Leachville, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.3 °C (low) to 21.4 °C (high). Annual precipitation averages 1319 Millimeters. Leachville is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.4 °C | 7.8 °C | 96.27 mm |
| February | 0.3 °C | 10.7 °C | 107.19 mm |
| March | 4.6 °C | 15.7 °C | 125.98 mm |
| April | 9.8 °C | 21.8 °C | 139.95 mm |
| May | 15.9 °C | 26.8 °C | 133.1 mm |
| June | 20.4 °C | 31.4 °C | 94.23 mm |
| July | 22.1 °C | 32.6 °C | 101.6 mm |
| August | 20.8 °C | 32.2 °C | 87.12 mm |
| September | 16.6 °C | 29 °C | 86.87 mm |
| October | 9.9 °C | 23.2 °C | 103.12 mm |
| November | 4.5 °C | 15.6 °C | 118.36 mm |
| December | 0.3 °C | 9.7 °C | 125.22 mm |
| Annual | 10.3 °C | 21.4 °C | 1319.01 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |