Sun City, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 60 °F (low) to 86.7 °F (high). Annual precipitation averages 8.9 Inches. Sun City is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 42.5 °F | 67.2 °F | 1.03 in. |
| February | 45.2 °F | 70.8 °F | 1.26 in. |
| March | 50.5 °F | 77.5 °F | 1.21 in. |
| April | 55.8 °F | 84.9 °F | 0.27 in. |
| May | 65.2 °F | 93.9 °F | 0.26 in. |
| June | 73.9 °F | 103.5 °F | 0.04 in. |
| July | 80.5 °F | 106.1 °F | 0.79 in. |
| August | 80.0 °F | 104.8 °F | 0.99 in. |
| September | 73.7 °F | 100.1 °F | 0.73 in. |
| October | 61.0 °F | 89.0 °F | 0.64 in. |
| November | 49.5 °F | 76.1 °F | 0.63 in. |
| December | 41.9 °F | 66.1 °F | 1.09 in. |
| Annual | 60 °F | 86.7 °F | 8.94 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |