Catawba, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10 °C (low) to 22.6 °C (high). Annual precipitation averages 1135.9 Millimeters. Catawba is located in USDA Plant Hardiness Zone 8a. 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 | -0.6 °C | 11.7 °C | 97.79 mm |
| February | 0.8 °C | 13.8 °C | 82.04 mm |
| March | 4.3 °C | 18.1 °C | 102.62 mm |
| April | 9.1 °C | 23.1 °C | 90.93 mm |
| May | 14.3 °C | 26.8 °C | 89.92 mm |
| June | 18.8 °C | 30.7 °C | 104.65 mm |
| July | 20.8 °C | 32.6 °C | 100.08 mm |
| August | 20.2 °C | 31.5 °C | 108.71 mm |
| September | 16.8 °C | 28.6 °C | 96.52 mm |
| October | 9.9 °C | 23.2 °C | 79.5 mm |
| November | 4 °C | 17.5 °C | 85.85 mm |
| December | 1 °C | 13.1 °C | 97.28 mm |
| Annual | 10 °C | 22.6 °C | 1135.89 mm |
| 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 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |