August weather forecast
Creve Coeur, MO

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Weather in August

August persists with July's high temperatures forming the height of summer in Creve Coeur. Yet, towards the end of August, the heat slowly starts to relent, signaling the impending arrival of fall. Rainfall, though marginally lower from July, is still present regularly throughout the month. Meanwhile, daylight hours begin to decrease, hinting at the slow but inevitable transition towards the shorter days of autumn. Residents can expect high levels of humidity, almost reminiscent of July.

Temperature

Creve Coeur measures an average high-temperature of a moderately hot 85.5°F (29.7°C) in August, nearly consistent with the preceding month. In Creve Coeur, August nights cool down to an average of 67.1°F (19.5°C).

Heat index

The heat index for August is estimated at a torrid 95°F (35°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Creve Coeur, Missouri, the average relative humidity in August is 75%.

Rainfall

In Creve Coeur, during August, the rain falls for 14.2 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 37min.
On the first day of August in Creve Coeur, sunrise is at 6:03 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Creve Coeur. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

How hot is it in Creve Coeur in August?

The high-temperature, in August, in Creve Coeur, records 85.5°F (29.7°C), while the low-temperature is 67.1°F (19.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is estimated at 95°F (35°C).

What is the average humidity in August in Creve Coeur?

The average relative humidity in August in Creve Coeur, Missouri, is 75%.

How many days does it rain in August in Creve Coeur?

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

When it does not snow in Creve Coeur?

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

What is the average length of the day in August in Creve Coeur?

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

What time are sunrise and sunset in August in Creve Coeur?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:12 pm. On the last day of the month, in Creve Coeur, Missouri, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Creve Coeur have in August?

The average sunshine duration in August is 10.3h.

What are the months with the highest UV index in Creve Coeur?

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

What is the UV index reading in August in Creve Coeur?

In August, the average daily maximum UV index in Creve Coeur is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Creve Coeur, MO

Average temperature in August - Creve Coeur, 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).

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Average pressure in August
Creve Coeur, MO

Average pressure in August - Creve Coeur, 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).

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Average wind speed in August
Creve Coeur, MO

Average wind speed in August - Creve Coeur, 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).

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Average humidity in August
Creve Coeur, MO

Average humidity in August - Creve Coeur, 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%).

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Average rainfall in August
Creve Coeur, MO

Average rainfall in August - Creve Coeur, 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").

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Average rainfall days in August
Creve Coeur, MO

Average rainfall days in August - Creve Coeur, 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).

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Average snowfall in August
Creve Coeur, MO

Average snowfall in August - Creve Coeur, 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").

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Average snowfall days in August
Creve Coeur, MO

Average snowfall days in August - Creve Coeur, 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).

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Average daylight in August /
Average sunshine in August
Creve Coeur, MO

Average daylight in August / Average sunshine in August - Creve Coeur, 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).

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Average sunshine days in August
Creve Coeur, MO

Average sunshine days in August - Creve Coeur, 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).

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Average UV index in August
Creve Coeur, MO

Average UV index in August - Creve Coeur, 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).

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Average cloud cover in August
Creve Coeur, MO

Average cloud cover in August - Creve Coeur, 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).

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Average visibility in August
Creve Coeur, MO

Average visibility in August - Creve Coeur, 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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Creve Coeur, Missouri, USA

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