Duck, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.3 °C (low) to 19.5 °C (high). Annual precipitation averages 1295.9 Millimeters. Duck is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.1 °C | 10.2 °C | 102.36 mm |
| February | 3.4 °C | 10.8 °C | 79.76 mm |
| March | 6.1 °C | 13.6 °C | 93.47 mm |
| April | 11.1 °C | 18.2 °C | 85.85 mm |
| May | 15.9 °C | 22.3 °C | 95 mm |
| June | 21.1 °C | 26.6 °C | 116.59 mm |
| July | 23.4 °C | 28.7 °C | 130.05 mm |
| August | 23.2 °C | 27.9 °C | 156.21 mm |
| September | 21.3 °C | 25.4 °C | 141.22 mm |
| October | 15.8 °C | 21.3 °C | 107.19 mm |
| November | 9.8 °C | 16.2 °C | 90.93 mm |
| December | 5.7 °C | 12.5 °C | 97.28 mm |
| Annual | 13.3 °C | 19.5 °C | 1295.91 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |