Climate and monthly weather forecast
Barrington, IL

Weather in January

January, like December, is a freezing cold winter month in Barrington, Illinois, with an average temperature fluctuating between 16.3°F (-8.7°C) and 27.7°F (-2.4°C). The coldest month is January, with an average high-temperature of 27.7°F (-2.4°C) and an average low-temperature of 16.3°F (-8.7°C). Weather in January »

Weather in February

February, the last month of the winter in Barrington, is also a subzero cold month, with an average temperature varying between 31.1°F (-0.5°C) and 18.9°F (-7.3°C). In Barrington, the average high-temperature in February is relatively the same as in January - a still subzero cold 31.1°F (-0.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Barrington, Illinois, with an average temperature ranging between min 30.4°F (-0.9°C) and max 43.5°F (6.4°C). In Barrington, Illinois, the average high-temperature in March rises from a freezing cold 31.1°F (-0.5°C) in February to a chilly 43.5°F (6.4°C). Weather in March »

Weather in April

April in Barrington, Illinois, is a fresh spring month, with temperature in the range of an average low of 39.2°F (4°C) and an average high of 54.3°F (12.4°C). In Barrington, the average high-temperature in April increases from a frosty 43.5°F (6.4°C) in March to a cool 54.3°F (12.4°C). Weather in April »

Weather in May

May, the last month of the spring in Barrington, is a comfortable month, with an average temperature fluctuating between 66.4°F (19.1°C) and 50.2°F (10.1°C). In May, the average high-temperature rises from a fresh 54.3°F (12.4°C) in April to a comfortable 66.4°F (19.1°C). Weather in May »

Weather in June

June, the first month of the summer in Barrington, is a moderately hot month, with an average temperature varying between 75.9°F (24.4°C) and 59.7°F (15.4°C). In Barrington, Illinois, the average high-temperature in June increases from a comfortable 66.4°F (19.1°C) in May to a moderately hot 75.9°F (24.4°C). Weather in June »

Weather in July

July, like June, in Barrington, Illinois, is a moderately hot summer month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 80.6°F (27°C). July is the warmest month, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 64.9°F (18.3°C). The average heat index in July is appraised at 85.3°F (29.6°C). Weather in July »

Weather in August

August, the last month of the summer in Barrington, is another warm month, with an average temperature ranging between max 79.3°F (26.3°C) and min 63.5°F (17.5°C). In Barrington, the average high-temperature in August is essentially the same as in July - a still moderately hot 79.3°F (26.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Barrington, is still a pleasant month, with temperature in the range of an average high of 72.9°F (22.7°C) and an average low of 57.2°F (14°C). In Barrington, the average high-temperature in September slightly decreases from a moderately hot 79.3°F (26.3°C) in August to a pleasant 72.9°F (22.7°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Barrington, Illinois, with an average temperature ranging between min 45.3°F (7.4°C) and max 59.5°F (15.3°C). In Barrington, the average high-temperature in October decreases from a pleasant 72.9°F (22.7°C) in September to a mild 59.5°F (15.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Barrington, is also a frosty month, with an average temperature ranging between min 33.1°F (0.6°C) and max 45.1°F (7.3°C). In Barrington, Illinois, the average high-temperature in November significantly decreases from a mild 59.5°F (15.3°C) in October to a chilly 45.1°F (7.3°C). Weather in November »

Weather in December

December, the first month of the winter in Barrington, is also a wintry month, with an average temperature varying between 23.9°F (-4.5°C) and 33.4°F (0.8°C). In Barrington, the average high-temperature in December decreases from a frosty 45.1°F (7.3°C) in November to a wintry 33.4°F (0.8°C). Weather in December »
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FAQ

What is the coldest month in Barrington?

With an average high-temperature of 27.7°F (-2.4°C) and an average low-temperature of 16.3°F (-8.7°C), January is the coldest month in Barrington, Illinois.

What are the most humid months in Barrington?

January and February, with an average relative humidity of 83%, are most humid months in Barrington.

How much does it rain in Barrington?

Throughout the year, in Barrington, Illinois, there are 163.1 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

When does it snow in Barrington?

Months with snowfall in Barrington are January through May, October through December.

How many days does it snow in Barrington?

In Barrington, Illinois, during the entire year, snow falls for 55.5 days and aggregates up to 22.95" (583mm) of snow.

What is the month with the least sunshine in Barrington?

With an average of 3.7h of sunshine, January has the least sunshine of the year in Barrington.

What is the month with the lowest UV index in Barrington?

The months with the lowest UV index in Barrington are January and December, with an average maximum UV index of 1.

What is the snowiest month in Barrington?

The month with the most snowfall in Barrington is February, when snow falls for 12.8 days and typically aggregates up to 6.22" (158mm) of snow.

When is Daylight Saving Time (DST) in Barrington?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Barrington, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Barrington?

June is the month with the most rainfall in Barrington. Rain falls for 18.8 days and accumulates 4.13" (105mm) of precipitation.

When it does not snow in Barrington?

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

When are the longest days in Barrington?

With an average of 15h and 13min of daylight, June has the longest days of the year in Barrington.

What is the warmest month in Barrington?

July is the warmest month in Barrington, Illinois, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 64.9°F (18.3°C).

What are the months with the most sunshine in Barrington?

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

What are the months with the highest UV index in Barrington?

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

What is the least humid month in Barrington?

With an average relative humidity of 74%, October is the least humid month in Barrington, Illinois.

What is the driest month in Barrington?

November is the month with the least rainfall in Barrington, Illinois. Rain falls for 9.4 days and accumulates 1.61" (41mm) of precipitation.

What is the month with the shortest days in Barrington?

With an average of 9h and 10min of daylight, December has the shortest days of the year.

Average temperature
Barrington, IL

Average temperature - Barrington, IL

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).

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).

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Average pressure
Barrington, IL

Average pressure - Barrington, IL

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

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Average wind speed
Barrington, IL

Average wind speed - Barrington, IL

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).

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Average humidity
Barrington, IL

Average humidity - Barrington, IL

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

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Average rainfall
Barrington, IL

Average rainfall - Barrington, IL

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

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Average rainfall days
Barrington, IL

Average rainfall days - Barrington, IL

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).

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Average snowfall
Barrington, IL

Average snowfall - Barrington, IL

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

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Average snowfall days
Barrington, IL

Average snowfall days - Barrington, IL

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).

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Average daylight / Average sunshine
Barrington, IL

Average daylight / Average sunshine - Barrington, IL

The month with the longest days is June (Average daylight: 15h and 13min).
The month with the shortest days is December (Average daylight: 9h and 10min).

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).

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Average sunshine days
Barrington, IL

Average sunshine days - Barrington, IL

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

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Average visibility
Barrington, IL

Average visibility - 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).

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