August weather forecast
Grandwood Park, IL

Share

Weather in August

The last month of the summer, August, is another warm month in Grandwood Park, Illinois, with an average temperature varying between 63.1°F (17.3°C) and 78.6°F (25.9°C).

Temperature

August welcomes an average high-temperature of a still moderately hot 78.6°F (25.9°C), not much different from the preceding month. An average low-temperature of 63.1°F (17.3°C) is observed during the August nights.

Humidity

In Grandwood Park, the average relative humidity in August is 79%.

Rainfall

In Grandwood Park, in August, it is raining for 16 days, with typically 2.64" (67mm) of accumulated precipitation. In Grandwood Park, during the entire year, the rain falls for 142.3 days and collects up to 21.97" (558mm) of precipitation.

Snowfall

In Grandwood Park, snow does not fall in June through September.

Daylight

In Grandwood Park, the average length of the day in August is 13h and 51min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:11 pm. On the last day of August, in Grandwood Park, sunrise is at 6:16 am and sunset at 7:27 pm CDT.

Sunshine

The month with the most sunshine in Grandwood Park, Illinois, is August, with an average of 10.2h of sunshine.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
[Resources]

Frequently asked questions

What is the usual temperature for Grandwood Park in August?

In Grandwood Park, 78.6°F (25.9°C) is the average high-temperature and 63.1°F (17.3°C) is the average low-temperature during August.

What is the average humidity in August in Grandwood Park?

The average relative humidity in August in Grandwood Park, Illinois, is 79%.

How many days does it rain in August in Grandwood Park?

In Grandwood Park, in August, during 16 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

When it does not snow in Grandwood Park?

In Grandwood Park, Illinois, snow does not fall in June through September.

What is the average length of the day in August in Grandwood Park?

In Grandwood Park, Illinois, the average day length in August is 13h and 51min.

When are sunrise and sunset in August in Grandwood Park?

On the first day of August, sunrise is at 5:45 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:27 pm CDT.

What month has the most sunshine in Grandwood Park?

August has the most sunshine of the year in Grandwood Park, with an average of 10.2h of sunshine.

How long on average sun shines in August in Grandwood Park?

The average sunshine duration in August in Grandwood Park is 10.2h.

What are the months with the highest UV index in Grandwood Park?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Grandwood Park.

How high is the UV index in August in Grandwood Park?

In August, the average daily maximum UV index in Grandwood Park, Illinois, is 6. A UV Index estimate 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
Grandwood Park, IL

Average temperature in August - Grandwood Park, IL
  • Average high temperature in August: 78.6°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

[Resources]

Average pressure in August
Grandwood Park, IL

Average pressure in August - Grandwood Park, IL
  • Average pressure in August: 29.98"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in August
Grandwood Park, IL

Average wind speed in August - Grandwood Park, IL
  • Average wind speed in August: 6.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

[Resources]

Average humidity in August
Grandwood Park, IL

Average humidity in August - Grandwood Park, IL
  • Average humidity in August: 79%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

[Resources]

Average rainfall in August
Grandwood Park, IL

Average rainfall in August - Grandwood Park, IL
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is December (0.98").

[Resources]

Average rainfall days in August
Grandwood Park, IL

Average rainfall days in August - Grandwood Park, IL
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5 days).

[Resources]

Average snowfall in August
Grandwood Park, IL

Average snowfall in August - Grandwood Park, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in August
Grandwood Park, IL

Average snowfall days in August - Grandwood Park, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Grandwood Park, IL

Average daylight in August / Average sunshine in August - Grandwood Park, IL
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in August
Grandwood Park, IL

Average sunshine days in August - Grandwood Park, IL
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (10.8 days).

[Resources]

Average UV index in August
Grandwood Park, IL

Average UV index in August - Grandwood Park, IL
  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

[Resources]

Average cloud cover in August
Grandwood Park, IL

Average cloud cover in August - Grandwood Park, IL
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 30).

[Resources]

Average visibility in August
Grandwood Park, IL

Average visibility in August - Grandwood Park, IL
  • Average visibility in August: 6mi

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

[Resources]

Grandwood Park, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location