Aztec, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 59.6 °F (low) to 88.4 °F (high). Annual precipitation averages 4 Inches. Aztec 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 Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 41.4 °F | 68.7 °F | 0.55 in. |
| February | 45.3 °F | 72.8 °F | 0.57 in. |
| March | 50.4 °F | 79.5 °F | 0.35 in. |
| April | 56.0 °F | 86.7 °F | 0.06 in. |
| May | 63.9 °F | 95.0 °F | 0.02 in. |
| June | 72.3 °F | 104.5 °F | 0.02 in. |
| July | 80.5 °F | 107.7 °F | 0.24 in. |
| August | 81.1 °F | 107.1 °F | 0.59 in. |
| September | 74.2 °F | 102.2 °F | 0.36 in. |
| October | 60.9 °F | 91.2 °F | 0.38 in. |
| November | 48.5 °F | 77.9 °F | 0.25 in. |
| December | 40.5 °F | 67.4 °F | 0.65 in. |
| Annual | 59.6 °F | 88.4 °F | 4.04 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 Days |
| 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 |