| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.0 | 50.1 | 54.7 | 59.9 | 66.4 | 72.5 | 77.1 | 77.8 | 72.0 | 61.6 | 50.8 | 45.1 | 61.1 |
| Highest Mean Max. Temperature (F) | 50.5 | 57.1 | 59.8 | 65.5 | 70.6 | 78.6 | 85.4 | 86.1 | 79.0 | 69.0 | 54.5 | 49.3 | 64.1 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1969 | 1987 | 1985 | 1967 | 1974 | 1987 | 1987 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.3 | 43.4 | 49.7 | 55.5 | 59.4 | 66.5 | 72.0 | 71.8 | 66.9 | 57.9 | 43.2 | 39.7 | 59.2 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1980 | 1963 | 1976 | 1978 | 1975 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.3 | 42.6 | 45.5 | 49.5 | 55.2 | 60.8 | 64.6 | 65.2 | 60.3 | 52.2 | 44.6 | 39.8 | 51.6 |
| Highest Mean Temperature (F) | 44.2 | 47.1 | 50.1 | 53.6 | 58.4 | 64.5 | 69.3 | 69.6 | 63.9 | 56.3 | 48.3 | 44.2 | 54.0 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1989 | 1987 | 1969 | 1985 | 1967 | 1974 | 1988 | 1987 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 32.1 | 35.0 | 41.7 | 45.5 | 51.2 | 56.7 | 61.7 | 61.1 | 56.8 | 49.7 | 36.6 | 34.3 | 50.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1973 | 1965 | 1972 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 33.5 | 35.1 | 36.3 | 39.0 | 43.9 | 49.0 | 52.1 | 52.5 | 48.5 | 42.7 | 38.3 | 34.5 | 42.1 |
| Highest Mean Min. Temperature (F) | 38.0 | 39.7 | 40.3 | 44.1 | 47.6 | 53.6 | 55.3 | 56.0 | 53.3 | 49.2 | 42.3 | 39.6 | 43.9 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1990 | 1987 | 1969 | 1990 | 1990 | 1990 | 1988 | 1983 | 1966 | 1990 |
| Lowest Mean Min. Temperature (F) | 25.1 | 26.5 | 31.5 | 34.4 | 40.9 | 45.6 | 49.4 | 48.4 | 44.0 | 38.6 | 29.9 | 28.8 | 40.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1964 | 1965 | 1962 | 1973 | 1965 | 1972 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 6.96 | 5.17 | 4.90 | 3.21 | 2.22 | 1.87 | 0.85 | 1.34 | 2.21 | 4.04 | 7.00 | 7.26 | 47.03 |
| Highest Precipitation (in.) | 14.63 | 10.61 | 8.29 | 5.13 | 5.10 | 4.52 | 2.38 | 4.15 | 6.73 | 9.77 | 12.21 | 11.66 | 61.25 |
| Year Highest Occurred | 1990 | 1961 | 1971 | 1982 | 1984 | 1984 | 1974 | 1977 | 1978 | 1967 | 1983 | 1970 | 1990 |
| Lowest Precipitation (in.) | 0.34 | 1.23 | 0.33 | 0.92 | 0.55 | 0.24 | 0.00 | 0.00 | 0.00 | 0.44 | 1.24 | 2.08 | 31.88 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1982 | 1987 | 1984 | 1967 | 1990 | 1978 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 797. | 627. | 605. | 465. | 304. | 148. | 64. | 77. | 158. | 397. | 612. | 781. | 5035. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 22. | 51. | 84. | 17. | 0. | 0. | 0. | 174. |