Marblehead, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7 °C (low) to 14 °C (high). Annual precipitation averages 910.1 Millimeters. Marblehead 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.3 °C | 0.3 °C | 57.91 mm |
| February | -5.6 °C | 1.4 °C | 51.56 mm |
| March | -1.6 °C | 5.8 °C | 66.04 mm |
| April | 4.6 °C | 12.7 °C | 92.71 mm |
| May | 11.2 °C | 18.9 °C | 88.14 mm |
| June | 17.3 °C | 24.3 °C | 95.25 mm |
| July | 19.8 °C | 26.8 °C | 84.84 mm |
| August | 19.4 °C | 25.9 °C | 86.11 mm |
| September | 15.6 °C | 22.6 °C | 77.47 mm |
| October | 8.9 °C | 16.5 °C | 82.3 mm |
| November | 2.9 °C | 9.1 °C | 67.56 mm |
| December | -2.6 °C | 3.3 °C | 60.2 mm |
| Annual | 7 °C | 14 °C | 910.09 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |