Indiantown, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17.6 °C (low) to 28.8 °C (high). Annual precipitation averages 1321.6 Millimeters. Indiantown is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.2 °C | 23.3 °C | 54.1 mm |
| February | 12.2 °C | 25.1 °C | 53.59 mm |
| March | 14 °C | 26.5 °C | 74.93 mm |
| April | 16.3 °C | 28.6 °C | 68.33 mm |
| May | 19.1 °C | 30.7 °C | 108.46 mm |
| June | 21.8 °C | 32.1 °C | 184.4 mm |
| July | 22.7 °C | 32.8 °C | 158.24 mm |
| August | 22.9 °C | 33.1 °C | 203.96 mm |
| September | 22.4 °C | 31.9 °C | 185.17 mm |
| October | 19.8 °C | 29.8 °C | 118.87 mm |
| November | 15.8 °C | 26.8 °C | 61.72 mm |
| December | 12.8 °C | 24.7 °C | 49.78 mm |
| Annual | 17.6 °C | 28.8 °C | 1321.55 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |