Newark, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.2 °C (low) to 16.6 °C (high). Annual precipitation averages 1065.8 Millimeters. Newark 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 | -6.7 °C | 2.4 °C | 81.28 mm |
| February | -5.8 °C | 4.2 °C | 63.25 mm |
| March | -1.4 °C | 9.8 °C | 89.92 mm |
| April | 4.3 °C | 17.2 °C | 100.84 mm |
| May | 10.2 °C | 22.6 °C | 104.39 mm |
| June | 15.1 °C | 27.2 °C | 112.27 mm |
| July | 17.1 °C | 28.9 °C | 109.73 mm |
| August | 16.1 °C | 28.2 °C | 94.49 mm |
| September | 11.9 °C | 24.9 °C | 79.25 mm |
| October | 5.4 °C | 18.2 °C | 75.18 mm |
| November | 0.2 °C | 11.1 °C | 76.2 mm |
| December | -3.7 °C | 4.9 °C | 78.99 mm |
| Annual | 5.2 °C | 16.6 °C | 1065.79 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |