 | 1.90 | 2.84 | 4.37 | 6.55 | 10.40 | 13.17 | 41.95 |
| Year Highest Occurred | 1969 | 1983 | 1975 | 1963 | 1963 | 1982 | 1987 | 1976 | 1977 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.17 | 0.22 | 0.19 | 0.34 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.72 | 0.55 | 13.05 |
| Year Lowest Occurred | 1984 | 1988 | 1965 | 1985 | 1982 | 1974 | 1988 | 1988 | 1987 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 806. | 613. | 586. | 435. | 246. | 85. | 13. | 24. | 114. | 329. | 621. | 815. | 4687. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 67. | 156. | 158. | 60. | 0. | 0. | 0. | 441. |