Forest City, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 21.8 °C (high). Annual precipitation averages 1308.6 Millimeters. Forest City 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 | -1.2 °C | 10.7 °C | 109.22 mm |
| February | 0.1 °C | 13 °C | 94.23 mm |
| March | 3.6 °C | 17.2 °C | 117.86 mm |
| April | 8.2 °C | 22.3 °C | 111.51 mm |
| May | 13.2 °C | 26.2 °C | 105.16 mm |
| June | 17.5 °C | 30 °C | 113.03 mm |
| July | 19.6 °C | 31.8 °C | 123.19 mm |
| August | 19.1 °C | 30.9 °C | 114.81 mm |
| September | 15.8 °C | 27.9 °C | 106.68 mm |
| October | 9.1 °C | 22.7 °C | 94.49 mm |
| November | 3.3 °C | 16.7 °C | 99.06 mm |
| December | 0.3 °C | 12.1 °C | 119.38 mm |
| Annual | 9.1 °C | 21.8 °C | 1308.62 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 |