Richlands, Virginia has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 41.8 °F (low) to 64.9 °F (high). Annual precipitation averages 44.1 Inches. Richlands is located in USDA Plant Hardiness Zone 6b. 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 | 23.1 °F | 43.5 °F | 3.26 in. |
| February | 25.4 °F | 47.0 °F | 3.15 in. |
| March | 31.3 °F | 55.3 °F | 4.03 in. |
| April | 40.0 °F | 65.7 °F | 3.94 in. |
| May | 49.3 °F | 73.7 °F | 4.19 in. |
| June | 57.8 °F | 80.1 °F | 4.28 in. |
| July | 61.5 °F | 82.8 °F | 4.92 in. |
| August | 60.3 °F | 82.3 °F | 3.85 in. |
| September | 53.6 °F | 77.5 °F | 3.42 in. |
| October | 41.3 °F | 67.0 °F | 2.66 in. |
| November | 31.6 °F | 56.5 °F | 2.75 in. |
| December | 26.3 °F | 47.0 °F | 3.64 in. |
| Annual | 41.8 °F | 64.9 °F | 44.09 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |