Poplarville, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.2 °C (low) to 25.4 °C (high). Annual precipitation averages 1657.6 Millimeters. Poplarville is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.9 °C | 15.9 °C | 147.57 mm |
| February | 5.6 °C | 18.2 °C | 130.05 mm |
| March | 9.1 °C | 21.9 °C | 130.3 mm |
| April | 12.6 °C | 25.4 °C | 140.72 mm |
| May | 17.1 °C | 29.4 °C | 138.68 mm |
| June | 20.8 °C | 32.3 °C | 171.45 mm |
| July | 21.9 °C | 33.2 °C | 179.07 mm |
| August | 21.8 °C | 33.2 °C | 153.16 mm |
| September | 19.5 °C | 30.9 °C | 121.16 mm |
| October | 13.6 °C | 26.4 °C | 100.58 mm |
| November | 7.9 °C | 20.9 °C | 104.9 mm |
| December | 5.1 °C | 16.9 °C | 139.95 mm |
| Annual | 13.2 °C | 25.4 °C | 1657.59 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°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 |