West Melbourne, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 18.1 °C (low) to 27.8 °C (high). Annual precipitation averages 1405.9 Millimeters. West Melbourne is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.1 °C | 22.2 °C | 70.87 mm |
| February | 12.3 °C | 23.4 °C | 65.02 mm |
| March | 14.5 °C | 25.1 °C | 75.44 mm |
| April | 17.2 °C | 27.5 °C | 64.77 mm |
| May | 20.1 °C | 29.8 °C | 95.25 mm |
| June | 22.4 °C | 31.4 °C | 198.12 mm |
| July | 23.1 °C | 32.3 °C | 172.97 mm |
| August | 23.4 °C | 32.3 °C | 194.82 mm |
| September | 23 °C | 31.2 °C | 202.95 mm |
| October | 20.7 °C | 28.9 °C | 129.54 mm |
| November | 16.2 °C | 25.7 °C | 71.37 mm |
| December | 13.1 °C | 23.3 °C | 64.77 mm |
| Annual | 18.1 °C | 27.8 °C | 1405.89 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |