August Weather in Chester, United States

Last updated: June 24, 2025

In August, the average temperature in Chester, United States is a pleasant 20°C (69°F), with minimums dipping to 5°C (42°F) and maximums soaring to 34°C (93°F). Expect about 92 mm (3.6 in) of precipitation spread over 11 days, contributing to an average humidity of 64%. Whether you’re enjoying the warmth or bracing for the occasional rain, it’s a month full of contrasts!

August Temperature in Chester

In August in Chester, the average temperature is 20°C (69°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 5°C (42°F). This makes it a great time to explore outdoor attractions, but travelers should be prepared for both warm and cool weather.

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

The chart illustrates August 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, August typically has an average temperature of 20°C (69°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (42°F).

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

August Precipitation in Chester

In Chester in August, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

August Precipitation Trends in Chester

The chart displays monthly precipitation patterns in Chester, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Chester, August typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Chester

In Chester in August, humidity is 64%. With an average temperature of 20°C (69°F), this humidity feels like a warm, slightly sticky embrace that can leave travelers feeling a bit sluggish. It's essential to stay hydrated and take breaks in the shade while exploring, as the moisture in the air can make outdoor activities feel more intense.

August Average Humidity in Chester

This chart illustrates the average monthly humidity levels in Chester, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Chester is approximately 64%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Chester

In Chester in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Chester.

Maximum UV Index Levels in Chester for August

The chart shows the monthly maximum UV Index (UVI) for Chester in August, 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 August, the maximum UV index in Chester typically reaches 9, which falls under the very high exposure category.

Data source: Chester August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	72 mm (2.9 inches)	89%	moderate
February Weather	-4°C (26°F)	85 mm (3.3 inches)	88%	moderate
March Weather	0°C (32°F)	73 mm (2.9 inches)	86%	high
April Weather	7°C (44°F)	122 mm (4.8 inches)	84%	very high
May Weather	13°C (56°F)	85 mm (3.3 inches)	76%	very high
June Weather	19°C (66°F)	90 mm (3.5 inches)	72%	very high
July Weather	22°C (71°F)	126 mm (5.0 inches)	66%	very high
August Weather	20°C (69°F)	92 mm (3.6 inches)	64%	very high
September Weather	17°C (62°F)	79 mm (3.1 inches)	72%	high
October Weather	10°C (51°F)	142 mm (5.6 inches)	81%	high
November Weather	2°C (36°F)	101 mm (4.0 inches)	87%	moderate
December Weather	-3°C (27°F)	104 mm (4.1 inches)	84%	low