August weather forecast
Mehlville, MO

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Weather in August

August brings a slight mellowing of the summer's intensity in Mehlville, although it remains reasonably hot. The rainfall continues to subside, balancing the warm weather with much-needed moisture. With ample sunlight gracing the town, outdoor activities are still quite a favorite. Interestingly, despite a slight decrease in temperature, the recorded average minimum temperature remains high at 66.9°F (19.4°C). The wind, calm and gentle, perfectly complements the weather, making August a pleasurable end to the summer.

Temperature

On the advent of August, Mehlville's average high-temperature exhibits a minor adjustment to a moderately hot 85.6°F (29.8°C) from July's 86.9°F (30.5°C). The nighttime temperature in Mehlville, during August, averages of 66.9°F (19.4°C).

Heat index

The heat index value for August is calculated to be a torrid 96.8°F (36°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in August in Mehlville is 75%.

Rainfall

In Mehlville, in August, it is raining for 14.1 days, with typically 3.39" (86mm) of accumulated precipitation. In Mehlville, Missouri, during the entire year, the rain falls for 146.1 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day 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 Mehlville, Missouri, is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

How hot is it in Mehlville in August?

The high-temperature, in August, in Mehlville, is 85.6°F (29.8°C), while the low-temperature averages to 66.9°F (19.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 96.8°F (36°C).

What is the average humidity in August in Mehlville?

The average relative humidity in August in Mehlville is 75%.

How much does it rain in Mehlville in August?

In Mehlville, during August, the rain falls for 14.1 days and regularly aggregates up to 3.39" (86mm) of precipitation.

When it does not snow in Mehlville?

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

How many hours of daylight does Mehlville have in August?

The average day length in August in Mehlville is 13h and 37min.

What time are sunrise and sunset in August in Mehlville?

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

How long on average sun shines in August in Mehlville?

In August, the average sunshine duration in Mehlville is 10.2h.

What is the month with the highest UV index in Mehlville?

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

What is the UV index intensity in August in Mehlville?

In Mehlville, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Mehlville, MO

Average temperature in August - Mehlville, MO
  • Average high temperature in August: 85.6°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 (37.9°F).

  • Average low temperature in August: 66.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in August
Mehlville, MO

Average pressure in August - Mehlville, 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
Mehlville, MO

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

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in August
Mehlville, MO

Average humidity in August - Mehlville, 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 (71%).

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Average rainfall in August
Mehlville, MO

Average rainfall in August - Mehlville, MO
  • Average rainfall in August: 3.39"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").

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Average rainfall days in August
Mehlville, MO

Average rainfall days in August - Mehlville, MO
  • Average rainfall days in August: 14.1 days

The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall in August
Mehlville, MO

Average snowfall in August - Mehlville, 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
Mehlville, MO

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

The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Mehlville, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in August
Mehlville, MO

Average sunshine days in August - Mehlville, MO
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in August
Mehlville, MO

Average UV index in August - Mehlville, 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
Mehlville, MO

Average cloud cover in August - Mehlville, MO
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Mehlville, MO

Average visibility in August - Mehlville, 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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Mehlville, Missouri, USA

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