| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F | |
| Average First Frost Date: | Nov. 11 - Nov. 20 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 63g - Carolinian Barrier Islands and Coastal Marshes | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 28461 - Southport, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 35 | 42 | 49 | 57 | 66 | 70 | 69 | 63 | 51 | 43 | 36 | 51 |
| Avg Max Temp (°F) | 57 | 58 | 65 | 72 | 79 | 85 | 88 | 88 | 84 | 76 | 68 | 59 | 73 |
| Avg Precip (In.) | 5.19 | 4.11 | 4.44 | 3.07 | 4.16 | 5 | 6.73 | 7.56 | 8.69 | 3.79 | 3.42 | 4.14 | 60.3 |