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May Weather in Bloomington, United States

Last updated: June 24, 2025

In May, the average temperature in Bloomington, United States hovers around 18°C (64°F). However, be prepared for a range, as temperatures can dip to a chilly -1°C (31°F) or soar up to a scorching 35°C (95°F). This month brings about 159 mm (6.3 in) of precipitation across 16 days, and with an average humidity of 79%, you can expect a moist and varied climate.

May Temperature in Bloomington

In May in Bloomington, the average temperature is 18°C (64°F). Maximums can reach up to 35°C (95°F), while minimums can drop as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling during this time.

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 18°C (64°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec272942516474777470564034
Data source: Temperature data for Bloomington generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Bloomington

In Bloomington in May, the precipitation amount is 159 mm (6.3 in) over the course of 16 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 159 mm (6.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec656911311815911910594621256255
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Bloomington

In Bloomington in May, humidity is 79%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities more challenging but also creates a lush, vibrant atmosphere that's perfect for exploring local culture and scenery.

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 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098642
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.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)65 mm (2.5 inches)82%moderate
February Weather-1°C (30°F)69 mm (2.7 inches)83%moderate
March Weather5°C (42°F)113 mm (4.4 inches)84%high
April Weather11°C (51°F)118 mm (4.6 inches)85%very high
May Weather18°C (64°F)159 mm (6.3 inches)79%very high
June Weather23°C (74°F)119 mm (4.7 inches)82%extreme
July Weather25°C (77°F)105 mm (4.1 inches)80%very high
August Weather23°C (74°F)94 mm (3.7 inches)81%very high
September Weather21°C (70°F)62 mm (2.4 inches)80%very high
October Weather13°C (56°F)125 mm (4.9 inches)82%high
November Weather5°C (41°F)62 mm (2.4 inches)88%moderate
December Weather1°C (35°F)55 mm (2.2 inches)84%low

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