Moss Point, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.4 °C (low) to 24.9 °C (high). Annual precipitation averages 1693.4 Millimeters. Moss Point is located in USDA Plant Hardiness Zone 9a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.6 °C | 16.1 °C | 141.73 mm |
| February | 6.4 °C | 17.7 °C | 109.98 mm |
| March | 10 °C | 21 °C | 134.87 mm |
| April | 13.8 °C | 24.3 °C | 136.4 mm |
| May | 18.3 °C | 28.2 °C | 132.84 mm |
| June | 22.2 °C | 31 °C | 171.45 mm |
| July | 23.2 °C | 32.1 °C | 213.61 mm |
| August | 22.9 °C | 32.2 °C | 179.58 mm |
| September | 20.6 °C | 30.6 °C | 145.54 mm |
| October | 15.4 °C | 26.4 °C | 104.9 mm |
| November | 9.6 °C | 21.3 °C | 110.24 mm |
| December | 5.9 °C | 17.4 °C | 112.27 mm |
| Annual | 14.4 °C | 24.9 °C | 1693.41 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| 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 |