Bylas, Arizona has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 47.4 °F (low) to 82.8 °F (high). Annual precipitation averages 9.5 Inches. Bylas is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.4 °F | 62.9 °F | 1.0 in. |
| February | 32.8 °F | 67.4 °F | 1.0 in. |
| March | 37.6 °F | 74.4 °F | 0.58 in. |
| April | 43.4 °F | 83.0 °F | 0.31 in. |
| May | 52.0 °F | 91.9 °F | 0.19 in. |
| June | 61.8 °F | 100.7 °F | 0.17 in. |
| July | 69.9 °F | 100.9 °F | 1.46 in. |
| August | 68.5 °F | 99.0 °F | 1.56 in. |
| September | 61.3 °F | 94.4 °F | 0.94 in. |
| October | 47.3 °F | 85.3 °F | 0.71 in. |
| November | 36.0 °F | 72.3 °F | 0.53 in. |
| December | 28.6 °F | 61.8 °F | 1.0 in. |
| Annual | 47.4 °F | 82.8 °F | 9.45 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |