Average temperature in Sioux City (IA)
The mean minimum and maximum temperatures over the year in Sioux City (Iowa), the United States of America.
- The months of May, June, August and September have nice average temperatures.
- On average, the warmest month(s) are July and August.
- Cold season / winter is in the months January and February.
- On average, the warmest month is July with 30°C.
- On average, the coolest month is January with -1°C.
- The average annual maximum temperature is 16°C.
- The average annual minimum temperature is 3°C.
Forecast for Sioux City (IA)
almost clear and no rain
partly cloudy and thunder
almost clear and no rain