Dadeville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.6 °C (low) to 23.8 °C (high). Annual precipitation averages 1409.4 Millimeters. Dadeville 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 | 0.6 °C | 13.4 °C | 133.86 mm |
| February | 2.3 °C | 15.8 °C | 129.54 mm |
| March | 5.7 °C | 20.1 °C | 139.45 mm |
| April | 9.5 °C | 24.1 °C | 117.09 mm |
| May | 14.5 °C | 27.9 °C | 103.12 mm |
| June | 18.8 °C | 31.1 °C | 123.95 mm |
| July | 20.6 °C | 32.5 °C | 127.76 mm |
| August | 20.3 °C | 32.2 °C | 111.51 mm |
| September | 17.2 °C | 29.8 °C | 91.69 mm |
| October | 10.7 °C | 24.7 °C | 83.06 mm |
| November | 4.8 °C | 19.1 °C | 108.2 mm |
| December | 2 °C | 14.6 °C | 140.21 mm |
| Annual | 10.6 °C | 23.8 °C | 1409.44 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 |