August weather forecast
Maryville, MO

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Weather in August

August, the last month of the summer in Maryville, is also a moderately hot month, with an average temperature ranging between min 64°F (17.8°C) and max 82.6°F (28.1°C).

Temperature

Maryville's transition from July to August introduces an average high-temperature of a still warm 82.6°F (28.1°C), marking an insignificant variation from the 84.7°F (29.3°C). Nighttime temperatures in Maryville, Missouri, hover around an average low of 64°F (17.8°C) in August.

Heat index

In August, the average heat index is estimated at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Maryville, Missouri, in August, during 14.2 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, in Maryville, there are 130.5 rainfall days, and 25.79" (655mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Maryville.

Daylight

In August, the average length of the day in Maryville is 13h and 43min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:33 pm. On the last day of August, sunrise is at 6:46 am and sunset at 7:52 pm CDT.

Sunshine

In August, the average sunshine is 10h.

UV index

The months with the highest UV index in Maryville, Missouri, are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Maryville?

An average high-temperature, in August, in Maryville, is 82.6°F (28.1°C) and the average low-temperature is 64°F (17.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 89.6°F (32°C).

What is the average humidity in August in Maryville?

In Maryville, the average relative humidity in August is 79%.

How many days does it rain in August in Maryville?

In Maryville, during August, the rain falls for 14.2 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow in Maryville?

In Maryville, snow does not fall in June through September.

How many hours of daylight does Maryville have in August?

The average day length in August in Maryville, Missouri, is 13h and 43min.

When are sunrise and sunset in August in Maryville?

On the first day of August, sunrise is at 6:17 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:52 pm CDT.

How long on average sun shines in August in Maryville?

The average sunshine duration in August in Maryville, Missouri, is 10h.

What are the months with the highest UV index in Maryville?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Maryville.

What is the UV index intensity in August in Maryville?

The average daily maximum UV index in August in Maryville is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's 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
Maryville, MO

Average temperature in August - Maryville, MO
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in August
Maryville, MO

Average pressure in August - Maryville, MO
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Maryville, MO

Average wind speed in August - Maryville, MO
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in August
Maryville, MO

Average humidity in August - Maryville, MO
  • Average humidity in August: 79%

The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in August
Maryville, MO

Average rainfall in August - Maryville, MO
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is February (0.83").

Average rainfall days in August
Maryville, MO

Average rainfall days in August - Maryville, MO
  • Average rainfall days in August: 14.2 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in August
Maryville, MO

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

The month with the highest snowfall is January (3.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Maryville, MO

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

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Maryville, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in August
Maryville, MO

Average sunshine days in August - Maryville, MO
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in August
Maryville, MO

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Maryville, MO

Average cloud cover in August - Maryville, MO
  • Average cloud cover in August: 29

The months with the most cloud cover are January and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in August
Maryville, MO

Average visibility in August - Maryville, 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).

Maryville, Missouri, USA

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