October Weather in Bloomington, United States

Last updated: June 24, 2025

The average temperature in Bloomington, United States during October is a pleasant 23°C (74°F). However, temperatures can vary significantly, with minimums dipping to 3°C (37°F) and maximums soaring to 35°C (96°F). Expect 76 mm (3.0 in) of precipitation spread over 11 days, contributing to an average humidity of 75%.

October Temperature in Bloomington

In October in Bloomington, the average temperature is 23°C (74°F). Maximums can reach 35°C (96°F), while minimums can drop as low as 3°C (37°F). Be sure to pack layers to accommodate the varying temperatures during your travels!

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 23°C (74°F), with highs reaching up to 35°C (96°F) and lows dropping to around 3°C (37°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 total precipitation amount is 76 mm (3.0 in), recorded over a period of 11 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 76 mm (3.0 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 Bloomington

In Bloomington in October, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

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 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 Bloomington

In Bloomington in October, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, 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 9, which falls under the very high 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	14°C (57°F)	52 mm (2.1 inches)	78%	moderate
February Weather	15°C (59°F)	55 mm (2.2 inches)	81%	very high
March Weather	20°C (67°F)	59 mm (2.3 inches)	76%	very high
April Weather	22°C (72°F)	69 mm (2.7 inches)	79%	extreme
May Weather	26°C (79°F)	118 mm (4.7 inches)	79%	extreme
June Weather	28°C (83°F)	132 mm (5.2 inches)	74%	extreme
July Weather	29°C (85°F)	99 mm (3.9 inches)	71%	extreme
August Weather	30°C (86°F)	94 mm (3.7 inches)	68%	extreme
September Weather	27°C (82°F)	137 mm (5.4 inches)	73%	extreme
October Weather	23°C (74°F)	76 mm (3.0 inches)	75%	very high
November Weather	18°C (64°F)	69 mm (2.7 inches)	78%	high
December Weather	15°C (60°F)	68 mm (2.7 inches)	84%	moderate