Mentone, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 49.2 °F (low) to 81.4 °F (high). Annual precipitation averages 9.9 Inches. Mentone is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.7 °F | 60.2 °F | 0.49 in. |
| February | 32.6 °F | 66.0 °F | 0.38 in. |
| March | 38.9 °F | 73.9 °F | 0.4 in. |
| April | 47.8 °F | 83.6 °F | 0.4 in. |
| May | 57.8 °F | 91.5 °F | 0.9 in. |
| June | 66.8 °F | 99.1 °F | 1.03 in. |
| July | 70.4 °F | 98.3 °F | 1.53 in. |
| August | 69.0 °F | 98.0 °F | 0.9 in. |
| September | 61.9 °F | 92.3 °F | 2.08 in. |
| October | 49.6 °F | 83.1 °F | 0.89 in. |
| November | 37.0 °F | 69.6 °F | 0.42 in. |
| December | 30.3 °F | 60.6 °F | 0.46 in. |
| Annual | 49.2 °F | 81.4 °F | 9.88 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |