Pleasant Plains, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 21.2 °C (high). Annual precipitation averages 1297.7 Millimeters. Pleasant Plains is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.8 °C | 8.6 °C | 91.19 mm |
| February | -0.3 °C | 11.4 °C | 96.01 mm |
| March | 4.1 °C | 16.2 °C | 123.95 mm |
| April | 8.9 °C | 21.3 °C | 134.87 mm |
| May | 14.5 °C | 25.6 °C | 136.65 mm |
| June | 19.1 °C | 30.3 °C | 91.69 mm |
| July | 21.3 °C | 32.3 °C | 98.3 mm |
| August | 20.2 °C | 32.2 °C | 90.68 mm |
| September | 16.1 °C | 28.3 °C | 88.65 mm |
| October | 9.8 °C | 22.4 °C | 102.11 mm |
| November | 4.2 °C | 15.7 °C | 123.19 mm |
| December | -0.1 °C | 10.3 °C | 120.4 mm |
| Annual | 9.7 °C | 21.2 °C | 1297.69 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°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 |