Hinesville, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.2 °C (low) to 25.7 °C (high). Annual precipitation averages 1293.6 Millimeters. Hinesville is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.6 °C | 16.7 °C | 96.01 mm |
| February | 5 °C | 18.6 °C | 90.68 mm |
| March | 8.4 °C | 22.2 °C | 98.3 mm |
| April | 12.1 °C | 25.9 °C | 82.8 mm |
| May | 16.7 °C | 29.6 °C | 92.2 mm |
| June | 20.9 °C | 32.4 °C | 156.46 mm |
| July | 22.4 °C | 33.7 °C | 150.62 mm |
| August | 22.3 °C | 32.9 °C | 175.77 mm |
| September | 19.8 °C | 30.4 °C | 111 mm |
| October | 13.9 °C | 26.3 °C | 96.01 mm |
| November | 7.9 °C | 21.6 °C | 55.88 mm |
| December | 5 °C | 17.9 °C | 87.88 mm |
| Annual | 13.2 °C | 25.7 °C | 1293.61 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |