Typical Weather in Sioux Falls, SD in January
27° F Avg High
9° F Avg Low
2 Rainy Days
☀️ Temperature Summary
January is one of the cooler months of the year for Sioux Falls, with highs averaging around 27°F. Overnight lows can reach 9°F. This is the coldest month of the year in Sioux Falls.
You may want to consider a warmer month to visit Sioux Falls, 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 Falls? Try our free trip weather planner