| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.0 | 40.1 | 49.3 | 59.8 | 70.4 | 80.8 | 90.2 | 87.5 | 77.1 | 64.2 | 47.7 | 35.5 | 61.3 |
| Highest Mean Max. Temperature (F) | 40.6 | 50.1 | 57.7 | 69.5 | 78.9 | 88.6 | 93.6 | 92.9 | 86.6 | 72.6 | 53.2 | 41.6 | 64.5 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1969 | 1961 | 1990 | 1970 | 1990 | 1988 | 1965 | 1981 | 1990 |
| Lowest Mean Max. Temperature (F) | 25.4 | 28.1 | 38.5 | 51.1 | 63.1 | 73.8 | 84.7 | 80.2 | 68.4 | 55.7 | 41.2 | 29.2 | 56.3 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1983 | 1964 | 1982 | 1968 | 1965 | 1984 | 1979 | 1972 | 1984 |
| Mean Temperature (F) | 23.5 | 29.7 | 38.4 | 47.2 | 56.6 | 65.6 | 73.6 | 71.2 | 61.4 | 49.5 | 37.2 | 26.4 | 48.4 |
| Highest Mean Temperature (F) | 33.5 | 38.8 | 46.4 | 53.7 | 62.8 | 72.0 | 76.5 | 75.4 | 70.7 | 56.3 | 41.9 | 34.2 | 51.5 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1987 | 1969 | 1961 | 1966 | 1970 | 1990 | 1988 | 1965 | 1977 | 1990 |
| Lowest Mean Temperature (F) | 15.9 | 15.0 | 28.1 | 41.3 | 51.6 | 61.1 | 69.3 | 66.6 | 54.6 | 44.2 | 30.9 | 18.1 | 44.3 |
| Year Lowest Occurred | 1985 | 1985 | 1964 | 1975 | 1983 | 1984 | 1982 | 1968 | 1965 | 1984 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 14.0 | 19.2 | 27.4 | 34.5 | 42.8 | 50.3 | 57.0 | 54.9 | 45.6 | 34.7 | 26.6 | 17.3 | 35.4 |
| Highest Mean Min. Temperature (F) | 26.3 | 30.3 | 35.0 | 41.7 | 48.6 | 55.7 | 60.2 | 58.6 | 54.8 | 40.9 | 31.6 | 26.9 | 38.3 |
| Year Highest Occurred | 1990 | 1986 | 1986 | 1966 | 1987 | 1977 | 1966 | 1963 | 1990 | 1963 | 1970 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | 4.4 | 1.9 | 17.6 | 30.6 | 38.4 | 46.7 | 53.3 | 49.6 | 40.7 | 31.2 | 20.5 | 6.5 | 31.6 |
| Year Lowest Occurred | 1989 | 1985 | 1964 | 1970 | 1975 | 1982 | 1962 | 1985 | 1970 | 1970 | 1979 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.41 | 1.49 | 1.54 | 1.81 | 1.89 | 1.39 | 0.75 | 0.87 | 1.48 | 1.51 | 1.56 | 1.57 | 17.27 |
| Highest Precipitation (in.) | 2.95 | 3.49 | 4.25 | 6.08 | 5.96 | 3.95 | 2.50 | 4.43 | 6.28 | 4.35 | 3.80 | 4.36 | 32.40 |
| Year Highest Occurred | 1970 | 1976 | 1982 | 1986 | 1987 | 1967 | 1977 | 1983 | 1982 | 1981 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.05 | 0.28 | 0.02 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.02 | 7.26 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1977 | 1972 | 1988 | 1988 | 1985 | 1974 | 1988 | 1976 | 1976 | 1988 |
| Heating Degree Days (F) | 1287. | 988. | 825. | 534. | 271. | 88. | 0. | 14. | 166. | 481. | 834. | 1197. | 6685. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 106. | 270. | 206. | 58. | 0. | 0. | 0. | 651. |