Carl, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.4 °C (low) to 21.9 °C (high). Annual precipitation averages 1359.7 Millimeters. Carl 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 | 0.2 °C | 11.1 °C | 124.71 mm |
| February | 1.7 °C | 13.1 °C | 119.38 mm |
| March | 5.1 °C | 17.6 °C | 123.95 mm |
| April | 9.3 °C | 22.3 °C | 104.65 mm |
| May | 14.3 °C | 26.1 °C | 100.33 mm |
| June | 18.7 °C | 29.7 °C | 120.9 mm |
| July | 20.7 °C | 31.4 °C | 119.13 mm |
| August | 20.2 °C | 30.8 °C | 119.89 mm |
| September | 16.9 °C | 27.8 °C | 107.7 mm |
| October | 10.7 °C | 22.7 °C | 94.49 mm |
| November | 4.8 °C | 17.1 °C | 104.39 mm |
| December | 1.8 °C | 12.5 °C | 120.14 mm |
| Annual | 10.4 °C | 21.9 °C | 1359.66 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |