January Weather in Lyons, United States

Last updated: June 24, 2025

In January, the average temperature in Lyons, United States hovers around 0°C (33°F). You can expect temperatures to range from a brisk -20°C (-3°F) to a mild 20°C (69°F). Be prepared for some rain, as there's an average precipitation of 27 mm (1.0 in) over the course of 3 days. Additionally, the average humidity sits at a comfortable 74%, making for an intriguing climate experience!

January Temperature in Lyons

In January, in Lyons, the average temperature is 0°C (33°F). The maximum can reach 20°C (69°F), while the minimum can drop as low as -20°C (-3°F). Travelers should be prepared for a wide range of temperatures and dress in layers to enjoy the varied climate.

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 0°C (33°F), with highs reaching up to 20°C (69°F) and lows dropping to around -20°C (-3°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 27 mm (1.0 in) over the course of 3 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 27 mm (1.0 inches) of precipitation spread over approximately 3 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 Lyons

In Lyons in January, humidity is 74%. With an average temperature of 0°C (33°F), this humidity feels like a chilly mist enveloping you, making travel uncomfortable and potentially damp, as the cold air clings to your skin and the moisture leaves you feeling chilled to the bone.

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 74%, 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	0°C (33°F)	27 mm (1.0 inches)	74%	moderate
February Weather	1°C (33°F)	27 mm (1.1 inches)	78%	moderate
March Weather	8°C (47°F)	69 mm (2.7 inches)	67%	high
April Weather	12°C (55°F)	54 mm (2.1 inches)	70%	very high
May Weather	18°C (65°F)	160 mm (6.3 inches)	82%	very high
June Weather	25°C (78°F)	72 mm (2.9 inches)	81%	extreme
July Weather	27°C (81°F)	70 mm (2.8 inches)	80%	extreme
August Weather	25°C (78°F)	92 mm (3.6 inches)	80%	very high
September Weather	22°C (73°F)	65 mm (2.6 inches)	73%	very high
October Weather	14°C (57°F)	85 mm (3.4 inches)	71%	high
November Weather	7°C (45°F)	26 mm (1.0 inches)	79%	moderate
December Weather	3°C (37°F)	29 mm (1.2 inches)	83%	moderate