August weather forecast
Mountain Valley, AR

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Weather in August

August, the last month of the summer in Mountain Valley, is also a hot month, with an average temperature ranging between max 91.2°F (32.9°C) and min 69.8°F (21°C).

Temperature

With the onset of August, the average high-temperature registers at a still hot 91.2°F (32.9°C), subtly different from July's 91.9°F (33.3°C). Throughout the month of August, Mountain Valley witnesses an average low-temperature of 69.8°F (21°C).

Heat index

In August, the heat index is appraised at a blistering 111.2°F (44°C). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
One should consider that heat index numbers are for shaded settings and light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In August, the average relative humidity is 73%.

Rainfall

In Mountain Valley, in August, during 16.2 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. Throughout the year, in Mountain Valley, Arkansas, there are 161.4 rainfall days, and 38.94" (989mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Mountain Valley.

Daylight

In August, the average length of the day is 13h and 25min.
On the first day of the month, sunrise is at 6:23 am and sunset at 8:14 pm. On the last day of August, in Mountain Valley, sunrise is at 6:45 am and sunset at 7:39 pm CDT.

Sunshine

The average sunshine in August in Mountain Valley, Arkansas, 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

How hot is it in Mountain Valley in August?

The high-temperature, in August, in Mountain Valley, records 91.2°F (32.9°C), while the low-temperature is 69.8°F (21°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 111.2°F (44°C).

What is the average humidity in August in Mountain Valley?

The average relative humidity in August is 73%.

How much does it rain in Mountain Valley in August?

In August, in Mountain Valley, the rain falls for 16.2 days. Throughout August, 3.58" (91mm) of precipitation is accumulated.

When it does not snow in Mountain Valley?

April through October are months without snowfall.

What is the average length of the day in August in Mountain Valley?

In Mountain Valley, the average day length in August is 13h and 25min.

When are sunrise and sunset in August in Mountain Valley?

On the first day of August in Mountain Valley, sunrise is at 6:23 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:39 pm CDT.

How many hours of sunshine does Mountain Valley have in August?

In August, the average sunshine duration in Mountain Valley, Arkansas, is 10.4h.

What is the UV index reading in August in Mountain Valley?

The average daily maximum UV index in August in Mountain Valley, Arkansas, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average max. wind speed
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
Mountain Valley, AR

Average temperature in August - Mountain Valley, AR
  • Average high temperature in August: 91.2°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in August: 69.8°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in August
Mountain Valley, AR

Average pressure in August - Mountain Valley, 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 (29.94"Hg).

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Average wind speed in August
Mountain Valley, AR

Average wind speed in August - Mountain Valley, AR
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in August
Mountain Valley, AR

Average humidity in August - Mountain Valley, AR
  • Average humidity in August: 73%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Mountain Valley, AR

Average rainfall in August - Mountain Valley, AR
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in August
Mountain Valley, AR

Average rainfall days in August - Mountain Valley, AR
  • Average rainfall days in August: 16.2 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).

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Average snowfall in August
Mountain Valley, AR

Average snowfall in August - Mountain Valley, AR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Mountain Valley, AR

Average snowfall days in August - Mountain Valley, AR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.5 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
Mountain Valley, AR

Average daylight in August / Average sunshine in August - Mountain Valley, 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 July (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
Mountain Valley, AR

Average sunshine days in August - Mountain Valley, AR
  • Average sunshine days in August: 12.7 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in August
Mountain Valley, AR

Average UV index in August - Mountain Valley, AR
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in August
Mountain Valley, AR

Average cloud cover in August - Mountain Valley, AR
  • Average cloud cover in August: 29

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

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Average visibility in August
Mountain Valley, AR

Average visibility in August - Mountain Valley, AR
  • Average visibility in August: 6mi

The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).

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Mountain Valley, Arkansas, USA

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