Stanley, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 21.7 °C (high). Annual precipitation averages 1123.4 Millimeters. Stanley is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.9 °C | 10.7 °C | 92.71 mm |
| February | 0.6 °C | 12.9 °C | 78.49 mm |
| March | 4.2 °C | 17.1 °C | 100.58 mm |
| April | 9 °C | 22.2 °C | 92.2 mm |
| May | 14 °C | 26 °C | 93.22 mm |
| June | 18.5 °C | 29.9 °C | 106.17 mm |
| July | 20.6 °C | 31.7 °C | 97.79 mm |
| August | 19.8 °C | 30.8 °C | 110.74 mm |
| September | 16.4 °C | 27.9 °C | 100.84 mm |
| October | 9.6 °C | 22.6 °C | 81.28 mm |
| November | 3.6 °C | 16.8 °C | 77.98 mm |
| December | 0.6 °C | 12.2 °C | 91.44 mm |
| Annual | 9.7 °C | 21.7 °C | 1123.44 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |