Ruskin, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 18.4 °C (low) to 27.7 °C (high). Annual precipitation averages 1390.4 Millimeters. Ruskin is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11 °C | 21.3 °C | 74.93 mm |
| February | 12.6 °C | 22.7 °C | 59.18 mm |
| March | 14.7 °C | 24.8 °C | 75.18 mm |
| April | 17.7 °C | 27.6 °C | 69.09 mm |
| May | 20.8 °C | 30.4 °C | 87.88 mm |
| June | 23.4 °C | 31.9 °C | 219.46 mm |
| July | 24.1 °C | 32.3 °C | 208.53 mm |
| August | 24.3 °C | 32.5 °C | 225.04 mm |
| September | 23.4 °C | 31.8 °C | 185.17 mm |
| October | 20.3 °C | 29.3 °C | 75.69 mm |
| November | 15.6 °C | 25.3 °C | 49.78 mm |
| December | 12.7 °C | 22.7 °C | 60.45 mm |
| Annual | 18.4 °C | 27.7 °C | 1390.38 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 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |