Wintersburg, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 14 °C (low) to 30.3 °C (high). Annual precipitation averages 194.1 Millimeters. Wintersburg is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.3 °C | 19.6 °C | 22.1 mm |
| February | 5.9 °C | 21.7 °C | 25.15 mm |
| March | 8.8 °C | 25.4 °C | 23.37 mm |
| April | 11.8 °C | 29.3 °C | 6.1 mm |
| May | 16.5 °C | 34.2 °C | 3.3 mm |
| June | 21.3 °C | 39.4 °C | 0.51 mm |
| July | 25.9 °C | 41.1 °C | 17.27 mm |
| August | 25.9 °C | 40.3 °C | 27.94 mm |
| September | 21.8 °C | 37.6 °C | 18.03 mm |
| October | 14.5 °C | 31.4 °C | 11.18 mm |
| November | 7.8 °C | 24.6 °C | 14.73 mm |
| December | 3.8 °C | 18.8 °C | 24.38 mm |
| Annual | 14 °C | 30.3 °C | 194.06 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |