Beaumont, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.6 °C (low) to 26 °C (high). Annual precipitation averages 1598.2 Millimeters. Beaumont is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.1 °C | 16.1 °C | 158.5 mm |
| February | 3.8 °C | 18.3 °C | 133.6 mm |
| March | 7.2 °C | 22.2 °C | 147.32 mm |
| April | 10.8 °C | 26.2 °C | 127.25 mm |
| May | 15.6 °C | 30.2 °C | 116.59 mm |
| June | 19.7 °C | 33 °C | 154.69 mm |
| July | 21.2 °C | 33.9 °C | 158.5 mm |
| August | 21.1 °C | 33.9 °C | 136.65 mm |
| September | 18.1 °C | 32.1 °C | 116.59 mm |
| October | 11.3 °C | 27.4 °C | 88.14 mm |
| November | 5.4 °C | 21.2 °C | 109.98 mm |
| December | 3 °C | 17.1 °C | 150.37 mm |
| Annual | 11.6 °C | 26 °C | 1598.18 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |