Donalsonville, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.4 °F (low) to 78.4 °F (high). Annual precipitation averages 56.4 Inches. Donalsonville is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.1 °F | 61.6 °F | 5.07 in. |
| February | 42.3 °F | 65.5 °F | 4.92 in. |
| March | 47.9 °F | 72.5 °F | 5.6 in. |
| April | 54.9 °F | 78.8 °F | 4.62 in. |
| May | 63.6 °F | 86.2 °F | 3.22 in. |
| June | 70.6 °F | 90.3 °F | 5.39 in. |
| July | 72.4 °F | 91.6 °F | 5.68 in. |
| August | 72.3 °F | 91.4 °F | 5.59 in. |
| September | 67.9 °F | 87.6 °F | 4.99 in. |
| October | 57.3 °F | 80.7 °F | 2.85 in. |
| November | 46.5 °F | 71.0 °F | 3.75 in. |
| December | 41.5 °F | 63.8 °F | 4.76 in. |
| Annual | 56.4 °F | 78.4 °F | 56.44 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |