| | Bay City, TX | Brazoria, TX | United States |
| Rainfall | 46.9 | 52.3 | 38.1 |
| Snowfall | 0.1 | 0.1 | 27.8 |
| Precipitation Days | 87 | 90.1 | 106.2 |
| Sunny | 203 | 204 | 205 |
| Avg. July High | 90.5 | 90.8 | 85.8 |
| Avg. Jan. Low | 43.8 | 44.9 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 6.8 | 7 |
| UV Index | 6.2 | 5.8 | 4.3 |
| Elevation ft. | 49 | 30 | 2443 |