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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in South Barrington, Illinois, is a freezing cold winter month, with an average temperature ranging between max 27.9°F (-2.3°C) and min 16.5°F (-8.6°C). With average temperatures fluctuating between a high of 27.9°F (-2.3°C) and a low of 16.5°F (-8.6°C), January stands out as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in South Barrington, Illinois, with an average temperature ranging between min 19.4°F (-7°C) and max 31.5°F (-0.3°C). South Barrington commences February with an average high-temperature of a still freezing cold 31.5°F (-0.3°C), maintaining a close resemblance to the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in South Barrington, Illinois, with an average temperature varying between 30.7°F (-0.7°C) and 44.1°F (6.7°C). The arrival of March brings an increase in high-temperatures, moving from a freezing cold 31.5°F (-0.3°C) in February to a chilly 44.1°F (6.7°C). Weather in March »
Weather in April
April is a refreshing spring month in South Barrington, Illinois, with temperature in the range of an average high of 55.6°F (13.1°C) and an average low of 39.9°F (4.4°C). April brings a rise in the average high-temperature, transitioning from March's chilly 44.1°F (6.7°C) to a refreshing 55.6°F (13.1°C). Weather in April »
Weather in May
May, the last month of the spring in South Barrington, is an enjoyable month, with an average temperature fluctuating between 67.5°F (19.7°C) and 51.3°F (10.7°C). South Barrington in May experiences an increase in the average high-temperature, moving from April's mild 55.6°F (13.1°C) to a still refreshing 67.5°F (19.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in South Barrington, Illinois, with an average temperature fluctuating between 60.4°F (15.8°C) and 76.8°F (24.9°C). The shift into June is marked by a rise in the average high-temperature, moving from May's enjoyable 67.5°F (19.7°C) to a moderately hot 76.8°F (24.9°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in South Barrington, Illinois, with an average temperature varying between 65.7°F (18.7°C) and 81.7°F (27.6°C). July is the warmest month, with the temperature often reaching an average high of 81.7°F (27.6°C) and an average low of 65.7°F (18.7°C). Throughout July, the heat index is computed to be a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in South Barrington, is also a moderately hot month, with an average temperature varying between 64.2°F (17.9°C) and 80.1°F (26.7°C). The arrival of August brings an average high-temperature of a still moderately hot 80.1°F (26.7°C), subtly diverging from July's 81.7°F (27.6°C). Weather in August »
Weather in September
September, the first month of the autumn in South Barrington, is also a moderately hot month, with an average temperature varying between 57.6°F (14.2°C) and 73.4°F (23°C). With the onset of September, South Barrington's average high-temperature slightly adjusts, moderately receding from August's 80.1°F (26.7°C) to a still warm 73.4°F (23°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in South Barrington, Illinois, with an average temperature ranging between min 45.5°F (7.5°C) and max 60.1°F (15.6°C). Stepping into October, South Barrington observes a temperature decline, with the average high falling from September's moderately hot 73.4°F (23°C) to a moderate 60.1°F (15.6°C). Weather in October »
Weather in November
November, the last month of the autumn in South Barrington, is another chilly month, with an average temperature varying between 33.1°F (0.6°C) and 45.5°F (7.5°C). Witnessing a clear drop in November, the average high-temperature declines from October's moderate 60.1°F (15.6°C) to a chilly 45.5°F (7.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in South Barrington, Illinois, with an average temperature varying between 23.9°F (-4.5°C) and 34°F (1.1°C). The commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 45.5°F (7.5°C) in November to an icy 34°F (1.1°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in South Barrington?
In South Barrington, January registers the lowest temperatures, averaging 27.9°F (-2.3°C) at the peak and 16.5°F (-8.6°C) at the lowest.
What is the most humid month in South Barrington?
The months with the highest humidity in South Barrington are January and February, with an average relative humidity of 83%.
How much does it rain in South Barrington?
In South Barrington, during the entire year, the rain falls for 145.9 days and collects up to 24.72" (628mm) of precipitation.
When does it snow in South Barrington?
Months with snowfall in South Barrington are January through May, October through December.
How many days does it snow in South Barrington?
In South Barrington, during the entire year, snow falls for 47.6 days and aggregates up to 15.83" (402mm) of snow.
What is the month with the least sunshine in South Barrington?
January has the least sunshine of the year, with an average of 3.6h of sunshine.
What are the months with the lowest UV index in South Barrington?
The months with the lowest UV index in South Barrington, Illinois, are January and December, with an average maximum UV index of 1.
When does it snow the most in South Barrington?
February is the month with the most snowfall in South Barrington. Snow falls for 11 days and accumulates 4.21" (107mm) of snow.
When is Daylight Saving Time (DST) in South Barrington?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month in South Barrington?
May is the month with the most rainfall in South Barrington. Rain falls for 17.5 days and accumulates 3.07" (78mm) of precipitation.
When it does not snow in South Barrington?
June through September are months without snowfall.
When are the longest days in South Barrington?
June has the longest days of the year in South Barrington, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in South Barrington?
June through August, with an average maximum UV index of 6, are months with the highest UV index in South Barrington, Illinois.
What time of the year is the hottest in South Barrington?
South Barrington's warmest month, July, registers temperatures that range from a high of 81.7°F (27.6°C) to a low of 65.7°F (18.7°C).
What month has the most sunshine in South Barrington?
The month with the most sunshine is July, with an average of 9.9h of sunshine.
What is the least humid month in South Barrington?
With an average relative humidity of 73%, October is the least humid month in South Barrington.
What is the driest month in South Barrington?
December is the month with the least rainfall. Rain falls for 7.8 days and accumulates 1.14" (29mm) of precipitation.
What is the month with the shortest days in South Barrington?
The month with the shortest days in South Barrington is December, with an average of 9h and 12min of daylight.
Average temperature
South Barrington, IL
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).
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
South Barrington, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"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
South Barrington, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.2mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.1mph
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
South Barrington, IL
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall
South Barrington, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.46" - Average rainfall in March:
1.46" - Average rainfall in April:
2.87" - Average rainfall in May:
3.07" - Average rainfall in June:
2.83"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.72" - Average rainfall in September:
1.69" - Average rainfall in October:
2.13" - Average rainfall in November:
1.26" - Average rainfall in December:
1.14"
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
South Barrington, IL
- Average rainfall days in January:
6 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
17.7 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
7.8 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
South Barrington, IL
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
South Barrington, IL
- Average snowfall days in January:
12.7 days - Average snowfall days in February:
11 days - Average snowfall days in March:
6.7 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
10.7 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 / Average sunshine
South Barrington, IL
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 0min - Average sunshine in December:
4h and 0min
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
South Barrington, IL
- Average sunshine days in January:
14.1 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
15.1 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
South Barrington, IL
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
South Barrington, IL
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
South Barrington, IL
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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