Palm Valley, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.9 °C (low) to 25.4 °C (high). Annual precipitation averages 1330.7 Millimeters. Palm Valley is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.1 °C | 18 °C | 82.3 mm |
| February | 9.8 °C | 19.3 °C | 72.39 mm |
| March | 12.6 °C | 22 °C | 85.6 mm |
| April | 16.2 °C | 25 °C | 70.87 mm |
| May | 20.1 °C | 28.1 °C | 84.07 mm |
| June | 22.9 °C | 30.7 °C | 177.04 mm |
| July | 23.8 °C | 31.9 °C | 142.75 mm |
| August | 23.9 °C | 31.5 °C | 170.69 mm |
| September | 23 °C | 29.8 °C | 195.33 mm |
| October | 19.1 °C | 26.6 °C | 115.57 mm |
| November | 13.5 °C | 22.5 °C | 62.23 mm |
| December | 10.2 °C | 19.3 °C | 71.88 mm |
| Annual | 16.9 °C | 25.4 °C | 1330.72 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |