January Weather in Lyons, United States

Last updated: June 24, 2025

In January, the average temperature in Lyons, United States hovers around -2°C (28°F), but don’t be fooled—temperatures can plunge to a frigid -27°C (-16°F) or soar to a mild 16°C (62°F). Rain is not uncommon, with 68 mm (2.7 in) of precipitation expected over 8 days. Add to that an average humidity of 88%, and you have a month that truly encapsulates winter's chill!

January Temperature in Lyons

In January in Lyons, the average temperature is -2°C (28°F), with maximums reaching 16°C (62°F) and minimums dropping as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures, from chilly lows to unexpectedly warm days.

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

The chart illustrates January temperature patterns in Lyons, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lyons, January typically has an average temperature of -2°C (28°F), with highs reaching up to 16°C (62°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Lyons

In Lyons in January, the precipitation amount is 68 mm (2.7 in) spread over 8 days.

January Precipitation Trends in Lyons

The chart displays monthly precipitation patterns in Lyons, 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 Lyons, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 8 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 Lyons

In Lyons in January humidity is 88%. With an average temperature of -2°C (28°F), this humidity feels like an icy cling to your skin, making every breath feel brisk and sharp, while the dampness cuts through layers of clothing, leaving travelers yearning for warmth and comfort.

January Average Humidity in Lyons

This chart illustrates the average monthly humidity levels in Lyons, 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 Lyons is approximately 88%, 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 Lyons

In Lyons 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 Lyons, you can check the information here.

Maximum UV Index Levels in Lyons for January

The chart shows the monthly maximum UV Index (UVI) for Lyons 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 Lyons typically reaches 3, which falls under the moderate exposure category.

Data source: Lyons 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 Lyons Compares to Other Months

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

This table compares monthly weather conditions in Lyons, 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)	68 mm (2.7 inches)	88%	moderate
February Weather	-2°C (29°F)	68 mm (2.7 inches)	87%	moderate
March Weather	4°C (39°F)	83 mm (3.3 inches)	87%	high
April Weather	9°C (49°F)	93 mm (3.6 inches)	87%	very high
May Weather	16°C (61°F)	138 mm (5.4 inches)	81%	very high
June Weather	22°C (71°F)	96 mm (3.8 inches)	82%	very high
July Weather	24°C (76°F)	109 mm (4.3 inches)	81%	very high
August Weather	23°C (73°F)	85 mm (3.3 inches)	78%	very high
September Weather	20°C (67°F)	57 mm (2.2 inches)	78%	very high
October Weather	13°C (56°F)	94 mm (3.7 inches)	82%	high
November Weather	4°C (40°F)	81 mm (3.2 inches)	89%	moderate
December Weather	1°C (34°F)	54 mm (2.1 inches)	86%	low