Deenwood, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.5 °F (low) to 79 °F (high). Annual precipitation averages 49.3 Inches. Deenwood 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 | 38.7 °F | 62.9 °F | 4.09 in. |
| February | 41.4 °F | 66.4 °F | 3.67 in. |
| March | 46.9 °F | 72.9 °F | 4.09 in. |
| April | 53.8 °F | 79.5 °F | 3.18 in. |
| May | 61.7 °F | 86.2 °F | 2.81 in. |
| June | 69.2 °F | 90.6 °F | 6.38 in. |
| July | 71.7 °F | 92.7 °F | 6.0 in. |
| August | 71.6 °F | 91.5 °F | 6.33 in. |
| September | 67.4 °F | 87.5 °F | 4.28 in. |
| October | 56.9 °F | 80.1 °F | 3.35 in. |
| November | 46.2 °F | 71.9 °F | 2.15 in. |
| December | 41.0 °F | 65.3 °F | 2.98 in. |
| Annual | 55.5 °F | 79 °F | 49.31 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 |