Bluffton, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.5 °F (low) to 77.2 °F (high). Annual precipitation averages 54.2 Inches. Bluffton 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 | 37.4 °F | 60.2 °F | 4.98 in. |
| February | 40.2 °F | 64.0 °F | 4.87 in. |
| March | 45.8 °F | 71.2 °F | 5.17 in. |
| April | 52.4 °F | 77.5 °F | 4.41 in. |
| May | 61.5 °F | 84.8 °F | 3.11 in. |
| June | 68.8 °F | 89.4 °F | 5.23 in. |
| July | 71.3 °F | 91.3 °F | 5.75 in. |
| August | 70.6 °F | 90.4 °F | 4.95 in. |
| September | 66.2 °F | 86.7 °F | 4.13 in. |
| October | 55.3 °F | 78.8 °F | 2.75 in. |
| November | 44.8 °F | 69.4 °F | 3.7 in. |
| December | 39.8 °F | 62.2 °F | 5.12 in. |
| Annual | 54.5 °F | 77.2 °F | 54.17 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 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |