| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.4 | 34.9 | 41.4 | 52.3 | 62.9 | 72.1 | 81.2 | 79.8 | 70.1 | 58.7 | 41.2 | 31.1 | 54.6 |
| Highest Mean Max. Temperature (F) | 38.9 | 43.0 | 50.0 | 63.4 | 69.5 | 81.5 | 85.6 | 84.9 | 77.6 | 67.6 | 47.6 | 38.7 | 57.4 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1969 | 1988 | 1988 | 1981 | 1990 | 1988 | 1965 | 1962 | 1988 |
| Lowest Mean Max. Temperature (F) | 19.5 | 24.9 | 33.5 | 42.5 | 56.9 | 65.4 | 76.8 | 72.6 | 59.2 | 50.1 | 34.8 | 22.1 | 52.1 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1964 | 1986 | 1968 | 1965 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 18.0 | 22.6 | 29.2 | 39.0 | 48.2 | 56.5 | 64.0 | 62.1 | 53.2 | 43.0 | 30.0 | 19.6 | 40.5 |
| Highest Mean Temperature (F) | 26.1 | 32.7 | 37.6 | 45.6 | 52.2 | 63.0 | 67.1 | 65.5 | 59.0 | 49.4 | 35.2 | 27.6 | 42.6 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1987 | 1988 | 1961 | 1971 | 1990 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 8.0 | 10.5 | 19.7 | 31.4 | 44.4 | 53.1 | 60.3 | 57.9 | 46.1 | 36.8 | 23.7 | 10.2 | 37.7 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1975 | 1975 | 1984 | 1986 | 1968 | 1965 | 1984 | 1979 | 1990 | 1964 |
| Mean Min. Temperature (F) | 6.7 | 10.2 | 17.0 | 25.6 | 33.4 | 41.0 | 46.7 | 44.5 | 36.3 | 27.2 | 18.7 | 8.0 | 26.3 |
| Highest Mean Min. Temperature (F) | 15.7 | 22.3 | 25.2 | 29.7 | 37.5 | 45.1 | 50.3 | 49.3 | 42.0 | 32.7 | 23.2 | 18.2 | 28.9 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1965 | 1987 | 1977 | 1975 | 1983 | 1963 | 1963 | 1970 | 1975 | 1980 |
| Lowest Mean Min. Temperature (F) | -3.5 | -4.0 | 5.8 | 17.6 | 29.5 | 37.9 | 40.4 | 41.1 | 31.7 | 21.8 | 11.9 | -1.8 | 22.3 |
| Year Lowest Occurred | 1979 | 1964 | 1964 | 1982 | 1982 | 1984 | 1985 | 1964 | 1971 | 1970 | 1979 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.45 | 1.00 | 1.13 | 1.31 | 2.16 | 1.89 | 1.27 | 1.18 | 1.49 | 1.21 | 1.30 | 1.38 | 16.77 |
| Highest Precipitation (in.) | 4.37 | 2.55 | 3.05 | 3.42 | 6.14 | 5.83 | 3.13 | 4.21 | 4.76 | 3.21 | 3.43 | 3.99 | 28.25 |
| Year Highest Occurred | 1969 | 1986 | 1976 | 1986 | 1981 | 1967 | 1982 | 1968 | 1961 | 1975 | 1983 | 1981 | 1983 |
| Lowest Precipitation (in.) | 0.14 | 0.15 | 0.04 | 0.20 | 0.66 | 0.07 | 0.00 | 0.01 | 0.00 | 0.02 | 0.20 | 0.15 | 9.80 |
| Year Lowest Occurred | 1961 | 1990 | 1965 | 1968 | 1969 | 1961 | 1963 | 1985 | 1987 | 1965 | 1976 | 1989 | 1990 |
| Heating Degree Days (F) | 1457. | 1187. | 1110. | 780. | 521. | 263. | 73. | 124. | 364. | 682. | 1050. | 1407. | 9018. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 42. | 34. | 10. | 0. | 0. | 0. | 94. |