Houston, Texas weather in January

Averages from 2021–2025 (155 days of record).

Average high

62°F

Average low

45°F

Rainy days

~11 per month

Total precipitation

7.2 in

Warmest recorded

83°F

Coldest recorded

16°F

Expect January days in Houston, Texas to top out around 62°F and cool to about 45°F overnight, with roughly 11 days of measurable rain across the month. In recent years January has ranged from 16°F to 83°F.