| | Alamo Heights, TX | Pettus, TX | United States |
| Rainfall | 32.7 | 29.9 | 38.1 |
| Snowfall | 0.3 | 0.2 | 27.8 |
| Precipitation Days | 84.5 | 68.8 | 106.2 |
| Sunny | 221 | 222 | 205 |
| Avg. July High | 94.3 | 95.3 | 85.8 |
| Avg. Jan. Low | 40.5 | 43.9 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.8 | 7 |
| UV Index | 6.3 | 5.9 | 4.3 |
| Elevation ft. | 801 | 299 | 2443 |