| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 21 - Nov. 30 | |
| Average Last Frost Date: | Mar. 1 - Mar. 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 75j - Sea Islands/Coastal Marsh | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 29940 - Seabrook, SC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 39 | 45 | 52 | 61 | 68 | 71 | 71 | 66 | 55 | 46 | 39 | 54 |
| Avg Max Temp (°F) | 59 | 63 | 70 | 77 | 84 | 89 | 91 | 90 | 85 | 77 | 69 | 62 | 76 |
| Avg Precip (In.) | 4.25 | 3.34 | 4.02 | 3.15 | 3.55 | 5.68 | 5.6 | 6.97 | 5.13 | 3.1 | 2.65 | 3.4 | 50.84 |