Twinsburg, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 5 °C (low) to 15.2 °C (high). Annual precipitation averages 1069.8 Millimeters. Twinsburg is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.1 °C | 1.1 °C | 75.69 mm |
| February | -6.7 °C | 2.6 °C | 59.69 mm |
| March | -2.6 °C | 7.5 °C | 82.8 mm |
| April | 3.6 °C | 14.8 °C | 97.79 mm |
| May | 9.6 °C | 21.3 °C | 104.9 mm |
| June | 14.6 °C | 25.9 °C | 107.19 mm |
| July | 16.8 °C | 28.1 °C | 106.17 mm |
| August | 15.8 °C | 27.3 °C | 94.23 mm |
| September | 11.9 °C | 23.6 °C | 96.77 mm |
| October | 6.2 °C | 16.7 °C | 87.38 mm |
| November | 1.1 °C | 9.7 °C | 78.74 mm |
| December | -3.6 °C | 3.7 °C | 78.49 mm |
| Annual | 5 °C | 15.2 °C | 1069.84 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 |