Whitmire, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 23.4 °C (high). Annual precipitation averages 1173.7 Millimeters. Whitmire is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.6 °C | 12.6 °C | 101.35 mm |
| February | 0.7 °C | 14.7 °C | 92.46 mm |
| March | 3.9 °C | 18.9 °C | 106.68 mm |
| April | 8.7 °C | 24.1 °C | 89.41 mm |
| May | 13.9 °C | 27.9 °C | 84.58 mm |
| June | 18.7 °C | 31.7 °C | 113.28 mm |
| July | 20.6 °C | 33.4 °C | 98.04 mm |
| August | 20 °C | 32.4 °C | 104.65 mm |
| September | 16.7 °C | 29.3 °C | 104.39 mm |
| October | 9.7 °C | 23.9 °C | 81.03 mm |
| November | 3.6 °C | 18.2 °C | 89.66 mm |
| December | 0.7 °C | 13.8 °C | 108.2 mm |
| Annual | 9.7 °C | 23.4 °C | 1173.73 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |