Newark, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.4 °F (low) to 61.9 °F (high). Annual precipitation averages 42 Inches. 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 | 19.9 °F | 36.4 °F | 3.2 in. |
| February | 21.6 °F | 39.6 °F | 2.49 in. |
| March | 29.5 °F | 49.6 °F | 3.54 in. |
| April | 39.8 °F | 62.9 °F | 3.97 in. |
| May | 50.3 °F | 72.7 °F | 4.11 in. |
| June | 59.2 °F | 80.9 °F | 4.42 in. |
| July | 62.8 °F | 84.0 °F | 4.32 in. |
| August | 60.9 °F | 82.7 °F | 3.72 in. |
| September | 53.4 °F | 76.8 °F | 3.12 in. |
| October | 41.8 °F | 64.7 °F | 2.96 in. |
| November | 32.3 °F | 52.0 °F | 3.0 in. |
| December | 25.4 °F | 40.9 °F | 3.11 in. |
| Annual | 41.4 °F | 61.9 °F | 41.96 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |