Cape Carteret, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.9 °C (low) to 21.9 °C (high). Annual precipitation averages 1534.9 Millimeters. Cape Carteret 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 | 2.6 °C | 12.7 °C | 108.2 mm |
| February | 3.5 °C | 13.7 °C | 101.35 mm |
| March | 6.5 °C | 17.2 °C | 97.28 mm |
| April | 11.4 °C | 21.2 °C | 94.23 mm |
| May | 16.5 °C | 25.3 °C | 109.98 mm |
| June | 20.9 °C | 28.6 °C | 135.38 mm |
| July | 23.3 °C | 30.1 °C | 181.86 mm |
| August | 22.5 °C | 29.8 °C | 188.98 mm |
| September | 19.9 °C | 27.8 °C | 182.63 mm |
| October | 14.5 °C | 23.7 °C | 126.75 mm |
| November | 8.5 °C | 18.6 °C | 105.41 mm |
| December | 4.9 °C | 14.6 °C | 102.87 mm |
| Annual | 12.9 °C | 21.9 °C | 1534.92 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |