Cinco Ranch, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.5 °C (low) to 26.4 °C (high). Annual precipitation averages 1321.3 Millimeters. Cinco Ranch is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.2 °C | 17.1 °C | 98.3 mm |
| February | 8.3 °C | 19.2 °C | 76.45 mm |
| March | 11.7 °C | 22.7 °C | 92.96 mm |
| April | 15.1 °C | 26.2 °C | 106.17 mm |
| May | 19.6 °C | 29.9 °C | 127.25 mm |
| June | 22.8 °C | 32.8 °C | 132.59 mm |
| July | 23.6 °C | 33.9 °C | 93.22 mm |
| August | 23.5 °C | 34.6 °C | 136.65 mm |
| September | 21.1 °C | 32 °C | 125.73 mm |
| October | 15.8 °C | 27.9 °C | 113.03 mm |
| November | 10.6 °C | 22.3 °C | 113.28 mm |
| December | 7.1 °C | 18.2 °C | 105.66 mm |
| Annual | 15.5 °C | 26.4 °C | 1321.29 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |