Mineral Wells, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.7 °C (low) to 25.1 °C (high). Annual precipitation averages 843 Millimeters. Mineral Wells is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.3 °C | 14.2 °C | 45.21 mm |
| February | 2.3 °C | 16.1 °C | 58.67 mm |
| March | 6.6 °C | 20.5 °C | 75.44 mm |
| April | 10.9 °C | 25 °C | 69.85 mm |
| May | 16.4 °C | 28.8 °C | 108.2 mm |
| June | 20.9 °C | 33 °C | 92.46 mm |
| July | 22.8 °C | 35.5 °C | 51.31 mm |
| August | 22.5 °C | 35.7 °C | 64.77 mm |
| September | 18.3 °C | 31.7 °C | 73.91 mm |
| October | 12 °C | 26.1 °C | 93.22 mm |
| November | 5.9 °C | 19.6 °C | 59.69 mm |
| December | 1.2 °C | 14.7 °C | 50.29 mm |
| Annual | 11.7 °C | 25.1 °C | 843.02 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |