Newton, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21.2 °C (high). Annual precipitation averages 1229.6 Millimeters. Newton is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °C | 9.9 °C | 103.12 mm |
| February | -0.2 °C | 12.3 °C | 86.11 mm |
| March | 3.4 °C | 16.5 °C | 107.95 mm |
| April | 8.3 °C | 21.7 °C | 107.44 mm |
| May | 13.4 °C | 25.4 °C | 104.9 mm |
| June | 17.9 °C | 29.6 °C | 113.03 mm |
| July | 20.1 °C | 31.2 °C | 108.97 mm |
| August | 19.1 °C | 30.5 °C | 113.79 mm |
| September | 15.7 °C | 27.4 °C | 102.62 mm |
| October | 8.9 °C | 22.3 °C | 86.11 mm |
| November | 3.1 °C | 16.3 °C | 89.15 mm |
| December | -0.1 °C | 11.6 °C | 106.43 mm |
| Annual | 9 °C | 21.2 °C | 1229.62 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |