| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.9 | 50.2 | 58.3 | 68.8 | 77.0 | 88.1 | 93.1 | 90.7 | 82.7 | 71.4 | 57.9 | 48.1 | 69.4 |
| Highest Mean Max. Temperature (F) | 59.4 | 60.2 | 67.5 | 77.1 | 83.4 | 94.2 | 98.8 | 99.6 | 89.8 | 77.7 | 64.0 | 57.4 | 72.5 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1974 | 1990 | 1980 | 1980 | 1979 | 1975 | 1965 | 1980 | 1977 |
| Lowest Mean Max. Temperature (F) | 34.1 | 39.3 | 45.9 | 59.2 | 71.9 | 81.1 | 89.6 | 86.3 | 77.4 | 59.7 | 45.1 | 35.2 | 67.5 |
| Year Lowest Occurred | 1979 | 1979 | 1969 | 1973 | 1983 | 1969 | 1972 | 1966 | 1965 | 1969 | 1972 | 1983 | 1961 |
| Mean Temperature (F) | 30.6 | 34.4 | 41.5 | 51.4 | 60.2 | 70.3 | 75.8 | 73.7 | 65.2 | 53.6 | 41.4 | 32.3 | 52.5 |
| Highest Mean Temperature (F) | 42.4 | 41.4 | 48.9 | 57.8 | 64.9 | 74.8 | 79.2 | 79.0 | 69.1 | 61.2 | 47.1 | 40.8 | 54.7 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1963 | 1990 | 1978 | 1980 | 1963 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 19.3 | 26.3 | 31.1 | 43.3 | 55.7 | 65.3 | 73.2 | 70.8 | 61.8 | 46.3 | 31.9 | 22.3 | 50.1 |
| Year Lowest Occurred | 1979 | 1979 | 1965 | 1973 | 1979 | 1969 | 1961 | 1974 | 1965 | 1969 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 14.3 | 18.6 | 24.6 | 33.9 | 43.4 | 52.5 | 58.4 | 56.6 | 47.6 | 35.7 | 24.9 | 16.4 | 35.6 |
| Highest Mean Min. Temperature (F) | 25.4 | 24.3 | 30.7 | 39.5 | 46.8 | 56.2 | 62.0 | 59.8 | 53.2 | 44.9 | 31.3 | 24.2 | 38.3 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1969 | 1977 | 1978 | 1964 | 1969 | 1963 | 1963 | 1981 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 1.8 | 12.0 | 16.2 | 27.4 | 37.8 | 48.8 | 55.9 | 52.7 | 40.7 | 29.7 | 13.9 | 5.5 | 32.2 |
| Year Lowest Occurred | 1980 | 1978 | 1965 | 1973 | 1979 | 1983 | 1973 | 1974 | 1979 | 1977 | 1979 | 1978 | 1979 |
| Mean Precipitation (in.) | 0.37 | 0.41 | 0.83 | 0.99 | 1.75 | 1.46 | 1.78 | 1.73 | 1.14 | 0.68 | 0.63 | 0.44 | 12.21 |
| Highest Precipitation (in.) | 1.09 | 1.60 | 2.30 | 3.25 | 3.61 | 7.20 | 4.13 | 5.18 | 3.92 | 2.10 | 3.07 | 1.60 | 17.15 |
| Year Highest Occurred | 1966 | 1964 | 1973 | 1969 | 1979 | 1965 | 1990 | 1966 | 1973 | 1969 | 1972 | 1979 | 1979 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.04 | 0.00 | 0.29 | 0.23 | 0.76 | 0.34 | 0.03 | 0.00 | 0.00 | 0.00 | 5.52 |
| Year Lowest Occurred | 1981 | 1970 | 1978 | 1963 | 1976 | 1964 | 1987 | 1985 | 1983 | 1977 | 1965 | 1970 | 1977 |
| Heating Degree Days (F) | 1066. | 857. | 729. | 412. | 171. | 22. | 0. | 0. | 59. | 360. | 708. | 1014. | 5398. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 23. | 181. | 335. | 273. | 65. | 7. | 0. | 0. | 884. |