Clarkdale, Arizona has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 7.8 °C (low) to 26 °C (high). Annual precipitation averages 334.8 Millimeters. Clarkdale is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °C | 14.7 °C | 32.51 mm |
| February | 0.3 °C | 16.9 °C | 29.97 mm |
| March | 3.1 °C | 20.6 °C | 27.69 mm |
| April | 5.9 °C | 25.1 °C | 11.18 mm |
| May | 10.1 °C | 29.9 °C | 10.67 mm |
| June | 14.7 °C | 36.1 °C | 4.32 mm |
| July | 19.1 °C | 37.4 °C | 46.74 mm |
| August | 18.6 °C | 36 °C | 60.45 mm |
| September | 14.6 °C | 33 °C | 36.32 mm |
| October | 8.1 °C | 27.4 °C | 25.4 mm |
| November | 1.9 °C | 20.3 °C | 18.54 mm |
| December | -1.6 °C | 14.3 °C | 30.99 mm |
| Annual | 7.8 °C | 26 °C | 334.78 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |