Bellmead, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.4 °C (low) to 25.5 °C (high). Annual precipitation averages 949.7 Millimeters. Bellmead is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.6 °C | 14.8 °C | 70.1 mm |
| February | 4.7 °C | 17.1 °C | 68.07 mm |
| March | 8.8 °C | 20.8 °C | 90.68 mm |
| April | 12.7 °C | 25.1 °C | 81.03 mm |
| May | 17.9 °C | 28.9 °C | 116.59 mm |
| June | 21.9 °C | 33.2 °C | 83.06 mm |
| July | 23.6 °C | 35.2 °C | 41.4 mm |
| August | 23.3 °C | 35.6 °C | 61.98 mm |
| September | 19.6 °C | 32.2 °C | 77.98 mm |
| October | 13.7 °C | 26.8 °C | 108.46 mm |
| November | 8.1 °C | 20.4 °C | 75.44 mm |
| December | 3.7 °C | 15.8 °C | 74.93 mm |
| Annual | 13.4 °C | 25.5 °C | 949.72 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |