Humble, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.8 °C (low) to 26.3 °C (high). Annual precipitation averages 1404.9 Millimeters. Humble is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.4 °C | 17.2 °C | 109.47 mm |
| February | 8.4 °C | 19.1 °C | 86.87 mm |
| March | 12 °C | 22.4 °C | 91.69 mm |
| April | 15.6 °C | 25.9 °C | 98.04 mm |
| May | 19.9 °C | 29.7 °C | 131.06 mm |
| June | 23.2 °C | 32.7 °C | 141.99 mm |
| July | 24.2 °C | 33.9 °C | 102.36 mm |
| August | 24.1 °C | 34.4 °C | 143.76 mm |
| September | 21.5 °C | 31.9 °C | 126.24 mm |
| October | 16.4 °C | 27.7 °C | 138.68 mm |
| November | 10.9 °C | 22.1 °C | 125.22 mm |
| December | 7.3 °C | 18.1 °C | 109.47 mm |
| Annual | 15.8 °C | 26.3 °C | 1404.85 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| 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 |