August weather forecast
Perks, IL

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Weather in August

The last month of the summer, August, is another hot month in Perks, Illinois, with an average temperature varying between 66.7°F (19.3°C) and 86.5°F (30.3°C).

Temperature

In Perks, August's average high-temperature stands at a still hot 86.5°F (30.3°C), closely related to the preceding month. Perks's temperature in August lowers to a consistent average of 66.7°F (19.3°C) during the nights.

Heat index

For August, the heat index is calculated to be a fiery hot 98.6°F (37°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in August is 76%.

Rainfall

In Perks, in August, it is raining for 11.9 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, in Perks, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:26 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 vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

The high-temperature, in August, in Perks, records 86.5°F (30.3°C), while the low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 98.6°F (37°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How many days does it rain in August?

In Perks, during August, the rain falls for 11.9 days and regularly aggregates up to 1.3" (33mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 33min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:26 pm CDT.

How many hours of sunshine does Perks have in August?

The average sunshine duration in August is 10.3h.

What are the months with the highest UV index in Perks?

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

What is the UV index reading in August?

In Perks, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
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
Perks, IL

Average temperature in August - Perks, IL
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in August
Perks, IL

Average pressure in August - Perks, 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 (29.94"Hg).

Average wind speed in August
Perks, IL

Average wind speed in August - Perks, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Perks, IL

Average humidity in August - Perks, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Perks, IL

Average rainfall in August - Perks, IL
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in August
Perks, IL

Average rainfall days in August - Perks, IL
  • Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

Average snowfall in August
Perks, IL

Average snowfall in August - Perks, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Perks, IL

Average snowfall days in August - Perks, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.3 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
Perks, IL

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

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

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in August
Perks, IL

Average sunshine days in August - Perks, IL
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in August
Perks, IL

Average UV index in August - Perks, 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 and December (UV index 2).

Average cloud cover in August
Perks, IL

Average cloud cover in August - Perks, IL
  • Average cloud cover in August: 30

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in August
Perks, IL

Average visibility in August - Perks, 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).

Perks, Illinois, USA

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