August weather forecast and climate
Joplin, MO

Amazing Grand Falls in Joplin, Missouri
Amazing Grand Falls in Joplin, Missouri

Weather in August

August, the last month of the summer, in Joplin, is also a hot month, with average temperature fluctuating between 67.6°F (19.8°C) and 87.1°F (30.6°C).

Temperature

In Joplin, the average high-temperature is essentially the same as in July - a still hot 87.1°F (30.6°C). In Joplin, Missouri,, the average low-temperature is 67.6°F (19.8°C).

Heat index

In August, the average heat index is estimated at a torrid 98.8°F (37.1°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, pregnancy). Bear in mind that direct sunshine exposure increases weather impact, and may raise 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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. 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 Joplin, the average relative humidity is 72%.

Rainfall

In Joplin, in August, it is raining for 14.7 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Joplin, there are 143.4 rainfall days, and 32.01" (813mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Joplin, the average length of the day is 13.5h.

Sunshine

In August, the average sunshine in Joplin is 10.5h.

UV index

In Joplin, Missouri, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the 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 Joplin?

In August, in Joplin, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 67.6°F (19.8°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 98.8°F (37.1°C).

What is the average humidity in August in Joplin?

The average relative humidity in August is 72%.

How much does it rain in Joplin in August?

In Joplin, Missouri, during August, the rain falls for 14.7 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Joplin?

April, June through October are months without snowfall.

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

The average length of the day in August in Joplin is 13.5h.

How many hours of sunshine does Joplin have in August?

In Joplin, the average sunshine in August is 10.5h.

What is the UV index reading in August in Joplin?

In August, the average daily maximum UV index in Joplin, Missouri, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in August
Joplin, MO

Average temperature in August - Joplin, MO
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in August
Joplin, MO

Average pressure in August - Joplin, MO
  • Average pressure in August: 29.97"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in August
Joplin, MO

Average wind speed in August - Joplin, MO
  • Average wind speed in August: 7.3mph

The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in August
Joplin, MO

Average humidity in August - Joplin, MO
  • Average humidity in August: 72%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Joplin, MO

Average rainfall in August - Joplin, MO
  • Average rainfall in August: 2.87"

The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is February (1.54").

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Average rainfall days in August
Joplin, MO

Average rainfall days in August - Joplin, MO
  • Average rainfall days in August: 14.7 days

The month with the highest number of rainy days is May (16.8 days).
Months with the least rainy days are January and December (6.8 days).

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Average snowfall in August
Joplin, MO

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

The month with the highest snowfall is February (2.44").
Months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in August
Joplin, MO

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

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

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

Average daylight in August / Average sunshine in August - Joplin, MO
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in August: 10.5h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is January (Average sunshine: 5.4h).

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Average sunshine days in August
Joplin, MO

Average sunshine days in August - Joplin, MO
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in August
Joplin, MO

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

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in August
Joplin, MO

Average cloud cover in August - Joplin, MO
  • Average cloud cover in August: 25

Months with the most cloud cover are February and March (Cloud cover 45).
Months with the least cloud cover are June, July and August (Cloud cover 25).

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Average visibility in August
Joplin, MO

Average visibility in August - Joplin, MO
  • Average visibility in August: 6mi

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

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