January Weather in Lyons, United States

Last updated: June 24, 2025

In January, the average temperature in Lyons, United States hovers around -3°C (27°F). Expect chilly conditions, with minimums plunging to -20°C (-4°F) and maximums reaching a mild 17°C (63°F). You'll experience an average humidity of 90%, accompanied by 83 mm (3.3 in) of precipitation over 13 days. Be prepared for a wet and cold atmosphere!

January Temperature in Lyons

In January in Lyons, the average temperature is -3°C (27°F), with a maximum that can reach 17°C (63°F) and a minimum that can drop as low as -20°C (-4°F). Travelers should prepare for a wide range of temperatures, from chilly winter conditions to milder days, making it essential to pack accordingly.

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 -3°C (27°F), with highs reaching up to 17°C (63°F) and lows dropping to around -20°C (-4°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 83 mm (3.3 in) over a span of 13 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 83 mm (3.3 inches) of precipitation spread over approximately 13 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 90%. With an average temperature of -3°C (27°F), this humidity feels like a bitter chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to combat both the cold and the dampness in the air.

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 90%, 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 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Lyons, you can visit Hourly UV Index in Lyons.

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 2, which falls under the low 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	-3°C (27°F)	83 mm (3.3 inches)	90%	low
February Weather	-2°C (29°F)	83 mm (3.3 inches)	90%	moderate
March Weather	2°C (35°F)	76 mm (3.0 inches)	87%	high
April Weather	8°C (46°F)	117 mm (4.6 inches)	88%	very high
May Weather	15°C (59°F)	116 mm (4.6 inches)	82%	very high
June Weather	20°C (68°F)	86 mm (3.4 inches)	79%	very high
July Weather	23°C (73°F)	151 mm (6.0 inches)	78%	very high
August Weather	22°C (72°F)	106 mm (4.2 inches)	76%	very high
September Weather	18°C (65°F)	79 mm (3.1 inches)	78%	high
October Weather	12°C (55°F)	147 mm (5.8 inches)	84%	moderate
November Weather	4°C (40°F)	89 mm (3.5 inches)	89%	moderate
December Weather	0°C (33°F)	95 mm (3.7 inches)	86%	low