Beaumont, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.9 °C (low) to 25.8 °C (high). Annual precipitation averages 1603.5 Millimeters. Beaumont is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.4 °C | 16.4 °C | 133.6 mm |
| February | 7.6 °C | 18.6 °C | 93.47 mm |
| March | 10.9 °C | 22.1 °C | 95 mm |
| April | 14.6 °C | 25.6 °C | 101.35 mm |
| May | 19.1 °C | 29.3 °C | 130.81 mm |
| June | 22.5 °C | 32.3 °C | 181.86 mm |
| July | 23.4 °C | 33.3 °C | 156.72 mm |
| August | 23.2 °C | 33.7 °C | 146.3 mm |
| September | 20.6 °C | 31.4 °C | 180.59 mm |
| October | 15 °C | 27.3 °C | 139.45 mm |
| November | 9.7 °C | 21.7 °C | 114.81 mm |
| December | 6.6 °C | 17.6 °C | 129.54 mm |
| Annual | 14.9 °C | 25.8 °C | 1603.5 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |