Gnadenhutten, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 16.8 °C (high). Annual precipitation averages 1071.1 Millimeters. Gnadenhutten 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 | -6.9 °C | 2.6 °C | 78.99 mm |
| February | -6.2 °C | 4.4 °C | 59.69 mm |
| March | -2.1 °C | 9.9 °C | 86.11 mm |
| April | 3.6 °C | 17.2 °C | 97.03 mm |
| May | 9.4 °C | 22.8 °C | 106.17 mm |
| June | 14.2 °C | 27.1 °C | 125.98 mm |
| July | 16.4 °C | 29.1 °C | 102.62 mm |
| August | 15.4 °C | 28.4 °C | 96.27 mm |
| September | 11.3 °C | 24.9 °C | 85.34 mm |
| October | 4.9 °C | 18.2 °C | 80.26 mm |
| November | -0.1 °C | 11.3 °C | 74.93 mm |
| December | -3.8 °C | 5.2 °C | 77.72 mm |
| Annual | 4.7 °C | 16.8 °C | 1071.11 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |