October Weather in Bloomington, United States

Last updated: June 24, 2025

In October, the average temperature in Bloomington, United States hovers around 11°C (51°F). Temperatures can range from a chilly -4°C (25°F) to a warm 30°C (87°F). Expect a total precipitation of 127 mm (5.0 in) spread over 12 days, contributing to an average humidity of 79%. Perfect for those who enjoy a mix of mild weather and occasional rain!

October Temperature in Bloomington

In October in Bloomington, the average temperature is 11°C (51°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as -4°C (25°F). Be prepared for a range of temperatures during your travels to Bloomington this month.

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

The chart illustrates October temperature patterns in Bloomington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bloomington, October typically has an average temperature of 11°C (51°F), with highs reaching up to 30°C (87°F) and lows dropping to around -4°C (25°F).

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

October Precipitation in Bloomington

In Bloomington in October, the precipitation amount is 127 mm (5.0 in) occurring over the course of 12 days.

October Precipitation Trends in Bloomington

The chart displays monthly precipitation patterns in Bloomington, 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 Bloomington, October typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 12 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 Bloomington

In Bloomington in October, humidity is 79%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill in the air, making it necessary to dress in layers while exploring the local sights, as the coolness combined with the high moisture can create an uncomfortable, sticky atmosphere for travelers.

October Average Humidity in Bloomington

This chart illustrates the average monthly humidity levels in Bloomington, 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 Bloomington 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 Bloomington

In Bloomington in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Bloomington.

Maximum UV Index Levels in Bloomington for October

The chart shows the monthly maximum UV Index (UVI) for Bloomington 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 Bloomington typically reaches 5, which falls under the moderate exposure category.

Data source: Bloomington 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 Bloomington Compares to Other Months

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

This table compares monthly weather conditions in Bloomington, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	43 mm (1.7 inches)	84%	moderate
February Weather	-5°C (23°F)	55 mm (2.2 inches)	85%	moderate
March Weather	3°C (37°F)	60 mm (2.3 inches)	84%	moderate
April Weather	8°C (47°F)	81 mm (3.2 inches)	83%	very high
May Weather	16°C (60°F)	138 mm (5.4 inches)	75%	very high
June Weather	22°C (72°F)	131 mm (5.1 inches)	79%	very high
July Weather	24°C (75°F)	114 mm (4.5 inches)	75%	very high
August Weather	22°C (72°F)	90 mm (3.5 inches)	69%	very high
September Weather	19°C (66°F)	118 mm (4.7 inches)	74%	very high
October Weather	11°C (51°F)	127 mm (5.0 inches)	79%	moderate
November Weather	2°C (37°F)	48 mm (1.9 inches)	88%	moderate
December Weather	-2°C (29°F)	40 mm (1.6 inches)	82%	low