March Weather in Snohomish, United States

Last updated: June 24, 2025

In March, the average temperature in Snohomish, United States hovers around 6°C (44°F), making it a chilly yet intriguing time to explore. Be prepared for a range of temperatures; while it can dip to a brisk -6°C (22°F), you might also experience warmer days reaching up to 25°C (77°F). Visitors should anticipate 203 mm (8.0 in) of precipitation spread across 18 days, contributing to an average humidity level of 87%.

March Temperature in Snohomish

In March in Snohomish, the average temperature is 6°C (44°F). The maximum can reach 25°C (77°F), and the minimum can drop as low as -6°C (22°F). Be prepared for a wide range of temperatures, so pack layers for your trip!

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

The chart illustrates March temperature patterns in Snohomish, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Snohomish, March typically has an average temperature of 6°C (44°F), with highs reaching up to 25°C (77°F) and lows dropping to around -6°C (22°F).

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

March Precipitation in Snohomish

In Snohomish in March, the precipitation amount is 203 mm (8.0 in) over the course of 18 days.

March Precipitation Trends in Snohomish

The chart displays monthly precipitation patterns in Snohomish, 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 Snohomish, March typically receives around 203 mm (8.0 inches) of precipitation spread over approximately 18 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 Snohomish

In Snohomish in March humidity is 87%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable without proper layers and preparation.

March Average Humidity in Snohomish

This chart illustrates the average monthly humidity levels in Snohomish, 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 Snohomish is approximately 87%, 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 Snohomish

In Snohomish 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 Snohomish.

Maximum UV Index Levels in Snohomish for March

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

Data source: Snohomish 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 Snohomish Compares to Other Months

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

This table compares monthly weather conditions in Snohomish, 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 (40°F)	255 mm (10.0 inches)	86%	low
February Weather	3°C (38°F)	272 mm (10.7 inches)	86%	moderate
March Weather	6°C (44°F)	203 mm (8.0 inches)	87%	moderate
April Weather	9°C (49°F)	172 mm (6.8 inches)	84%	high
May Weather	13°C (55°F)	99 mm (3.9 inches)	81%	very high
June Weather	15°C (60°F)	89 mm (3.5 inches)	82%	very high
July Weather	18°C (64°F)	32 mm (1.3 inches)	79%	very high
August Weather	18°C (64°F)	32 mm (1.3 inches)	63%	very high
September Weather	15°C (59°F)	131 mm (5.2 inches)	62%	high
October Weather	9°C (49°F)	246 mm (9.7 inches)	83%	moderate
November Weather	7°C (44°F)	302 mm (11.9 inches)	89%	low
December Weather	4°C (39°F)	295 mm (11.6 inches)	88%	low