| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 34.7 | 39.0 | 46.7 | 57.1 | 66.2 | 76.2 | 80.6 | 77.8 | 71.0 | 61.1 | 46.4 | 36.5 | 57.8 |
| Highest Mean Max. Temperature (F) | 44.5 | 45.7 | 55.3 | 62.7 | 72.9 | 81.5 | 85.1 | 81.5 | 75.4 | 67.7 | 50.7 | 48.6 | 60.1 |
| Year Highest Occurred | 1981 | 1976 | 1989 | 1989 | 1974 | 1990 | 1980 | 1962 | 1983 | 1963 | 1989 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 27.1 | 31.6 | 40.0 | 49.3 | 60.6 | 70.9 | 77.5 | 73.4 | 67.1 | 51.2 | 37.0 | 29.4 | 55.5 |
| Year Lowest Occurred | 1988 | 1966 | 1965 | 1983 | 1983 | 1983 | 1973 | 1968 | 1965 | 1984 | 1972 | 1978 | 1984 |
| Mean Temperature (F) | 21.6 | 26.0 | 33.6 | 42.4 | 51.2 | 60.4 | 65.4 | 62.9 | 56.1 | 46.2 | 33.4 | 23.7 | 43.6 |
| Highest Mean Temperature (F) | 29.7 | 31.8 | 40.4 | 47.1 | 55.8 | 64.7 | 69.0 | 65.5 | 60.0 | 50.9 | 37.6 | 33.9 | 45.5 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1963 | 1990 | 1980 | 1969 | 1990 | 1979 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 13.5 | 19.4 | 27.5 | 36.6 | 47.3 | 55.4 | 63.0 | 58.4 | 52.3 | 39.9 | 25.4 | 17.4 | 41.8 |
| Year Lowest Occurred | 1984 | 1979 | 1969 | 1973 | 1983 | 1969 | 1973 | 1967 | 1965 | 1984 | 1972 | 1978 | 1973 |
| Mean Min. Temperature (F) | 8.4 | 13.0 | 20.4 | 27.6 | 36.1 | 44.5 | 50.2 | 48.1 | 41.2 | 31.3 | 20.3 | 10.8 | 29.3 |
| Highest Mean Min. Temperature (F) | 16.0 | 18.9 | 25.8 | 32.1 | 40.8 | 48.4 | 53.1 | 51.4 | 45.7 | 36.6 | 25.1 | 19.1 | 31.2 |
| Year Highest Occurred | 1980 | 1970 | 1972 | 1981 | 1963 | 1977 | 1989 | 1977 | 1990 | 1972 | 1965 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | -0.3 | 6.1 | 13.7 | 21.4 | 33.2 | 39.4 | 46.8 | 42.6 | 37.5 | 27.8 | 13.1 | 5.3 | 27.3 |
| Year Lowest Occurred | 1984 | 1984 | 1969 | 1973 | 1978 | 1969 | 1967 | 1967 | 1965 | 1970 | 1979 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.33 | 0.35 | 0.66 | 0.60 | 0.89 | 0.96 | 1.89 | 1.93 | 1.30 | 0.84 | 0.46 | 0.41 | 10.62 |
| Highest Precipitation (in.) | 1.55 | 1.41 | 2.17 | 1.93 | 2.43 | 4.32 | 5.01 | 4.22 | 3.87 | 2.26 | 1.41 | 1.12 | 16.29 |
| Year Highest Occurred | 1979 | 1989 | 1990 | 1980 | 1980 | 1969 | 1968 | 1967 | 1965 | 1984 | 1977 | 1972 | 1969 |
| Lowest Precipitation (in.) | 0.01 | 0.01 | 0.05 | 0.00 | 0.02 | 0.05 | 0.29 | 0.25 | 0.04 | 0.07 | 0.00 | 0.00 | 6.55 |
| Year Lowest Occurred | 1981 | 1970 | 1966 | 1974 | 1975 | 1980 | 1979 | 1985 | 1978 | 1966 | 1989 | 1970 | 1962 |
| Heating Degree Days (F) | 1345. | 1092. | 973. | 678. | 428. | 158. | 45. | 90. | 267. | 583. | 948. | 1280. | 7887. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 20. | 57. | 25. | 0. | 0. | 0. | 0. | 102. |