Greenwood, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.8 °C (low) to 23.4 °C (high). Annual precipitation averages 1457.2 Millimeters. Greenwood is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.2 °C | 11.5 °C | 132.33 mm |
| February | 2.8 °C | 14.1 °C | 131.57 mm |
| March | 6.9 °C | 18.9 °C | 136.4 mm |
| April | 11.6 °C | 23.6 °C | 145.54 mm |
| May | 16.8 °C | 28.1 °C | 132.33 mm |
| June | 20.7 °C | 31.5 °C | 112.27 mm |
| July | 22.3 °C | 32.8 °C | 116.84 mm |
| August | 21.6 °C | 33 °C | 88.65 mm |
| September | 17.9 °C | 30.7 °C | 95.5 mm |
| October | 11.6 °C | 25.1 °C | 100.33 mm |
| November | 5.8 °C | 18.2 °C | 121.41 mm |
| December | 2.6 °C | 13.1 °C | 144.02 mm |
| Annual | 11.8 °C | 23.4 °C | 1457.19 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |