Barberton, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 5.6 °C (low) to 15.6 °C (high). Annual precipitation averages 1006.4 Millimeters. Barberton is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.5 °C | 1.3 °C | 70.36 mm |
| February | -5.9 °C | 2.8 °C | 54.36 mm |
| March | -1.8 °C | 8.1 °C | 77.22 mm |
| April | 4.5 °C | 15.6 °C | 91.95 mm |
| May | 10.2 °C | 21.6 °C | 99.82 mm |
| June | 15.2 °C | 26.2 °C | 105.41 mm |
| July | 17.4 °C | 28.6 °C | 102.11 mm |
| August | 16.4 °C | 27.7 °C | 91.44 mm |
| September | 12.6 °C | 24.1 °C | 86.87 mm |
| October | 6.6 °C | 17.1 °C | 81.53 mm |
| November | 1.3 °C | 10.1 °C | 73.91 mm |
| December | -3.2 °C | 3.9 °C | 71.37 mm |
| Annual | 5.6 °C | 15.6 °C | 1006.35 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Dfb - Humid Continental Mild Summer, Wet All Year |