Gautier, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 61 °F (low) to 76.4 °F (high). Annual precipitation averages 67.8 Inches. Gautier is located in USDA Plant Hardiness Zone 9a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 43.6 °F | 60.6 °F | 5.83 in. |
| February | 46.2 °F | 63.6 °F | 4.34 in. |
| March | 52.9 °F | 69.5 °F | 5.38 in. |
| April | 60.2 °F | 75.5 °F | 5.43 in. |
| May | 68.6 °F | 82.4 °F | 5.31 in. |
| June | 74.1 °F | 87.5 °F | 6.93 in. |
| July | 75.9 °F | 89.4 °F | 8.4 in. |
| August | 75.9 °F | 89.6 °F | 7.23 in. |
| September | 72.3 °F | 86.8 °F | 5.83 in. |
| October | 63.2 °F | 79.3 °F | 4.09 in. |
| November | 52.5 °F | 69.9 °F | 4.21 in. |
| December | 46.0 °F | 62.8 °F | 4.78 in. |
| Annual | 61 °F | 76.4 °F | 67.76 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |