Douglassville, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.7 °C (low) to 24.1 °C (high). Annual precipitation averages 1298.4 Millimeters. Douglassville 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 | 1.1 °C | 13 °C | 98.3 mm |
| February | 2.7 °C | 15.1 °C | 116.08 mm |
| March | 6.9 °C | 19.7 °C | 119.63 mm |
| April | 11 °C | 24.1 °C | 117.35 mm |
| May | 16.3 °C | 28.1 °C | 127 mm |
| June | 20.6 °C | 31.9 °C | 106.93 mm |
| July | 22.3 °C | 34.2 °C | 87.38 mm |
| August | 21.8 °C | 34.4 °C | 76.45 mm |
| September | 18.1 °C | 31 °C | 101.6 mm |
| October | 11.4 °C | 25.2 °C | 121.41 mm |
| November | 6 °C | 18.8 °C | 103.12 mm |
| December | 2.2 °C | 14.1 °C | 123.19 mm |
| Annual | 11.7 °C | 24.1 °C | 1298.44 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 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |