Lake Worth, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.2 °C (low) to 25.2 °C (high). Annual precipitation averages 920 Millimeters. Lake Worth is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.8 °C | 14 °C | 56.9 mm |
| February | 3.9 °C | 16.1 °C | 63.5 mm |
| March | 8.2 °C | 20.4 °C | 83.31 mm |
| April | 12.3 °C | 24.7 °C | 76.45 mm |
| May | 17.7 °C | 28.9 °C | 104.39 mm |
| June | 22.1 °C | 33.3 °C | 100.33 mm |
| July | 23.9 °C | 35.8 °C | 53.85 mm |
| August | 23.8 °C | 36 °C | 60.45 mm |
| September | 19.7 °C | 31.9 °C | 79.5 mm |
| October | 13.6 °C | 26.3 °C | 103.89 mm |
| November | 7.8 °C | 19.7 °C | 70.36 mm |
| December | 3.1 °C | 14.9 °C | 67.06 mm |
| Annual | 13.2 °C | 25.2 °C | 919.99 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 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 |