Dunedin, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 65.7 °F (low) to 80.7 °F (high). Annual precipitation averages 55.9 Inches. Dunedin is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 52.0 °F | 69.2 °F | 2.97 in. |
| February | 54.8 °F | 71.4 °F | 2.61 in. |
| March | 59.1 °F | 75.2 °F | 3.18 in. |
| April | 64.8 °F | 80.2 °F | 2.84 in. |
| May | 70.5 °F | 85.1 °F | 2.97 in. |
| June | 75.2 °F | 88.3 °F | 7.63 in. |
| July | 76.4 °F | 88.9 °F | 9.21 in. |
| August | 76.4 °F | 89.4 °F | 9.58 in. |
| September | 74.8 °F | 88.3 °F | 7.24 in. |
| October | 69.0 °F | 83.6 °F | 2.61 in. |
| November | 60.5 °F | 76.6 °F | 2.16 in. |
| December | 55.1 °F | 71.7 °F | 2.92 in. |
| Annual | 65.7 °F | 80.7 °F | 55.92 in. |
| Average First Frost Date | Frost Rare |
| 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 |