| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.7 | 43.6 | 48.4 | 57.0 | 67.3 | 78.3 | 87.0 | 84.4 | 75.2 | 63.5 | 49.2 | 40.6 | 61.2 |
| Highest Mean Max. Temperature (F) | 47.2 | 51.3 | 59.1 | 67.0 | 74.6 | 85.5 | 90.7 | 89.0 | 82.0 | 72.5 | 55.8 | 48.6 | 64.1 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1969 | 1974 | 1988 | 1986 | 1979 | 1988 | 1976 | 1979 | 1981 |
| Lowest Mean Max. Temperature (F) | 32.4 | 37.0 | 41.0 | 46.6 | 57.9 | 68.8 | 83.5 | 77.6 | 67.9 | 54.2 | 42.6 | 31.6 | 58.7 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1975 | 1977 | 1963 | 1965 | 1968 | 1965 | 1984 | 1985 | 1967 | 1964 |
| Mean Temperature (F) | 24.6 | 29.5 | 34.6 | 41.5 | 50.5 | 59.6 | 67.5 | 65.5 | 56.3 | 45.8 | 34.2 | 25.6 | 44.6 |
| Highest Mean Temperature (F) | 34.4 | 36.8 | 41.7 | 48.8 | 56.9 | 64.1 | 70.0 | 69.6 | 61.1 | 52.0 | 38.8 | 33.8 | 47.6 |
| Year Highest Occurred | 1986 | 1963 | 1989 | 1989 | 1969 | 1961 | 1989 | 1969 | 1979 | 1988 | 1981 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 17.1 | 22.3 | 26.2 | 34.1 | 44.9 | 53.7 | 64.1 | 60.7 | 50.5 | 40.2 | 27.5 | 17.6 | 42.2 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1975 | 1977 | 1963 | 1987 | 1976 | 1965 | 1984 | 1985 | 1967 | 1964 |
| Mean Min. Temperature (F) | 9.4 | 15.4 | 20.7 | 26.0 | 33.7 | 40.7 | 48.0 | 46.5 | 37.3 | 28.2 | 19.0 | 10.6 | 28.0 |
| Highest Mean Min. Temperature (F) | 21.5 | 25.0 | 28.4 | 30.8 | 39.1 | 44.6 | 50.2 | 50.6 | 42.3 | 34.0 | 24.2 | 19.7 | 31.0 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1990 | 1969 | 1972 | 1967 | 1971 | 1963 | 1963 | 1966 | 1981 | 1981 |
| Lowest Mean Min. Temperature (F) | -0.3 | 7.6 | 11.3 | 18.8 | 29.8 | 38.1 | 44.0 | 40.2 | 32.8 | 22.4 | 12.3 | -0.5 | 25.7 |
| Year Lowest Occurred | 1989 | 1966 | 1969 | 1970 | 1965 | 1982 | 1987 | 1976 | 1971 | 1970 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 0.70 | 0.65 | 0.96 | 1.00 | 1.15 | 0.88 | 0.69 | 0.83 | 1.01 | 0.89 | 0.67 | 0.70 | 10.13 |
| Highest Precipitation (in.) | 1.86 | 2.19 | 2.17 | 3.41 | 3.26 | 3.53 | 2.30 | 2.51 | 4.99 | 3.67 | 1.69 | 2.11 | 15.53 |
| Year Highest Occurred | 1967 | 1969 | 1973 | 1978 | 1977 | 1963 | 1987 | 1983 | 1982 | 1981 | 1970 | 1966 | 1982 |
| Lowest Precipitation (in.) | 0.11 | 0.01 | 0.07 | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 | 0.01 | 0.10 | 0.14 | 0.00 | 4.22 |
| Year Lowest Occurred | 1970 | 1972 | 1972 | 1989 | 1970 | 1978 | 1963 | 1985 | 1974 | 1966 | 1972 | 1976 | 1974 |
| Heating Degree Days (F) | 1252. | 994. | 942. | 705. | 450. | 188. | 14. | 62. | 274. | 595. | 924. | 1221. | 7621. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 26. | 92. | 77. | 13. | 0. | 0. | 0. | 208. |