Oak Ridge, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.6 °C (low) to 20.6 °C (high). Annual precipitation averages 1187.5 Millimeters. Oak Ridge is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.2 °C | 9.3 °C | 102.62 mm |
| February | 0.1 °C | 11.4 °C | 77.47 mm |
| March | 3.9 °C | 15.7 °C | 103.38 mm |
| April | 8.9 °C | 21.1 °C | 101.6 mm |
| May | 13.9 °C | 25 °C | 94.49 mm |
| June | 18.4 °C | 29.1 °C | 108.46 mm |
| July | 20.6 °C | 30.9 °C | 108.71 mm |
| August | 19.8 °C | 29.9 °C | 109.47 mm |
| September | 16.3 °C | 26.7 °C | 116.59 mm |
| October | 9.6 °C | 21.4 °C | 85.34 mm |
| November | 3.8 °C | 15.6 °C | 85.6 mm |
| December | 0.5 °C | 10.9 °C | 93.73 mm |
| Annual | 9.6 °C | 20.6 °C | 1187.46 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |