Mesquite, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 11.4 °C (low) to 28.6 °C (high). Annual precipitation averages 167.9 Millimeters. 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 | 1 °C | 16 °C | 20.32 mm |
| February | 2.9 °C | 18.6 °C | 32.26 mm |
| March | 6.3 °C | 23.2 °C | 19.3 mm |
| April | 9.9 °C | 27.6 °C | 10.16 mm |
| May | 15 °C | 33.2 °C | 3.81 mm |
| June | 19.5 °C | 39.1 °C | 2.79 mm |
| July | 23.9 °C | 41.9 °C | 13.46 mm |
| August | 23.6 °C | 40.9 °C | 13.21 mm |
| September | 18.2 °C | 37.1 °C | 13.72 mm |
| October | 11.4 °C | 29.6 °C | 13.46 mm |
| November | 4.4 °C | 21.3 °C | 8.64 mm |
| December | 0.5 °C | 15.1 °C | 16.76 mm |
| Annual | 11.4 °C | 28.6 °C | 167.89 mm |
| 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 : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |