| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.5 | 41.9 | 50.4 | 59.0 | 67.3 | 76.0 | 84.6 | 84.1 | 74.9 | 62.3 | 45.2 | 35.3 | 59.6 |
| Highest Mean Max. Temperature (F) | 40.8 | 51.8 | 57.6 | 69.3 | 72.6 | 83.3 | 90.7 | 91.8 | 85.8 | 73.7 | 49.8 | 40.9 | 63.0 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1969 | 1986 | 1985 | 1967 | 1990 | 1988 | 1976 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 24.1 | 28.3 | 45.2 | 50.8 | 61.3 | 71.3 | 79.9 | 77.2 | 67.3 | 56.2 | 33.9 | 22.4 | 55.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1962 | 1980 | 1983 | 1976 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 26.4 | 32.2 | 38.5 | 44.9 | 52.0 | 59.4 | 64.9 | 64.2 | 56.1 | 46.2 | 35.6 | 27.2 | 45.6 |
| Highest Mean Temperature (F) | 33.8 | 40.0 | 44.1 | 51.4 | 55.0 | 63.7 | 69.1 | 68.3 | 62.4 | 54.3 | 38.9 | 33.9 | 47.3 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1971 | 1963 | 1988 | 1989 | 1977 | 1990 |
| Lowest Mean Temperature (F) | 14.3 | 18.5 | 33.5 | 38.9 | 49.0 | 56.3 | 61.2 | 60.1 | 51.1 | 42.3 | 25.0 | 12.7 | 41.5 |
| Year Lowest Occurred | 1979 | 1989 | 1969 | 1975 | 1977 | 1976 | 1986 | 1980 | 1961 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 18.3 | 22.5 | 26.4 | 30.8 | 36.7 | 42.9 | 45.2 | 44.2 | 37.2 | 30.1 | 26.0 | 19.0 | 31.6 |
| Highest Mean Min. Temperature (F) | 26.8 | 31.5 | 30.5 | 34.6 | 39.1 | 46.8 | 50.5 | 48.9 | 42.8 | 34.8 | 29.9 | 28.0 | 33.0 |
| Year Highest Occurred | 1981 | 1961 | 1986 | 1989 | 1986 | 1982 | 1975 | 1983 | 1966 | 1988 | 1988 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | 4.4 | 8.6 | 19.5 | 26.9 | 33.8 | 39.3 | 41.8 | 40.1 | 33.1 | 23.5 | 16.1 | 3.0 | 27.1 |
| Year Lowest Occurred | 1979 | 1989 | 1969 | 1975 | 1965 | 1962 | 1969 | 1969 | 1971 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.94 | 1.34 | 1.40 | 1.25 | 1.68 | 1.43 | 0.86 | 0.90 | 1.24 | 1.43 | 1.88 | 2.00 | 17.35 |
| Highest Precipitation (in.) | 4.70 | 3.91 | 3.05 | 3.74 | 3.34 | 3.93 | 3.27 | 4.34 | 2.83 | 4.32 | 3.66 | 7.02 | 23.36 |
| Year Highest Occurred | 1970 | 1986 | 1972 | 1978 | 1971 | 1981 | 1982 | 1989 | 1970 | 1975 | 1973 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.37 | 0.32 | 0.40 | 0.07 | 0.69 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.25 | 11.23 |
| Year Lowest Occurred | 1981 | 1967 | 1965 | 1977 | 1983 | 1986 | 1962 | 1969 | 1974 | 1987 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1197. | 918. | 822. | 603. | 403. | 181. | 64. | 95. | 284. | 583. | 882. | 1172. | 7204. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 13. | 61. | 70. | 17. | 0. | 0. | 0. | 161. |