Moore Haven, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17.5 °C (low) to 29 °C (high). Annual precipitation averages 1151.4 Millimeters. Moore Haven is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.7 °C | 23.6 °C | 46.99 mm |
| February | 12 °C | 25.2 °C | 44.7 mm |
| March | 13.6 °C | 26.9 °C | 59.69 mm |
| April | 16.2 °C | 29.2 °C | 62.23 mm |
| May | 19 °C | 31.3 °C | 92.71 mm |
| June | 21.9 °C | 32.5 °C | 187.96 mm |
| July | 22.7 °C | 33.1 °C | 163.83 mm |
| August | 22.9 °C | 33.1 °C | 184.91 mm |
| September | 22.5 °C | 32.2 °C | 155.96 mm |
| October | 19.7 °C | 30 °C | 72.9 mm |
| November | 15.4 °C | 26.8 °C | 39.12 mm |
| December | 12.8 °C | 24.6 °C | 40.39 mm |
| Annual | 17.5 °C | 29 °C | 1151.39 mm |
| Average First Frost Date | Frost Rare |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |