Savannah, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.6 °F (low) to 77.3 °F (high). Annual precipitation averages 52 Inches. Savannah is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.0 °F | 61.3 °F | 3.61 in. |
| February | 41.9 °F | 64.7 °F | 3.41 in. |
| March | 48.1 °F | 70.9 °F | 3.62 in. |
| April | 55.1 °F | 77.4 °F | 3.21 in. |
| May | 63.2 °F | 83.9 °F | 3.49 in. |
| June | 70.4 °F | 89.0 °F | 6.33 in. |
| July | 73.1 °F | 91.9 °F | 5.96 in. |
| August | 72.7 °F | 90.3 °F | 7.23 in. |
| September | 68.7 °F | 86.0 °F | 4.93 in. |
| October | 58.2 °F | 78.6 °F | 4.08 in. |
| November | 47.4 °F | 70.1 °F | 2.58 in. |
| December | 41.7 °F | 63.7 °F | 3.55 in. |
| Annual | 56.6 °F | 77.3 °F | 52 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |