| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 20.4 | 26.8 | 39.1 | 56.3 | 69.2 | 77.3 | 82.0 | 79.0 | 69.2 | 58.1 | 40.0 | 24.4 | 53.5 |
| Highest Mean Max. Temperature (F) | 32.2 | 37.6 | 49.8 | 66.1 | 79.3 | 84.8 | 88.7 | 84.5 | 75.8 | 69.3 | 47.8 | 32.1 | 57.7 |
| Year Highest Occurred | 1990 | 1987 | 1968 | 1987 | 1977 | 1988 | 1988 | 1988 | 1978 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Max. Temperature (F) | 10.3 | 18.4 | 30.4 | 47.2 | 63.2 | 69.6 | 76.5 | 74.6 | 61.5 | 51.7 | 32.1 | 13.3 | 50.3 |
| Year Lowest Occurred | 1977 | 1989 | 1965 | 1975 | 1974 | 1969 | 1972 | 1985 | 1965 | 1987 | 1985 | 1983 | 1972 |
| Mean Temperature (F) | 9.4 | 15.3 | 28.4 | 44.0 | 56.1 | 64.7 | 69.7 | 67.0 | 57.8 | 46.9 | 31.4 | 15.4 | 42.2 |
| Highest Mean Temperature (F) | 23.5 | 28.2 | 38.6 | 51.8 | 65.0 | 71.1 | 75.0 | 72.9 | 62.9 | 56.0 | 37.5 | 24.3 | 47.6 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1988 | 1988 | 1978 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Temperature (F) | -1.7 | 7.1 | 18.7 | 37.7 | 49.9 | 57.4 | 64.6 | 62.8 | 51.8 | 41.4 | 23.3 | 4.6 | 39.0 |
| Year Lowest Occurred | 1982 | 1967 | 1965 | 1975 | 1967 | 1969 | 1971 | 1977 | 1974 | 1976 | 1976 | 1983 | 1972 |
| Mean Min. Temperature (F) | -1.7 | 3.8 | 17.8 | 31.6 | 43.0 | 52.0 | 57.4 | 54.8 | 46.3 | 35.6 | 22.7 | 6.3 | 30.8 |
| Highest Mean Min. Temperature (F) | 14.7 | 19.0 | 29.7 | 37.7 | 50.7 | 57.4 | 63.2 | 61.8 | 51.2 | 42.6 | 28.2 | 17.5 | 37.3 |
| Year Highest Occurred | 1990 | 1984 | 1973 | 1986 | 1977 | 1988 | 1987 | 1983 | 1990 | 1963 | 1983 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -15.4 | -6.9 | 7.0 | 26.6 | 35.0 | 45.2 | 52.5 | 50.2 | 38.6 | 28.2 | 11.4 | -6.5 | 27.6 |
| Year Lowest Occurred | 1982 | 1967 | 1965 | 1972 | 1966 | 1969 | 1971 | 1977 | 1974 | 1976 | 1976 | 1976 | 1972 |
| Mean Precipitation (in.) | 1.00 | 0.82 | 1.82 | 2.69 | 3.29 | 4.18 | 3.96 | 4.44 | 4.29 | 2.62 | 1.68 | 1.29 | 32.08 |
| Highest Precipitation (in.) | 3.16 | 2.32 | 3.80 | 5.32 | 6.93 | 11.03 | 8.22 | 10.19 | 8.30 | 5.63 | 5.59 | 3.66 | 46.91 |
| Year Highest Occurred | 1967 | 1981 | 1976 | 1975 | 1962 | 1968 | 1972 | 1962 | 1985 | 1970 | 1975 | 1965 | 1968 |
| Lowest Precipitation (in.) | 0.03 | 0.01 | 0.14 | 0.16 | 0.83 | 1.57 | 0.88 | 0.71 | 1.47 | 0.62 | 0.12 | 0.24 | 17.41 |
| Year Lowest Occurred | 1981 | 1969 | 1969 | 1987 | 1976 | 1987 | 1967 | 1976 | 1976 | 1976 | 1967 | 1976 | 1976 |
| Heating Degree Days (F) | 1724. | 1392. | 1135. | 630. | 310. | 93. | 26. | 53. | 228. | 561. | 1008. | 1538. | 8698. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 34. | 84. | 171. | 115. | 12. | 0. | 0. | 0. | 416. |