Farmerville, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.8 °C (low) to 24.5 °C (high). Annual precipitation averages 1450.3 Millimeters. Farmerville is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.4 °C | 13.6 °C | 144.78 mm |
| February | 3.3 °C | 16.1 °C | 122.94 mm |
| March | 7 °C | 20.3 °C | 139.45 mm |
| April | 11.1 °C | 24.7 °C | 141.99 mm |
| May | 16.3 °C | 28.4 °C | 122.43 mm |
| June | 20.5 °C | 32.2 °C | 111.25 mm |
| July | 22.2 °C | 33.6 °C | 103.12 mm |
| August | 21.7 °C | 33.9 °C | 90.68 mm |
| September | 17.8 °C | 31.1 °C | 95.5 mm |
| October | 11.6 °C | 25.6 °C | 119.63 mm |
| November | 6.1 °C | 19.2 °C | 113.79 mm |
| December | 2.6 °C | 14.7 °C | 144.78 mm |
| Annual | 11.8 °C | 24.5 °C | 1450.34 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |