Clarcona, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.9 °C (low) to 28.1 °C (high). Annual precipitation averages 1402.4 Millimeters. Clarcona is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9 °C | 21.3 °C | 75.44 mm |
| February | 10.5 °C | 22.9 °C | 60.71 mm |
| March | 12.7 °C | 25.4 °C | 84.07 mm |
| April | 15.8 °C | 28.3 °C | 72.14 mm |
| May | 19.2 °C | 31.1 °C | 100.58 mm |
| June | 22.2 °C | 32.6 °C | 208.03 mm |
| July | 23.2 °C | 33.1 °C | 196.6 mm |
| August | 23.4 °C | 33.1 °C | 215.14 mm |
| September | 22.4 °C | 31.8 °C | 177.29 mm |
| October | 18.9 °C | 29.1 °C | 91.19 mm |
| November | 14.1 °C | 25.3 °C | 54.36 mm |
| December | 10.9 °C | 22.6 °C | 66.8 mm |
| Annual | 16.9 °C | 28.1 °C | 1402.35 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 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |