| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Dec. 21 - Dec. 31 |
| Average Last Frost Date: | Feb. 11 - Feb. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75j - Sea Islands/Coastal Marsh |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 29910 - Bluffton, SC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 40 | 46 | 53 | 62 | 69 | 73 | 72 | 68 | 57 | 48 | 40 | 55 |
| Avg Max Temp (°F) | 59 | 62 | 69 | 75 | 82 | 87 | 90 | 88 | 84 | 77 | 69 | 61 | 75 |
| Avg Precip (In.) | 4.24 | 3.19 | 3.85 | 3.11 | 3.18 | 5.45 | 5.86 | 7.64 | 5.54 | 3.29 | 2.63 | 3.15 | 51.12 |