Sterrett, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.1 °C (low) to 23.6 °C (high). Annual precipitation averages 1461 Millimeters. Sterrett is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.1 °C | 12.7 °C | 132.84 mm |
| February | 1.7 °C | 15.2 °C | 136.91 mm |
| March | 5.1 °C | 19.7 °C | 139.45 mm |
| April | 9.1 °C | 24.1 °C | 130.05 mm |
| May | 14.2 °C | 27.9 °C | 116.33 mm |
| June | 18.7 °C | 31.2 °C | 127.25 mm |
| July | 20.6 °C | 32.8 °C | 125.48 mm |
| August | 20.1 °C | 32.5 °C | 108.97 mm |
| September | 16.8 °C | 30.1 °C | 106.17 mm |
| October | 9.9 °C | 24.7 °C | 89.66 mm |
| November | 3.9 °C | 18.7 °C | 113.79 mm |
| December | 1.5 °C | 14.1 °C | 134.11 mm |
| Annual | 10.1 °C | 23.6 °C | 1461.01 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |