August weather forecast
Grapevine, AR

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Weather in August

The last month of the summer, August, is another tropical month in Grapevine, Arkansas, with an average temperature varying between 91.9°F (33.3°C) and 71.2°F (21.8°C).

Temperature

Grapevine, Arkansas, experiences an average high-temperature of a still hot 91.9°F (33.3°C) in August, marking an insignificant shift from 92.8°F (33.8°C) in July. August's average low-temperature reading settles at an agreeable 71.2°F (21.8°C).

Heat index

The average heat index in August is appraised at a life-threatening hot 113°F (45°C). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

Rainfall

In Grapevine, during August, the rain falls for 14.8 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, in Grapevine, there are 151.8 rainfall days, and 34.96" (888mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Grapevine.

Daylight

In August, the average length of the day in Grapevine is 13h and 23min.
On the first day of the month, sunrise is at 6:21 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:36 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

How hot is it in Grapevine in August?

In Grapevine, in August, the average high-temperature is 91.9°F (33.3°C), and the average low-temperature is 71.2°F (21.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 113°F (45°C).

What is the average humidity in August in Grapevine?

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

How many days does it rain in August in Grapevine?

In Grapevine, in August, during 14.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Grapevine?

In Grapevine, Arkansas, snow does not fall in April through November.

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

In August, the average day length in Grapevine, Arkansas, is 13h and 23min.

When are sunrise and sunset in August in Grapevine?

On the first day of August in Grapevine, sunrise is at 6:21 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:36 pm CDT.

How many hours of sunshine does Grapevine have in August?

The average sunshine duration in August in Grapevine, Arkansas, is 10.4h.

What is the UV index reading in August in Grapevine?

The average daily maximum UV index in August in Grapevine, Arkansas, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Grapevine, AR

Average temperature in August - Grapevine, AR
  • Average high temperature in August: 91.9°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (50°F).

  • Average low temperature in August: 71.2°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in August
Grapevine, AR

Average pressure in August - Grapevine, AR
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Grapevine, AR

Average wind speed in August - Grapevine, AR
  • Average wind speed in August: 5mph

The windiest months (with the highest average wind speed) are March and April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in August
Grapevine, AR

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

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Grapevine, AR

Average rainfall in August - Grapevine, AR
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in August
Grapevine, AR

Average rainfall days in August - Grapevine, AR
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in August
Grapevine, AR

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

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Grapevine, AR

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

The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Grapevine, AR
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in August
Grapevine, AR

Average sunshine days in August - Grapevine, AR
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in August
Grapevine, AR

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in August
Grapevine, AR

Average cloud cover in August - Grapevine, AR
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in August
Grapevine, AR

Average visibility in August - Grapevine, 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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Grapevine, Arkansas, USA

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