May Weather in Willoughby, United States

Last updated: June 24, 2025

In Willoughby, United States, the average temperature in May hovers around 12°C (54°F). Expect minimums as low as 1°C (34°F) and maximums reaching 24°C (76°F). This month brings 112 mm (4.4 in) of precipitation spread over 14 days, with average humidity sitting at a comfortable 81%.

May Temperature in Willoughby

In May in Willoughby, the average temperature is 12°C (54°F). Maximums can reach 24°C (76°F), while minimums can drop to as low as 1°C (34°F). This range makes Willoughby an ideal destination for travelers seeking a pleasant climate, perfect for exploring outdoor activities and enjoying the local scenery.

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

The chart illustrates May temperature patterns in Willoughby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willoughby, May typically has an average temperature of 12°C (54°F), with highs reaching up to 24°C (76°F) and lows dropping to around 1°C (34°F).

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

May Precipitation in Willoughby

In Willoughby in May, the precipitation amount is 112 mm (4.4 in) spread over 14 days.

May Precipitation Trends in Willoughby

The chart displays monthly precipitation patterns in Willoughby, 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 Willoughby, May typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 14 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 Willoughby

In Willoughby in May humidity is 81%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel sluggish and uncomfortable as you battle the stickiness while trying to enjoy your surroundings.

May Average Humidity in Willoughby

This chart illustrates the average monthly humidity levels in Willoughby, 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 Willoughby 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 Willoughby

In Willoughby 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 Willoughby.

Maximum UV Index Levels in Willoughby for May

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

Data source: Willoughby 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 Willoughby Compares to Other Months

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

This table compares monthly weather conditions in Willoughby, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	100 mm (3.9 inches)	88%	moderate
February Weather	-1°C (31°F)	100 mm (3.9 inches)	88%	moderate
March Weather	2°C (35°F)	97 mm (3.8 inches)	87%	high
April Weather	6°C (43°F)	114 mm (4.5 inches)	87%	very high
May Weather	12°C (54°F)	112 mm (4.4 inches)	81%	very high
June Weather	19°C (66°F)	92 mm (3.6 inches)	83%	very high
July Weather	23°C (73°F)	104 mm (4.1 inches)	82%	very high
August Weather	23°C (73°F)	77 mm (3.0 inches)	76%	very high
September Weather	20°C (68°F)	91 mm (3.6 inches)	77%	very high
October Weather	15°C (59°F)	139 mm (5.5 inches)	82%	high
November Weather	7°C (44°F)	137 mm (5.4 inches)	89%	moderate
December Weather	3°C (37°F)	115 mm (4.5 inches)	86%	low