May Weather in Bloomington, United States

Last updated: August 27, 2025

In May, the average temperature in Bloomington, United States hovers around 16°C (60°F). However, it can vary significantly, with minimums dipping to 0°C (32°F) and maximums soaring to 34°C (93°F). Expect about 138 mm (5.4 in) of precipitation spread over 14 days, contributing to an average humidity level of 75%.

May Temperature in Bloomington

In May in Bloomington, the average temperature is 16°C (60°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 0°C (32°F). Travelers should be prepared for a wide range of temperatures, making it advisable to pack layers for changing conditions.

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

The chart illustrates May 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, May typically has an average temperature of 16°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Bloomington

In Bloomington in May, the total precipitation amount is 138 mm (5.4 in) over a span of 14 days.

May Precipitation Trends in Bloomington

The chart displays monthly precipitation patterns in Bloomington, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Bloomington, May typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Bloomington

In Bloomington in May humidity is 75%. With an average temperature of 16°C (60°F), this humidity feels like a warm, muggy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration breaks while traveling.

May Average Humidity in Bloomington

This chart illustrates the average monthly humidity levels in Bloomington, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Bloomington is approximately 75%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Bloomington

In Bloomington in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Bloomington in May, 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 May, the maximum UV index in Bloomington typically reaches 9, which falls under the very high exposure category.

Data source: Bloomington May 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 May 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 May’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 May’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