Vidalia, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13 °C (low) to 24.8 °C (high). Annual precipitation averages 1522 Millimeters. 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 | 3.2 °C | 14.3 °C | 149.1 mm |
| February | 4.6 °C | 16.9 °C | 135.64 mm |
| March | 8.8 °C | 21.2 °C | 144.53 mm |
| April | 12.7 °C | 24.9 °C | 132.08 mm |
| May | 17.3 °C | 28.8 °C | 118.87 mm |
| June | 21.3 °C | 31.9 °C | 127 mm |
| July | 22.6 °C | 32.9 °C | 119.38 mm |
| August | 22 °C | 33.4 °C | 116.08 mm |
| September | 19.1 °C | 31 °C | 106.68 mm |
| October | 12.6 °C | 26.4 °C | 104.9 mm |
| November | 7.2 °C | 20.3 °C | 129.54 mm |
| December | 4.3 °C | 15.8 °C | 138.18 mm |
| Annual | 13 °C | 24.8 °C | 1521.98 mm |
| 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 : -9.4°C to -6.7°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 |