May Weather in Merrill, United States

Last updated: June 24, 2025

In May, the average temperature in Merrill, United States hovers around 13°C (56°F). Expect minimums dipping to -3°C (27°F) and maxima reaching a warm 33°C (92°F). With an average humidity of 77%, you can anticipate 100 mm (3.9 in) of precipitation spread across about 12 days. Stay prepared for a mix of chilly and warm spells!

May Temperature in Merrill

In May in Merrill, the average temperature is 13°C (56°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip to as low as -3°C (27°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates May temperature patterns in Merrill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merrill, May typically has an average temperature of 13°C (56°F), with highs reaching up to 33°C (92°F) and lows dropping to around -3°C (27°F).

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

May Precipitation in Merrill

In Merrill in May, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.

May Precipitation Trends in Merrill

The chart displays monthly precipitation patterns in Merrill, 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 Merrill, May typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Merrill

In Merrill in May humidity is 77%. With average temperature 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities sweaty and uncomfortable.

May Average Humidity in Merrill

This chart illustrates the average monthly humidity levels in Merrill, 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 Merrill is approximately 77%, 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 Merrill

In Merrill in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Merrill.

Maximum UV Index Levels in Merrill for May

The chart shows the monthly maximum UV Index (UVI) for Merrill 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 Merrill typically reaches 8, which falls under the very high exposure category.

Data source: Merrill 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 Merrill Compares to Other Months

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

This table compares monthly weather conditions in Merrill, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	32 mm (1.3 inches)	89%	low
February Weather	-9°C (16°F)	51 mm (2.0 inches)	90%	moderate
March Weather	-1°C (30°F)	49 mm (1.9 inches)	87%	moderate
April Weather	5°C (41°F)	98 mm (3.8 inches)	84%	high
May Weather	13°C (56°F)	100 mm (3.9 inches)	77%	very high
June Weather	19°C (66°F)	99 mm (3.9 inches)	75%	very high
July Weather	21°C (70°F)	119 mm (4.7 inches)	74%	very high
August Weather	19°C (67°F)	117 mm (4.6 inches)	73%	very high
September Weather	15°C (60°F)	85 mm (3.3 inches)	78%	high
October Weather	8°C (46°F)	116 mm (4.6 inches)	84%	moderate
November Weather	-1°C (31°F)	49 mm (1.9 inches)	89%	moderate
December Weather	-6°C (22°F)	53 mm (2.1 inches)	87%	low