Dickinson, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.4 °C (low) to 25.8 °C (high). Annual precipitation averages 1496.1 Millimeters. Dickinson is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.1 °C | 17.2 °C | 119.13 mm |
| February | 9.2 °C | 19 °C | 78.74 mm |
| March | 12.6 °C | 22.1 °C | 83.82 mm |
| April | 16.1 °C | 25.3 °C | 111.25 mm |
| May | 20.4 °C | 28.9 °C | 127.25 mm |
| June | 23.5 °C | 31.9 °C | 154.94 mm |
| July | 24.4 °C | 32.9 °C | 114.3 mm |
| August | 24.3 °C | 33.3 °C | 163.83 mm |
| September | 22.1 °C | 31.2 °C | 168.4 mm |
| October | 17.6 °C | 27.3 °C | 136.91 mm |
| November | 11.9 °C | 22.2 °C | 123.95 mm |
| December | 8.1 °C | 18.3 °C | 113.54 mm |
| Annual | 16.4 °C | 25.8 °C | 1496.06 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 |