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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 15°C (59°F). However, prepare for a range of temperatures; it can dip to a brisk -3°C (27°F) or rise to a warm 34°C (94°F). Expect around 114 mm (4.5 in) of precipitation spread over about 13 days, contributing to an average humidity of 80%. Stay ready for a mix of weather!

May Temperature in Merrill

In May in Merrill, the average temperature is 15°C (59°F). Maximum temperatures can reach 34°C (94°F), while minimums can dip as low as -3°C (27°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 15°C (59°F), with highs reaching up to 34°C (94°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec242535455969747164523731
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 114 mm (4.5 in), distributed over the course of 13 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 114 mm (4.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec565959861141147086961175962
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 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%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 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 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
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 Weather-4°C (25°F)55 mm (2.2 inches)88%low
February Weather-4°C (26°F)59 mm (2.3 inches)87%moderate
March Weather2°C (35°F)59 mm (2.3 inches)85%moderate
April Weather7°C (46°F)86 mm (3.4 inches)86%very high
May Weather15°C (59°F)114 mm (4.5 inches)80%very high
June Weather20°C (69°F)114 mm (4.5 inches)80%very high
July Weather23°C (74°F)70 mm (2.7 inches)80%very high
August Weather22°C (71°F)86 mm (3.4 inches)80%very high
September Weather18°C (64°F)96 mm (3.8 inches)80%high
October Weather11°C (52°F)117 mm (4.6 inches)84%moderate
November Weather3°C (38°F)59 mm (2.3 inches)89%moderate
December Weather-1°C (31°F)61 mm (2.4 inches)86%low

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