Vicksburg, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.6 °C (low) to 24.3 °C (high). Annual precipitation averages 1489.7 Millimeters. Vicksburg 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 °C | 13.5 °C | 141.99 mm |
| February | 4.1 °C | 16.3 °C | 136.4 mm |
| March | 7.9 °C | 20.8 °C | 143.76 mm |
| April | 12.3 °C | 24.6 °C | 167.39 mm |
| May | 16.9 °C | 28.4 °C | 119.89 mm |
| June | 20.6 °C | 31.6 °C | 113.79 mm |
| July | 22.2 °C | 32.9 °C | 107.7 mm |
| August | 22 °C | 33.1 °C | 99.57 mm |
| September | 18.7 °C | 30.6 °C | 96.52 mm |
| October | 12.8 °C | 25.6 °C | 99.82 mm |
| November | 7.1 °C | 19.3 °C | 124.21 mm |
| December | 4 °C | 14.8 °C | 138.68 mm |
| Annual | 12.6 °C | 24.3 °C | 1489.72 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 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |