May Weather in Lyons, United States

Last updated: June 24, 2025

In May, the average temperature in Lyons, United States hovers around 16°C (61°F). However, prepare for a range as lows can plummet to -2°C (29°F), while highs can soar up to 34°C (94°F). Expect significant precipitation, with around 138 mm (5.4 in) spread over 15 days, coupled with an average humidity level of 81%. Stay ready for a month of diverse weather!

May Temperature in Lyons

In May in Lyons, the average temperature is 16°C (61°F). Maximum temperatures can reach up to 34°C (94°F), while minimums can drop as low as -2°C (29°F). This range makes Lyons an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates May 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, May typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (94°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Lyons

In Lyons in May, the total precipitation amount is 138 mm (5.4 in) recorded over the course of 15 days.

May Precipitation Trends in Lyons

The chart displays monthly precipitation patterns in Lyons, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Lyons, May typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 15 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Lyons

In Lyons in May, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

May Average Humidity in Lyons

This chart illustrates the average monthly humidity levels in Lyons, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Lyons is approximately 81%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Lyons

In Lyons in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Lyons.

Maximum UV Index Levels in Lyons for May

The chart shows the monthly maximum UV Index (UVI) for Lyons in May, 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 May, the maximum UV index in Lyons typically reaches 10, which falls under the very high exposure category.

Data source: Lyons May 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 May 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 May’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 May’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