Briaroaks, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.7 °C (low) to 25 °C (high). Annual precipitation averages 961.9 Millimeters. Briaroaks is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.6 °C | 14 °C | 61.98 mm |
| February | 3.6 °C | 16.2 °C | 67.56 mm |
| March | 7.7 °C | 20.2 °C | 89.66 mm |
| April | 11.9 °C | 24.4 °C | 83.06 mm |
| May | 17.2 °C | 28.6 °C | 117.09 mm |
| June | 21.6 °C | 33 °C | 94.74 mm |
| July | 23.4 °C | 35.4 °C | 48.51 mm |
| August | 23.2 °C | 35.5 °C | 63.5 mm |
| September | 19.2 °C | 31.7 °C | 80.01 mm |
| October | 13.1 °C | 26.1 °C | 110.24 mm |
| November | 7.3 °C | 19.6 °C | 75.18 mm |
| December | 2.7 °C | 14.8 °C | 70.36 mm |
| Annual | 12.7 °C | 25 °C | 961.89 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°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 |