| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Average Max. Temperature (F) | 38.7 | 44.4 | 52.7 | 61.1 | 70.4 | 81.4 | 89.0 | 87.4 | 77.4 | 64.1 | 47.5 | 39.3 | 63.0 |
| Average Min. Temperature (F) | 20.0 | 24.3 | 30.9 | 37.4 | 45.6 | 54.8 | 61.8 | 60.1 | 50.9 | 39.4 | 27.9 | 20.9 | 39.6 |
| Average Total Precipitation (in.) | 1.40 | 1.71 | 2.36 | 2.43 | 2.23 | 0.99 | 0.78 | 1.03 | 1.40 | 1.92 | 2.01 | 1.53 | 19.79 |