Streetsboro, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.6 °C (low) to 14.8 °C (high). Annual precipitation averages 1082.8 Millimeters. Streetsboro is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.5 °C | 0.7 °C | 75.69 mm |
| February | -6.9 °C | 2.2 °C | 61.47 mm |
| March | -2.8 °C | 7.3 °C | 84.84 mm |
| April | 3.3 °C | 14.7 °C | 99.82 mm |
| May | 9.1 °C | 20.9 °C | 106.43 mm |
| June | 14.3 °C | 25.4 °C | 110.24 mm |
| July | 16.4 °C | 27.6 °C | 106.68 mm |
| August | 15.4 °C | 26.8 °C | 96.52 mm |
| September | 11.5 °C | 23.1 °C | 96.01 mm |
| October | 5.6 °C | 16.3 °C | 85.85 mm |
| November | 0.4 °C | 9.3 °C | 78.99 mm |
| December | -4.1 °C | 3.3 °C | 80.26 mm |
| Annual | 4.6 °C | 14.8 °C | 1082.8 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°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 |