Stapleton, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.5 °C (low) to 25.1 °C (high). Annual precipitation averages 1733.6 Millimeters. Stapleton is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4 °C | 16.2 °C | 143.51 mm |
| February | 5.9 °C | 18.4 °C | 120.4 mm |
| March | 9.1 °C | 21.7 °C | 138.18 mm |
| April | 12.7 °C | 24.8 °C | 138.43 mm |
| May | 17.2 °C | 28.7 °C | 129.79 mm |
| June | 21.4 °C | 31.3 °C | 176.53 mm |
| July | 22.4 °C | 32.2 °C | 197.36 mm |
| August | 22.2 °C | 32.1 °C | 178.82 mm |
| September | 19.7 °C | 30.5 °C | 150.11 mm |
| October | 13.9 °C | 26.2 °C | 107.44 mm |
| November | 8.3 °C | 21.3 °C | 113.79 mm |
| December | 5.6 °C | 17.6 °C | 139.19 mm |
| Annual | 13.5 °C | 25.1 °C | 1733.55 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |