Sunset, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.9 °C (low) to 23.9 °C (high). Annual precipitation averages 905 Millimeters. Sunset 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.6 °C | 12.7 °C | 42.16 mm |
| February | 1.4 °C | 14.8 °C | 58.42 mm |
| March | 5.8 °C | 19.4 °C | 79.25 mm |
| April | 10.1 °C | 23.8 °C | 78.23 mm |
| May | 15.7 °C | 27.5 °C | 122.43 mm |
| June | 20.3 °C | 31.9 °C | 105.16 mm |
| July | 22.2 °C | 34.6 °C | 57.15 mm |
| August | 21.8 °C | 34.9 °C | 62.99 mm |
| September | 17.7 °C | 30.7 °C | 84.07 mm |
| October | 11.2 °C | 24.8 °C | 98.04 mm |
| November | 5.3 °C | 18.5 °C | 59.44 mm |
| December | 0.3 °C | 13.4 °C | 57.66 mm |
| Annual | 10.9 °C | 23.9 °C | 905 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 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 |