| CLIMATE | Rockwall | Collinsville | United States |
| Rainfall (in.) | 38.4 | 39.8 | 36.5 |
| Snowfall (in.) | 1.7 | 15.5 | 25 |
| Precipitation Days | 69 | 101 | 100 |
| Sunny Days | 236 | 199 | 205 |
| Avg. July High | 95 | 89 | 86.5 |
| Avg. Jan. Low | 31.2 | 24.5 | 20.5 |
| Comfort Index (higher=better) | 26 | 41 | 44 |
| UV Index | 5.4 | 4.1 | 4.3 |
| Elevation ft. | 508 | 516 | 1,443 |