March Weather in Bellingham, United States

Last updated: June 24, 2025

In March, the average temperature in Bellingham, United States hovers around 6°C (44°F), with a minimum dipping to -1°C (31°F) and a maximum reaching up to 20°C (67°F). Expect 156 mm (6.2 in) of precipitation spread over 17 days, contributing to a high average humidity of 86%. Prepare for a cool and damp month!

March Temperature in Bellingham

In March in Bellingham, the average temperature is 6°C (44°F). Maximums can reach 20°C (67°F), while minimums can drop to as low as -1°C (31°F). This temperature range makes Bellingham an ideal destination for travelers who enjoy mild weather and the chance to experience both cool and warmer days.

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

The chart illustrates March temperature patterns in Bellingham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bellingham, March typically has an average temperature of 6°C (44°F), with highs reaching up to 20°C (67°F) and lows dropping to around -1°C (31°F).

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

March Precipitation in Bellingham

In Bellingham in March, the precipitation amount reaches 156 mm (6.2 in) over the course of 17 days.

March Precipitation Trends in Bellingham

The chart displays monthly precipitation patterns in Bellingham, 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 Bellingham, March typically receives around 156 mm (6.2 inches) of precipitation spread over approximately 17 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 Bellingham

In Bellingham in March, humidity is 86%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities quite uncomfortable for traveling.

March Average Humidity in Bellingham

This chart illustrates the average monthly humidity levels in Bellingham, 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 Bellingham is approximately 86%, 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 Bellingham

In Bellingham 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 Bellingham.

Maximum UV Index Levels in Bellingham for March

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

Data source: Bellingham 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 Bellingham Compares to Other Months

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

This table compares monthly weather conditions in Bellingham, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	199 mm (7.8 inches)	86%	low
February Weather	4°C (39°F)	185 mm (7.3 inches)	85%	moderate
March Weather	6°C (44°F)	156 mm (6.2 inches)	86%	moderate
April Weather	9°C (48°F)	127 mm (5.0 inches)	86%	high
May Weather	12°C (53°F)	76 mm (3.0 inches)	81%	very high
June Weather	15°C (59°F)	58 mm (2.3 inches)	83%	very high
July Weather	17°C (63°F)	27 mm (1.1 inches)	84%	very high
August Weather	18°C (64°F)	19 mm (0.8 inches)	77%	very high
September Weather	15°C (60°F)	125 mm (4.9 inches)	76%	high
October Weather	11°C (51°F)	186 mm (7.3 inches)	88%	moderate
November Weather	8°C (46°F)	261 mm (10.3 inches)	87%	low
December Weather	5°C (41°F)	227 mm (8.9 inches)	87%	low