| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 18.2 | 23.6 | 36.2 | 53.1 | 67.5 | 77.1 | 83.8 | 82.1 | 70.8 | 58.4 | 38.3 | 22.9 | 52.7 |
| Highest Mean Max. Temperature (F) | 33.5 | 35.5 | 46.7 | 65.0 | 76.5 | 88.7 | 89.4 | 88.9 | 78.1 | 72.1 | 47.9 | 35.7 | 57.3 |
| Year Highest Occurred | 1990 | 1987 | 1981 | 1987 | 1977 | 1988 | 1988 | 1983 | 1979 | 1963 | 1963 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 5.2 | 8.5 | 26.5 | 38.3 | 60.2 | 69.2 | 77.0 | 75.8 | 58.0 | 49.1 | 24.0 | 6.5 | 49.0 |
| Year Lowest Occurred | 1982 | 1979 | 1969 | 1975 | 1979 | 1969 | 1962 | 1977 | 1965 | 1969 | 1985 | 1983 | 1972 |
| Mean Temperature (F) | 8.0 | 13.2 | 26.2 | 41.8 | 54.9 | 64.5 | 70.5 | 68.4 | 57.3 | 45.5 | 27.9 | 13.0 | 40.9 |
| Highest Mean Temperature (F) | 24.1 | 27.2 | 34.8 | 50.4 | 64.0 | 74.0 | 74.5 | 74.3 | 63.2 | 55.6 | 35.0 | 24.1 | 46.2 |
| Year Highest Occurred | 1990 | 1987 | 1986 | 1987 | 1977 | 1988 | 1988 | 1983 | 1978 | 1963 | 1981 | 1987 | 1987 |
| Lowest Mean Temperature (F) | -5.7 | -1.6 | 14.9 | 32.6 | 49.0 | 57.4 | 65.7 | 62.8 | 46.9 | 39.7 | 15.2 | -2.0 | 37.8 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1975 | 1979 | 1969 | 1962 | 1977 | 1965 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | -2.2 | 2.8 | 16.1 | 30.4 | 42.3 | 51.9 | 57.1 | 54.6 | 43.7 | 32.5 | 17.4 | 3.1 | 29.1 |
| Highest Mean Min. Temperature (F) | 14.7 | 18.9 | 26.7 | 35.8 | 51.4 | 59.2 | 61.6 | 59.7 | 49.3 | 39.0 | 24.6 | 16.8 | 35.0 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1977 | 1988 | 1975 | 1983 | 1968 | 1963 | 1981 | 1987 | 1987 |
| Lowest Mean Min. Temperature (F) | -16.5 | -11.6 | 2.9 | 25.9 | 36.3 | 45.6 | 51.7 | 49.4 | 35.8 | 25.5 | 6.3 | -10.5 | 25.9 |
| Year Lowest Occurred | 1982 | 1979 | 1965 | 1979 | 1966 | 1969 | 1967 | 1964 | 1965 | 1976 | 1985 | 1983 | 1964 |
| Mean Precipitation (in.) | 0.46 | 0.40 | 1.06 | 1.99 | 2.51 | 3.29 | 2.33 | 2.38 | 1.82 | 1.20 | 0.55 | 0.43 | 18.42 |
| Highest Precipitation (in.) | 1.70 | 1.80 | 3.05 | 7.90 | 4.82 | 7.22 | 9.65 | 5.78 | 7.02 | 5.58 | 2.44 | 1.21 | 29.23 |
| Year Highest Occurred | 1969 | 1969 | 1966 | 1986 | 1974 | 1975 | 1962 | 1966 | 1973 | 1982 | 1977 | 1969 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.11 | 0.00 | 0.40 | 0.93 | 0.28 | 0.19 | 0.21 | 0.06 | 0.05 | 0.01 | 11.21 |
| Year Lowest Occurred | 1961 | 1968 | 1971 | 1988 | 1976 | 1973 | 1976 | 1970 | 1974 | 1968 | 1990 | 1986 | 1976 |
| Heating Degree Days (F) | 1767. | 1450. | 1203. | 696. | 333. | 106. | 17. | 50. | 254. | 605. | 1113. | 1612. | 9206. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 20. | 91. | 188. | 155. | 23. | 0. | 0. | 0. | 477. |