Sanford, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.2 °C (low) to 22.2 °C (high). Annual precipitation averages 1223.3 Millimeters. Sanford 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °C | 11.3 °C | 94.74 mm |
| February | -0.2 °C | 13.3 °C | 79.25 mm |
| March | 3.3 °C | 17.6 °C | 99.57 mm |
| April | 8.4 °C | 23.1 °C | 91.19 mm |
| May | 13.6 °C | 26.8 °C | 92.46 mm |
| June | 18.1 °C | 30.5 °C | 108.46 mm |
| July | 20.5 °C | 32.2 °C | 139.95 mm |
| August | 19.7 °C | 31.2 °C | 117.09 mm |
| September | 16.3 °C | 28.1 °C | 129.54 mm |
| October | 9.2 °C | 22.8 °C | 93.47 mm |
| November | 3.1 °C | 17.2 °C | 85.6 mm |
| December | 0.1 °C | 12.8 °C | 91.95 mm |
| Annual | 9.2 °C | 22.2 °C | 1223.27 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |