August weather forecast
North Barrington, IL

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Weather in August

August, the last month of the summer in North Barrington, is another warm month, with an average temperature fluctuating between 63.5°F (17.5°C) and 79.3°F (26.3°C).

Temperature

The arrival of August sees an average high-temperature of a still moderately hot 79.3°F (26.3°C), hardly diverging from July's 80.6°F (27°C). In August, the temperature drops to an average of 63.5°F (17.5°C) at night.

Humidity

The average relative humidity in August is 78%.

Rainfall

In August, the rain falls for 16.9 days. Throughout August, 3.11" (79mm) of precipitation is accumulated. In North Barrington, during the entire year, the rain falls for 163.1 days and collects up to 32.24" (819mm) of precipitation.

Snowfall

June through September are months without snowfall in North Barrington.

Daylight

In August, the average length of the day is 13h and 50min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:11 pm. On the last day of August, in North Barrington, sunrise is at 6:17 am and sunset at 7:27 pm CDT.

Sunshine

July and August, with an average of 10.1h of sunshine, are months with the most 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 value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Shun overexposure. Protection from sun ravages is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

What are August temperatures?

North Barrington in August has an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 63.5°F (17.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in July is calculated to be 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 78%.

How much does it rain in August?

In August, the rain falls for 16.9 days. Throughout August, 3.11" (79mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does North Barrington have in August?

In August, the average day length is 13h and 50min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:46 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:27 pm CDT.

What is the month with the most sunshine?

July and August, with an average of 10.1h of sunshine, are months with the most sunshine.

How many hours of sunshine does North Barrington have in August?

In North Barrington, the average sunshine duration in August is 10.1h.

When is the highest UV index?

July and 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 North Barrington, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe 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
North Barrington, IL

Average temperature in August - North Barrington, IL
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).

Average pressure in August
North Barrington, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
North Barrington, IL

Average wind speed in August - North Barrington, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
North Barrington, IL

Average humidity in August - North Barrington, IL
  • Average humidity in August: 78%

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

Average rainfall in August
North Barrington, IL

Average rainfall in August - North Barrington, IL
  • Average rainfall in August: 3.11"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in August
North Barrington, IL

Average rainfall days in August - North Barrington, IL
  • Average rainfall days in August: 16.9 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).

Average snowfall in August
North Barrington, IL

Average snowfall in August - North Barrington, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
North Barrington, IL

Average snowfall days in August - North Barrington, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
North Barrington, IL

Average daylight in August / Average sunshine in August - North Barrington, 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 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
North Barrington, IL

Average sunshine days in August - North Barrington, IL
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in August
North Barrington, IL

Average UV index in August - North Barrington, 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).

Average cloud cover in August
North Barrington, IL

Average cloud cover in August - North Barrington, IL
  • Average cloud cover in August: 31

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 31).

Average visibility in August
North Barrington, IL

Average visibility in August - North Barrington, IL
  • Average visibility in August: 6mi

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

North Barrington, Illinois, USA

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