River Road, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.9 °F (low) to 72.4 °F (high). Annual precipitation averages 53 Inches. River Road is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.2 °F | 54.0 °F | 3.68 in. |
| February | 34.9 °F | 57.0 °F | 3.28 in. |
| March | 40.8 °F | 63.7 °F | 4.07 in. |
| April | 50.3 °F | 72.7 °F | 3.48 in. |
| May | 59.2 °F | 79.4 °F | 4.67 in. |
| June | 67.4 °F | 86.2 °F | 5.01 in. |
| July | 71.3 °F | 89.3 °F | 5.48 in. |
| August | 69.8 °F | 87.5 °F | 5.92 in. |
| September | 64.5 °F | 82.6 °F | 6.5 in. |
| October | 52.8 °F | 74.2 °F | 4.08 in. |
| November | 42.1 °F | 64.7 °F | 3.32 in. |
| December | 36.2 °F | 57.0 °F | 3.47 in. |
| Annual | 51.9 °F | 72.4 °F | 52.96 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |