Ash Flat, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.7 °F (low) to 70 °F (high). Annual precipitation averages 50.3 Inches. Ash Flat is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.8 °F | 46.7 °F | 3.5 in. |
| February | 28.9 °F | 51.6 °F | 3.57 in. |
| March | 36.9 °F | 60.7 °F | 4.72 in. |
| April | 45.9 °F | 71.0 °F | 5.43 in. |
| May | 55.5 °F | 78.4 °F | 5.33 in. |
| June | 63.9 °F | 86.6 °F | 3.59 in. |
| July | 67.8 °F | 90.6 °F | 3.88 in. |
| August | 66.2 °F | 90.3 °F | 3.85 in. |
| September | 58.2 °F | 82.9 °F | 3.83 in. |
| October | 46.3 °F | 72.3 °F | 3.9 in. |
| November | 36.4 °F | 59.5 °F | 4.63 in. |
| December | 28.9 °F | 49.2 °F | 4.06 in. |
| Annual | 46.7 °F | 70 °F | 50.29 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |