Ocean Isle Beach, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.6 °F (low) to 71.8 °F (high). Annual precipitation averages 54.9 Inches. Ocean Isle Beach is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.3 °F | 54.9 °F | 3.98 in. |
| February | 40.0 °F | 57.1 °F | 3.41 in. |
| March | 45.8 °F | 63.4 °F | 3.87 in. |
| April | 55.1 °F | 70.8 °F | 3.43 in. |
| May | 63.6 °F | 77.7 °F | 3.51 in. |
| June | 71.4 °F | 83.8 °F | 4.68 in. |
| July | 74.7 °F | 86.5 °F | 6.46 in. |
| August | 73.7 °F | 86.4 °F | 6.85 in. |
| September | 68.9 °F | 82.6 °F | 7.34 in. |
| October | 58.5 °F | 74.9 °F | 4.47 in. |
| November | 47.5 °F | 65.2 °F | 3.27 in. |
| December | 41.3 °F | 58.4 °F | 3.67 in. |
| Annual | 56.6 °F | 71.8 °F | 54.94 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 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 |