January weather forecast
Chicago Ridge, IL

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Weather in January

January, like December, is another subzero cold winter month in Chicago Ridge, Illinois, with an average temperature ranging between min 18.9°F (-7.3°C) and max 29.5°F (-1.4°C).

Temperature

In Chicago Ridge, the lowest temperatures are generally noted in January, averaging a high of 29.5°F (-1.4°C) and a low of 18.9°F (-7.3°C).

Humidity

January and February, with an average relative humidity of 82%, are the most humid months.

Rainfall

In January, the rain falls for 6.2 days. Throughout January, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 147.7 rainfall days, and 23.62" (600mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In January, it is snowing for 11.8 days. Throughout January, 2.72" (69mm) of snow is accumulated. In Chicago Ridge, Illinois, during the entire year, snow falls for 42.4 days and aggregates up to 11.61" (295mm) of snow.

Daylight

The average length of the day in January is 9h and 34min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:04 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.7h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Chicago Ridge?

Chicago Ridge, Illinois, experiences its lowest temperatures in January, with an average peak of 29.5°F (-1.4°C) and a low of 18.9°F (-7.3°C).

How cold is January?

During January, Chicago Ridge experiences an average high-temperature of 29.5°F (-1.4°C) and a low-temperature of 18.9°F (-7.3°C).

What are the most humid months in Chicago Ridge?

The months with the highest humidity are January and February, with an average relative humidity of 82%.

What is the average humidity in January in Chicago Ridge?

In January, the average relative humidity is 82%.

How much does it rain in January?

In Chicago Ridge, in January, during 6.2 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Chicago Ridge, in January, snow falls for 11.8 days, with typically accumulated 2.72" (69mm) of snow.

What is the average length of the day in January?

In Chicago Ridge, Illinois, the average day length in January is 9h and 34min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:04 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.7h of sunshine.

How many hours of sunshine does Chicago Ridge have in January?

The average sunshine duration in January is 3.7h.

How high is the UV index in January in Chicago Ridge?

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

Average temperature in January
Chicago Ridge, IL

Average temperature in January - Chicago Ridge, IL
  • Average high temperature in January: 29.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in January
Chicago Ridge, IL

Average pressure in January - Chicago Ridge, 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).

Average wind speed in January
Chicago Ridge, IL

Average wind speed in January - Chicago Ridge, IL
  • Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in January
Chicago Ridge, IL

Average humidity in January - Chicago Ridge, IL
  • Average humidity in January: 82%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
Chicago Ridge, IL

Average rainfall in January - Chicago Ridge, IL
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").

Average rainfall days in January
Chicago Ridge, IL

Average rainfall days in January - Chicago Ridge, IL
  • Average rainfall days in January: 6.2 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in January
Chicago Ridge, IL

Average snowfall in January - Chicago Ridge, IL
  • Average snowfall in January: 2.72"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Chicago Ridge, IL

Average snowfall days in January - Chicago Ridge, IL
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Chicago Ridge, IL

Average daylight in January / Average sunshine in January - Chicago Ridge, IL
  • Average daylight in January: 9h and 4min

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

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Chicago Ridge, IL

Average sunshine days in January - Chicago Ridge, IL
  • Average sunshine days in January: 13.9 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in January
Chicago Ridge, IL

Average UV index in January - Chicago Ridge, IL
  • Average UV index in January: 2

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

Average cloud cover in January
Chicago Ridge, IL

Average cloud cover in January - Chicago Ridge, IL
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in January
Chicago Ridge, IL

Average visibility in January - Chicago Ridge, IL
  • Average visibility in January: 6mi

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

Chicago Ridge, Illinois, USA

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