Saltville, Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 42.1 °F (low) to 66.1 °F (high). Annual precipitation averages 48.1 Inches. Saltville 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 | 23.6 °F | 44.5 °F | 3.89 in. |
| February | 25.8 °F | 48.6 °F | 3.85 in. |
| March | 32.0 °F | 57.1 °F | 4.42 in. |
| April | 40.2 °F | 67.1 °F | 4.16 in. |
| May | 49.5 °F | 74.9 °F | 4.81 in. |
| June | 58.1 °F | 81.3 °F | 4.77 in. |
| July | 61.6 °F | 84.2 °F | 4.47 in. |
| August | 60.5 °F | 83.5 °F | 4.07 in. |
| September | 54.1 °F | 78.9 °F | 3.55 in. |
| October | 41.4 °F | 68.5 °F | 3.11 in. |
| November | 31.4 °F | 57.4 °F | 2.75 in. |
| December | 26.8 °F | 47.7 °F | 4.23 in. |
| Annual | 42.1 °F | 66.1 °F | 48.08 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 | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |