Ash Fork, Arizona has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 3.8 °C (low) to 22.7 °C (high). Annual precipitation averages 331.2 Millimeters. Ash Fork is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 11.7 °C | 29.46 mm |
| February | -3.6 °C | 13.4 °C | 31.75 mm |
| March | -0.9 °C | 17.1 °C | 27.69 mm |
| April | 1.7 °C | 21.2 °C | 11.68 mm |
| May | 5.9 °C | 26.7 °C | 12.19 mm |
| June | 10.2 °C | 32.6 °C | 7.37 mm |
| July | 14.8 °C | 34.1 °C | 51.05 mm |
| August | 14.3 °C | 32.8 °C | 55.88 mm |
| September | 10.4 °C | 29.9 °C | 34.54 mm |
| October | 4.1 °C | 24.2 °C | 22.86 mm |
| November | -1.5 °C | 17.2 °C | 20.32 mm |
| December | -5 °C | 11.5 °C | 26.42 mm |
| Annual | 3.8 °C | 22.7 °C | 331.21 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Csb - Warm-Summer Mediterranean Climate |