October Weather in Chester, United States

Last updated: June 24, 2025

In Chester, United States, the average temperature in October hovers around 18°C (64°F), but be prepared for variability—minimums can dip to 1°C (34°F), while maximums soar to 36°C (98°F). Expect a total precipitation of 127 mm (5.0 in) over approximately 9 days, contributing to an average humidity level of 81%.

October Temperature in Chester

In October in Chester, the average temperature is 18°C (64°F). Maximums can reach 36°C (98°F) and minimums can be as low as 1°C (34°F). Be prepared for a diverse range of weather conditions while exploring the area!

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

The chart illustrates October 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, October typically has an average temperature of 18°C (64°F), with highs reaching up to 36°C (98°F) and lows dropping to around 1°C (34°F).

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

October Precipitation in Chester

In Chester in October, the precipitation amount is 127 mm (5.0 in) over a span of 9 days.

October Precipitation Trends in Chester

The chart displays monthly precipitation patterns in Chester, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Chester, October typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Chester

In Chester in October, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

October Average Humidity in Chester

This chart illustrates the average monthly humidity levels in Chester, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Chester is approximately 81%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Chester

In Chester in October, 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 October

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

Data source: Chester October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	75 mm (3.0 inches)	84%	moderate
February Weather	8°C (46°F)	99 mm (3.9 inches)	84%	high
March Weather	10°C (51°F)	77 mm (3.0 inches)	84%	high
April Weather	16°C (60°F)	106 mm (4.2 inches)	82%	very high
May Weather	20°C (69°F)	107 mm (4.2 inches)	82%	very high
June Weather	24°C (76°F)	114 mm (4.5 inches)	83%	very high
July Weather	27°C (81°F)	116 mm (4.6 inches)	79%	very high
August Weather	26°C (79°F)	160 mm (6.3 inches)	77%	very high
September Weather	23°C (74°F)	102 mm (4.0 inches)	75%	very high
October Weather	18°C (64°F)	127 mm (5.0 inches)	81%	very high
November Weather	10°C (50°F)	76 mm (3.0 inches)	87%	moderate
December Weather	7°C (45°F)	94 mm (3.7 inches)	85%	moderate