Guerra, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 16.5 °C (low) to 29.7 °C (high). Annual precipitation averages 555 Millimeters. Guerra is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.7 °C | 20.4 °C | 25.65 mm |
| February | 9.9 °C | 23.2 °C | 23.37 mm |
| March | 13.4 °C | 27 °C | 28.96 mm |
| April | 17 °C | 30.8 °C | 37.08 mm |
| May | 20.7 °C | 33.9 °C | 65.79 mm |
| June | 23 °C | 36.4 °C | 60.96 mm |
| July | 23.6 °C | 37 °C | 55.88 mm |
| August | 23.4 °C | 37.4 °C | 39.88 mm |
| September | 21.4 °C | 33.8 °C | 109.73 mm |
| October | 17.3 °C | 30.6 °C | 50.8 mm |
| November | 12.3 °C | 25.2 °C | 31.5 mm |
| December | 8.6 °C | 20.9 °C | 25.4 mm |
| Annual | 16.5 °C | 29.7 °C | 555 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |