August weather forecast
Maryland Heights, MO

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Weather in August

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

Temperature

Maryland Heights records an average high-temperature of a moderately hot 85.5°F (29.7°C) as August arrives, nearly mirroring the previous month's climate. In the month of August, the temperature generally rests at an average low of 67.1°F (19.5°C).

Heat index

For most parts of August, the heat index is estimated at a sweltering 95°F (35°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in August is 74%.

Rainfall

In Maryland Heights, in August, during 13.2 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Maryland Heights, Missouri, during the entire year, the rain falls for 141.9 days and collects up to 27.68" (703mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in August in Maryland Heights is 13h and 38min.
On the first day of August, 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

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

How hot does it get in Maryland Heights in August?

The high-temperature, in August, in Maryland Heights, 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. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 95°F (35°C).

What is the average humidity in August in Maryland Heights?

In August, the average relative humidity in Maryland Heights, Missouri, is 74%.

How much does it rain in Maryland Heights in August?

In Maryland Heights, Missouri, in August, it is raining for 13.2 days, with typically 2.95" (75mm) of accumulated precipitation.

When it does not snow in Maryland Heights?

April through October are months without snowfall in Maryland Heights.

How many hours of daylight does Maryland Heights have in August?

In Maryland Heights, the average day length in August is 13h and 38min.

When are sunrise and sunset in August in Maryland Heights?

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 Maryland Heights, Missouri, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Maryland Heights have in August?

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

When is the highest UV index in Maryland Heights?

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

What is the UV index reading in August in Maryland Heights?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Maryland Heights, MO

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

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Maryland Heights, MO

Average pressure in August - Maryland Heights, MO
  • Average pressure in August: 29.97"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
Maryland Heights, MO

Average wind speed in August - Maryland Heights, MO
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average humidity in August
Maryland Heights, MO

Average humidity in August - Maryland Heights, MO
  • Average humidity in August: 74%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Maryland Heights, MO

Average rainfall in August - Maryland Heights, MO
  • Average rainfall in August: 2.95"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").

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Average rainfall days in August
Maryland Heights, MO

Average rainfall days in August - Maryland Heights, MO
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).

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Average snowfall in August
Maryland Heights, MO

Average snowfall in August - Maryland Heights, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.05").
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
Maryland Heights, MO

Average snowfall days in August - Maryland Heights, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.8 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
Maryland Heights, MO

Average daylight in August / Average sunshine in August - Maryland Heights, 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 month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Maryland Heights, MO

Average sunshine days in August - Maryland Heights, MO
  • Average sunshine days in August: 13.4 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in August
Maryland Heights, MO

Average UV index in August - Maryland Heights, 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
Maryland Heights, MO

Average cloud cover in August - Maryland Heights, 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
Maryland Heights, MO

Average visibility in August - Maryland Heights, 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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Maryland Heights, Missouri, USA

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