| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.8 | 36.2 | 44.1 | 54.9 | 64.3 | 72.1 | 79.7 | 79.5 | 67.9 | 55.3 | 40.3 | 31.6 | 54.6 |
| Highest Mean Max. Temperature (F) | 36.8 | 42.2 | 51.9 | 61.3 | 69.2 | 81.4 | 88.0 | 87.5 | 78.5 | 62.0 | 44.9 | 39.2 | 56.8 |
| Year Highest Occurred | 1983 | 1983 | 1968 | 1987 | 1966 | 1961 | 1985 | 1971 | 1967 | 1988 | 1981 | 1980 | 1967 |
| Lowest Mean Max. Temperature (F) | 13.9 | 22.3 | 36.1 | 48.1 | 58.1 | 63.8 | 73.0 | 72.3 | 57.1 | 49.0 | 26.7 | 19.9 | 52.0 |
| Year Lowest Occurred | 1979 | 1989 | 1989 | 1975 | 1978 | 1981 | 1986 | 1964 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 22.1 | 27.5 | 34.3 | 43.2 | 51.4 | 58.7 | 63.9 | 63.2 | 53.2 | 42.9 | 32.4 | 24.4 | 43.1 |
| Highest Mean Temperature (F) | 30.5 | 35.7 | 40.6 | 47.8 | 55.5 | 64.4 | 69.1 | 68.2 | 60.9 | 47.5 | 36.9 | 32.3 | 45.1 |
| Year Highest Occurred | 1990 | 1961 | 1986 | 1987 | 1987 | 1961 | 1975 | 1971 | 1967 | 1988 | 1962 | 1979 | 1967 |
| Lowest Mean Temperature (F) | 4.1 | 12.7 | 27.9 | 37.6 | 48.0 | 53.7 | 59.6 | 58.6 | 46.2 | 39.5 | 18.7 | 11.2 | 40.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1974 | 1981 | 1983 | 1980 | 1965 | 1969 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 14.3 | 18.9 | 24.5 | 31.4 | 38.5 | 45.2 | 48.0 | 46.8 | 38.4 | 30.5 | 24.5 | 17.2 | 31.5 |
| Highest Mean Min. Temperature (F) | 26.2 | 29.3 | 29.9 | 34.5 | 43.0 | 49.7 | 52.7 | 50.0 | 43.7 | 35.5 | 30.7 | 26.0 | 33.5 |
| Year Highest Occurred | 1981 | 1961 | 1984 | 1969 | 1987 | 1986 | 1975 | 1965 | 1966 | 1967 | 1962 | 1962 | 1981 |
| Lowest Mean Min. Temperature (F) | -5.8 | 3.1 | 15.5 | 27.1 | 35.7 | 41.9 | 45.1 | 43.5 | 34.7 | 25.5 | 10.6 | 2.4 | 28.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1963 | 1985 | 1962 | 1969 | 1974 | 1974 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 1.44 | 1.15 | 1.27 | 1.45 | 2.42 | 2.77 | 1.67 | 1.63 | 1.77 | 1.24 | 1.45 | 1.70 | 19.96 |
| Highest Precipitation (in.) | 3.10 | 2.33 | 3.47 | 3.36 | 5.48 | 6.57 | 4.85 | 4.74 | 5.35 | 2.96 | 3.75 | 4.10 | 26.85 |
| Year Highest Occurred | 1970 | 1986 | 1987 | 1974 | 1980 | 1966 | 1987 | 1965 | 1985 | 1975 | 1989 | 1977 | 1989 |
| Lowest Precipitation (in.) | 0.31 | 0.41 | 0.24 | 0.41 | 0.57 | 0.52 | 0.01 | 0.01 | 0.00 | 0.12 | 0.31 | 0.51 | 12.81 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1963 | 1977 | 1973 | 1967 | 1990 | 1987 | 1969 | 1985 | 1967 |
| Heating Degree Days (F) | 1330. | 1050. | 952. | 654. | 422. | 206. | 88. | 117. | 365. | 685. | 978. | 1259. | 8106. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 17. | 54. | 61. | 11. | 0. | 0. | 0. | 143. |