The weather in August in Iowa

It's hot in August in Iowa with an average temperature of 33°C. Temperatures this month range from a low of 30°C to a high of 34°C. At night, you can expect temperatures between 24°C and 26°C.

Looking for sun? August isn’t a good month to be in Iowa. 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 August for Iowa, Louisiana. 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 42°C in 2023, Iowa reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 25°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 18°C to a highest value of 29°C.

Rainfall amount

In August, there is an average of 328 mm of precipitation, spread over 23 days. The wind speed is around 3 Bft, mostly coming from the Southeast.

Daily weather in August for Iowa

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

August weather comparison

  Iowa New York
Average temperature 33°C 30°C
Max. temperature 34°C 31°C
Min. temperature 24°C -5°C
Total precipitation 328 mm 79 mm
Rainy days 23 days 13 days

Start of August

The month of August starts in Iowa with hot temps, averaging around 34°C during the day and nights around 26°C.

Mid August

By mid-August, daytime temps drop to around 33°C, with nights around 25°C. There’s a high chance of precipitation during this time.

End of August

By the end of August, the average daytime temperature in Iowa is around 33°C, while nighttime temps are about 25°C. There’s a significant chance of many days with precipitation.

Find affordable trips to Iowa

UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

The hurricane season in Iowa runs from June to November.

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

Temperature charts

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

Daily Temperature in August in Iowa

Temperature in August in Iowa over the years

Precipitation charts

These charts show the average amount of precipitation in August in Iowa, Louisiana. 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 August in Iowa

Total precipitation in August in Iowa over the years

Daily UV index in August in Iowa

This chart shows the average daily UV index in August in Iowa, 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 August in Iowa

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Average weather in Iowa by month

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