Lukachukai, Arizona has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 38.5 °F (low) to 64.4 °F (high). Annual precipitation averages 9.5 Inches. Lukachukai 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 | 19.9 °F | 41.6 °F | 0.91 in. |
| February | 23.2 °F | 46.2 °F | 0.86 in. |
| March | 29.0 °F | 54.4 °F | 0.77 in. |
| April | 35.7 °F | 62.5 °F | 0.38 in. |
| May | 43.5 °F | 72.3 °F | 0.4 in. |
| June | 53.1 °F | 84.2 °F | 0.22 in. |
| July | 59.3 °F | 88.1 °F | 1.35 in. |
| August | 58.5 °F | 85.0 °F | 1.33 in. |
| September | 51.5 °F | 78.1 °F | 1.2 in. |
| October | 39.0 °F | 65.8 °F | 0.82 in. |
| November | 28.8 °F | 52.4 °F | 0.42 in. |
| December | 20.2 °F | 42.4 °F | 0.88 in. |
| Annual | 38.5 °F | 64.4 °F | 9.54 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |