Powderly, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11 °C (low) to 23.7 °C (high). Annual precipitation averages 1214.6 Millimeters. Powderly is located in USDA Plant Hardiness Zone 8a. 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 | -0.4 °C | 11.9 °C | 78.49 mm |
| February | 1.7 °C | 14.4 °C | 86.11 mm |
| March | 5.9 °C | 18.8 °C | 114.55 mm |
| April | 10.1 °C | 23.3 °C | 109.98 mm |
| May | 15.7 °C | 27.3 °C | 141.73 mm |
| June | 20.3 °C | 31.8 °C | 105.16 mm |
| July | 22.1 °C | 34.3 °C | 79.76 mm |
| August | 21.4 °C | 34.7 °C | 71.63 mm |
| September | 17.6 °C | 31.1 °C | 98.3 mm |
| October | 11.1 °C | 25 °C | 117.6 mm |
| November | 5.4 °C | 18.3 °C | 99.57 mm |
| December | 1 °C | 13.1 °C | 111.76 mm |
| Annual | 11 °C | 23.7 °C | 1214.64 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 |