August weather forecast
Cottage Hills, IL

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Weather in August

August, the last month of the summer in Cottage Hills, is also a moderately hot month, with an average temperature fluctuating between 65.7°F (18.7°C) and 84°F (28.9°C).

Temperature

The beginning of August records an average high-temperature of a still moderately hot 84°F (28.9°C), marking a negligible difference from July's 85.3°F (29.6°C). Throughout August, the average low-temperature in Cottage Hills, Illinois, records at an enjoyable 65.7°F (18.7°C).

Heat index

The heat index value for August is evaluated at a hot 93.2°F (34°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one'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 extremely significant for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Cottage Hills, in August, during 14.3 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Cottage Hills, during the entire year, the rain falls for 138 days and collects up to 23.9" (607mm) of precipitation.

Snowfall

In Cottage Hills, snow does not fall in May through October.

Daylight

In Cottage Hills, the average length of the day in August is 13h and 38min.
On the first day of August in Cottage Hills, sunrise is at 6:02 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:31 pm CDT.

Sunshine

In August, the average sunshine is 10h.

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 threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is it in Cottage Hills in August?

The high-temperature, in August, in Cottage Hills, records 84°F (28.9°C), while the low-temperature is 65.7°F (18.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 93.2°F (34°C).

What is the average humidity in August in Cottage Hills?

In Cottage Hills, the average relative humidity in August is 79%.

How much does it rain in Cottage Hills in August?

In August, in Cottage Hills, the rain falls for 14.3 days. Throughout August, 2.91" (74mm) of precipitation is accumulated.

When it does not snow in Cottage Hills?

In Cottage Hills, Illinois, snow does not fall in May through October.

What is the average length of the day in August in Cottage Hills?

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

When are sunrise and sunset in August in Cottage Hills?

On the first day of August in Cottage Hills, sunrise is at 6:02 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:31 pm CDT.

How long on average sun shines in August in Cottage Hills?

The average sunshine duration in August in Cottage Hills is 10h.

When is the highest UV index in Cottage Hills?

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

What is the UV index intensity in August in Cottage Hills?

In Cottage Hills, Illinois, 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 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
Cottage Hills, IL

Average temperature in August - Cottage Hills, IL
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 65.7°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in August
Cottage Hills, IL

Average pressure in August - Cottage Hills, IL
  • 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
Cottage Hills, IL

Average wind speed in August - Cottage Hills, IL
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in August
Cottage Hills, IL

Average humidity in August - Cottage Hills, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Cottage Hills, IL

Average rainfall in August - Cottage Hills, IL
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days in August
Cottage Hills, IL

Average rainfall days in August - Cottage Hills, IL
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in August
Cottage Hills, IL

Average snowfall in August - Cottage Hills, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Cottage Hills, IL

Average snowfall days in August - Cottage Hills, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6 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
Cottage Hills, IL

Average daylight in August / Average sunshine in August - Cottage Hills, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 0min

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

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Average sunshine days in August
Cottage Hills, IL

Average sunshine days in August - Cottage Hills, IL
  • Average sunshine days in August: 14 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in August
Cottage Hills, IL

Average UV index in August - Cottage Hills, IL
  • 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, November and December (UV index 2).

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Average cloud cover in August
Cottage Hills, IL

Average cloud cover in August - Cottage Hills, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).

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Average visibility in August
Cottage Hills, IL

Average visibility in August - Cottage Hills, IL
  • 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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Cottage Hills, Illinois, USA

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