| | Siler City, NC | Oak Brook, IL | United States |
| Rainfall | 45.9 | 38.7 | 38.1 |
| Snowfall | 2.2 | 31.1 | 27.8 |
| Precipitation Days | 108.3 | 120.5 | 106.2 |
| Sunny | 216 | 188 | 205 |
| Avg. July High | 88.9 | 83.9 | 85.8 |
| Avg. Jan. Low | 28.1 | 15.3 | 21.7 |
| Comfort Index (higher=better) | 7.5 | 6.9 | 7 |
| UV Index | 4.6 | 3.4 | 4.3 |
| Elevation ft. | 607 | 663 | 2443 |