Commerce, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 22.1 °C (high). Annual precipitation averages 1315.7 Millimeters. Commerce is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.1 °C | 11.6 °C | 115.06 mm |
| February | 1.7 °C | 13.7 °C | 122.68 mm |
| March | 5 °C | 18.1 °C | 119.38 mm |
| April | 9.2 °C | 22.4 °C | 106.68 mm |
| May | 14.2 °C | 26.2 °C | 87.63 mm |
| June | 18.6 °C | 29.9 °C | 125.73 mm |
| July | 20.6 °C | 31.7 °C | 107.19 mm |
| August | 20.1 °C | 30.9 °C | 121.16 mm |
| September | 16.8 °C | 28.1 °C | 98.3 mm |
| October | 10.4 °C | 22.8 °C | 91.44 mm |
| November | 4.4 °C | 17.4 °C | 100.84 mm |
| December | 1.5 °C | 12.9 °C | 119.63 mm |
| Annual | 10.2 °C | 22.1 °C | 1315.72 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 |