| | Gilliam, LA | McAllen, TX | United States |
| Rainfall | 51.1 | 21.8 | 38.1 |
| Snowfall | 0.6 | 0 | 27.8 |
| Precipitation Days | 91.1 | 58 | 106.2 |
| Sunny | 211 | 223 | 205 |
| Avg. July High | 92.9 | 96.6 | 85.8 |
| Avg. Jan. Low | 34.1 | 49.4 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.2 | 7 |
| UV Index | 5.4 | 6.1 | 4.3 |
| Elevation ft. | 194 | 121 | 2443 |