March Weather in Monmouth, United States

Last updated: June 24, 2025

In March, the average temperature in Monmouth, United States hovers around 5°C (41°F). This month can bring some extreme weather, with minimums plunging to -19°C (-2°F) and maximums reaching up to 23°C (74°F). Expect 102 mm (4.0 in) of precipitation spread over 11 days, and a notable average humidity of 81% will keep the atmosphere quite damp.

March Temperature in Monmouth

In March in Monmouth, the average temperature is 5°C (41°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop as low as -19°C (-2°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates March temperature patterns in Monmouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monmouth, March typically has an average temperature of 5°C (41°F), with highs reaching up to 23°C (74°F) and lows dropping to around -19°C (-2°F).

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

March Precipitation in Monmouth

In Monmouth in March, the precipitation amount is 102 mm (4.0 in) over the course of 11 days.

March Precipitation Trends in Monmouth

The chart displays monthly precipitation patterns in Monmouth, 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 Monmouth, March typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Monmouth

In Monmouth in March, humidity is 81%. With an average temperature of 5°C (41°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor exploration uncomfortable and requiring warm, waterproof clothing to stay comfortable while traveling.

March Average Humidity in Monmouth

This chart illustrates the average monthly humidity levels in Monmouth, 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 Monmouth is approximately 81%, 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 Monmouth

In Monmouth in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Monmouth, you can refer to this Hourly UV Index in Monmouth.

Maximum UV Index Levels in Monmouth for March

The chart shows the monthly maximum UV Index (UVI) for Monmouth 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 Monmouth typically reaches 6, which falls under the high exposure category.

Data source: Monmouth 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 Monmouth Compares to Other Months

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

This table compares monthly weather conditions in Monmouth, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	56 mm (2.2 inches)	81%	moderate
February Weather	-2°C (28°F)	63 mm (2.5 inches)	81%	moderate
March Weather	5°C (41°F)	102 mm (4.0 inches)	81%	high
April Weather	10°C (51°F)	99 mm (3.9 inches)	82%	very high
May Weather	17°C (64°F)	166 mm (6.6 inches)	78%	very high
June Weather	23°C (75°F)	138 mm (5.4 inches)	81%	extreme
July Weather	25°C (78°F)	93 mm (3.7 inches)	79%	very high
August Weather	23°C (75°F)	64 mm (2.5 inches)	77%	very high
September Weather	21°C (69°F)	99 mm (3.9 inches)	78%	very high
October Weather	13°C (55°F)	126 mm (5.0 inches)	78%	high
November Weather	4°C (40°F)	51 mm (2.0 inches)	87%	moderate
December Weather	1°C (33°F)	49 mm (1.9 inches)	84%	low