| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.8 | 49.0 | 52.5 | 57.0 | 62.9 | 68.1 | 72.2 | 73.1 | 67.8 | 59.5 | 50.4 | 44.9 | 58.5 |
| Highest Mean Max. Temperature (F) | 50.7 | 55.0 | 56.8 | 61.8 | 66.7 | 73.4 | 79.1 | 77.6 | 73.4 | 63.8 | 54.9 | 50.0 | 59.9 |
| Year Highest Occurred | 1986 | 1977 | 1981 | 1989 | 1969 | 1978 | 1985 | 1981 | 1974 | 1965 | 1965 | 1979 | 1981 |
| Lowest Mean Max. Temperature (F) | 36.2 | 42.2 | 48.1 | 53.6 | 59.3 | 64.0 | 68.4 | 68.4 | 64.0 | 55.3 | 41.8 | 38.2 | 56.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1964 | 1962 | 1971 | 1986 | 1976 | 1972 | 1990 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.1 | 42.0 | 44.8 | 48.8 | 54.2 | 59.6 | 62.9 | 63.3 | 58.2 | 51.0 | 44.1 | 39.6 | 50.6 |
| Highest Mean Temperature (F) | 44.8 | 46.7 | 48.5 | 52.6 | 56.6 | 65.0 | 67.1 | 67.7 | 61.6 | 54.5 | 48.6 | 45.0 | 52.3 |
| Year Highest Occurred | 1986 | 1977 | 1986 | 1989 | 1979 | 1978 | 1985 | 1977 | 1979 | 1965 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 31.5 | 33.9 | 40.4 | 44.4 | 51.4 | 56.2 | 60.3 | 59.8 | 54.5 | 46.9 | 36.0 | 32.9 | 48.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1974 | 1971 | 1986 | 1973 | 1970 | 1972 | 1985 | 1983 | 1972 |
| Mean Min. Temperature (F) | 33.3 | 35.0 | 37.1 | 40.5 | 45.5 | 51.0 | 53.5 | 53.4 | 48.5 | 42.5 | 37.9 | 34.2 | 42.7 |
| Highest Mean Min. Temperature (F) | 38.8 | 40.9 | 41.2 | 44.0 | 48.8 | 56.6 | 56.6 | 57.8 | 52.6 | 48.5 | 42.3 | 41.0 | 44.8 |
| Year Highest Occurred | 1986 | 1961 | 1978 | 1979 | 1979 | 1978 | 1978 | 1977 | 1978 | 1988 | 1965 | 1980 | 1978 |
| Lowest Mean Min. Temperature (F) | 26.2 | 25.6 | 32.7 | 35.1 | 42.2 | 48.3 | 50.5 | 49.7 | 44.2 | 37.7 | 30.2 | 26.9 | 40.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1965 | 1971 | 1969 | 1970 | 1970 | 1972 | 1985 | 1983 | 1970 |
| Mean Precipitation (in.) | 4.49 | 3.23 | 3.62 | 2.75 | 2.41 | 2.06 | 1.24 | 1.44 | 2.15 | 3.08 | 4.91 | 5.13 | 36.51 |
| Highest Precipitation (in.) | 9.77 | 6.32 | 5.80 | 5.30 | 6.03 | 5.35 | 2.80 | 3.89 | 5.42 | 8.53 | 9.30 | 7.70 | 44.17 |
| Year Highest Occurred | 1971 | 1961 | 1974 | 1972 | 1977 | 1983 | 1982 | 1968 | 1969 | 1975 | 1983 | 1987 | 1984 |
| Lowest Precipitation (in.) | 0.54 | 1.02 | 0.55 | 1.12 | 0.63 | 0.25 | 0.09 | 0.00 | 0.27 | 0.08 | 0.95 | 0.76 | 28.75 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1966 | 1963 | 1961 | 1985 | 1967 | 1975 | 1987 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 803. | 644. | 626. | 486. | 335. | 174. | 89. | 97. | 209. | 434. | 627. | 787. | 5311. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 24. | 44. | 0. | 0. | 0. | 0. | 80. |