Geneva, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.2 °C (low) to 25.6 °C (high). Annual precipitation averages 1599.9 Millimeters. Geneva is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.7 °C | 16.2 °C | 133.35 mm |
| February | 4.4 °C | 18.3 °C | 145.54 mm |
| March | 7.7 °C | 22.3 °C | 141.22 mm |
| April | 11.2 °C | 25.9 °C | 142.49 mm |
| May | 15.9 °C | 29.9 °C | 100.58 mm |
| June | 20.2 °C | 32.3 °C | 156.46 mm |
| July | 21.6 °C | 33.3 °C | 167.64 mm |
| August | 21.3 °C | 32.8 °C | 141.99 mm |
| September | 18.7 °C | 30.9 °C | 129.54 mm |
| October | 12.5 °C | 26.7 °C | 86.36 mm |
| November | 6.4 °C | 21.3 °C | 118.62 mm |
| December | 4.2 °C | 17.3 °C | 136.14 mm |
| Annual | 12.2 °C | 25.6 °C | 1599.93 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |