January 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).

Temperature

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).

Humidity

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

Rainfall

In Barrington, during January, the rain falls for 6.7 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Barrington, Illinois, there are 163.1 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Barrington, in January, during 15.5 snowfall days, 6.14" (156mm) of snow is typically accumulated. Throughout the year, in Barrington, there are 55.5 snowfall days, and 22.95" (583mm) of snow is accumulated.

Daylight

The average length of the day in January in Barrington, Illinois, is 9h and 31min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:31 pm. On the last day of January, in Barrington, sunrise is at 7:06 am and sunset at 5:05 pm CST.

Sunshine

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

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 1 in January interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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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.

What are the most humid months in Barrington?

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

What is the average humidity in January in Barrington?

In January, the average relative humidity in Barrington is 83%.

How much does it rain in Barrington in January?

In January, in Barrington, Illinois, the rain falls for 6.7 days. Throughout January, 1.77" (45mm) of precipitation is accumulated.

How many days does it snow in January in Barrington?

In Barrington, Illinois, during January, snow falls for 15.5 days and regularly aggregates up to 6.14" (156mm) of snow.

How many hours of daylight does Barrington have in January?

In January, the average day length in Barrington is 9h and 31min.

When are sunrise and sunset in January in Barrington?

In January, on the first day of the month, sunrise is at 7:21 am and sunset at 4:31 pm. On the last day of the month, in Barrington, Illinois, sunrise is at 7:06 am and sunset at 5:05 pm CST.

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, Illinois.

How long on average sun shines in January in Barrington?

In January, the average sunshine duration is 3.7h.

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

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

What is the UV index intensity in January in Barrington?

In January, the average daily maximum UV index in Barrington is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Barrington, IL

Average temperature in January - Barrington, IL
  • Average high temperature in January: 27.7°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 January: 16.3°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 in January
Barrington, IL

Average pressure in January - Barrington, IL
  • Average pressure in January: 30.11"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).

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Average wind speed in January
Barrington, IL

Average wind speed in January - Barrington, IL
  • Average wind speed in January: 10.1mph

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 in January
Barrington, IL

Average humidity in January - Barrington, IL
  • Average humidity in January: 83%

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 in January
Barrington, IL

Average rainfall in January - Barrington, IL
  • Average rainfall in January: 1.77"

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 in January
Barrington, IL

Average rainfall days in January - Barrington, IL
  • Average rainfall days in January: 6.7 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).

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Average snowfall in January
Barrington, IL

Average snowfall in January - Barrington, IL
  • Average snowfall in January: 6.14"

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 in January
Barrington, IL

Average snowfall days in January - Barrington, IL
  • Average snowfall days in January: 15.5 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).

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Average daylight in January /
Average sunshine in January
Barrington, IL

Average daylight in January / Average sunshine in January - Barrington, IL
  • Average daylight in January: 9h and 31min

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).

  • Average sunshine in January: 3h and 42min

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 in January
Barrington, IL

Average sunshine days in January - Barrington, IL
  • Average sunshine days in January: 12.2 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).

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Average UV index in January
Barrington, IL

Average UV index in January - Barrington, IL
  • Average UV index in January: 1

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).

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Average cloud cover in January
Barrington, IL

Average cloud cover in January - Barrington, IL
  • Average cloud cover in January: 61

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).

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Average visibility in January
Barrington, IL

Average visibility in January - Barrington, IL
  • Average visibility in January: 5mi

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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