Leslie, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.4 °C (low) to 20.9 °C (high). Annual precipitation averages 1298.4 Millimeters. Leslie is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.3 °C | 8.3 °C | 87.88 mm |
| February | -1.3 °C | 11.1 °C | 88.9 mm |
| March | 2.9 °C | 15.7 °C | 124.71 mm |
| April | 7.9 °C | 21.2 °C | 136.91 mm |
| May | 13.2 °C | 25 °C | 132.59 mm |
| June | 17.9 °C | 29.6 °C | 100.33 mm |
| July | 20.1 °C | 32.1 °C | 101.09 mm |
| August | 19.1 °C | 31.9 °C | 90.68 mm |
| September | 14.7 °C | 28.1 °C | 101.09 mm |
| October | 8.3 °C | 21.9 °C | 106.17 mm |
| November | 2.8 °C | 15.4 °C | 124.97 mm |
| December | -1.6 °C | 10 °C | 103.12 mm |
| Annual | 8.4 °C | 20.9 °C | 1298.44 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |