| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.6 | 43.6 | 49.7 | 58.6 | 67.7 | 77.9 | 80.7 | 77.6 | 71.1 | 61.5 | 48.9 | 40.8 | 59.8 |
| Highest Mean Max. Temperature (F) | 51.1 | 50.4 | 58.3 | 66.5 | 74.9 | 84.5 | 87.3 | 81.7 | 77.2 | 66.8 | 54.3 | 50.1 | 62.7 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1984 | 1980 | 1980 | 1962 | 1983 | 1979 | 1981 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 33.1 | 34.8 | 42.7 | 51.1 | 63.9 | 73.4 | 76.9 | 71.9 | 67.2 | 53.5 | 39.6 | 34.7 | 58.1 |
| Year Lowest Occurred | 1979 | 1964 | 1973 | 1973 | 1979 | 1965 | 1990 | 1968 | 1965 | 1984 | 1972 | 1967 | 1973 |
| Mean Temperature (F) | 28.5 | 32.4 | 38.1 | 46.0 | 54.8 | 64.5 | 68.0 | 65.5 | 59.1 | 49.5 | 38.0 | 30.1 | 47.9 |
| Highest Mean Temperature (F) | 37.4 | 37.2 | 45.8 | 52.7 | 60.4 | 69.7 | 71.3 | 68.6 | 63.1 | 54.4 | 42.0 | 38.4 | 49.8 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1984 | 1990 | 1980 | 1962 | 1983 | 1963 | 1966 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 22.7 | 24.2 | 32.5 | 39.7 | 50.8 | 60.3 | 65.1 | 62.1 | 56.1 | 43.3 | 30.5 | 24.1 | 46.5 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1983 | 1965 | 1990 | 1968 | 1965 | 1984 | 1972 | 1990 | 1975 |
| Mean Min. Temperature (F) | 17.5 | 21.2 | 26.4 | 33.3 | 41.9 | 51.0 | 55.2 | 53.4 | 47.1 | 37.5 | 27.1 | 19.4 | 35.9 |
| Highest Mean Min. Temperature (F) | 24.7 | 26.6 | 33.2 | 38.9 | 46.3 | 55.1 | 59.0 | 57.3 | 49.8 | 42.7 | 31.6 | 26.7 | 37.3 |
| Year Highest Occurred | 1969 | 1962 | 1972 | 1989 | 1963 | 1990 | 1966 | 1969 | 1963 | 1963 | 1966 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | 12.2 | 13.6 | 21.2 | 27.9 | 36.7 | 47.2 | 50.9 | 49.4 | 43.7 | 30.2 | 20.8 | 13.3 | 32.8 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1983 | 1983 | 1965 | 1976 | 1976 | 1976 | 1976 | 1976 | 1990 | 1976 |
| Mean Precipitation (in.) | 0.86 | 0.80 | 1.22 | 1.00 | 1.17 | 1.36 | 3.25 | 3.52 | 2.12 | 1.32 | 1.02 | 1.08 | 18.72 |
| Highest Precipitation (in.) | 2.81 | 2.78 | 4.11 | 3.23 | 3.10 | 5.67 | 6.60 | 6.42 | 4.55 | 3.86 | 6.60 | 3.21 | 25.67 |
| Year Highest Occurred | 1979 | 1987 | 1973 | 1975 | 1979 | 1986 | 1968 | 1967 | 1975 | 1974 | 1978 | 1984 | 1969 |
| Lowest Precipitation (in.) | 0.01 | 0.04 | 0.09 | 0.00 | 0.05 | 0.00 | 0.35 | 1.07 | 0.38 | 0.02 | 0.04 | 0.01 | 11.26 |
| Year Lowest Occurred | 1986 | 1972 | 1972 | 1967 | 1962 | 1980 | 1980 | 1964 | 1968 | 1976 | 1989 | 1981 | 1964 |
| Heating Degree Days (F) | 1132. | 913. | 834. | 570. | 322. | 77. | 14. | 50. | 184. | 481. | 810. | 1082. | 6469. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 62. | 107. | 65. | 7. | 0. | 0. | 0. | 246. |