In terms of precipitation, rainfall in Sioux City ranges from 17.0 - 107.0 mm per month. June is typically the wettest month, when rainfall can reach 107.0 mm. January is typically the driest time to visit Sioux City when rainfall is around 17.0 mm.
If weather is an important factor for your trip to Sioux City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).
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