| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.7 | 40.9 | 48.2 | 57.4 | 65.9 | 74.4 | 83.1 | 81.4 | 70.0 | 58.7 | 43.0 | 34.1 | 57.6 |
| Highest Mean Max. Temperature (F) | 41.0 | 46.9 | 55.8 | 67.1 | 71.8 | 82.8 | 91.4 | 88.3 | 80.2 | 68.2 | 49.3 | 44.9 | 61.4 |
| Year Highest Occurred | 1983 | 1988 | 1986 | 1987 | 1966 | 1986 | 1985 | 1967 | 1990 | 1988 | 1990 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 16.0 | 26.6 | 39.5 | 48.8 | 60.2 | 68.4 | 77.8 | 75.7 | 57.9 | 52.6 | 32.2 | 21.5 | 54.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1978 | 1976 | 1983 | 1975 | 1965 | 1969 | 1985 | 1983 | 1975 |
| Mean Temperature (F) | 24.9 | 30.9 | 36.8 | 44.4 | 52.2 | 59.9 | 66.0 | 64.5 | 54.8 | 44.7 | 33.2 | 25.4 | 44.8 |
| Highest Mean Temperature (F) | 32.9 | 36.8 | 43.2 | 50.7 | 56.4 | 65.6 | 71.5 | 69.2 | 62.6 | 52.0 | 39.1 | 34.2 | 46.9 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1990 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 5.6 | 16.5 | 28.2 | 38.7 | 48.4 | 55.0 | 62.5 | 60.1 | 47.0 | 40.8 | 22.7 | 12.5 | 42.6 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1974 | 1981 | 1983 | 1980 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 16.1 | 20.8 | 25.3 | 31.4 | 38.4 | 45.3 | 48.9 | 47.4 | 39.4 | 30.7 | 23.4 | 16.6 | 32.0 |
| Highest Mean Min. Temperature (F) | 26.3 | 29.1 | 30.8 | 34.8 | 42.3 | 48.4 | 53.7 | 50.9 | 44.9 | 35.8 | 29.0 | 26.1 | 34.4 |
| Year Highest Occurred | 1967 | 1961 | 1972 | 1990 | 1987 | 1986 | 1975 | 1961 | 1990 | 1988 | 1988 | 1962 | 1967 |
| Lowest Mean Min. Temperature (F) | -4.8 | 6.4 | 16.8 | 27.6 | 35.4 | 40.4 | 45.1 | 41.7 | 34.0 | 27.3 | 13.1 | 3.5 | 29.3 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1968 | 1981 | 1986 | 1988 | 1971 | 1971 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 1.25 | 0.76 | 0.80 | 0.96 | 1.68 | 1.63 | 0.87 | 1.17 | 1.23 | 0.83 | 1.00 | 1.09 | 13.27 |
| Highest Precipitation (in.) | 3.51 | 2.87 | 2.14 | 2.28 | 4.68 | 4.32 | 2.15 | 3.07 | 3.22 | 3.73 | 3.18 | 5.56 | 20.11 |
| Year Highest Occurred | 1974 | 1986 | 1989 | 1975 | 1980 | 1963 | 1983 | 1975 | 1985 | 1975 | 1962 | 1964 | 1980 |
| Lowest Precipitation (in.) | 0.21 | 0.16 | 0.05 | 0.14 | 0.39 | 0.19 | 0.05 | 0.01 | 0.02 | 0.01 | 0.15 | 0.09 | 8.90 |
| Year Lowest Occurred | 1981 | 1964 | 1969 | 1966 | 1966 | 1978 | 1971 | 1988 | 1987 | 1987 | 1969 | 1976 | 1966 |
| Heating Degree Days (F) | 1243. | 955. | 874. | 618. | 397. | 178. | 57. | 96. | 324. | 629. | 954. | 1228. | 7553. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 25. | 88. | 81. | 18. | 0. | 0. | 0. | 212. |