Clio, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.3 °C (low) to 24.7 °C (high). Annual precipitation averages 1435.4 Millimeters. Clio is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.6 °C | 15.1 °C | 122.94 mm |
| February | 4.5 °C | 17.2 °C | 122.68 mm |
| March | 7.6 °C | 21.2 °C | 140.72 mm |
| April | 11.1 °C | 24.9 °C | 113.28 mm |
| May | 16.1 °C | 28.9 °C | 91.44 mm |
| June | 20 °C | 31.8 °C | 143.76 mm |
| July | 21.4 °C | 32.7 °C | 151.64 mm |
| August | 21.1 °C | 32.4 °C | 122.43 mm |
| September | 18.5 °C | 30.4 °C | 101.35 mm |
| October | 12.8 °C | 25.9 °C | 80.52 mm |
| November | 7.1 °C | 20.2 °C | 108.46 mm |
| December | 4.3 °C | 16.2 °C | 136.14 mm |
| Annual | 12.3 °C | 24.7 °C | 1435.36 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°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 |