Coeburn, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.1 °C (low) to 18.5 °C (high). Annual precipitation averages 1266.7 Millimeters. Coeburn is located in USDA Plant Hardiness Zone 7a. 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 | -4.7 °C | 6.2 °C | 100.58 mm |
| February | -3.2 °C | 8.3 °C | 106.17 mm |
| March | 0.4 °C | 13.2 °C | 117.86 mm |
| April | 5.4 °C | 19.5 °C | 109.22 mm |
| May | 10.3 °C | 23.6 °C | 116.84 mm |
| June | 14.9 °C | 27.2 °C | 121.67 mm |
| July | 16.9 °C | 28.7 °C | 137.16 mm |
| August | 16.3 °C | 28.2 °C | 106.43 mm |
| September | 12.8 °C | 25.7 °C | 86.36 mm |
| October | 6.2 °C | 20 °C | 73.15 mm |
| November | 0.4 °C | 13.3 °C | 80.52 mm |
| December | -2.4 °C | 8.3 °C | 110.74 mm |
| Annual | 6.1 °C | 18.5 °C | 1266.7 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 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |