Vidalia, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.3 °F (low) to 76.7 °F (high). Annual precipitation averages 59.9 Inches. Vidalia is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.8 °F | 57.8 °F | 5.87 in. |
| February | 40.3 °F | 62.5 °F | 5.34 in. |
| March | 47.8 °F | 70.1 °F | 5.69 in. |
| April | 54.9 °F | 76.8 °F | 5.2 in. |
| May | 63.2 °F | 83.8 °F | 4.68 in. |
| June | 70.3 °F | 89.4 °F | 5.0 in. |
| July | 72.6 °F | 91.3 °F | 4.7 in. |
| August | 71.6 °F | 92.1 °F | 4.57 in. |
| September | 66.3 °F | 87.8 °F | 4.2 in. |
| October | 54.6 °F | 79.5 °F | 4.13 in. |
| November | 44.9 °F | 68.5 °F | 5.1 in. |
| December | 39.8 °F | 60.4 °F | 5.44 in. |
| Annual | 55.3 °F | 76.7 °F | 59.92 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |