Northdale, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 62.8 °F (low) to 82.9 °F (high). Annual precipitation averages 56.4 Inches. Northdale is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 48.9 °F | 71.5 °F | 3.21 in. |
| February | 51.7 °F | 74.1 °F | 2.52 in. |
| March | 55.6 °F | 78.2 °F | 2.63 in. |
| April | 61.5 °F | 83.4 °F | 2.78 in. |
| May | 67.4 °F | 88.4 °F | 3.38 in. |
| June | 72.5 °F | 90.6 °F | 8.5 in. |
| July | 73.8 °F | 91.0 °F | 9.35 in. |
| August | 74.1 °F | 91.1 °F | 9.71 in. |
| September | 72.5 °F | 89.9 °F | 7.22 in. |
| October | 66.1 °F | 84.8 °F | 2.74 in. |
| November | 57.2 °F | 78.6 °F | 1.78 in. |
| December | 51.9 °F | 73.4 °F | 2.55 in. |
| Annual | 62.8 °F | 82.9 °F | 56.37 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |