Deport, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.3 °C (low) to 23.9 °C (high). Annual precipitation averages 1204.2 Millimeters. Deport 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 | 0.3 °C | 12.5 °C | 83.06 mm |
| February | 2.3 °C | 14.8 °C | 98.04 mm |
| March | 6.3 °C | 19.2 °C | 109.98 mm |
| April | 10.3 °C | 23.4 °C | 109.98 mm |
| May | 15.9 °C | 27.5 °C | 127.51 mm |
| June | 20.4 °C | 31.9 °C | 93.98 mm |
| July | 22.2 °C | 34.2 °C | 77.22 mm |
| August | 21.5 °C | 34.6 °C | 68.58 mm |
| September | 17.8 °C | 31.1 °C | 103.38 mm |
| October | 11.3 °C | 25.2 °C | 116.33 mm |
| November | 5.7 °C | 18.7 °C | 101.85 mm |
| December | 1.4 °C | 13.7 °C | 114.3 mm |
| Annual | 11.3 °C | 23.9 °C | 1204.21 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 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 |