May Weather in Marengo, United States

Last updated: June 24, 2025

In Marengo, United States, the average temperature in May hovers around 17°C (62°F), with extremes ranging from a chilly 0°C (32°F) to a sweltering 35°C (95°F). Expect 158 mm (6.2 in) of precipitation spread over 16 days, contributing to an average humidity of 78%. Prepare for a month of varied weather!

May Temperature in Marengo

In May in Marengo, the average temperature is 17°C (62°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 0°C (32°F). Travelers should pack accordingly to enjoy the diverse climate during their visit.

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

The chart illustrates May temperature patterns in Marengo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marengo, May typically has an average temperature of 17°C (62°F), with highs reaching up to 35°C (95°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Marengo

In Marengo in May, the total precipitation amount is 158 mm (6.2 in) that occurs over a span of 16 days.

May Precipitation Trends in Marengo

The chart displays monthly precipitation patterns in Marengo, 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 Marengo, May typically receives around 158 mm (6.2 inches) of precipitation spread over approximately 16 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 Marengo

In Marengo in May, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.

May Average Humidity in Marengo

This chart illustrates the average monthly humidity levels in Marengo, 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 Marengo is approximately 78%, 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 Marengo

In Marengo 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 Marengo.

Maximum UV Index Levels in Marengo for May

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

Data source: Marengo 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 Marengo Compares to Other Months

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

This table compares monthly weather conditions in Marengo, 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 (22°F)	48 mm (1.9 inches)	81%	moderate
February Weather	-5°C (24°F)	54 mm (2.1 inches)	81%	moderate
March Weather	4°C (39°F)	78 mm (3.1 inches)	81%	high
April Weather	9°C (49°F)	84 mm (3.3 inches)	82%	very high
May Weather	17°C (62°F)	158 mm (6.2 inches)	78%	very high
June Weather	23°C (74°F)	136 mm (5.4 inches)	81%	extreme
July Weather	24°C (76°F)	79 mm (3.1 inches)	79%	very high
August Weather	23°C (73°F)	64 mm (2.5 inches)	77%	very high
September Weather	20°C (68°F)	123 mm (4.8 inches)	78%	very high
October Weather	11°C (53°F)	137 mm (5.4 inches)	78%	high
November Weather	3°C (38°F)	49 mm (1.9 inches)	87%	moderate
December Weather	-1°C (31°F)	43 mm (1.7 inches)	84%	moderate