| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.1 | 35.3 | 42.8 | 53.7 | 64.3 | 72.4 | 79.7 | 78.9 | 66.9 | 53.6 | 37.9 | 29.9 | 53.7 |
| Highest Mean Max. Temperature (F) | 35.3 | 40.5 | 49.8 | 61.6 | 69.5 | 80.1 | 88.1 | 88.0 | 80.9 | 61.1 | 42.5 | 36.6 | 56.2 |
| Year Highest Occurred | 1983 | 1963 | 1968 | 1987 | 1966 | 1961 | 1985 | 1967 | 1967 | 1974 | 1981 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 15.5 | 24.5 | 37.7 | 46.8 | 57.7 | 64.9 | 73.3 | 70.8 | 54.7 | 47.8 | 23.6 | 19.0 | 50.8 |
| Year Lowest Occurred | 1979 | 1989 | 1989 | 1975 | 1978 | 1981 | 1986 | 1964 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 22.0 | 27.1 | 33.3 | 41.9 | 50.6 | 58.1 | 63.4 | 62.7 | 52.8 | 42.6 | 31.6 | 23.8 | 42.5 |
| Highest Mean Temperature (F) | 29.0 | 33.1 | 39.9 | 47.0 | 54.8 | 63.6 | 69.1 | 67.1 | 62.2 | 46.7 | 36.4 | 30.7 | 44.4 |
| Year Highest Occurred | 1983 | 1961 | 1986 | 1987 | 1987 | 1986 | 1985 | 1967 | 1967 | 1965 | 1962 | 1962 | 1988 |
| Lowest Mean Temperature (F) | 3.9 | 14.2 | 25.5 | 36.4 | 47.3 | 53.6 | 59.5 | 57.0 | 44.7 | 38.8 | 17.3 | 11.7 | 40.1 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1974 | 1981 | 1986 | 1964 | 1965 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 14.8 | 18.9 | 23.7 | 30.0 | 36.9 | 43.8 | 47.1 | 46.4 | 38.8 | 31.6 | 25.2 | 17.6 | 31.2 |
| Highest Mean Min. Temperature (F) | 24.1 | 27.8 | 30.2 | 34.1 | 40.7 | 47.9 | 51.1 | 50.0 | 43.4 | 35.2 | 30.8 | 25.4 | 33.4 |
| Year Highest Occurred | 1965 | 1961 | 1986 | 1988 | 1987 | 1986 | 1975 | 1983 | 1967 | 1963 | 1962 | 1962 | 1986 |
| Lowest Mean Min. Temperature (F) | -7.8 | 3.8 | 13.0 | 25.5 | 34.1 | 41.3 | 44.0 | 42.3 | 33.1 | 27.3 | 10.9 | 4.3 | 29.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1982 | 1971 | 1965 | 1970 | 1970 | 1987 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 3.22 | 2.30 | 1.83 | 1.68 | 2.65 | 3.18 | 1.86 | 1.75 | 2.14 | 2.04 | 3.12 | 3.33 | 29.10 |
| Highest Precipitation (in.) | 6.67 | 5.10 | 3.68 | 3.33 | 4.94 | 6.83 | 4.70 | 4.48 | 6.17 | 5.05 | 6.48 | 7.72 | 41.38 |
| Year Highest Occurred | 1969 | 1982 | 1964 | 1965 | 1968 | 1981 | 1983 | 1978 | 1968 | 1990 | 1989 | 1980 | 1964 |
| Lowest Precipitation (in.) | 0.16 | 0.42 | 0.47 | 0.33 | 0.96 | 0.75 | 0.09 | 0.01 | 0.02 | 0.14 | 0.65 | 0.68 | 20.66 |
| Year Lowest Occurred | 1985 | 1989 | 1965 | 1977 | 1983 | 1977 | 1985 | 1969 | 1990 | 1974 | 1979 | 1986 | 1979 |
| Heating Degree Days (F) | 1333. | 1061. | 983. | 693. | 446. | 219. | 98. | 132. | 378. | 694. | 1002. | 1277. | 8316. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 48. | 60. | 12. | 0. | 0. | 0. | 132. |