May Weather in Worcester, United States

Last updated: June 24, 2025

In Worcester, United States, the average temperature in May hovers around 13°C (56°F), with a chilly minimum of -3°C (26°F) and a surprisingly warm maximum of 31°C (88°F). Prepare for rain, as 115 mm (4.5 in) of precipitation is expected over 16 days, contributing to an average humidity level of 76%. Stay comfortable and ready for varied weather!

May Temperature in Worcester

In May in Worcester, the average temperature is 13°C (56°F). Maximums can reach 31°C (88°F), and minimums can be as low as -3°C (26°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Worcester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Worcester, May typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (88°F) and lows dropping to around -3°C (26°F).

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

May Precipitation in Worcester

In Worcester in May, the precipitation amount is 115 mm (4.5 in) over a span of 16 days.

May Precipitation Trends in Worcester

The chart displays monthly precipitation patterns in Worcester, 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 Worcester, May typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 16 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 Worcester

In Worcester in May humidity is 76%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making travel a bit uncomfortable as you navigate through the heavy, moisture-laden air.

May Average Humidity in Worcester

This chart illustrates the average monthly humidity levels in Worcester, 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 Worcester is approximately 76%, 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 Worcester

In Worcester 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 Worcester.

Maximum UV Index Levels in Worcester for May

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

Data source: Worcester 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 Worcester Compares to Other Months

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

This table compares monthly weather conditions in Worcester, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	76 mm (3.0 inches)	89%	moderate
February Weather	-3°C (27°F)	94 mm (3.7 inches)	88%	moderate
March Weather	0°C (33°F)	87 mm (3.4 inches)	86%	high
April Weather	7°C (44°F)	114 mm (4.5 inches)	84%	very high
May Weather	13°C (56°F)	115 mm (4.5 inches)	76%	very high
June Weather	18°C (65°F)	101 mm (4.0 inches)	72%	very high
July Weather	21°C (70°F)	117 mm (4.6 inches)	66%	very high
August Weather	20°C (68°F)	106 mm (4.2 inches)	64%	very high
September Weather	16°C (62°F)	97 mm (3.8 inches)	72%	very high
October Weather	11°C (51°F)	144 mm (5.7 inches)	81%	high
November Weather	2°C (37°F)	97 mm (3.8 inches)	87%	moderate
December Weather	-2°C (29°F)	92 mm (3.6 inches)	84%	low