Sugar Land, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 60.8 °F (low) to 79.5 °F (high). Annual precipitation averages 53.7 Inches. Sugar Land is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 44.4 °F | 63.0 °F | 4.13 in. |
| February | 48.1 °F | 66.6 °F | 3.07 in. |
| March | 54.0 °F | 72.9 °F | 3.65 in. |
| April | 60.0 °F | 79.1 °F | 4.24 in. |
| May | 67.9 °F | 85.7 °F | 5.19 in. |
| June | 73.8 °F | 91.1 °F | 5.35 in. |
| July | 75.1 °F | 92.9 °F | 4.0 in. |
| August | 75.1 °F | 93.8 °F | 5.57 in. |
| September | 70.9 °F | 89.5 °F | 5.13 in. |
| October | 61.8 °F | 82.4 °F | 4.61 in. |
| November | 52.1 °F | 72.4 °F | 4.55 in. |
| December | 46.0 °F | 65.0 °F | 4.2 in. |
| Annual | 60.8 °F | 79.5 °F | 53.69 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 |