| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.8 | 48.9 | 52.3 | 56.8 | 62.9 | 67.6 | 71.9 | 72.5 | 67.8 | 58.8 | 50.3 | 46.1 | 58.5 |
| Highest Mean Max. Temperature (F) | 51.1 | 53.7 | 56.6 | 61.0 | 67.3 | 73.4 | 80.8 | 79.4 | 73.1 | 62.4 | 53.4 | 52.9 | 60.4 |
| Year Highest Occurred | 1981 | 1968 | 1981 | 1983 | 1983 | 1978 | 1985 | 1986 | 1974 | 1987 | 1987 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.0 | 41.4 | 48.0 | 52.7 | 58.5 | 62.4 | 68.7 | 66.5 | 64.0 | 56.4 | 41.7 | 39.3 | 56.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1971 | 1966 | 1976 | 1972 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 41.4 | 43.6 | 45.7 | 49.3 | 54.3 | 58.5 | 61.7 | 62.4 | 58.9 | 52.0 | 45.6 | 42.0 | 51.3 |
| Highest Mean Temperature (F) | 46.6 | 47.2 | 49.9 | 52.3 | 58.0 | 62.7 | 66.3 | 66.4 | 62.2 | 54.5 | 49.0 | 48.8 | 52.9 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1989 | 1983 | 1978 | 1985 | 1986 | 1974 | 1979 | 1987 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 32.7 | 36.2 | 40.0 | 45.9 | 51.6 | 55.1 | 58.9 | 59.2 | 55.8 | 49.5 | 36.8 | 35.3 | 49.8 |
| Year Lowest Occurred | 1969 | 1989 | 1970 | 1972 | 1964 | 1971 | 1966 | 1969 | 1970 | 1966 | 1985 | 1990 | 1970 |
| Mean Min. Temperature (F) | 36.9 | 38.3 | 39.0 | 41.7 | 45.7 | 49.4 | 51.5 | 52.2 | 49.9 | 45.0 | 40.9 | 37.8 | 44.0 |
| Highest Mean Min. Temperature (F) | 43.0 | 41.8 | 43.6 | 45.3 | 48.6 | 52.1 | 54.6 | 54.7 | 53.0 | 48.7 | 44.7 | 44.7 | 45.9 |
| Year Highest Occurred | 1964 | 1987 | 1983 | 1990 | 1983 | 1969 | 1990 | 1990 | 1979 | 1988 | 1983 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 28.3 | 31.0 | 27.9 | 38.1 | 42.5 | 46.6 | 48.4 | 49.0 | 47.0 | 41.7 | 31.9 | 31.3 | 41.8 |
| Year Lowest Occurred | 1969 | 1989 | 1970 | 1967 | 1964 | 1965 | 1969 | 1970 | 1970 | 1966 | 1985 | 1990 | 1970 |
| Mean Precipitation (in.) | 2.41 | 1.63 | 1.92 | 1.69 | 1.61 | 1.33 | 0.88 | 0.90 | 1.23 | 1.53 | 2.65 | 3.24 | 21.02 |
| Highest Precipitation (in.) | 6.53 | 3.66 | 7.74 | 3.78 | 2.83 | 3.15 | 2.93 | 2.80 | 3.18 | 4.94 | 5.36 | 9.20 | 35.05 |
| Year Highest Occurred | 1971 | 1961 | 1971 | 1970 | 1977 | 1980 | 1974 | 1975 | 1983 | 1970 | 1990 | 1969 | 1971 |
| Lowest Precipitation (in.) | 0.25 | 0.30 | 0.26 | 0.58 | 0.33 | 0.14 | 0.04 | 0.00 | 0.07 | 0.01 | 0.62 | 0.41 | 15.57 |
| Year Lowest Occurred | 1985 | 1977 | 1969 | 1989 | 1972 | 1987 | 1984 | 1967 | 1989 | 1987 | 1976 | 1985 | 1973 |
| Heating Degree Days (F) | 732. | 599. | 598. | 471. | 332. | 199. | 115. | 109. | 188. | 403. | 582. | 713. | 5041. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 12. | 29. | 0. | 0. | 0. | 0. | 41. |