Deerfield Beach, Florida has a Tropical Rainforest climate (Köppen classification: Af). Average annual temperatures range from 20.9 °C (low) to 28.5 °C (high). Annual precipitation averages 1553.5 Millimeters. Deerfield Beach is located in USDA Plant Hardiness Zone 11a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.3 °C | 23.9 °C | 71.63 mm |
| February | 16.3 °C | 25 °C | 70.36 mm |
| March | 17.9 °C | 26.3 °C | 78.99 mm |
| April | 20.3 °C | 28 °C | 95.25 mm |
| May | 22.3 °C | 29.7 °C | 133.35 mm |
| June | 24.1 °C | 31.1 °C | 225.3 mm |
| July | 24.8 °C | 31.9 °C | 153.92 mm |
| August | 25.2 °C | 32.2 °C | 192.02 mm |
| September | 24.6 °C | 31.3 °C | 213.11 mm |
| October | 22.9 °C | 29.8 °C | 156.46 mm |
| November | 19.4 °C | 27.1 °C | 98.55 mm |
| December | 17.3 °C | 25.2 °C | 64.52 mm |
| Annual | 20.9 °C | 28.5 °C | 1553.46 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 11a : 4.4°C to 7.2°C |
| Plant Hardiness Zone - 2012 | Zone 10b : 1.7°C to 4.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Af - Tropical Rainforest |