Lone Star, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.2 °C (low) to 24.6 °C (high). Annual precipitation averages 1225.3 Millimeters. Lone Star 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 | 1.7 °C | 13.6 °C | 91.69 mm |
| February | 3.3 °C | 15.8 °C | 104.39 mm |
| March | 7.3 °C | 20.2 °C | 117.86 mm |
| April | 11.4 °C | 24.4 °C | 110.74 mm |
| May | 16.7 °C | 28.4 °C | 121.92 mm |
| June | 21 °C | 32.3 °C | 105.92 mm |
| July | 22.6 °C | 34.3 °C | 73.66 mm |
| August | 22.2 °C | 34.8 °C | 67.82 mm |
| September | 18.6 °C | 31.5 °C | 98.55 mm |
| October | 12.1 °C | 25.8 °C | 115.06 mm |
| November | 6.7 °C | 19.3 °C | 101.85 mm |
| December | 2.7 °C | 14.7 °C | 115.82 mm |
| Annual | 12.2 °C | 24.6 °C | 1225.28 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |