Bentonville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.4 °C (low) to 18.1 °C (high). Annual precipitation averages 1220.2 Millimeters. Bentonville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.2 °C | 4.4 °C | 84.58 mm |
| February | -3.8 °C | 6.8 °C | 84.07 mm |
| March | 0.2 °C | 11.9 °C | 114.05 mm |
| April | 5.7 °C | 18.6 °C | 118.36 mm |
| May | 11.3 °C | 23.4 °C | 127.51 mm |
| June | 15.9 °C | 27.9 °C | 120.65 mm |
| July | 17.9 °C | 29.8 °C | 131.83 mm |
| August | 16.9 °C | 29.2 °C | 89.92 mm |
| September | 13 °C | 26.2 °C | 87.63 mm |
| October | 6.4 °C | 19.6 °C | 82.3 mm |
| November | 1.1 °C | 12.3 °C | 81.79 mm |
| December | -2.6 °C | 6.7 °C | 97.54 mm |
| Annual | 6.4 °C | 18.1 °C | 1220.23 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |