| | Snellville, GA | Decatur, AL | United States |
| Rainfall | 52.2 | 53.6 | 38.1 |
| Snowfall | 0.9 | 1.5 | 27.8 |
| Precipitation Days | 99.8 | 118 | 106.2 |
| Sunny | 219 | 204 | 205 |
| Avg. July High | 89 | 89.4 | 85.8 |
| Avg. Jan. Low | 30.9 | 30.2 | 21.7 |
| Comfort Index (higher=better) | 7.5 | 7.3 | 7 |
| UV Index | 5 | 5 | 4.3 |
| Elevation ft. | 1060 | 561 | 2443 |