| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 27.6 | 31.8 | 41.2 | 52.4 | 64.0 | 74.7 | 80.4 | 79.2 | 71.6 | 59.4 | 45.5 | 32.3 | 55.0 |
| Highest Mean Max. Temperature (F) | 38.6 | 39.9 | 48.5 | 59.3 | 72.5 | 83.5 | 85.9 | 83.8 | 75.5 | 68.9 | 51.1 | 40.2 | 58.2 |
| Year Highest Occurred | 1990 | 1984 | 1968 | 1977 | 1977 | 1988 | 1983 | 1988 | 1978 | 1963 | 1975 | 1982 | 1987 |
| Lowest Mean Max. Temperature (F) | 16.8 | 24.6 | 34.4 | 47.0 | 57.0 | 67.2 | 76.4 | 75.2 | 69.0 | 55.3 | 40.2 | 22.9 | 52.3 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1962 | 1967 | 1984 | 1976 | 1976 | 1983 | 1972 |
| Mean Temperature (F) | 20.3 | 24.3 | 33.8 | 44.2 | 54.5 | 64.4 | 70.9 | 70.1 | 62.6 | 51.4 | 38.9 | 25.7 | 46.8 |
| Highest Mean Temperature (F) | 31.7 | 33.2 | 39.4 | 48.6 | 60.5 | 71.1 | 75.9 | 74.4 | 66.2 | 60.3 | 43.6 | 33.7 | 50.4 |
| Year Highest Occurred | 1990 | 1984 | 1977 | 1977 | 1977 | 1988 | 1983 | 1983 | 1978 | 1963 | 1963 | 1982 | 1987 |
| Lowest Mean Temperature (F) | 9.1 | 16.7 | 27.6 | 39.6 | 49.6 | 58.4 | 67.2 | 66.1 | 59.5 | 47.2 | 31.9 | 16.3 | 44.2 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1983 | 1969 | 1978 | 1967 | 1974 | 1988 | 1976 | 1983 | 1972 |
| Mean Min. Temperature (F) | 12.8 | 16.8 | 26.3 | 35.9 | 44.9 | 54.1 | 61.3 | 60.9 | 53.6 | 43.3 | 32.2 | 19.0 | 38.4 |
| Highest Mean Min. Temperature (F) | 24.8 | 26.4 | 32.9 | 39.3 | 49.0 | 60.2 | 65.8 | 65.6 | 57.2 | 51.6 | 36.7 | 27.6 | 42.7 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1987 | 1987 | 1987 | 1983 | 1983 | 1990 | 1963 | 1963 | 1965 | 1987 |
| Lowest Mean Min. Temperature (F) | 1.4 | 8.8 | 20.7 | 32.1 | 41.0 | 49.5 | 57.5 | 56.9 | 49.1 | 38.6 | 23.5 | 8.0 | 36.0 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1975 | 1967 | 1969 | 1978 | 1967 | 1974 | 1988 | 1976 | 1976 | 1972 |
| Mean Precipitation (in.) | 1.51 | 1.29 | 2.30 | 2.81 | 2.75 | 3.19 | 2.93 | 3.58 | 3.92 | 2.57 | 2.33 | 2.01 | 31.19 |
| Highest Precipitation (in.) | 2.86 | 3.46 | 6.26 | 4.51 | 5.92 | 8.68 | 6.13 | 6.65 | 13.20 | 4.99 | 6.54 | 5.06 | 39.67 |
| Year Highest Occurred | 1982 | 1971 | 1976 | 1984 | 1983 | 1969 | 1977 | 1990 | 1986 | 1985 | 1985 | 1971 | 1965 |
| Lowest Precipitation (in.) | 0.05 | 0.02 | 0.20 | 0.72 | 0.53 | 0.35 | 1.16 | 0.15 | 0.13 | 0.32 | 0.38 | 0.39 | 23.28 |
| Year Lowest Occurred | 1981 | 1987 | 1978 | 1989 | 1981 | 1964 | 1967 | 1969 | 1979 | 1964 | 1976 | 1989 | 1963 |
| Heating Degree Days (F) | 1386. | 1140. | 967. | 624. | 333. | 95. | 11. | 13. | 95. | 422. | 783. | 1218. | 7087. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 77. | 193. | 171. | 23. | 0. | 0. | 0. | 472. |