October Weather in Charlestown, United States

Last updated: June 24, 2025

In October, the average temperature in Charlestown, United States is a mild 14°C (58°F). Expect minimums dipping to 0°C (33°F) and highs reaching up to 28°C (83°F). During this period, rainfall averages around 134 mm (5.3 in) across 11 days, contributing to an average humidity of 75%. Be prepared for a mix of weather as you enjoy your time outdoors!

October Temperature in Charlestown

In October in Charlestown, the average temperature is 14°C (58°F). The maximum can reach 28°C (83°F), while the minimum can drop to as low as 0°C (33°F). Be prepared for a range of temperatures when traveling to Charlestown during this time, ensuring you pack both warm and light clothing.

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

The chart illustrates October temperature patterns in Charlestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charlestown, October typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around 0°C (33°F).

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

October Precipitation in Charlestown

In Charlestown in October, the precipitation amount is 134 mm (5.3 in) spread over 11 days.

October Precipitation Trends in Charlestown

The chart displays monthly precipitation patterns in Charlestown, 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 Charlestown, October typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Charlestown

In Charlestown in October humidity is 75%. With an average temperature of 14°C (58°F), this humidity feels like a lingering blanket of warmth, making travel both refreshing and a bit stifling, as the moisture in the air may leave you feeling slightly sticky while enjoying outdoor adventures.

October Average Humidity in Charlestown

This chart illustrates the average monthly humidity levels in Charlestown, 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 Charlestown is approximately 75%, 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 Charlestown

In Charlestown in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Charlestown, you can refer to this Hourly UV Index in Charlestown.

Maximum UV Index Levels in Charlestown for October

The chart shows the monthly maximum UV Index (UVI) for Charlestown 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 Charlestown typically reaches 6, which falls under the high exposure category.

Data source: Charlestown 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 Charlestown Compares to Other Months

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

This table compares monthly weather conditions in Charlestown, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	73 mm (2.9 inches)	84%	moderate
February Weather	2°C (35°F)	95 mm (3.7 inches)	84%	moderate
March Weather	4°C (39°F)	101 mm (4.0 inches)	82%	high
April Weather	9°C (48°F)	125 mm (4.9 inches)	79%	very high
May Weather	14°C (58°F)	111 mm (4.4 inches)	75%	very high
June Weather	20°C (68°F)	95 mm (3.7 inches)	78%	very high
July Weather	23°C (74°F)	128 mm (5.0 inches)	76%	very high
August Weather	23°C (74°F)	102 mm (4.0 inches)	76%	very high
September Weather	19°C (67°F)	93 mm (3.7 inches)	75%	very high
October Weather	14°C (58°F)	134 mm (5.3 inches)	75%	high
November Weather	7°C (46°F)	100 mm (3.9 inches)	80%	moderate
December Weather	3°C (37°F)	125 mm (4.9 inches)	80%	low