March Weather in Mattawa, United States

Last updated: June 24, 2025

In March, the average temperature in Mattawa, United States hovers around 6°C (43°F), with a range that can dip to a chilling -14°C (7°F) or rise to a pleasant 21°C (70°F). Visitors should prepare for 27 mm (1.1 in) of precipitation over roughly 7 days, paired with an average humidity of 87%, ensuring a uniquely brisk and refreshing atmosphere.

March Temperature in Mattawa

In March in Mattawa, the average temperature is 6°C (43°F), with maximums reaching 21°C (70°F) and minimums dropping as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures, ranging from chilly to mild.

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

The chart illustrates March temperature patterns in Mattawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mattawa, March typically has an average temperature of 6°C (43°F), with highs reaching up to 21°C (70°F) and lows dropping to around -14°C (7°F).

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

March Precipitation in Mattawa

In Mattawa in March, the precipitation amount is 27 mm (1.1 in) accumulated over 7 days.

March Precipitation Trends in Mattawa

The chart displays monthly precipitation patterns in Mattawa, 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 Mattawa, March typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 7 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 Mattawa

In Mattawa in March, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.

March Average Humidity in Mattawa

This chart illustrates the average monthly humidity levels in Mattawa, 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 Mattawa 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 Mattawa

In Mattawa 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 Mattawa.

Maximum UV Index Levels in Mattawa for March

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

Data source: Mattawa 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 Mattawa Compares to Other Months

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

This table compares monthly weather conditions in Mattawa, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	45 mm (1.8 inches)	86%	low
February Weather	0°C (33°F)	43 mm (1.7 inches)	86%	moderate
March Weather	6°C (43°F)	27 mm (1.1 inches)	87%	moderate
April Weather	11°C (52°F)	26 mm (1.0 inches)	84%	high
May Weather	17°C (63°F)	17 mm (0.7 inches)	81%	very high
June Weather	21°C (70°F)	7 mm (0.3 inches)	82%	very high
July Weather	25°C (77°F)	1 mm (0.0 inches)	79%	very high
August Weather	25°C (77°F)	5 mm (0.2 inches)	63%	very high
September Weather	19°C (66°F)	14 mm (0.5 inches)	62%	high
October Weather	11°C (51°F)	33 mm (1.3 inches)	83%	moderate
November Weather	4°C (40°F)	35 mm (1.4 inches)	89%	moderate
December Weather	0°C (33°F)	38 mm (1.5 inches)	88%	low