Climate almanac
South Sioux City
Nebraska, United States · 42.47°, -96.41°
What is the weather like in South Sioux City in May?
In May, South Sioux City is typically 73°F (23°C) during the day and 52°F (11°C) at night. The month brings about 5.1 in (129 mm) of precipitation in total. Snowfall averages about 0.1 in (3 mm) over the month.
- Average high73°F (23°C)
- Average low52°F (11°C)
- Precipitation5.1 in (129 mm)
- Clear or mostly clear days10
- Snowfall0.1 in (3 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)