August weather forecast
Shady Grove, IL

Weather in August

August, the last month of the summer in Shady Grove, is also a hot month, with an average temperature ranging between max 87.3°F (30.7°C) and min 67.6°F (19.8°C).

Temperature

In Shady Grove, the average high-temperature in August is almost the same as in July - a still hot 87.3°F (30.7°C). In Shady Grove, in August, the average low-temperature is 67.6°F (19.8°C).

Heat index

In August, the average heat index is evaluated at a very hot 100.4°F (38°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, pregnancy, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception 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 is 75%.

Rainfall

In Shady Grove, Illinois, it is raining for 11.9 days, with typically 1.65" (42mm) of accumulated precipitation. In Shady Grove, during the entire year, the rain falls for 126.4 days and collects up to 16.89" (429mm) of precipitation.

Snowfall

In Shady Grove, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 32min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:25 pm CDT.

Sunshine

The average sunshine in August in Shady Grove 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Shady Grove?

The average high-temperature, in August, in Shady Grove, is 87.3°F (30.7°C), while the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 100.4°F (38°C).

What is the average humidity in August in Shady Grove?

In Shady Grove, the average relative humidity in August is 75%.

How many days does it rain in August in Shady Grove?

In Shady Grove, Illinois, during August, the rain falls for 11.9 days and regularly aggregates up to 1.65" (42mm) of precipitation.

When it does not snow in Shady Grove?

In Shady Grove, Illinois, snow does not fall in April through October.

How many hours of daylight does Shady Grove have in August?

The average day length in August is 13h and 32min.

When is the sunrise / sunset in August in Shady Grove?

In August, on the first day of the month, sunrise is at 5:59 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:25 pm CDT.

How long on average sun shines in August in Shady Grove?

In Shady Grove, Illinois, the average sunshine duration in August is 10.3h.

What is the month with the highest UV index in Shady Grove?

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

How high is the UV index in August in Shady Grove?

In Shady Grove, Illinois, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Shady Grove, IL

Average temperature in August - Shady Grove, IL
  • Average high temperature in August: 87.3°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure in August
Shady Grove, IL

Average pressure in August - Shady Grove, IL
  • 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 (29.95"Hg).

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Average wind speed in August
Shady Grove, IL

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

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

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Average humidity in August
Shady Grove, IL

Average humidity in August - Shady Grove, IL
  • Average humidity in August: 75%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Shady Grove, IL

Average rainfall in August - Shady Grove, IL
  • Average rainfall in August: 1.65"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is September (0.63").

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Average rainfall days in August
Shady Grove, IL

Average rainfall days in August - Shady Grove, IL
  • Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is October (7.6 days).

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Average snowfall in August
Shady Grove, IL

Average snowfall in August - Shady Grove, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.71").
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
Shady Grove, IL

Average snowfall days in August - Shady Grove, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Shady Grove, IL

Average daylight in August / Average sunshine in August - Shady Grove, IL
  • Average daylight in August: 13h and 32min

The month with the longest days is June (Average daylight: 14h and 40min).
The month with the shortest days is December (Average daylight: 9h and 40min).

  • Average sunshine in August: 10h and 18min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Shady Grove, IL

Average sunshine days in August - Shady Grove, IL
  • Average sunshine days in August: 16.8 days

The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (14.2 days).

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Average UV index in August
Shady Grove, IL

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

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Average cloud cover in August
Shady Grove, IL

Average cloud cover in August - Shady Grove, IL
  • Average cloud cover in August: 29

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

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Average visibility in August
Shady Grove, IL

Average visibility in August - Shady Grove, 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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