| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 51.7 | 55.4 | 60.5 | 68.8 | 76.9 | 86.7 | 88.1 | 85.4 | 80.3 | 71.8 | 60.5 | 52.8 | 69.9 |
| Highest Mean Max. Temperature (F) | 61.7 | 60.6 | 70.5 | 77.5 | 82.4 | 93.6 | 94.2 | 89.9 | 84.6 | 78.7 | 66.9 | 62.4 | 73.5 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1984 | 1990 | 1966 | 1962 | 1989 | 1965 | 1981 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 44.6 | 49.7 | 53.8 | 60.9 | 73.3 | 82.2 | 83.5 | 81.0 | 76.9 | 63.2 | 54.4 | 44.6 | 68.2 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1983 | 1987 | 1965 | 1986 | 1968 | 1975 | 1984 | 1961 | 1971 | 1983 |
| Mean Temperature (F) | 33.7 | 36.7 | 41.3 | 48.1 | 55.5 | 64.6 | 70.4 | 68.3 | 62.1 | 51.9 | 41.2 | 34.2 | 50.7 |
| Highest Mean Temperature (F) | 39.1 | 40.9 | 46.5 | 53.6 | 59.9 | 70.3 | 73.7 | 71.1 | 65.9 | 55.5 | 46.1 | 40.0 | 53.0 |
| Year Highest Occurred | 1986 | 1989 | 1972 | 1989 | 1984 | 1990 | 1966 | 1969 | 1990 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 27.8 | 29.3 | 36.7 | 42.8 | 52.0 | 61.5 | 67.6 | 64.5 | 58.7 | 47.7 | 37.2 | 30.1 | 49.1 |
| Year Lowest Occurred | 1964 | 1964 | 1962 | 1983 | 1975 | 1983 | 1986 | 1968 | 1988 | 1970 | 1972 | 1987 | 1964 |
| Mean Min. Temperature (F) | 15.7 | 18.0 | 22.1 | 27.2 | 34.0 | 42.4 | 52.7 | 51.2 | 43.9 | 32.0 | 22.0 | 15.6 | 31.4 |
| Highest Mean Min. Temperature (F) | 23.6 | 24.1 | 27.4 | 31.8 | 38.1 | 47.3 | 56.0 | 55.4 | 50.1 | 38.5 | 27.8 | 22.0 | 33.8 |
| Year Highest Occurred | 1969 | 1968 | 1978 | 1981 | 1981 | 1981 | 1981 | 1988 | 1990 | 1972 | 1978 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 6.2 | 8.4 | 18.1 | 22.8 | 29.7 | 37.9 | 49.1 | 47.9 | 37.9 | 25.8 | 17.3 | 10.0 | 29.7 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1970 | 1975 | 1983 | 1987 | 1968 | 1968 | 1982 | 1979 | 1966 | 1973 |
| Mean Precipitation (in.) | 0.94 | 0.95 | 0.96 | 0.44 | 0.43 | 0.65 | 2.51 | 2.76 | 2.21 | 1.70 | 1.10 | 1.52 | 16.17 |
| Highest Precipitation (in.) | 2.81 | 2.86 | 2.95 | 2.41 | 2.17 | 2.58 | 4.42 | 5.86 | 5.47 | 6.68 | 5.59 | 6.06 | 25.71 |
| Year Highest Occurred | 1979 | 1976 | 1981 | 1988 | 1979 | 1972 | 1967 | 1984 | 1975 | 1972 | 1978 | 1965 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.83 | 0.43 | 0.00 | 0.00 | 0.00 | 0.00 | 8.63 |
| Year Lowest Occurred | 1972 | 1984 | 1972 | 1989 | 1968 | 1989 | 1982 | 1962 | 1968 | 1982 | 1980 | 1981 | 1989 |
| Heating Degree Days (F) | 970. | 792. | 735. | 507. | 295. | 75. | 0. | 9. | 109. | 406. | 714. | 955. | 5567. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 63. | 172. | 111. | 22. | 0. | 0. | 0. | 368. |