Delco, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.9 °F (low) to 74.2 °F (high). Annual precipitation averages 56.5 Inches. Delco 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.6 °F | 56.7 °F | 3.88 in. |
| February | 35.2 °F | 59.5 °F | 3.48 in. |
| March | 41.3 °F | 66.6 °F | 4.04 in. |
| April | 50.1 °F | 74.4 °F | 3.48 in. |
| May | 58.8 °F | 81.1 °F | 4.08 in. |
| June | 67.3 °F | 87.1 °F | 5.46 in. |
| July | 71.1 °F | 90.1 °F | 5.93 in. |
| August | 69.7 °F | 88.6 °F | 6.67 in. |
| September | 64.5 °F | 83.9 °F | 7.9 in. |
| October | 52.6 °F | 75.6 °F | 4.34 in. |
| November | 42.1 °F | 66.8 °F | 3.51 in. |
| December | 36.6 °F | 59.6 °F | 3.71 in. |
| Annual | 51.9 °F | 74.2 °F | 56.48 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |