Fort Deposit, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.8 °C (low) to 24.3 °C (high). Annual precipitation averages 1391.9 Millimeters. Fort Deposit is located in USDA Plant Hardiness Zone 8b. 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 | 2 °C | 14.5 °C | 131.57 mm |
| February | 3.9 °C | 16.6 °C | 115.57 mm |
| March | 7.3 °C | 20.7 °C | 139.95 mm |
| April | 10.9 °C | 24.4 °C | 115.82 mm |
| May | 15.7 °C | 28.3 °C | 89.92 mm |
| June | 19.7 °C | 31.4 °C | 112.27 mm |
| July | 21.3 °C | 32.6 °C | 128.02 mm |
| August | 21 °C | 32.4 °C | 123.19 mm |
| September | 18.3 °C | 30.1 °C | 105.16 mm |
| October | 12.2 °C | 25.3 °C | 83.31 mm |
| November | 6.3 °C | 19.6 °C | 118.62 mm |
| December | 3.4 °C | 15.4 °C | 128.52 mm |
| Annual | 11.8 °C | 24.3 °C | 1391.92 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |