Mesquite, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 52.5 °F (low) to 83.5 °F (high). Annual precipitation averages 6.6 Inches. Mesquite is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.8 °F | 60.8 °F | 0.8 in. |
| February | 37.3 °F | 65.5 °F | 1.27 in. |
| March | 43.4 °F | 73.8 °F | 0.76 in. |
| April | 49.8 °F | 81.6 °F | 0.4 in. |
| May | 59.0 °F | 91.7 °F | 0.15 in. |
| June | 67.1 °F | 102.3 °F | 0.11 in. |
| July | 75.1 °F | 107.5 °F | 0.53 in. |
| August | 74.4 °F | 105.7 °F | 0.52 in. |
| September | 64.8 °F | 98.7 °F | 0.54 in. |
| October | 52.5 °F | 85.2 °F | 0.53 in. |
| November | 40.0 °F | 70.3 °F | 0.34 in. |
| December | 32.9 °F | 59.1 °F | 0.66 in. |
| Annual | 52.5 °F | 83.5 °F | 6.61 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |