Ganado, Arizona has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.6 °F (low) to 66 °F (high). Annual precipitation averages 9.8 Inches. Ganado is located in USDA Plant Hardiness Zone 6b. 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 | 17.5 °F | 44.0 °F | 0.74 in. |
| February | 21.6 °F | 48.3 °F | 0.79 in. |
| March | 26.4 °F | 56.6 °F | 0.69 in. |
| April | 32.4 °F | 63.9 °F | 0.43 in. |
| May | 40.2 °F | 73.4 °F | 0.6 in. |
| June | 49.1 °F | 85.2 °F | 0.21 in. |
| July | 56.4 °F | 88.9 °F | 1.1 in. |
| August | 56.0 °F | 85.3 °F | 1.55 in. |
| September | 48.1 °F | 79.5 °F | 1.05 in. |
| October | 36.1 °F | 68.0 °F | 0.93 in. |
| November | 25.3 °F | 54.5 °F | 0.72 in. |
| December | 17.6 °F | 44.0 °F | 0.96 in. |
| Annual | 35.6 °F | 66 °F | 9.77 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |