Riner, Virginia has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 6.1 °C (low) to 17.9 °C (high). Annual precipitation averages 1045 Millimeters. Riner 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 | -4.4 °C | 6 °C | 78.49 mm |
| February | -3.2 °C | 7.9 °C | 66.29 mm |
| March | 0.2 °C | 12.5 °C | 87.63 mm |
| April | 5.2 °C | 18.3 °C | 92.96 mm |
| May | 10.3 °C | 22.7 °C | 108.2 mm |
| June | 14.7 °C | 26.5 °C | 103.38 mm |
| July | 16.9 °C | 28.2 °C | 99.57 mm |
| August | 16.2 °C | 27.7 °C | 87.38 mm |
| September | 12.6 °C | 24.6 °C | 95.76 mm |
| October | 6.2 °C | 19.1 °C | 74.68 mm |
| November | 0.5 °C | 13.2 °C | 71.12 mm |
| December | -2.5 °C | 7.9 °C | 79.5 mm |
| Annual | 6.1 °C | 17.9 °C | 1044.96 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |