| | Balcones Heights, TX | Castle Hills, TX | United States |
| Rainfall | 32.6 | 33.1 | 38.1 |
| Snowfall | 0.2 | 0.3 | 27.8 |
| Precipitation Days | 84.3 | 84.3 | 106.2 |
| Sunny | 226 | 226 | 205 |
| Avg. July High | 94.4 | 94.4 | 85.8 |
| Avg. Jan. Low | 40.5 | 40.5 | 21.7 |
| Comfort Index (higher=better) | 7 | 7.1 | 7 |
| UV Index | 6.3 | 6.3 | 4.3 |
| Elevation ft. | 833 | 840 | 2443 |