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The weather in August in South Dakota

It's hot in August in South Dakota with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 32°C. At night, you can expect temperatures between 15°C and 19°C.

August is a good month to be in South Dakota for sunny weather. You’ll have high temperatures and not too much 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 South Dakota, United States. 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 2022, South Dakota reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 15°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 25°C.

Rainfall amount

In August, there is an average of 72 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in August for South Dakota

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

August weather comparison

  South Dakota New York
Average temperature 30°C 30°C
Max. temperature 32°C 31°C
Min. temperature 15°C -5°C
Total precipitation 72 mm 79 mm
Rainy days 10 days 13 days

Start of August

The month of August starts in South Dakota with hot temps, averaging around 31°C during the day and nights around 18°C.

Mid August

By mid-August, daytime temps drop to around 30°C, with nights around 18°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of August

By the end of August, the average daytime temperature in South Dakota is around 30°C, while nighttime temps are about 17°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable vacations to South Dakota

UV index

The UV index is a maximum of 5 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 South Dakota for all months and discover the best travel time

The climate in South Dakota is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in South Dakota to get the full picture of the climate.

Temperature charts

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

Daily Temperature in August in South Dakota

Temperature in August in South Dakota over the years

Precipitation charts

These charts show the average amount of precipitation in August in South Dakota, United States. 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 South Dakota

Total precipitation in August in South Dakota over the years

Daily UV index in August in South Dakota

This chart shows the average daily UV index in August in South Dakota, 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 South Dakota

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Average weather in South Dakota by month

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