August weather forecast
Eagle Butte, SD

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Weather in August

August maintains July's warm temperatures but brings a slight change in the overall climate of Eagle Butte. There is a considerable decrease in the amount of rainfall reaching 1.26" (32mm), facilitating more dry and sun-drenched days. These conditions combined with the residual summer weather make the month comfortable for outdoor pursuits. In this period, stargazers can also take pleasure from the clear, cloudless nights. August symbolizes the closing phase of summer, allowing residents to enjoy the last few weeks of sunshine before autumn takes over.

Temperature

Eagle Butte indicates an average high-temperature of a moderately hot 84.7°F (29.3°C) in August, showing minor variation from July's 87.3°F (30.7°C). August nights observe an average temperature dip to an enjoyable 64°F (17.8°C).

Heat index

During August, the heat index is computed to be a tropical 86°F (30°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

August and September, with an average relative humidity of 49%, are the least humid months in Eagle Butte.

Rainfall

In Eagle Butte, in August, during 10.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Eagle Butte, during the entire year, the rain falls for 99.7 days and collects up to 16.06" (408mm) of precipitation.

Snowfall

June through September are months without snowfall in Eagle Butte, South Dakota.

Daylight

In August, the average length of the day in Eagle Butte, South Dakota, is 14h and 1min.
On the first day of the month, sunrise is at 5:31 am and sunset at 8:11 pm. On the last day of August, in Eagle Butte, sunrise is at 6:06 am and sunset at 7:23 pm MDT.

Sunshine

In Eagle Butte, the average sunshine in August is 11.4h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In August, the UV index of 6 transforms into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. 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 Eagle Butte during August?

The average high-temperature and low-temperature during August are 84.7°F (29.3°C) and 64°F (17.8°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 86°F (30°C).

What is the least humid month in Eagle Butte?

The months with the lowest humidity in Eagle Butte are August and September, with an average relative humidity of 49%.

What is the average humidity in August in Eagle Butte?

The average relative humidity in August in Eagle Butte, South Dakota, is 49%.

How much does it rain in Eagle Butte in August?

In Eagle Butte, South Dakota, during August, the rain falls for 10.8 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When it does not snow in Eagle Butte?

In Eagle Butte, snow does not fall in June through September.

What is the average length of the day in August in Eagle Butte?

In Eagle Butte, the average day length in August is 14h and 1min.

When are sunrise and sunset in August in Eagle Butte?

On the first day of August in Eagle Butte, South Dakota, sunrise is at 5:31 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:23 pm MDT.

How many hours of sunshine does Eagle Butte have in August?

In August, the average sunshine duration is 11.4h.

How high is the UV index in August in Eagle Butte?

The average daily maximum UV index in August in Eagle Butte is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Eagle Butte, SD

Average temperature in August - Eagle Butte, SD
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in August
Eagle Butte, SD

Average pressure in August - Eagle Butte, SD
  • Average pressure in August: 29.9"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in August
Eagle Butte, SD

Average wind speed in August - Eagle Butte, SD
  • Average wind speed in August: 10.4mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest months (with the lowest average wind speed) are February and August (10.4mph).

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Average humidity in August
Eagle Butte, SD

Average humidity in August - Eagle Butte, SD
  • Average humidity in August: 49%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (49%).

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Average rainfall in August
Eagle Butte, SD

Average rainfall in August - Eagle Butte, SD
  • Average rainfall in August: 1.26"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in August
Eagle Butte, SD

Average rainfall days in August - Eagle Butte, SD
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is May (14.7 days).
The months with the least rainy days are January and February (3.3 days).

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Average snowfall in August
Eagle Butte, SD

Average snowfall in August - Eagle Butte, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Eagle Butte, SD

Average snowfall days in August - Eagle Butte, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.3 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
Eagle Butte, SD

Average daylight in August / Average sunshine in August - Eagle Butte, SD
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 11h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days in August
Eagle Butte, SD

Average sunshine days in August - Eagle Butte, SD
  • Average sunshine days in August: 17 days

The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is April (12.4 days).

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Average UV index in August
Eagle Butte, SD

Average UV index in August - Eagle Butte, SD
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Eagle Butte, SD

Average cloud cover in August - Eagle Butte, SD
  • Average cloud cover in August: 19

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in August
Eagle Butte, SD

Average visibility in August - Eagle Butte, SD
  • 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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Eagle Butte, South Dakota, USA

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