Canyon Day, Arizona has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 4.7 °C (low) to 22.9 °C (high). Annual precipitation averages 456.2 Millimeters. Canyon Day is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.4 °C | 12.3 °C | 43.94 mm |
| February | -2.6 °C | 14.2 °C | 43.94 mm |
| March | -0.1 °C | 17.8 °C | 39.88 mm |
| April | 2.5 °C | 21.6 °C | 13.21 mm |
| May | 6.3 °C | 26.5 °C | 12.45 mm |
| June | 11.1 °C | 32.3 °C | 9.65 mm |
| July | 15.4 °C | 33.4 °C | 54.61 mm |
| August | 15 °C | 32.2 °C | 88.39 mm |
| September | 11.2 °C | 29.8 °C | 46.74 mm |
| October | 5.3 °C | 24.4 °C | 34.04 mm |
| November | -0.3 °C | 17.8 °C | 29.72 mm |
| December | -3.7 °C | 12.3 °C | 39.62 mm |
| Annual | 4.7 °C | 22.9 °C | 456.19 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |