Oatman, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 14.1 °C (low) to 26 °C (high). Annual precipitation averages 186.4 Millimeters. 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 | 4.8 °C | 14.9 °C | 24.38 mm |
| February | 5.8 °C | 16.4 °C | 34.29 mm |
| March | 8.9 °C | 20.4 °C | 24.38 mm |
| April | 11.8 °C | 24.6 °C | 7.62 mm |
| May | 16.5 °C | 29.8 °C | 5.33 mm |
| June | 22 °C | 35.5 °C | 1.27 mm |
| July | 25.6 °C | 38 °C | 15.24 mm |
| August | 24.9 °C | 37.3 °C | 16 mm |
| September | 21.2 °C | 33.9 °C | 13.97 mm |
| October | 14.9 °C | 27.2 °C | 12.7 mm |
| November | 8.6 °C | 19.8 °C | 9.91 mm |
| December | 4.4 °C | 14.3 °C | 21.34 mm |
| Annual | 14.1 °C | 26 °C | 186.43 mm |
| 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 : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |