Harmony, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.2 °C (low) to 20.8 °C (high). Annual precipitation averages 1193 Millimeters. Harmony is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.3 °C | 9.7 °C | 96.52 mm |
| February | -1.2 °C | 11.8 °C | 82.55 mm |
| March | 2.5 °C | 16.1 °C | 101.35 mm |
| April | 7.4 °C | 21.3 °C | 112.01 mm |
| May | 12.7 °C | 25.3 °C | 96.52 mm |
| June | 17.2 °C | 29.2 °C | 108.97 mm |
| July | 19.4 °C | 30.8 °C | 111.25 mm |
| August | 18.6 °C | 30 °C | 116.84 mm |
| September | 15 °C | 26.8 °C | 102.87 mm |
| October | 8.1 °C | 21.8 °C | 81.79 mm |
| November | 2.1 °C | 16 °C | 81.79 mm |
| December | -1.1 °C | 11.2 °C | 100.58 mm |
| Annual | 8.2 °C | 20.8 °C | 1193.04 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |