August weather forecast
Bannockburn, IL

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Bannockburn, Illinois, with an average temperature fluctuating between 66.7°F (19.3°C) and 77.5°F (25.3°C).

Temperature

With August's arrival, Bannockburn's weather records an average high-temperature of a still warm 77.5°F (25.3°C), marking little difference from July's 77.7°F (25.4°C). The nighttime temperature dips to an enjoyable 66.7°F (19.3°C) on average during August.

Humidity

In Bannockburn, the average relative humidity in August is 76%.

Rainfall

In Bannockburn, during August, the rain falls for 15.8 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Bannockburn, during the entire year, the rain falls for 154.1 days and collects up to 30.24" (768mm) of precipitation.

Snowfall

In Bannockburn, snow does not fall in May through September.

Daylight

In Bannockburn, the average length of the day in August is 13h and 50min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:26 pm CDT.

Sunshine

With an average of 10.7h of sunshine, August has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Bannockburn, records 77.5°F (25.3°C), while the low-temperature is 66.7°F (19.3°C).

What is the average humidity in August?

The average relative humidity in August is 76%.

How much does it rain in August?

In Bannockburn, in August, during 15.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

When it does not snow?

In Bannockburn, snow does not fall in May through September.

What is the average length of the day in August?

The average day length in August is 13h and 50min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:45 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:26 pm CDT.

What month has the most sunshine?

With an average of 10.7h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

In Bannockburn, the average sunshine duration in August is 10.7h.

When is the highest UV index?

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

What is the UV index reading in August in Bannockburn?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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
Bannockburn, IL

Average temperature in August - Bannockburn, IL
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in August: 66.7°F

The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Bannockburn, IL

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

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

Average wind speed in August
Bannockburn, IL

Average wind speed in August - Bannockburn, IL
  • Average wind speed in August: 7.4mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

Average humidity in August
Bannockburn, IL

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

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Bannockburn, IL

Average rainfall in August - Bannockburn, IL
  • Average rainfall in August: 3.07"

The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").

Average rainfall days in August
Bannockburn, IL

Average rainfall days in August - Bannockburn, IL
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in August
Bannockburn, IL

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

The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Bannockburn, IL

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

The month with the highest number of snowfall days is January (11.9 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
Bannockburn, IL

Average daylight in August / Average sunshine in August - Bannockburn, 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 12min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Bannockburn, IL

Average sunshine days in August - Bannockburn, IL
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).

Average UV index in August
Bannockburn, IL

Average UV index in August - Bannockburn, IL
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Bannockburn, IL

Average cloud cover in August - Bannockburn, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in August
Bannockburn, IL

Average visibility in August - Bannockburn, 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).

Bannockburn, Illinois, USA

Weather forecast for your location

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