Bryson, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.7 °C (low) to 24.9 °C (high). Annual precipitation averages 826 Millimeters. Bryson 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.2 °C | 13.6 °C | 38.61 mm |
| February | 0.9 °C | 15.6 °C | 51.82 mm |
| March | 5.2 °C | 20.3 °C | 69.6 mm |
| April | 9.7 °C | 24.8 °C | 66.8 mm |
| May | 15.4 °C | 28.8 °C | 112.27 mm |
| June | 20.4 °C | 33.1 °C | 97.03 mm |
| July | 22.5 °C | 35.7 °C | 54.1 mm |
| August | 22.1 °C | 35.8 °C | 62.23 mm |
| September | 17.7 °C | 31.6 °C | 81.53 mm |
| October | 11.2 °C | 25.8 °C | 90.68 mm |
| November | 4.7 °C | 19.2 °C | 53.85 mm |
| December | 0 °C | 14.2 °C | 47.5 mm |
| Annual | 10.7 °C | 24.9 °C | 826.02 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |