Dickinson, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 61.6 °F (low) to 78.4 °F (high). Annual precipitation averages 58.9 Inches. Dickinson is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 44.7 °F | 62.9 °F | 4.69 in. |
| February | 48.5 °F | 66.2 °F | 3.1 in. |
| March | 54.7 °F | 71.8 °F | 3.3 in. |
| April | 61.0 °F | 77.6 °F | 4.38 in. |
| May | 68.8 °F | 84.1 °F | 5.01 in. |
| June | 74.3 °F | 89.4 °F | 6.1 in. |
| July | 76.0 °F | 91.2 °F | 4.5 in. |
| August | 75.7 °F | 92.0 °F | 6.45 in. |
| September | 71.8 °F | 88.1 °F | 6.63 in. |
| October | 63.7 °F | 81.1 °F | 5.39 in. |
| November | 53.5 °F | 71.9 °F | 4.88 in. |
| December | 46.6 °F | 65.0 °F | 4.47 in. |
| Annual | 61.6 °F | 78.4 °F | 58.9 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |