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May Weather in Belleville, United States

Last updated: June 24, 2025

In May, the average temperature in Belleville, United States is a comfortable 16°C (62°F). However, temperatures can fluctuate widely, with a minimum of -1°C (30°F) and a maximum reaching 31°C (89°F). During this month, expect about 112 mm (4.4 in) of precipitation over approximately 15 days, contributing to an average humidity level of 80%.

May Temperature in Belleville

In May in Belleville, the average temperature is 16°C (62°F), with maximums reaching up to 31°C (89°F) and minimums dropping as low as -1°C (30°F). This diverse range of temperatures makes Belleville an exciting destination for travelers, offering both warm days and cooler nights to enjoy.

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

The chart illustrates May temperature patterns in Belleville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belleville, May typically has an average temperature of 16°C (62°F), with highs reaching up to 31°C (89°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec313440516170767467574135
Data source: Temperature data for Belleville 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 Belleville

In Belleville in May, the precipitation amount is 112 mm (4.4 in) spread over a period of 15 days.

May Precipitation Trends in Belleville

The chart displays monthly precipitation patterns in Belleville, 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 Belleville, May typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec621029010111292109861221068089
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Belleville

In Belleville in May humidity is 80%. With an average temperature of 16°C (62°F), this humidity feels like a warm, muggy embrace, making travel slightly uncomfortable as the air hangs heavy, necessitating frequent hydration and light clothing to stay cool and refreshed.

May Average Humidity in Belleville

This chart illustrates the average monthly humidity levels in Belleville, 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 Belleville is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Belleville

In Belleville 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 Belleville.

Maximum UV Index Levels in Belleville for May

The chart shows the monthly maximum UV Index (UVI) for Belleville 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 Belleville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Belleville 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 Belleville Compares to Other Months

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

This table compares monthly weather conditions in Belleville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)62 mm (2.4 inches)89%moderate
February Weather1°C (34°F)102 mm (4.0 inches)90%moderate
March Weather5°C (41°F)90 mm (3.5 inches)89%high
April Weather10°C (51°F)101 mm (4.0 inches)88%very high
May Weather16°C (62°F)112 mm (4.4 inches)80%very high
June Weather21°C (70°F)92 mm (3.6 inches)79%very high
July Weather24°C (76°F)109 mm (4.3 inches)74%very high
August Weather23°C (74°F)86 mm (3.4 inches)64%very high
September Weather19°C (67°F)122 mm (4.8 inches)67%very high
October Weather14°C (57°F)106 mm (4.2 inches)81%high
November Weather5°C (42°F)80 mm (3.2 inches)89%moderate
December Weather2°C (36°F)89 mm (3.5 inches)88%low

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