August weather forecast
Bentonville, AR

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The scenic residential neighborhood in Bentonville, in Northwest Arkansas
The scenic residential neighborhood in Bentonville, in Northwest Arkansas

Weather in August

As the calendar turns to August, the weather in Bentonville, Arkansas, continues to echo the summer trend with less heat intensity. Markings on the temperature scale slightly take a step back from the July peaks, settling just below at 88.2°F (31.2°C). Warmth percolates throughout the city under clear skies, amplified by strong sunshine hours. August experiences ample light from the sun, yet cloud cover closely follows July's pattern, extending a comforting shade from time to time. The summer crescendos in August, upholding the weather variation under a sunny disposition.

Temperature

In August, Bentonville's weather conditions record an average high-temperature of a still hot 88.2°F (31.2°C), demonstrating little divergence from the preceding month. Bentonville experiences an average temperature drop to an enjoyable 67.3°F (19.6°C) during August nights.

Heat index

Throughout August, the heat index is computed to be a fiery hot 102.2°F (39°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In August, the average relative humidity is 72%.

Rainfall

In Bentonville, Arkansas, in August, during 15.4 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. In Bentonville, during the entire year, the rain falls for 152.6 days and collects up to 33.23" (844mm) of precipitation.

Snowfall

In Bentonville, snow does not fall in June through October.

Daylight

The average length of the day in August is 13h and 30min.
On the first day of the month, sunrise is at 6:24 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:48 am and sunset at 7:45 pm CDT.

Sunshine

The average sunshine in August is 10.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

How hot is August?

In August, in Bentonville, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is computed to be 102.2°F (39°C).

What is the average humidity in August?

In Bentonville, the average relative humidity in August is 72%.

How many days does it rain in August?

In Bentonville, in August, during 15.4 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 30min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:24 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:45 pm CDT.

How long on average sun shines in August in Bentonville?

In Bentonville, the average sunshine duration in August is 10.7h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from 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
Bentonville, AR

Average temperature in August - Bentonville, AR
  • Average high temperature in August: 88.2°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in August
Bentonville, AR

Average pressure in August - Bentonville, AR
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Bentonville, AR

Average wind speed in August - Bentonville, AR
  • Average wind speed in August: 6.4mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in August
Bentonville, AR

Average humidity in August - Bentonville, AR
  • Average humidity in August: 72%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Bentonville, AR

Average rainfall in August - Bentonville, AR
  • Average rainfall in August: 3.43"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.73").

Average rainfall days in August
Bentonville, AR

Average rainfall days in August - Bentonville, AR
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in August
Bentonville, AR

Average snowfall in August - Bentonville, AR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Bentonville, AR

Average snowfall days in August - Bentonville, AR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Bentonville, AR

Average daylight in August / Average sunshine in August - Bentonville, AR
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in August
Bentonville, AR

Average sunshine days in August - Bentonville, AR
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in August
Bentonville, AR

Average UV index in August - Bentonville, AR
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in August
Bentonville, AR

Average cloud cover in August - Bentonville, AR
  • Average cloud cover in August: 24

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in August
Bentonville, AR

Average visibility in August - Bentonville, AR
  • 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).

Bentonville, Arkansas, USA

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