March Weather in Mercer, United States

Last updated: August 27, 2025

In March, the average temperature in Mercer, United States hovers around -3°C (27°F), but don't be surprised if the mercury dips as low as -27°C (-16°F) or rises to a pleasant 17°C (63°F). Expect 53 mm (2.1 in) of precipitation over about 8 days, with humidity levels lingering at a high 89%. Bundle up and prepare for a varied weather experience!

March Temperature in Mercer

In March in Mercer, the average temperature is -3°C (27°F), with maximums reaching up to 17°C (63°F) and minimums plummeting as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and lighter clothing for varied weather conditions.

March Weather in Mercer: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Mercer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mercer, March typically has an average temperature of -3°C (27°F), with highs reaching up to 17°C (63°F) and lows dropping to around -27°C (-16°F).

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

March Precipitation in Mercer

In Mercer in March, the total precipitation amount is 53 mm (2.1 in) over the course of 8 days.

March Precipitation Trends in Mercer

The chart displays monthly precipitation patterns in Mercer, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Mercer, March typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Mercer

In Mercer in March, humidity is 89%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and breath a visible frost as you navigate through the wintery landscape.

March Average Humidity in Mercer

This chart illustrates the average monthly humidity levels in Mercer, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Mercer is approximately 89%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Mercer

In Mercer in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Mercer.

Maximum UV Index Levels in Mercer for March

The chart shows the monthly maximum UV Index (UVI) for Mercer in March, 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 March, the maximum UV index in Mercer typically reaches 5, which falls under the moderate exposure category.

Data source: Mercer March 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 March Weather in Mercer Compares to Other Months

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

This table compares monthly weather conditions in Mercer, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	36 mm (1.4 inches)	93%	low
February Weather	-10°C (14°F)	51 mm (2.0 inches)	93%	moderate
March Weather	-3°C (27°F)	53 mm (2.1 inches)	89%	moderate
April Weather	3°C (37°F)	92 mm (3.6 inches)	85%	high
May Weather	12°C (54°F)	100 mm (3.9 inches)	76%	very high
June Weather	18°C (65°F)	121 mm (4.8 inches)	71%	very high
July Weather	20°C (69°F)	110 mm (4.3 inches)	70%	very high
August Weather	18°C (65°F)	126 mm (5.0 inches)	71%	very high
September Weather	14°C (58°F)	98 mm (3.9 inches)	73%	high
October Weather	7°C (44°F)	118 mm (4.7 inches)	81%	moderate
November Weather	-2°C (29°F)	58 mm (2.3 inches)	87%	moderate
December Weather	-7°C (20°F)	70 mm (2.8 inches)	91%	low