| | Irmo, SC | Richlands, NC | United States |
| Rainfall | 44.8 | 55.3 | 38.1 |
| Snowfall | 0.9 | 1.6 | 27.8 |
| Precipitation Days | 103.3 | 118.7 | 106.2 |
| Sunny | 222 | 216 | 205 |
| Avg. July High | 93 | 89.3 | 85.8 |
| Avg. Jan. Low | 30.3 | 30.3 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.5 | 7 |
| UV Index | 4.9 | 4.5 | 4.3 |
| Elevation ft. | 358 | 59 | 2443 |