Bacliff, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 63.8 °F (low) to 77.1 °F (high). Annual precipitation averages 58.8 Inches. Bacliff is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 46.9 °F | 61.7 °F | 4.67 in. |
| February | 50.2 °F | 64.7 °F | 3.13 in. |
| March | 56.7 °F | 70.3 °F | 3.35 in. |
| April | 63.2 °F | 76.2 °F | 4.37 in. |
| May | 70.8 °F | 82.7 °F | 5.07 in. |
| June | 76.3 °F | 88.1 °F | 6.02 in. |
| July | 77.9 °F | 89.9 °F | 4.55 in. |
| August | 77.4 °F | 90.6 °F | 6.43 in. |
| September | 74.2 °F | 86.9 °F | 6.46 in. |
| October | 66.6 °F | 79.8 °F | 5.45 in. |
| November | 56.3 °F | 70.6 °F | 4.84 in. |
| December | 48.7 °F | 63.6 °F | 4.5 in. |
| Annual | 63.8 °F | 77.1 °F | 58.84 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |