October Weather in Chester, United States

Last updated: June 24, 2025

In October, the average temperature in Chester, United States hovers around 21°C (71°F). However, be prepared for a range, as temperatures can dip as low as 3°C (38°F) and soar up to 37°C (99°F). Expect approximately 93 mm (3.7 in) of precipitation over 7 days, with an average humidity level of 78% keeping the air pleasantly moist.

October Temperature in Chester

In October in Chester, the average temperature is 21°C (71°F), with maximums reaching 37°C (99°F) and minimums dipping as low as 3°C (38°F). This varied climate makes Chester an excellent destination for travelers seeking both warmth and a chance to experience cooler temperatures.

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 21°C (71°F), with highs reaching up to 37°C (99°F) and lows dropping to around 3°C (38°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 93 mm (3.7 in) over the course of 7 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 93 mm (3.7 inches) of precipitation spread over approximately 7 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 78%. With an average temperature of 21°C (71°F), this humidity feels like a warm blanket wrapped around you, making travel a bit more challenging as it can lead to a sticky, heavy sensation, dampening the enjoyment of outdoor activities.

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 78%, 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	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