Marana, Arizona has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 55.6 °F (low) to 85 °F (high). Annual precipitation averages 10.4 Inches. Marana is located in USDA Plant Hardiness Zone 9a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.8 °F | 66.7 °F | 0.96 in. |
| February | 41.1 °F | 69.6 °F | 0.94 in. |
| March | 45.9 °F | 76.6 °F | 0.67 in. |
| April | 51.2 °F | 83.4 °F | 0.36 in. |
| May | 59.5 °F | 92.6 °F | 0.26 in. |
| June | 69.0 °F | 102.2 °F | 0.18 in. |
| July | 76.1 °F | 102.3 °F | 1.67 in. |
| August | 75.3 °F | 100.2 °F | 1.93 in. |
| September | 69.5 °F | 96.8 °F | 1.11 in. |
| October | 57.1 °F | 88.0 °F | 0.76 in. |
| November | 45.7 °F | 76.1 °F | 0.53 in. |
| December | 38.0 °F | 65.5 °F | 1.05 in. |
| Annual | 55.6 °F | 85 °F | 10.42 in. |
| Average First Frost Date | Jan. 21 - Jan. 31 |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |