The weather in July in Sioux City

It's hot in July in Sioux City with an average temperature of 30°C. Temperatures this month range from a low of 26°C to a high of 33°C. At night, you can expect temperatures between 16°C and 22°C.

Looking for sun? July isn’t a good month to be in Sioux City. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in July for Sioux City, Iowa. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 37°C in 2023, Sioux City reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 16°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 26°C.

Rainfall amount

In July, there is an average of 107 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in July for Sioux City

Click on any day in July to get detailed info about the usual weather on that day in Sioux City. Check out the historical temperatures and precipitation over the past 10 years on this day.

July weather comparison

  Sioux City New York
Average temperature 30°C 31°C
Max. temperature 33°C 33°C
Min. temperature 16°C -5°C
Total precipitation 107 mm 160 mm
Rainy days 13 days 18 days

Start of July

The month of July starts in Sioux City with hot temps, averaging around 30°C during the day and nights around 19°C.

Mid July

By mid-July, daytime temps rise to around 31°C, with nights around 20°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of July

By the end of July, the average daytime temperature in Sioux City is around 31°C, while nighttime temps are about 19°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Sioux City

UV index

The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Check out the climate of Sioux City for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in July in Sioux City, Iowa. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in July in Sioux City

Temperature in July in Sioux City over the years

Precipitation charts

These charts show the average amount of precipitation in July in Sioux City, Iowa. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in July in Sioux City

Total precipitation in July in Sioux City over the years

Daily UV index in July in Sioux City

This chart shows the average daily UV index in July in Sioux City, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in July in Sioux City

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Average weather in Sioux City by month

Click on a month below to see detailed weather info for Sioux City. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.