Oatman, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 57.4 °F (low) to 78.8 °F (high). Annual precipitation averages 7.3 Inches. Oatman is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 11 - Jan. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.7 °F | 58.8 °F | 0.96 in. |
| February | 42.5 °F | 61.5 °F | 1.35 in. |
| March | 48.0 °F | 68.8 °F | 0.96 in. |
| April | 53.2 °F | 76.2 °F | 0.3 in. |
| May | 61.7 °F | 85.7 °F | 0.21 in. |
| June | 71.6 °F | 95.9 °F | 0.05 in. |
| July | 78.0 °F | 100.4 °F | 0.6 in. |
| August | 76.8 °F | 99.2 °F | 0.63 in. |
| September | 70.1 °F | 93.1 °F | 0.55 in. |
| October | 58.9 °F | 81.0 °F | 0.5 in. |
| November | 47.4 °F | 67.7 °F | 0.39 in. |
| December | 40.0 °F | 57.7 °F | 0.84 in. |
| Annual | 57.4 °F | 78.8 °F | 7.34 in. |
| Average First Frost Date | Jan. 11 - Jan. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| 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 | Moderate Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |