Clearwater, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.8 °F (low) to 76.3 °F (high). Annual precipitation averages 47 Inches. Clearwater 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.3 °F | 58.0 °F | 4.13 in. |
| February | 36.8 °F | 61.7 °F | 3.8 in. |
| March | 43.0 °F | 69.1 °F | 4.34 in. |
| April | 50.2 °F | 76.9 °F | 3.16 in. |
| May | 59.0 °F | 84.1 °F | 3.24 in. |
| June | 67.2 °F | 89.7 °F | 4.92 in. |
| July | 69.7 °F | 92.7 °F | 4.56 in. |
| August | 69.6 °F | 91.2 °F | 4.78 in. |
| September | 63.5 °F | 86.7 °F | 3.85 in. |
| October | 52.8 °F | 77.6 °F | 2.97 in. |
| November | 40.2 °F | 67.6 °F | 3.19 in. |
| December | 35.3 °F | 59.8 °F | 4.1 in. |
| Annual | 51.8 °F | 76.3 °F | 47.04 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |