August weather forecast
Bentonville, AR

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

Weather in August

The last month of the summer, August, is also a hot month in Bentonville, Arkansas, with an average temperature varying between 88.2°F (31.2°C) and 67.3°F (19.6°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still tropical 88.2°F (31.2°C). The average low-temperature, in August, is 67.3°F (19.6°C).

Heat index

In August, the average heat index is calculated to be a very hot 102.2°F (39°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, clothing, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

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

Rainfall

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

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in August in Bentonville is 13h and 30min.
On the first day of August, sunrise is at 6:23 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:46 pm CDT.

Sunshine

In Bentonville, 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 risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Bentonville?

In August, 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', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 102.2°F (39°C).

What is the average humidity in August in Bentonville?

The average relative humidity in August in Bentonville, Arkansas, is 72%.

How much does it rain in Bentonville in August?

In August, the rain falls for 15.4 days. Throughout August, 3.43" (87mm) of precipitation is accumulated.

When it does not snow in Bentonville?

June through October are months without snowfall.

What is the average length of the day in August in Bentonville?

The average day length in August in Bentonville is 13h and 30min.

What time are sunrise and sunset in August in Bentonville?

On the first day of August in Bentonville, Arkansas, sunrise is at 6:23 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:46 pm CDT.

How many hours of sunshine does Bentonville have in August?

In August, the average sunshine duration is 10.7h.

When is the highest UV index in Bentonville?

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

What is the UV index reading in August in Bentonville?

In Bentonville, Arkansas, the average daily maximum UV index in August is 6. A UV Index estimate 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 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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 30min

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 44min).

  • Average sunshine in August: 10h and 42min

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).

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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).

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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).

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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).

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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).

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