October Weather in Saint Clair, United States

Last updated: June 24, 2025

In October, the average temperature in Saint Clair, United States is a cool 13°C (57°F), with minimums dipping as low as 0°C (33°F) and maximums soaring up to 31°C (88°F). Expect an average precipitation of 117 mm (4.6 in) spread over 11 days, contributing to an average humidity of 79%. Prepare accordingly for this diverse climate!

October Temperature in Saint Clair

In October in Saint Clair, the average temperature is 13°C (57°F). Maximum temperatures can reach 31°C (88°F), while minimum temperatures can drop as low as 0°C (33°F). It’s a great time to visit if you enjoy mild weather with the possibility of warmer days.

October Weather in Saint Clair: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Saint Clair, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Clair, October typically has an average temperature of 13°C (57°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (33°F).

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

October Precipitation in Saint Clair

In Saint Clair in October, the total precipitation amount reaches 117 mm (4.6 in) over the course of 11 days.

October Precipitation Trends in Saint Clair

The chart displays monthly precipitation patterns in Saint Clair, 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 Saint Clair, October typically receives around 117 mm (4.6 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 Saint Clair

In Saint Clair in October, humidity is 79%. With an average temperature of 13°C (57°F), this humidity feels like a damp chill that wraps around you, making travel slightly uncomfortable, as the moisture in the air clings to your skin and creates a need for layered clothing to combat the cool and sticky conditions.

October Average Humidity in Saint Clair

This chart illustrates the average monthly humidity levels in Saint Clair, 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 Saint Clair is approximately 79%, 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 Saint Clair

In Saint Clair 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 Saint Clair, you can refer to this Hourly UV Index in Saint Clair.

Maximum UV Index Levels in Saint Clair for October

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

Data source: Saint Clair 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 Saint Clair Compares to Other Months

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

This table compares monthly weather conditions in Saint Clair, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	74 mm (2.9 inches)	87%	moderate
February Weather	1°C (33°F)	106 mm (4.2 inches)	85%	moderate
March Weather	4°C (39°F)	96 mm (3.8 inches)	85%	high
April Weather	10°C (50°F)	111 mm (4.4 inches)	83%	very high
May Weather	16°C (61°F)	133 mm (5.2 inches)	75%	very high
June Weather	21°C (69°F)	118 mm (4.6 inches)	73%	very high
July Weather	24°C (75°F)	163 mm (6.4 inches)	65%	very high
August Weather	22°C (73°F)	155 mm (6.1 inches)	62%	very high
September Weather	19°C (67°F)	117 mm (4.6 inches)	66%	very high
October Weather	13°C (57°F)	117 mm (4.6 inches)	79%	high
November Weather	5°C (42°F)	99 mm (3.9 inches)	87%	moderate
December Weather	1°C (35°F)	93 mm (3.7 inches)	85%	low