Texas City, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 64.7 °F (low) to 75.7 °F (high). Annual precipitation averages 55.5 Inches. Texas City is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 47.7 °F | 61.0 °F | 4.57 in. |
| February | 51.1 °F | 63.7 °F | 3.13 in. |
| March | 57.4 °F | 69.1 °F | 3.35 in. |
| April | 63.9 °F | 74.6 °F | 4.06 in. |
| May | 71.6 °F | 80.8 °F | 4.27 in. |
| June | 76.9 °F | 86.1 °F | 5.36 in. |
| July | 78.9 °F | 87.9 °F | 4.39 in. |
| August | 78.5 °F | 88.7 °F | 5.97 in. |
| September | 75.2 °F | 85.2 °F | 6.44 in. |
| October | 67.7 °F | 78.4 °F | 5.06 in. |
| November | 57.4 °F | 70.0 °F | 4.55 in. |
| December | 49.6 °F | 63.2 °F | 4.33 in. |
| Annual | 64.7 °F | 75.7 °F | 55.48 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |