Salt Lake City, Utah weather in January

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

Average high

38°F

Average low

23°F

Rainy days

~10 per month

Total precipitation

2.5 in

Warmest recorded

56°F

Coldest recorded

-3°F

Expect January days in Salt Lake City, Utah to top out around 38°F and cool to about 23°F overnight, with roughly 10 days of measurable rain across the month. In recent years January has ranged from -3°F to 56°F.