Newcomerstown, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.9 °C (low) to 16.8 °C (high). Annual precipitation averages 1051 Millimeters. Newcomerstown 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.8 °C | 2.7 °C | 78.23 mm |
| February | -5.9 °C | 4.5 °C | 57.4 mm |
| March | -1.8 °C | 10 °C | 83.31 mm |
| April | 3.8 °C | 17.4 °C | 95.5 mm |
| May | 9.7 °C | 22.8 °C | 106.68 mm |
| June | 14.5 °C | 27.1 °C | 123.44 mm |
| July | 16.7 °C | 29 °C | 103.63 mm |
| August | 15.8 °C | 28.4 °C | 95.5 mm |
| September | 11.5 °C | 24.9 °C | 83.31 mm |
| October | 5.2 °C | 18.3 °C | 78.23 mm |
| November | -0.1 °C | 11.3 °C | 73.41 mm |
| December | -3.8 °C | 5.3 °C | 72.39 mm |
| Annual | 4.9 °C | 16.8 °C | 1051.03 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |