Ruskin, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 65.1 °F (low) to 81.9 °F (high). Annual precipitation averages 54.7 Inches. Ruskin is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 51.8 °F | 70.3 °F | 2.95 in. |
| February | 54.6 °F | 72.8 °F | 2.33 in. |
| March | 58.4 °F | 76.6 °F | 2.96 in. |
| April | 63.9 °F | 81.7 °F | 2.72 in. |
| May | 69.5 °F | 86.7 °F | 3.46 in. |
| June | 74.1 °F | 89.5 °F | 8.64 in. |
| July | 75.4 °F | 90.1 °F | 8.21 in. |
| August | 75.7 °F | 90.5 °F | 8.86 in. |
| September | 74.2 °F | 89.2 °F | 7.29 in. |
| October | 68.5 °F | 84.7 °F | 2.98 in. |
| November | 60.1 °F | 77.6 °F | 1.96 in. |
| December | 54.9 °F | 72.9 °F | 2.38 in. |
| Annual | 65.1 °F | 81.9 °F | 54.74 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |