Sioux City Weather in December

During December, Sioux City experiences very low daytime temperatures of 0°C (32°F) and cooler nights around -10°C (14°F). As part of the winter season, some snow/rainfall is to be expected.

Rainfall in Sioux City in December

You can expect snow/rain on around 8 days based on historical patterns, with 37 mm (1.5 in) average for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Sioux City in December

In December, expect very low temperatures in Sioux City, with highs of 0°C (32°F) and lows of -10°C (14°F) at night. December is part of the winter season. Expect a distinctly cold feel throughout the day, not just overnight. With lows of -10°C (14°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. Expect very cold weather this month, so bundle up in warm clothing. It's essential to be ready for the chill.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Sioux City. Our weather planner can help you explore destinations with more pleasant weather conditions.