July weather forecast
South Barrington, IL

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Weather in July

July, like June, in South Barrington, Illinois, is another warm summer month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 81.7°F (27.6°C).

Temperature

During the warmest month, July, temperatures average a high of 81.7°F (27.6°C) and a low of 65.7°F (18.7°C).

Heat index

July's average heat index is appraised at a tropical 87.8°F (31°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

In July, the average relative humidity in South Barrington is 77%.

Rainfall

In South Barrington, in July, it is raining for 17.7 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 145.9 rainfall days, and 24.72" (628mm) of precipitation is accumulated.

Snowfall

In South Barrington, snow does not fall in June through September.

Daylight

In South Barrington, the average length of the day in July is 14h and 53min.
On the first day of July, sunrise is at 5:20 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:12 pm CDT.

Sunshine

The month with the most sunshine is July, with an average of 9.9h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

South Barrington notes the warmest temperatures in July, with a average high of 81.7°F (27.6°C) and a low of 65.7°F (18.7°C).

What are July temperatures in South Barrington?

The high-temperature during July is 81.7°F (27.6°C) and the low-temperature is 65.7°F (18.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in July is appraised at 87.8°F (31°C).

What is the average humidity in July?

In South Barrington, the average relative humidity in July is 77%.

How much does it rain in July?

In South Barrington, during July, the rain falls for 17.7 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July?

The average day length in July is 14h and 53min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:12 pm CDT.

What month has the most sunshine?

The month with the most sunshine in South Barrington is July, with an average of 9.9h of sunshine.

How long on average sun shines in July?

The average sunshine duration in July is 9.9h.

When is the highest UV index?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents 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 July
South Barrington, IL

Average temperature in July - South Barrington, IL
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in July: 65.7°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in July
South Barrington, IL

Average pressure in July - South Barrington, IL
  • Average pressure in July: 29.97"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 July
South Barrington, IL

Average wind speed in July - South Barrington, IL
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in July
South Barrington, IL

Average humidity in July - South Barrington, IL
  • Average humidity in July: 77%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in July
South Barrington, IL

Average rainfall in July - South Barrington, IL
  • Average rainfall in July: 2.72"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.14").

Average rainfall days in July
South Barrington, IL

Average rainfall days in July - South Barrington, IL
  • Average rainfall days in July: 17.7 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in July
South Barrington, IL

Average snowfall in July - South Barrington, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
South Barrington, IL

Average snowfall days in July - South Barrington, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
South Barrington, IL

Average daylight in July / Average sunshine in July - South Barrington, IL
  • Average daylight in July: 14h 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 July: 9h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in July
South Barrington, IL

Average sunshine days in July - South Barrington, IL
  • Average sunshine days in July: 10.4 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in July
South Barrington, IL

Average UV index in July - South Barrington, IL
  • Average UV index in July: 6

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

Average cloud cover in July
South Barrington, IL

Average cloud cover in July - South Barrington, IL
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 32).

Average visibility in July
South Barrington, IL

Average visibility in July - South Barrington, IL
  • Average visibility in July: 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).

South Barrington, Illinois, USA

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