Willow Canyon, Arizona has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 6.5 °C (low) to 18.8 °C (high). Annual precipitation averages 783.6 Millimeters. Willow Canyon is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °C | 11.1 °C | 73.41 mm |
| February | -0.5 °C | 10.3 °C | 81.28 mm |
| March | 0.3 °C | 14.3 °C | 57.66 mm |
| April | 3.9 °C | 17.4 °C | 24.38 mm |
| May | 8.9 °C | 21.9 °C | 16 mm |
| June | 14.1 °C | 28.3 °C | 16.26 mm |
| July | 13.9 °C | 27.7 °C | 111.76 mm |
| August | 13.2 °C | 26.2 °C | 127.51 mm |
| September | 13.4 °C | 24.2 °C | 90.68 mm |
| October | 8.8 °C | 20.1 °C | 44.45 mm |
| November | 3.5 °C | 14.1 °C | 64.01 mm |
| December | -0.5 °C | 9.7 °C | 76.2 mm |
| Annual | 6.5 °C | 18.8 °C | 783.6 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |