March Weather in Astoria, United States

Last updated: June 24, 2025

In Astoria, United States, the average temperature in March is a brisk 6°C (43°F). Expect the mercury to dip as low as -18°C (0°F) and rise to a pleasant 25°C (77°F). With around 127 mm (5.0 in) of precipitation over 11 days, you might want to carry an umbrella. The air is often quite humid, with an average humidity of 81%, adding a touch of moisture to the chilly atmosphere.

March Temperature in Astoria

In March in Astoria, the average temperature is 6°C (43°F). The maximum can reach 25°C (77°F), while the minimum can drop as low as -18°C (0°F). It's essential to pack for a wide range of temperatures when traveling to Astoria during this time.

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

The chart illustrates March temperature patterns in Astoria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Astoria, March typically has an average temperature of 6°C (43°F), with highs reaching up to 25°C (77°F) and lows dropping to around -18°C (0°F).

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

March Precipitation in Astoria

In Astoria in March, the precipitation amount is 127 mm (5.0 in), occurring over 11 days.

March Precipitation Trends in Astoria

The chart displays monthly precipitation patterns in Astoria, 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 Astoria, March typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 11 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 Astoria

In Astoria in March, humidity is 81%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill enveloping you, making every step outside seem heavier and less inviting for traveling.

March Average Humidity in Astoria

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

In Astoria in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Astoria.

Maximum UV Index Levels in Astoria for March

The chart shows the monthly maximum UV Index (UVI) for Astoria 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 Astoria typically reaches 7, which falls under the high exposure category.

Data source: Astoria 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 Astoria Compares to Other Months

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

This table compares monthly weather conditions in Astoria, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	62 mm (2.4 inches)	81%	moderate
February Weather	-1°C (31°F)	66 mm (2.6 inches)	81%	moderate
March Weather	6°C (43°F)	127 mm (5.0 inches)	81%	high
April Weather	11°C (52°F)	110 mm (4.3 inches)	82%	very high
May Weather	18°C (65°F)	164 mm (6.5 inches)	78%	very high
June Weather	24°C (75°F)	135 mm (5.3 inches)	81%	extreme
July Weather	25°C (78°F)	103 mm (4.0 inches)	79%	very high
August Weather	24°C (75°F)	89 mm (3.5 inches)	77%	very high
September Weather	21°C (71°F)	71 mm (2.8 inches)	78%	very high
October Weather	14°C (57°F)	108 mm (4.3 inches)	78%	high
November Weather	5°C (41°F)	59 mm (2.3 inches)	87%	moderate
December Weather	2°C (35°F)	51 mm (2.0 inches)	84%	low