Detroit, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50 °F (low) to 73.3 °F (high). Annual precipitation averages 60.4 Inches. Detroit is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.7 °F | 52.1 °F | 5.49 in. |
| February | 33.9 °F | 57.0 °F | 5.64 in. |
| March | 40.7 °F | 65.8 °F | 5.35 in. |
| April | 48.8 °F | 74.2 °F | 5.87 in. |
| May | 58.2 °F | 81.4 °F | 5.51 in. |
| June | 66.0 °F | 87.9 °F | 4.88 in. |
| July | 69.5 °F | 90.8 °F | 5.03 in. |
| August | 68.7 °F | 90.9 °F | 4.28 in. |
| September | 61.6 °F | 85.8 °F | 3.9 in. |
| October | 49.5 °F | 75.5 °F | 3.73 in. |
| November | 38.7 °F | 63.6 °F | 4.55 in. |
| December | 33.6 °F | 54.8 °F | 6.17 in. |
| Annual | 50 °F | 73.3 °F | 60.4 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |