May Weather in Chester, United States

Last updated: June 24, 2025

In Chester, United States, the average temperature in May is a comfortable 24°C (76°F). However, be prepared for a wide range, with temperatures dipping to as low as 9°C (48°F) and soaring up to 38°C (100°F). Expect about 83 mm (3.3 in) of precipitation over 7 days, accompanied by an average humidity of 81%. Stay hydrated and enjoy the climate!

May Temperature in Chester

In May in Chester, the average temperature is 24°C (76°F). The maximum can reach 38°C (100°F), while the minimum can drop as low as 9°C (48°F). Be prepared for a range of weather conditions if you're planning to travel during this time.

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 24°C (76°F), with highs reaching up to 38°C (100°F) and lows dropping to around 9°C (48°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 total precipitation amount is 83 mm (3.3 in) over the course of 7 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 83 mm (3.3 inches) of precipitation spread over approximately 7 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 81%. With an average temperature of 24°C (76°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel exhausting, leaving travelers in need of frequent breaks and plenty of hydration.

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 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 Chester

In Chester 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 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 11, which falls under the extreme 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	10°C (50°F)	96 mm (3.8 inches)	86%	moderate
February Weather	13°C (56°F)	117 mm (4.6 inches)	84%	high
March Weather	16°C (61°F)	78 mm (3.1 inches)	83%	very high
April Weather	19°C (67°F)	92 mm (3.6 inches)	81%	very high
May Weather	24°C (76°F)	83 mm (3.3 inches)	81%	extreme
June Weather	27°C (80°F)	105 mm (4.1 inches)	81%	extreme
July Weather	28°C (83°F)	100 mm (3.9 inches)	83%	extreme
August Weather	28°C (83°F)	92 mm (3.6 inches)	81%	extreme
September Weather	26°C (79°F)	107 mm (4.2 inches)	82%	very high
October Weather	21°C (71°F)	93 mm (3.7 inches)	78%	very high
November Weather	14°C (57°F)	65 mm (2.6 inches)	86%	high
December Weather	11°C (52°F)	121 mm (4.7 inches)	89%	moderate