Sioux Falls Weather in January
January in Sioux Falls brings very low temperatures around -3°C (27°F) during the day, dropping to -14°C (7°F) at night, with the driest conditions of the year.
Rainfall in Sioux Falls in January
With the driest weather of the year, this month is a solid choice for exploring, even if you'll want to dress warmly. Analyzing past climate data, one can expect approximately 7 days of snow, averaging 16 mm (0.6 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Sioux Falls in January
In January, Sioux Falls sees very low temperatures, with highs of -3°C (27°F). Nights drop to around -14°C (7°F). During January, the winter season is in full swing. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. Nights drop below freezing to -14°C (7°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. The coldest month of the year calls for plenty of warm layers. Be sure to pack your winter gear.January in Sioux Falls can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Sioux Falls's climate page.
Sioux Falls Temperature in January
Min Temperature
-14°C (7°F)
Max Temperature
-3°C (27°F)
Chance of Rain
23%
Precipitation
16 mm (0.6 in)
Rainy days
7 days
Humidity
71%
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Sioux Falls typically stay consistent throughout January, with daily highs averaging around -3°C (27°F). Nights are very cold, with lows typically ranging from -15°C (5°F) to -12°C (10°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Sioux Falls in January
Browse day-by-day weather records for Sioux Falls spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sioux Falls historical weather extremes in January
The extremes listed below come from historical weather data collected in Sioux Falls from 1976 through 2025.
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
perfect weather
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tolerable
unpleasant
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What to Wear in Sioux Falls in January
Winter clothing is essential for visiting Sioux Falls in January. If you have a heavy coat, waterproof boots with good traction, and plenty of warm layers it's smart to bring them. Pack cloths like thermal underwear, wool socks, and insulated gloves. With minimal rainfall expected, you can leave the rain gear at home.What To Do in Sioux Falls in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Sioux Falls's climate page.
See the full Sioux Falls climate overview or explore weather in the United States of America.
