Rough Rock, Arizona has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 4 °C (low) to 19.2 °C (high). Annual precipitation averages 242.8 Millimeters. Rough Rock is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.4 °C | 6.4 °C | 19.81 mm |
| February | -4.5 °C | 9.1 °C | 12.95 mm |
| March | -1.7 °C | 14 °C | 16.26 mm |
| April | 3.2 °C | 17.9 °C | 10.41 mm |
| May | 6.9 °C | 23.6 °C | 13.97 mm |
| June | 11.9 °C | 30.3 °C | 16.51 mm |
| July | 15.8 °C | 32.1 °C | 40.64 mm |
| August | 15.1 °C | 30.6 °C | 37.34 mm |
| September | 10.8 °C | 27.1 °C | 24.38 mm |
| October | 4.1 °C | 20.3 °C | 22.35 mm |
| November | -1.8 °C | 12.4 °C | 13.72 mm |
| December | -4.9 °C | 6.2 °C | 14.48 mm |
| Annual | 4 °C | 19.2 °C | 242.82 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |