August weather forecast
Joplin, MO

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

Weather in August

August holds the summer heat steady with slight variations from July. Even though the temperature marginally lowers to a maximum of 87.1°F (30.6°C), there is hardly any significant relief from the summer heat. This drop loosely coincides with a decrease in the duration of daylight and sunshine hours. Despite these changes, the UV index only slightly falls to 6, still presenting intense solar radiation. The balance of heat and sunlight persists, rendering an interesting yet vibrant summer atmosphere.

Temperature

August commences with an average high-temperature of a still tropical 87.1°F (30.6°C), showing little deviation from July's 89.2°F (31.8°C). Throughout August, the temperature in Joplin falls to an average low of 67.6°F (19.8°C).

Heat index

In August, the heat index is evaluated at a fiery hot 98.6°F (37°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. 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. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in August is 72%.

Rainfall

In Joplin, in August, it is raining for 14.7 days, with typically 2.87" (73mm) of accumulated precipitation. In Joplin, during the entire year, the rain falls for 143.4 days and collects up to 32.01" (813mm) of precipitation.

Snowfall

April, June through October are months without snowfall in Joplin.

Daylight

In August, the average length of the day is 13h and 32min.
On the first day of August in Joplin, sunrise is at 6:23 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:47 pm CDT.

Sunshine

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

UV index

In August, the average daily maximum UV index in Joplin is 6. 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 maximum UV index of 6 suggests these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

How hot is 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). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is evaluated at 98.6°F (37°C).

What is the average humidity in August in Joplin?

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

How many days does it rain in August in Joplin?

In August, in Joplin, the rain falls for 14.7 days. Throughout August, 2.87" (73mm) of precipitation is accumulated.

When it does not snow in Joplin?

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

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

The average day length in August is 13h and 32min.

What time are sunrise and sunset in August in Joplin?

On the first day of August in Joplin, Missouri, sunrise is at 6:23 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:47 pm CDT.

How many hours of sunshine does Joplin have in August?

The average sunshine duration in August is 10.5h.

What is the UV index reading in August in Joplin?

In Joplin, Missouri, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
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"Hg

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

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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).
The 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").
The 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).
The 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: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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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

The months with the highest UV index are June and July (UV index 7).
The 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

The months with the most cloud cover are February and March (Cloud cover 45).
The 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

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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Joplin, Missouri, USA

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