| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.0 | 37.6 | 42.1 | 51.3 | 61.9 | 72.9 | 78.9 | 75.9 | 68.5 | 58.1 | 43.8 | 35.6 | 55.1 |
| Highest Mean Max. Temperature (F) | 44.2 | 43.9 | 52.7 | 60.6 | 69.1 | 78.8 | 82.2 | 79.4 | 74.2 | 64.7 | 49.5 | 47.4 | 57.6 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1974 | 1989 | 1985 | 1979 | 1964 | 1976 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 27.3 | 30.7 | 35.1 | 41.3 | 56.7 | 67.2 | 74.6 | 68.2 | 62.2 | 50.0 | 35.4 | 28.6 | 53.3 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1975 | 1965 | 1967 | 1968 | 1968 | 1986 | 1969 | 1972 | 1971 | 1982 |
| Mean Temperature (F) | 21.5 | 24.4 | 29.3 | 37.2 | 46.3 | 55.9 | 62.5 | 60.2 | 52.5 | 42.5 | 30.9 | 22.4 | 40.5 |
| Highest Mean Temperature (F) | 29.9 | 31.2 | 37.3 | 45.3 | 51.3 | 62.5 | 64.9 | 62.7 | 55.7 | 47.9 | 35.3 | 32.0 | 43.2 |
| Year Highest Occurred | 1986 | 1963 | 1989 | 1989 | 1984 | 1981 | 1989 | 1966 | 1979 | 1988 | 1967 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 15.3 | 17.9 | 22.2 | 29.4 | 42.3 | 51.0 | 59.7 | 55.5 | 48.4 | 37.0 | 24.9 | 15.2 | 38.4 |
| Year Lowest Occurred | 1979 | 1966 | 1962 | 1975 | 1975 | 1965 | 1962 | 1968 | 1986 | 1969 | 1972 | 1990 | 1964 |
| Mean Min. Temperature (F) | 7.8 | 11.1 | 16.4 | 23.1 | 30.7 | 38.8 | 46.0 | 44.5 | 36.4 | 26.8 | 17.8 | 9.1 | 25.7 |
| Highest Mean Min. Temperature (F) | 15.5 | 18.4 | 23.8 | 30.0 | 34.2 | 47.4 | 48.9 | 48.3 | 41.4 | 31.3 | 21.8 | 16.5 | 28.8 |
| Year Highest Occurred | 1986 | 1963 | 1989 | 1989 | 1985 | 1981 | 1981 | 1986 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 2.2 | 4.2 | 7.9 | 16.8 | 27.0 | 34.6 | 42.3 | 40.5 | 32.5 | 21.9 | 12.7 | 1.4 | 23.0 |
| Year Lowest Occurred | 1989 | 1966 | 1962 | 1983 | 1975 | 1965 | 1962 | 1976 | 1971 | 1982 | 1964 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.16 | 1.35 | 1.57 | 0.95 | 1.02 | 0.57 | 1.51 | 2.20 | 1.69 | 1.20 | 1.20 | 1.14 | 15.56 |
| Highest Precipitation (in.) | 4.47 | 5.30 | 4.95 | 5.75 | 2.75 | 3.28 | 5.66 | 7.68 | 5.11 | 4.89 | 5.98 | 3.68 | 22.50 |
| Year Highest Occurred | 1979 | 1969 | 1983 | 1965 | 1987 | 1972 | 1984 | 1963 | 1986 | 1972 | 1978 | 1965 | 1965 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.08 | 0.08 | 0.00 | 0.00 | 0.15 | 0.00 | 8.97 |
| Year Lowest Occurred | 1970 | 1972 | 1972 | 1989 | 1986 | 1980 | 1979 | 1985 | 1979 | 1968 | 1988 | 1989 | 1989 |
| Heating Degree Days (F) | 1349. | 1137. | 1107. | 834. | 580. | 280. | 93. | 155. | 375. | 698. | 1023. | 1321. | 8952. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 15. | 6. | 0. | 0. | 0. | 0. | 28. |