Typical Weather in Sioux City, IA in January

31° F Avg High

10° F Avg Low

2 Rainy Days

☀️ Temperature Summary

January is one of the cooler months of the year for Sioux City, with highs averaging around 31°F. Overnight lows can reach 10°F. This is the coldest month of the year in Sioux City.

You may want to consider a warmer month to visit Sioux City, unless you're ready to brave the cold.

High Temps Throughout the Year

🎒 What to Pack

Pick up a few of these items to keep your trip fun and comfortable.

☔ Rain Summary

In January you can expect close to a 6% chance of rain for any given day. It rains less than usual in January, with total rainfall for the month typically near 1 inches.

Rainfall Throughout the Year

Planning a trip to Sioux City? Try our free trip weather planner

📍 Nearby Cities in January

52°F / 28°F
51°F / 24°F
29°F / 11°F
26°F / 10°F
23°F / 6°F
34°F / 16°F

📅 Year Round Weather in Sioux City

31°F / 10°F
32°F / 10°F
49°F / 25°F
60°F / 35°F
71°F / 48°F
84°F / 60°F
87°F / 64°F
83°F / 61°F
78°F / 53°F
63°F / 38°F
49°F / 25°F
36°F / 16°F
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