Seaboard, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.6 °F (low) to 70.5 °F (high). Annual precipitation averages 48.9 Inches. Seaboard 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 | 29.6 °F | 50.4 °F | 3.65 in. |
| February | 31.1 °F | 53.6 °F | 2.77 in. |
| March | 37.4 °F | 60.9 °F | 4.2 in. |
| April | 46.6 °F | 71.0 °F | 3.59 in. |
| May | 56.0 °F | 78.2 °F | 3.67 in. |
| June | 64.7 °F | 85.7 °F | 4.67 in. |
| July | 68.9 °F | 89.3 °F | 5.38 in. |
| August | 67.2 °F | 87.4 °F | 5.09 in. |
| September | 61.2 °F | 81.8 °F | 5.36 in. |
| October | 48.8 °F | 71.9 °F | 3.65 in. |
| November | 38.5 °F | 61.9 °F | 3.34 in. |
| December | 32.7 °F | 53.6 °F | 3.53 in. |
| Annual | 48.6 °F | 70.5 °F | 48.9 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |