Aztec, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 15.3 °C (low) to 31.3 °C (high). Annual precipitation averages 102.6 Millimeters. 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 | 5.2 °C | 20.4 °C | 13.97 mm |
| February | 7.4 °C | 22.7 °C | 14.48 mm |
| March | 10.2 °C | 26.4 °C | 8.89 mm |
| April | 13.3 °C | 30.4 °C | 1.52 mm |
| May | 17.7 °C | 35 °C | 0.51 mm |
| June | 22.4 °C | 40.3 °C | 0.51 mm |
| July | 26.9 °C | 42.1 °C | 6.1 mm |
| August | 27.3 °C | 41.7 °C | 14.99 mm |
| September | 23.4 °C | 39 °C | 9.14 mm |
| October | 16.1 °C | 32.9 °C | 9.65 mm |
| November | 9.2 °C | 25.5 °C | 6.35 mm |
| December | 4.7 °C | 19.7 °C | 16.51 mm |
| Annual | 15.3 °C | 31.3 °C | 102.62 mm |
| 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 : -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 |