| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 51.1 | 54.1 | 55.6 | 58.0 | 61.9 | 65.3 | 68.2 | 69.2 | 69.9 | 64.4 | 56.3 | 51.4 | 60.5 |
| Highest Mean Max. Temperature (F) | 59.2 | 60.4 | 60.6 | 64.5 | 66.5 | 71.0 | 71.5 | 73.7 | 75.5 | 70.9 | 61.8 | 55.1 | 63.2 |
| Year Highest Occurred | 1981 | 1970 | 1986 | 1989 | 1987 | 1978 | 1979 | 1981 | 1975 | 1978 | 1976 | 1986 | 1981 |
| Lowest Mean Max. Temperature (F) | 43.5 | 47.0 | 51.6 | 54.2 | 56.9 | 62.2 | 64.7 | 65.0 | 65.2 | 59.5 | 48.9 | 45.8 | 58.3 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1962 | 1975 | 1962 | 1973 | 1986 | 1975 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 44.0 | 46.2 | 47.1 | 49.4 | 53.3 | 57.2 | 59.9 | 60.7 | 59.5 | 54.6 | 48.5 | 44.3 | 52.1 |
| Highest Mean Temperature (F) | 49.7 | 51.5 | 51.3 | 54.0 | 56.6 | 60.8 | 62.3 | 63.0 | 62.7 | 57.5 | 51.6 | 48.0 | 53.1 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1987 | 1978 | 1983 | 1983 | 1979 | 1978 | 1965 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 38.1 | 39.4 | 43.9 | 45.5 | 50.9 | 54.8 | 57.2 | 57.5 | 56.5 | 52.4 | 41.3 | 38.7 | 50.7 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1964 | 1962 | 1974 | 1973 | 1972 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 36.7 | 38.2 | 38.4 | 40.6 | 44.7 | 48.9 | 51.6 | 52.1 | 49.1 | 44.7 | 40.7 | 37.2 | 43.6 |
| Highest Mean Min. Temperature (F) | 40.6 | 43.0 | 41.9 | 44.6 | 47.0 | 54.0 | 53.6 | 54.6 | 52.4 | 49.3 | 45.3 | 42.7 | 45.0 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1990 | 1963 | 1969 | 1968 | 1990 | 1963 | 1988 | 1965 | 1966 | 1968 |
| Lowest Mean Min. Temperature (F) | 30.5 | 31.7 | 33.2 | 36.5 | 42.4 | 46.8 | 48.4 | 49.0 | 46.3 | 40.4 | 33.7 | 30.9 | 40.2 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1967 | 1982 | 1987 | 1974 | 1984 | 1983 | 1983 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 10.88 | 9.13 | 8.19 | 5.17 | 3.56 | 2.78 | 1.54 | 1.45 | 3.15 | 6.17 | 10.90 | 11.52 | 74.44 |
| Highest Precipitation (in.) | 19.11 | 23.00 | 12.91 | 9.56 | 6.94 | 6.33 | 7.60 | 4.75 | 7.41 | 12.57 | 17.98 | 18.08 | 97.55 |
| Year Highest Occurred | 1965 | 1961 | 1987 | 1982 | 1988 | 1968 | 1983 | 1968 | 1978 | 1975 | 1983 | 1970 | 1983 |
| Lowest Precipitation (in.) | 0.77 | 2.63 | 1.22 | 0.91 | 1.00 | 0.66 | 0.23 | 0.09 | 0.09 | 0.50 | 2.02 | 3.17 | 48.73 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1967 | 1976 | 1967 | 1967 | 1975 | 1987 | 1976 | 1985 | 1976 |
| Heating Degree Days (F) | 651. | 526. | 555. | 468. | 363. | 234. | 161. | 138. | 172. | 322. | 495. | 642. | 4727. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 7. | 0. | 0. | 0. | 7. |