Vidalia, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.9 °C (low) to 25.3 °C (high). Annual precipitation averages 1207.5 Millimeters. Vidalia is located in USDA Plant Hardiness Zone 9a. 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 | 3.3 °C | 15.7 °C | 109.47 mm |
| February | 4.8 °C | 17.8 °C | 101.35 mm |
| March | 8.1 °C | 21.5 °C | 107.7 mm |
| April | 11.9 °C | 25.4 °C | 84.58 mm |
| May | 16.7 °C | 29.6 °C | 75.18 mm |
| June | 20.8 °C | 32.3 °C | 126.49 mm |
| July | 22.3 °C | 33.6 °C | 123.7 mm |
| August | 22.2 °C | 33.1 °C | 144.53 mm |
| September | 19.3 °C | 30.6 °C | 93.47 mm |
| October | 13.4 °C | 26.2 °C | 69.85 mm |
| November | 7.5 °C | 20.9 °C | 69.09 mm |
| December | 4.6 °C | 16.9 °C | 102.11 mm |
| Annual | 12.9 °C | 25.3 °C | 1207.52 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |