August weather forecast
Joplin, AR

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Weather in August

The last month of the summer, August, is another hot month in Joplin, Arkansas, with an average temperature ranging between min 69.3°F (20.7°C) and max 90.1°F (32.3°C).

Temperature

August ushers in an average high-temperature of a still hot 90.1°F (32.3°C), aligning closely with the preceding month. Throughout August, the temperature tends to fall to a consistent average low of 69.3°F (20.7°C).

Heat index

The average heat index in August is calculated to be a blistering 107.6°F (42°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

July through October, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Joplin, in August, during 17.7 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. In Joplin, during the entire year, the rain falls for 160.2 days and collects up to 38.86" (987mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Joplin, the average length of the day in August is 13h and 25min.
On the first day of August, sunrise is at 6:24 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:41 pm CDT.

Sunshine

The average sunshine in August is 10.1h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, in Joplin, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 69.3°F (20.7°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is calculated to be 107.6°F (42°C).

What are the least humid months?

The months with the lowest humidity are July through October, with an average relative humidity of 73%.

What is the average humidity in August?

In August, the average relative humidity is 73%.

How much does it rain in August?

In August, the rain falls for 17.7 days. Throughout August, 3.5" (89mm) of precipitation is accumulated.

When it does not snow in Joplin?

In Joplin, snow does not fall in April through October.

How many hours of daylight does Joplin have in August?

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

When are sunrise and sunset in August in Joplin?

On the first day of August, sunrise is at 6:24 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:41 pm CDT.

How long on average sun shines in August?

In Joplin, the average sunshine duration in August is 10.1h.

What is the UV index reading in August?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Joplin, AR

Average temperature in August - Joplin, AR
  • Average high temperature in August: 90.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in August: 69.3°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in August
Joplin, AR

Average pressure in August - Joplin, 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).

Average wind speed in August
Joplin, AR

Average wind speed in August - Joplin, AR
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in August
Joplin, AR

Average humidity in August - Joplin, AR
  • Average humidity in August: 73%

The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July, August, September and October (73%).

Average rainfall in August
Joplin, AR

Average rainfall in August - Joplin, AR
  • Average rainfall in August: 3.5"

The wettest month (with the highest rainfall) is May (4.76").
The driest month (with the least rainfall) is January (2.32").

Average rainfall days in August
Joplin, AR

Average rainfall days in August - Joplin, AR
  • Average rainfall days in August: 17.7 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is January (9.6 days).

Average snowfall in August
Joplin, AR

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

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Joplin, AR

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

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Joplin, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in August
Joplin, AR

Average sunshine days in August - Joplin, AR
  • Average sunshine days in August: 10.5 days

The month with the most sunshine days is January (19 days).
The month with the least sunshine days is August (10.5 days).

Average UV index in August
Joplin, AR

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

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

Average cloud cover in August
Joplin, AR

Average cloud cover in August - Joplin, AR
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).

Average visibility in August
Joplin, AR

Average visibility in August - Joplin, 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).

Joplin, Arkansas, USA

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