Sells, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 12.5 °C (low) to 29.3 °C (high). Annual precipitation averages 337.6 Millimeters. Sells is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.6 °C | 19.4 °C | 24.64 mm |
| February | 4.4 °C | 21 °C | 21.08 mm |
| March | 7.3 °C | 24.3 °C | 21.34 mm |
| April | 10 °C | 28.3 °C | 6.1 mm |
| May | 14.6 °C | 33.2 °C | 7.37 mm |
| June | 19.9 °C | 38.6 °C | 7.11 mm |
| July | 23.5 °C | 38.8 °C | 72.14 mm |
| August | 23 °C | 37.7 °C | 74.17 mm |
| September | 19.9 °C | 35.9 °C | 35.81 mm |
| October | 13.7 °C | 31.2 °C | 17.53 mm |
| November | 7.3 °C | 24.6 °C | 14.22 mm |
| December | 3.3 °C | 19.1 °C | 36.07 mm |
| Annual | 12.5 °C | 29.3 °C | 337.58 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |