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May Weather in Merrill, United States

Last updated: June 24, 2025

In Merrill, United States, the average temperature in May hovers around 13°C (56°F). However, be prepared for variations, as temperatures can dip to a minimum of -3°C (28°F) and soar up to a maximum of 34°C (94°F). During this month, you can expect about 43 mm (1.7 in) of precipitation over roughly 7 days, with an average humidity level of 72%.

May Temperature in Merrill

In May, in Merrill, the average temperature is 13°C (56°F). The maximum can reach 34°C (94°F), while the minimum can drop as low as -3°C (28°F). Be prepared for a wide range of temperatures when traveling during this time.

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 34°C (94°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec343541475565737262493933
Data source: Temperature data for Merrill 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 Merrill

In Merrill in May, the total precipitation amount is 43 mm (1.7 in) spread over a period of 7 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 43 mm (1.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec6573644643174417344954
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Merrill

In Merrill in May, humidity is 72%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and reminding travelers to stay hydrated and seek shade whenever possible.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111111109643
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.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)65 mm (2.5 inches)86%moderate
February Weather2°C (36°F)73 mm (2.9 inches)87%moderate
March Weather5°C (41°F)64 mm (2.5 inches)86%high
April Weather8°C (47°F)46 mm (1.8 inches)83%very high
May Weather13°C (56°F)43 mm (1.7 inches)72%extreme
June Weather18°C (65°F)17 mm (0.7 inches)67%extreme
July Weather23°C (74°F)4 mm (0.2 inches)56%extreme
August Weather22°C (72°F)4 mm (0.2 inches)42%very high
September Weather17°C (63°F)17 mm (0.7 inches)46%very high
October Weather10°C (50°F)34 mm (1.3 inches)67%high
November Weather4°C (40°F)49 mm (1.9 inches)86%moderate
December Weather0°C (33°F)54 mm (2.1 inches)86%moderate

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