Charleston Park, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17.2 °C (low) to 29.2 °C (high). Annual precipitation averages 1426 Millimeters. Charleston Park is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.3 °C | 23.7 °C | 52.32 mm |
| February | 11.7 °C | 25.3 °C | 50.29 mm |
| March | 13.1 °C | 27 °C | 61.72 mm |
| April | 15.7 °C | 29.4 °C | 60.2 mm |
| May | 18.7 °C | 31.6 °C | 111.76 mm |
| June | 21.7 °C | 32.7 °C | 255.27 mm |
| July | 22.6 °C | 33 °C | 225.55 mm |
| August | 22.9 °C | 33.2 °C | 244.86 mm |
| September | 22.4 °C | 32.3 °C | 195.33 mm |
| October | 19.5 °C | 30.2 °C | 74.93 mm |
| November | 14.9 °C | 26.9 °C | 45.72 mm |
| December | 12.3 °C | 24.7 °C | 48.01 mm |
| Annual | 17.2 °C | 29.2 °C | 1425.96 mm |
| Average First Frost Date | No Frost |
| 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 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |