May Weather in Darby, United States

Last updated: June 24, 2025

In May, the average temperature in Darby, United States hovers around 6°C (43°F), with extremes ranging from a brisk -10°C (14°F) to a pleasant 26°C (79°F). Expect 72 mm (2.8 in) of precipitation over approximately 14 days, contributing to an average humidity level of 83%. Stay prepared for a mix of chilly and mild weather as you explore this beautiful destination!

May Temperature in Darby

In May in Darby, the average temperature is 6°C (43°F). The maximum can reach 26°C (79°F), while the minimum can drop as low as -10°C (14°F). Be sure to pack layers to stay comfortable and prepared for fluctuating temperatures during your travels.

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

The chart illustrates May temperature patterns in Darby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Darby, May typically has an average temperature of 6°C (43°F), with highs reaching up to 26°C (79°F) and lows dropping to around -10°C (14°F).

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

May Precipitation in Darby

In Darby in May, the total precipitation amount is 72 mm (2.8 in) spread over the course of 14 days.

May Precipitation Trends in Darby

The chart displays monthly precipitation patterns in Darby, 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 Darby, May typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Darby

In Darby in May, humidity is 83%. With an average temperature of 6°C (43°F), this humidity feels like a brisk chill that can make you feel colder than the actual temperature, often leading to a damp and uncomfortable experience for traveling.

May Average Humidity in Darby

This chart illustrates the average monthly humidity levels in Darby, 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 Darby is approximately 83%, 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 Darby

In Darby in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Darby.

Maximum UV Index Levels in Darby for May

The chart shows the monthly maximum UV Index (UVI) for Darby 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 Darby typically reaches 11, which falls under the extreme exposure category.

Data source: Darby 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 Darby Compares to Other Months

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

This table compares monthly weather conditions in Darby, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	62 mm (2.4 inches)	94%	moderate
February Weather	-6°C (21°F)	122 mm (4.8 inches)	93%	moderate
March Weather	-1°C (30°F)	82 mm (3.2 inches)	91%	high
April Weather	1°C (34°F)	82 mm (3.2 inches)	87%	very high
May Weather	6°C (43°F)	72 mm (2.8 inches)	83%	extreme
June Weather	12°C (54°F)	87 mm (3.4 inches)	80%	extreme
July Weather	18°C (64°F)	29 mm (1.1 inches)	75%	extreme
August Weather	17°C (62°F)	29 mm (1.1 inches)	66%	very high
September Weather	11°C (52°F)	45 mm (1.8 inches)	66%	very high
October Weather	2°C (37°F)	75 mm (3.0 inches)	77%	moderate
November Weather	-3°C (27°F)	74 mm (2.9 inches)	91%	moderate
December Weather	-7°C (19°F)	82 mm (3.2 inches)	96%	low