| | Alvin, TX | Portland, TX | United States |
| Rainfall | 54.2 | 32.8 | 38.1 |
| Snowfall | 0.1 | 0.2 | 27.8 |
| Precipitation Days | 107.2 | 69.3 | 106.2 |
| Sunny | 206 | 225 | 205 |
| Avg. July High | 90.4 | 92.2 | 85.8 |
| Avg. Jan. Low | 43.2 | 47.9 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.7 | 7 |
| UV Index | 5.8 | 5.8 | 4.3 |
| Elevation ft. | 46 | 43 | 2443 |