August weather forecast
South Yankton, NE

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Weather in August

The last month of the summer, August, is also a moderately hot month in South Yankton, Nebraska, with an average temperature ranging between max 83.3°F (28.5°C) and min 61.3°F (16.3°C).

Temperature

August's arrival brings an average high-temperature of a still moderately hot 83.3°F (28.5°C), demonstrating subtle variation from the preceding month. South Yankton logs a substantial downturn to an enjoyable 61.3°F (16.3°C) during August nights, a considerable shift from daytime highs.

Heat index

For August, the heat index is evaluated at a tropical 89.6°F (32°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In South Yankton, the average relative humidity in August is 70%.

Rainfall

In South Yankton, during August, the rain falls for 14.2 days and regularly aggregates up to 2.24" (57mm) of precipitation. In South Yankton, during the entire year, the rain falls for 117.9 days and collects up to 21.93" (557mm) of precipitation.

Snowfall

June through September are months without snowfall in South Yankton.

Daylight

In South Yankton, Nebraska, the average length of the day in August is 13h and 52min.
On the first day of the month, sunrise is at 6:21 am and sunset at 8:50 pm. On the last day of August, sunrise is at 6:54 am and sunset at 8:05 pm CDT.

Sunshine

In South Yankton, the average sunshine in August is 10.2h.

UV index

The months with the highest UV index in South Yankton are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during August leads to these advisories:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

Is it hot in South Yankton during August?

In South Yankton, in August, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 61.3°F (16.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 89.6°F (32°C).

What is the average humidity in August in South Yankton?

In August, the average relative humidity in South Yankton, Nebraska, is 70%.

How much does it rain in South Yankton in August?

In South Yankton, Nebraska, during August, the rain falls for 14.2 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow in South Yankton?

In South Yankton, Nebraska, snow does not fall in June through September.

How many hours of daylight does South Yankton have in August?

In South Yankton, Nebraska, the average day length in August is 13h and 52min.

When is the sunrise / sunset in August in South Yankton?

On the first day of August in South Yankton, Nebraska, sunrise is at 6:21 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:05 pm CDT.

How many hours of sunshine does South Yankton have in August?

The average sunshine duration in August in South Yankton is 10.2h.

What are the months with the highest UV index in South Yankton?

The months with the highest UV index in South Yankton, Nebraska, are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in South Yankton?

The average daily maximum UV index in August in South Yankton is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
South Yankton, NE

Average temperature in August - South Yankton, NE
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

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Average pressure in August
South Yankton, NE

Average pressure in August - South Yankton, NE
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in August
South Yankton, NE

Average wind speed in August - South Yankton, NE
  • Average wind speed in August: 8.2mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

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Average humidity in August
South Yankton, NE

Average humidity in August - South Yankton, NE
  • Average humidity in August: 70%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).

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Average rainfall in August
South Yankton, NE

Average rainfall in August - South Yankton, NE
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").

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Average rainfall days in August
South Yankton, NE

Average rainfall days in August - South Yankton, NE
  • Average rainfall days in August: 14.2 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in August
South Yankton, NE

Average snowfall in August - South Yankton, NE
  • Average snowfall in August: 0"

The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
South Yankton, NE

Average snowfall days in August - South Yankton, NE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
South Yankton, NE

Average daylight in August / Average sunshine in August - South Yankton, NE
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in August
South Yankton, NE

Average sunshine days in August - South Yankton, NE
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).

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Average UV index in August
South Yankton, NE

Average UV index in August - South Yankton, NE
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in August
South Yankton, NE

Average cloud cover in August - South Yankton, NE
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in August
South Yankton, NE

Average visibility in August - South Yankton, NE
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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South Yankton, Nebraska, USA

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