Rough Rock, Arizona has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 39.3 °F (low) to 66.5 °F (high). Annual precipitation averages 9.6 Inches. 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 | 20.5 °F | 43.5 °F | 0.78 in. |
| February | 23.9 °F | 48.4 °F | 0.51 in. |
| March | 28.9 °F | 57.2 °F | 0.64 in. |
| April | 37.7 °F | 64.2 °F | 0.41 in. |
| May | 44.5 °F | 74.4 °F | 0.55 in. |
| June | 53.5 °F | 86.5 °F | 0.65 in. |
| July | 60.5 °F | 89.8 °F | 1.6 in. |
| August | 59.2 °F | 87.0 °F | 1.47 in. |
| September | 51.5 °F | 80.7 °F | 0.96 in. |
| October | 39.4 °F | 68.6 °F | 0.88 in. |
| November | 28.7 °F | 54.4 °F | 0.54 in. |
| December | 23.2 °F | 43.1 °F | 0.57 in. |
| Annual | 39.3 °F | 66.5 °F | 9.56 in. |
| 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 : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |