January Weather in Merrill, United States

Last updated: June 24, 2025

In January, the average temperature in Merrill, United States hovers around -4°C (25°F). While it can drop to a chilling -25°C (-13°F), temperatures can also rise to a balmy 15°C (59°F). Expect 55 mm (2.2 in) of precipitation over about 7 days, contributing to an average humidity of 88%.

January Temperature in Merrill

In January in Merrill, the average temperature is -4°C (25°F), with a maximum that can reach 15°C (59°F) and a minimum that can drop to -25°C (-13°F). Travelers should be prepared for a wide range of temperatures and dress accordingly.

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

The chart illustrates January 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, January typically has an average temperature of -4°C (25°F), with highs reaching up to 15°C (59°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Merrill

In Merrill in January, the precipitation amount is 55 mm (2.2 in) over the course of 7 days.

January Precipitation Trends in Merrill

The chart displays monthly precipitation patterns in Merrill, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Merrill, January typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Merrill

In Merrill in January, humidity is 88%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making outdoor excursions brisk and invigorating, yet challenging as you navigate the frosty air.

January Average Humidity in Merrill

This chart illustrates the average monthly humidity levels in Merrill, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Merrill is approximately 88%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Merrill

In Merrill in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Merrill, you can visit Hourly UV Index in Merrill.

Maximum UV Index Levels in Merrill for January

The chart shows the monthly maximum UV Index (UVI) for Merrill in January, 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 January, the maximum UV index in Merrill typically reaches 2, which falls under the low exposure category.

Data source: Merrill January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
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 Weather	2°C (35°F)	59 mm (2.3 inches)	85%	moderate
April Weather	7°C (46°F)	86 mm (3.4 inches)	86%	very high
May Weather	15°C (59°F)	114 mm (4.5 inches)	80%	very high
June Weather	20°C (69°F)	114 mm (4.5 inches)	80%	very high
July Weather	23°C (74°F)	70 mm (2.7 inches)	80%	very high
August Weather	22°C (71°F)	86 mm (3.4 inches)	80%	very high
September Weather	18°C (64°F)	96 mm (3.8 inches)	80%	high
October Weather	11°C (52°F)	117 mm (4.6 inches)	84%	moderate
November Weather	3°C (38°F)	59 mm (2.3 inches)	89%	moderate
December Weather	-1°C (31°F)	61 mm (2.4 inches)	86%	low