Chesnee, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 22.2 °C (high). Annual precipitation averages 1308.6 Millimeters. Chesnee is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.2 °C | 11.1 °C | 107.44 mm |
| February | 0.1 °C | 13.4 °C | 95.5 mm |
| March | 3.7 °C | 17.7 °C | 117.6 mm |
| April | 8.2 °C | 22.7 °C | 113.28 mm |
| May | 13.2 °C | 26.6 °C | 101.85 mm |
| June | 17.7 °C | 30.3 °C | 117.09 mm |
| July | 19.8 °C | 32.2 °C | 116.59 mm |
| August | 19.2 °C | 31.2 °C | 118.87 mm |
| September | 15.8 °C | 28.3 °C | 111.25 mm |
| October | 9.1 °C | 22.9 °C | 93.22 mm |
| November | 3.1 °C | 17 °C | 98.55 mm |
| December | 0.3 °C | 12.4 °C | 117.35 mm |
| Annual | 9.1 °C | 22.2 °C | 1308.59 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |