Bentonville, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.2 °C (low) to 20.3 °C (high). Annual precipitation averages 1226.8 Millimeters. Bentonville is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.7 °C | 7.8 °C | 72.14 mm |
| February | -1.9 °C | 10.3 °C | 61.72 mm |
| March | 2.7 °C | 15.2 °C | 102.87 mm |
| April | 7.4 °C | 20.3 °C | 124.71 mm |
| May | 12.8 °C | 24.4 °C | 155.96 mm |
| June | 17.8 °C | 29 °C | 111.51 mm |
| July | 19.9 °C | 31.6 °C | 108.97 mm |
| August | 19.1 °C | 31.4 °C | 85.85 mm |
| September | 14.7 °C | 27.4 °C | 117.09 mm |
| October | 8.3 °C | 21.6 °C | 101.85 mm |
| November | 2.7 °C | 14.9 °C | 101.6 mm |
| December | -1.8 °C | 9.3 °C | 82.55 mm |
| Annual | 8.2 °C | 20.3 °C | 1226.82 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |