Clearwater, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 19 °C (low) to 26.9 °C (high). Annual precipitation averages 1422.1 Millimeters. Clearwater is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.3 °C | 20.7 °C | 74.68 mm |
| February | 12.9 °C | 21.8 °C | 66.8 mm |
| March | 15.3 °C | 23.9 °C | 81.79 mm |
| April | 18.5 °C | 26.6 °C | 72.39 mm |
| May | 21.7 °C | 29.3 °C | 75.69 mm |
| June | 24.2 °C | 31.1 °C | 194.31 mm |
| July | 24.8 °C | 31.5 °C | 236.47 mm |
| August | 24.9 °C | 31.8 °C | 242.32 mm |
| September | 23.9 °C | 31.1 °C | 182.37 mm |
| October | 20.9 °C | 28.6 °C | 66.29 mm |
| November | 16.1 °C | 24.8 °C | 55.88 mm |
| December | 13.1 °C | 22.1 °C | 73.15 mm |
| Annual | 19 °C | 26.9 °C | 1422.14 mm |
| Average First Frost Date | Frost Rare |
| 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |