Chapin, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.3 °F (low) to 74.2 °F (high). Annual precipitation averages 46 Inches. Chapin is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.2 °F | 55.2 °F | 4.02 in. |
| February | 36.5 °F | 58.9 °F | 3.59 in. |
| March | 42.6 °F | 66.5 °F | 3.99 in. |
| April | 50.9 °F | 74.9 °F | 3.11 in. |
| May | 59.7 °F | 82.0 °F | 3.19 in. |
| June | 67.7 °F | 88.3 °F | 4.54 in. |
| July | 70.9 °F | 91.5 °F | 3.98 in. |
| August | 70.0 °F | 89.9 °F | 4.57 in. |
| September | 64.2 °F | 84.7 °F | 4.07 in. |
| October | 52.6 °F | 75.2 °F | 3.4 in. |
| November | 42.1 °F | 65.2 °F | 3.4 in. |
| December | 36.4 °F | 57.5 °F | 4.11 in. |
| Annual | 52.3 °F | 74.2 °F | 45.97 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |