August weather forecast
Brentwood, MO

Share

Weather in August

August, the last month of the summer in Brentwood, is another warm month, with an average temperature fluctuating between 85.5°F (29.7°C) and 67.1°F (19.5°C).

Temperature

Brentwood's weather in August indicates an average high-temperature of a warm 85.5°F (29.7°C), nearly consistent with the 86.9°F (30.5°C) of July. An average low-temperature of 67.1°F (19.5°C) marks the nights in Brentwood throughout August.

Heat index

During August, the heat index is computed to be a fiery hot 95°F (35°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Brentwood, the average relative humidity in August is 75%.

Rainfall

In Brentwood, in August, during 14.2 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Brentwood, during the entire year, the rain falls for 144.8 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Brentwood is 13h and 37min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

Sunshine

The average sunshine in August in Brentwood is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Brentwood in August?

The high-temperature, in August, in Brentwood, is 85.5°F (29.7°C), while the low-temperature averages to 67.1°F (19.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 95°F (35°C).

What is the average humidity in August in Brentwood?

In August, the average relative humidity in Brentwood is 75%.

How many days does it rain in August in Brentwood?

In Brentwood, in August, it is raining for 14.2 days, with typically 3.31" (84mm) of accumulated precipitation.

When it does not snow in Brentwood?

In Brentwood, Missouri, snow does not fall in April through October.

How many hours of daylight does Brentwood have in August?

In Brentwood, Missouri, the average day length in August is 13h and 37min.

What time are sunrise and sunset in August in Brentwood?

On the first day of August in Brentwood, Missouri, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

How long on average sun shines in August in Brentwood?

In Brentwood, Missouri, the average sunshine duration in August is 10.3h.

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

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

What is the UV index intensity in August in Brentwood?

In Brentwood, 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
Brentwood, MO

Average temperature in August - Brentwood, MO
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in August
Brentwood, MO

Average pressure in August - Brentwood, MO
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Brentwood, MO

Average wind speed in August - Brentwood, MO
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in August
Brentwood, MO

Average humidity in August - Brentwood, MO
  • Average humidity in August: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Brentwood, MO

Average rainfall in August - Brentwood, MO
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in August
Brentwood, MO

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

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in August
Brentwood, MO

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

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Brentwood, MO

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

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in August
Brentwood, MO

Average sunshine days in August - Brentwood, MO
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in August
Brentwood, MO

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in August
Brentwood, MO

Average cloud cover in August - Brentwood, MO
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Brentwood, MO

Average visibility in August - Brentwood, 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).

Brentwood, Missouri, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location