January Weather in South Chicago, United States

Last updated: June 24, 2025

In South Chicago, United States, the average temperature in January hovers around -2°C (28°F), with extremes ranging from a frigid -27°C (-17°F) to a milder 9°C (49°F). Expect 91 mm (3.6 in) of precipitation spread over 11 days, accompanied by an average humidity level of 82%.

January Temperature in South Chicago

In January in South Chicago, the average temperature is -2°C (28°F). The maximum can reach 9°C (49°F), while the minimum can plummet to -27°C (-17°F). Travelers should prepare for a chilly adventure with significant temperature variations during this time.

January Weather in South Chicago: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in South Chicago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Chicago, January typically has an average temperature of -2°C (28°F), with highs reaching up to 9°C (49°F) and lows dropping to around -27°C (-17°F).

Data source: Temperature data for South Chicago generated using information from the Copernicus Climate Change Service.

January Precipitation in South Chicago

In South Chicago in January, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.

January Precipitation Trends in South Chicago

The chart displays monthly precipitation patterns in South Chicago, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In South Chicago, January typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in South Chicago

In South Chicago in January, humidity is 82%. With an average temperature of -2°C (28°F), this humidity feels like an icy shroud enveloping you, making every breath feel crisp and biting as you navigate through a winter wonderland, each step a reminder of the contrast between the cold air and the heavy moisture lingering in the atmosphere.

January Average Humidity in South Chicago

This chart illustrates the average monthly humidity levels in South Chicago, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in South Chicago is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in South Chicago

In South Chicago in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in South Chicago, you can check the information here.

Maximum UV Index Levels in South Chicago for January

The chart shows the monthly maximum UV Index (UVI) for South Chicago in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in South Chicago typically reaches 3, which falls under the moderate exposure category.

Data source: South Chicago January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in South Chicago Compares to Other Months

Weather in South Chicago varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in South Chicago, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in South Chicago, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	91 mm (3.6 inches)	82%	moderate
February Weather	-2°C (30°F)	89 mm (3.5 inches)	83%	moderate
March Weather	3°C (37°F)	111 mm (4.4 inches)	84%	high
April Weather	6°C (44°F)	132 mm (5.2 inches)	85%	very high
May Weather	12°C (54°F)	163 mm (6.4 inches)	79%	very high
June Weather	19°C (66°F)	133 mm (5.2 inches)	82%	very high
July Weather	22°C (73°F)	77 mm (3.0 inches)	80%	very high
August Weather	23°C (73°F)	72 mm (2.9 inches)	81%	very high
September Weather	20°C (68°F)	76 mm (3.0 inches)	80%	very high
October Weather	13°C (56°F)	170 mm (6.7 inches)	82%	high
November Weather	5°C (42°F)	90 mm (3.6 inches)	88%	moderate
December Weather	2°C (35°F)	86 mm (3.4 inches)	84%	low