August weather forecast
Sundown, MO

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Weather in August

The last month of the summer, August, is also a hot month in Sundown, Missouri, with an average temperature fluctuating between 66.7°F (19.3°C) and 89.8°F (32.1°C).

Temperature

Sundown experiences a transition to a still tropical 89.8°F (32.1°C) in average high-temperatures with the arrival of August, not greatly differing from July's 90.9°F (32.7°C). The August nights bear witness to a significant drop from the daytime highs, settling at an average temperature of 66.7°F (19.3°C).

Heat index

August's heat index is evaluated at a blisteringly hot 107.6°F (42°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. 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.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The months with the lowest humidity are July, August and October, with an average relative humidity of 73%.

Rainfall

In Sundown, during August, the rain falls for 13.8 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Sundown, during the entire year, the rain falls for 136.4 days and collects up to 30.98" (787mm) of precipitation.

Snowfall

April through October are months without snowfall in Sundown.

Daylight

In Sundown, the average length of the day in August is 13h and 31min.
On the first day of August, sunrise is at 6:17 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:39 pm CDT.

Sunshine

In August, the average sunshine is 10.1h.

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 exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, the average high-temperature and low-temperature in Sundown, Missouri, are 89.8°F (32.1°C) and 66.7°F (19.3°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 107.6°F (42°C).

What are the least humid months?

The months with the lowest humidity are July, August and October, with an average relative humidity of 73%.

What is the average humidity in August?

In Sundown, the average relative humidity in August is 73%.

How much does it rain in August?

In Sundown, in August, it is raining for 13.8 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Sundown have in August?

In Sundown, the average day length in August is 13h and 31min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:39 pm CDT.

How many hours of sunshine does Sundown have in August?

In Sundown, the average sunshine duration in August is 10.1h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average max. wind speed
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
Sundown, MO

Average temperature in August - Sundown, MO
  • Average high temperature in August: 89.8°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

Average pressure in August
Sundown, MO

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Sundown, MO

Average wind speed in August - Sundown, MO
  • Average wind speed in August: 4.5mph

The windiest months (with the highest average wind speed) are January, February, March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in August
Sundown, MO

Average humidity in August - Sundown, MO
  • Average humidity in August: 73%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July, August and October (73%).

Average rainfall in August
Sundown, MO

Average rainfall in August - Sundown, MO
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in August
Sundown, MO

Average rainfall days in August - Sundown, MO
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in August
Sundown, MO

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

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Sundown, MO

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

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Sundown, MO
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in August
Sundown, MO

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

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in August
Sundown, MO

Average UV index in August - Sundown, 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
Sundown, MO

Average cloud cover in August - Sundown, MO
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 30).

Average visibility in August
Sundown, MO

Average visibility in August - Sundown, MO
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, October, November and December (6mi).
The months with the lowest visibility are April, May, June, July, August and September (5mi).

Sundown, Missouri, USA

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