Newark, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.6 °C (low) to 25 °C (high). Annual precipitation averages 939.3 Millimeters. Newark is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.2 °C | 13.8 °C | 55.37 mm |
| February | 3.2 °C | 15.8 °C | 63.75 mm |
| March | 7.5 °C | 20.3 °C | 82.3 mm |
| April | 11.7 °C | 24.6 °C | 79.5 mm |
| May | 17.2 °C | 28.6 °C | 113.28 mm |
| June | 21.7 °C | 33.3 °C | 103.12 mm |
| July | 23.6 °C | 35.4 °C | 56.64 mm |
| August | 23.4 °C | 35.9 °C | 62.99 mm |
| September | 19.2 °C | 31.9 °C | 83.06 mm |
| October | 12.8 °C | 26 °C | 105.16 mm |
| November | 7.2 °C | 19.6 °C | 68.33 mm |
| December | 2.3 °C | 14.6 °C | 65.79 mm |
| Annual | 12.6 °C | 25 °C | 939.29 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |