| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.0 | 54.5 | 59.7 | 68.2 | 76.9 | 86.9 | 89.9 | 87.1 | 81.4 | 71.7 | 59.0 | 49.2 | 69.4 |
| Highest Mean Max. Temperature (F) | 58.9 | 59.8 | 69.4 | 76.4 | 84.7 | 93.0 | 93.9 | 90.6 | 85.6 | 77.7 | 65.5 | 57.8 | 71.8 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1984 | 1974 | 1971 | 1969 | 1979 | 1988 | 1967 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 39.2 | 48.9 | 51.0 | 61.2 | 72.9 | 79.6 | 86.7 | 81.9 | 77.9 | 63.9 | 53.0 | 40.2 | 67.4 |
| Year Lowest Occurred | 1968 | 1973 | 1973 | 1973 | 1979 | 1965 | 1986 | 1968 | 1986 | 1971 | 1972 | 1967 | 1975 |
| Mean Temperature (F) | 32.8 | 37.8 | 42.8 | 49.8 | 57.8 | 66.9 | 73.2 | 70.8 | 64.2 | 53.4 | 42.3 | 34.0 | 52.2 |
| Highest Mean Temperature (F) | 39.1 | 41.4 | 48.2 | 57.1 | 63.7 | 72.5 | 75.1 | 73.6 | 69.2 | 58.8 | 46.1 | 41.4 | 54.9 |
| Year Highest Occurred | 1986 | 1986 | 1989 | 1989 | 1984 | 1974 | 1971 | 1969 | 1983 | 1988 | 1965 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 24.4 | 32.3 | 36.0 | 43.5 | 53.9 | 61.4 | 69.5 | 65.3 | 61.1 | 48.3 | 37.5 | 24.2 | 49.2 |
| Year Lowest Occurred | 1968 | 1964 | 1969 | 1970 | 1971 | 1965 | 1968 | 1968 | 1968 | 1969 | 1979 | 1967 | 1968 |
| Mean Min. Temperature (F) | 17.5 | 21.0 | 25.8 | 31.3 | 38.8 | 46.7 | 56.4 | 54.6 | 47.0 | 35.0 | 25.7 | 18.7 | 34.9 |
| Highest Mean Min. Temperature (F) | 27.8 | 26.7 | 32.1 | 37.7 | 43.1 | 52.1 | 60.6 | 58.5 | 53.0 | 41.7 | 31.6 | 27.8 | 38.0 |
| Year Highest Occurred | 1980 | 1986 | 1978 | 1989 | 1981 | 1981 | 1990 | 1982 | 1983 | 1972 | 1978 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 9.5 | 13.7 | 15.0 | 24.3 | 33.8 | 40.7 | 50.7 | 48.7 | 39.6 | 29.6 | 20.5 | 8.2 | 30.4 |
| Year Lowest Occurred | 1968 | 1964 | 1969 | 1970 | 1968 | 1962 | 1968 | 1968 | 1968 | 1967 | 1976 | 1967 | 1968 |
| Mean Precipitation (in.) | 0.63 | 0.62 | 0.96 | 0.42 | 0.54 | 0.32 | 2.14 | 2.52 | 1.55 | 1.16 | 0.81 | 0.95 | 12.62 |
| Highest Precipitation (in.) | 1.71 | 2.33 | 2.41 | 2.05 | 2.90 | 1.44 | 5.61 | 5.65 | 5.25 | 4.83 | 3.90 | 4.16 | 18.70 |
| Year Highest Occurred | 1987 | 1980 | 1978 | 1988 | 1969 | 1988 | 1989 | 1969 | 1984 | 1972 | 1978 | 1967 | 1969 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.28 | 1.07 | 0.03 | 0.00 | 0.00 | 0.00 | 6.58 |
| Year Lowest Occurred | 1986 | 1984 | 1988 | 1989 | 1989 | 1989 | 1979 | 1981 | 1973 | 1982 | 1980 | 1981 | 1963 |
| Heating Degree Days (F) | 998. | 762. | 688. | 456. | 233. | 56. | 0. | 0. | 75. | 364. | 681. | 961. | 5274. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 113. | 254. | 185. | 51. | 0. | 0. | 0. | 613. |