Guerra, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 61.7 °F (low) to 85.5 °F (high). Annual precipitation averages 21.9 Inches. 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 | 45.8 °F | 68.8 °F | 1.01 in. |
| February | 49.8 °F | 73.7 °F | 0.92 in. |
| March | 56.2 °F | 80.6 °F | 1.14 in. |
| April | 62.6 °F | 87.4 °F | 1.46 in. |
| May | 69.2 °F | 93.0 °F | 2.59 in. |
| June | 73.4 °F | 97.6 °F | 2.4 in. |
| July | 74.4 °F | 98.6 °F | 2.2 in. |
| August | 74.2 °F | 99.3 °F | 1.57 in. |
| September | 70.5 °F | 92.9 °F | 4.32 in. |
| October | 63.2 °F | 87.0 °F | 2.0 in. |
| November | 54.1 °F | 77.3 °F | 1.24 in. |
| December | 47.5 °F | 69.7 °F | 1.0 in. |
| Annual | 61.7 °F | 85.5 °F | 21.85 in. |
| 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 : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |