Geneva, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.7 °C (low) to 28 °C (high). Annual precipitation averages 1394.7 Millimeters. Geneva is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.9 °C | 21.3 °C | 74.17 mm |
| February | 10.4 °C | 22.9 °C | 62.23 mm |
| March | 12.6 °C | 25.3 °C | 84.84 mm |
| April | 15.6 °C | 28.1 °C | 71.88 mm |
| May | 19 °C | 30.8 °C | 96.27 mm |
| June | 22.1 °C | 32.4 °C | 202.69 mm |
| July | 23.1 °C | 33.2 °C | 187.96 mm |
| August | 23.3 °C | 33.1 °C | 206.25 mm |
| September | 22.3 °C | 31.7 °C | 183.64 mm |
| October | 18.8 °C | 28.9 °C | 104.9 mm |
| November | 14 °C | 25.2 °C | 56.64 mm |
| December | 10.8 °C | 22.6 °C | 63.25 mm |
| Annual | 16.7 °C | 28 °C | 1394.72 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |