May Weather in Chester, United States

Last updated: June 24, 2025

In May, the average temperature in Chester, United States is a mild 12°C (54°F). However, temperatures can vary significantly, with a minimum of -4°C (26°F) and a maximum reaching up to 32°C (89°F). Expect about 57 mm (2.2 in) of precipitation spread over 8 days, contributing to an average humidity of 72%.

May Temperature in Chester

In May in Chester, the average temperature is 12°C (54°F). Maximum temperatures can reach up to 32°C (89°F), while minimums can drop as low as -4°C (26°F). Be prepared for a wide range of temperatures when traveling to Chester this month.

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

The chart illustrates May temperature patterns in Chester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chester, May typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (89°F) and lows dropping to around -4°C (26°F).

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

May Precipitation in Chester

In Chester in May, the precipitation amount is 57 mm (2.2 in) over the course of 8 days.

May Precipitation Trends in Chester

The chart displays monthly precipitation patterns in Chester, 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 Chester, May typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 8 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 Chester

In Chester in May, humidity is 72%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that wraps around you, making outdoor excursions a bit uncomfortable. You may find yourself reaching for an extra layer as the moisture in the air adds to the coolness, prompting travelers to seek out sheltered spots to enjoy the scenery.

May Average Humidity in Chester

This chart illustrates the average monthly humidity levels in Chester, 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 Chester is approximately 72%, 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 Chester

In Chester in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Chester.

Maximum UV Index Levels in Chester for May

The chart shows the monthly maximum UV Index (UVI) for Chester 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 Chester typically reaches 8, which falls under the very high exposure category.

Data source: Chester 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 Chester Compares to Other Months

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

This table compares monthly weather conditions in Chester, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	13 mm (0.5 inches)	86%	low
February Weather	-9°C (15°F)	33 mm (1.3 inches)	89%	moderate
March Weather	-1°C (30°F)	18 mm (0.7 inches)	83%	moderate
April Weather	5°C (41°F)	37 mm (1.4 inches)	75%	high
May Weather	12°C (54°F)	57 mm (2.2 inches)	72%	very high
June Weather	18°C (64°F)	48 mm (1.9 inches)	75%	very high
July Weather	22°C (72°F)	10 mm (0.4 inches)	75%	very high
August Weather	20°C (69°F)	25 mm (1.0 inches)	69%	very high
September Weather	14°C (58°F)	28 mm (1.1 inches)	66%	high
October Weather	6°C (42°F)	20 mm (0.8 inches)	72%	moderate
November Weather	0°C (32°F)	28 mm (1.1 inches)	82%	moderate
December Weather	-5°C (24°F)	20 mm (0.8 inches)	89%	low