Lost Creek, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.6 °C (low) to 26.4 °C (high). Annual precipitation averages 942.9 Millimeters. Lost Creek is located in USDA Plant Hardiness Zone 9a. 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 | 3.4 °C | 16.6 °C | 65.28 mm |
| February | 5.6 °C | 18.6 °C | 52.07 mm |
| March | 9.3 °C | 22.3 °C | 74.42 mm |
| April | 13.1 °C | 26.2 °C | 67.56 mm |
| May | 17.9 °C | 29.9 °C | 121.16 mm |
| June | 21.5 °C | 33.4 °C | 96.27 mm |
| July | 22.7 °C | 35.2 °C | 64.01 mm |
| August | 22.6 °C | 35.8 °C | 62.74 mm |
| September | 19.6 °C | 32.7 °C | 90.68 mm |
| October | 14.2 °C | 27.8 °C | 104.14 mm |
| November | 8.6 °C | 21.4 °C | 73.91 mm |
| December | 4.2 °C | 17.2 °C | 70.61 mm |
| Annual | 13.6 °C | 26.4 °C | 942.85 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |