Selma, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57.9 °F (low) to 80.2 °F (high). Annual precipitation averages 33.4 Inches. Selma is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.0 °F | 63.0 °F | 2.11 in. |
| February | 43.8 °F | 67.3 °F | 1.98 in. |
| March | 50.7 °F | 73.5 °F | 2.61 in. |
| April | 57.1 °F | 80.0 °F | 2.47 in. |
| May | 65.8 °F | 86.4 °F | 3.64 in. |
| June | 71.8 °F | 92.2 °F | 3.31 in. |
| July | 73.6 °F | 94.9 °F | 2.09 in. |
| August | 73.6 °F | 96.2 °F | 2.19 in. |
| September | 68.6 °F | 90.4 °F | 3.72 in. |
| October | 59.1 °F | 82.4 °F | 4.23 in. |
| November | 49.0 °F | 71.8 °F | 2.72 in. |
| December | 41.7 °F | 64.4 °F | 2.29 in. |
| Annual | 57.9 °F | 80.2 °F | 33.36 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |