Haysi, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 42.6 °F (low) to 66.2 °F (high). Annual precipitation averages 46.6 Inches. Haysi is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.9 °F | 43.9 °F | 3.44 in. |
| February | 25.1 °F | 47.7 °F | 3.47 in. |
| March | 32.0 °F | 56.7 °F | 4.1 in. |
| April | 41.2 °F | 69.0 °F | 3.95 in. |
| May | 49.7 °F | 75.5 °F | 4.65 in. |
| June | 59.6 °F | 81.6 °F | 4.65 in. |
| July | 62.6 °F | 85.2 °F | 5.45 in. |
| August | 61.8 °F | 83.5 °F | 4.05 in. |
| September | 55.4 °F | 79.2 °F | 3.37 in. |
| October | 42.6 °F | 68.0 °F | 2.81 in. |
| November | 31.9 °F | 56.7 °F | 2.76 in. |
| December | 26.9 °F | 47.6 °F | 3.87 in. |
| Annual | 42.6 °F | 66.2 °F | 46.57 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |