January Weather in Evanston, United States

Last updated: June 24, 2025

In January, the average temperature in Evanston, United States hovers around -6°C (22°F). Expect a minimum that can plunge to -28°C (-18°F) and a rare maximum reaching up to 7°C (46°F). This chilly month also brings about 43 mm (1.7 in) of precipitation over approximately 8 days, accompanied by a high average humidity of 91%. Stay warm and prepared for the elements!

January Temperature in Evanston

In January in Evanston, the average temperature is -6°C (22°F), with maximums reaching 7°C (46°F) and minimums dropping as low as -28°C (-18°F). Travelers should be prepared for extreme cold and dress accordingly when visiting during this time.

January Weather in Evanston: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Evanston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Evanston, January typically has an average temperature of -6°C (22°F), with highs reaching up to 7°C (46°F) and lows dropping to around -28°C (-18°F).

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

January Precipitation in Evanston

In Evanston in January, the total precipitation amount is 43 mm (1.7 in) over the course of 8 days.

January Precipitation Trends in Evanston

The chart displays monthly precipitation patterns in Evanston, 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 Evanston, January typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Evanston

In Evanston in January humidity is 91%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and travel challenging as the air feels dense and heavy, potentially making it more difficult to breathe and leaving a frosty mist on your skin.

January Average Humidity in Evanston

This chart illustrates the average monthly humidity levels in Evanston, 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 Evanston is approximately 91%, 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 Evanston

In Evanston in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Evanston for better planning.

Maximum UV Index Levels in Evanston for January

The chart shows the monthly maximum UV Index (UVI) for Evanston 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 Evanston typically reaches 4, which falls under the moderate exposure category.

Data source: Evanston 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 Evanston Compares to Other Months

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

This table compares monthly weather conditions in Evanston, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	43 mm (1.7 inches)	91%	moderate
February Weather	-5°C (24°F)	52 mm (2.1 inches)	92%	high
March Weather	0°C (32°F)	55 mm (2.2 inches)	84%	very high
April Weather	3°C (38°F)	50 mm (2.0 inches)	74%	very high
May Weather	9°C (48°F)	61 mm (2.4 inches)	62%	extreme
June Weather	16°C (61°F)	21 mm (0.8 inches)	56%	extreme
July Weather	21°C (70°F)	23 mm (0.9 inches)	44%	extreme
August Weather	19°C (67°F)	21 mm (0.8 inches)	37%	extreme
September Weather	14°C (58°F)	27 mm (1.0 inches)	46%	very high
October Weather	5°C (41°F)	35 mm (1.4 inches)	67%	high
November Weather	0°C (33°F)	43 mm (1.7 inches)	84%	moderate
December Weather	-5°C (23°F)	42 mm (1.7 inches)	88%	moderate