January Weather in Astoria, United States

Last updated: June 24, 2025

In Astoria, United States, the average temperature in January hovers around -2°C (28°F). However, temperatures can fluctuate dramatically, with minimums plummeting to -28°C (-19°F) and maxima reaching up to 15°C (60°F). During this month, expect about 62 mm (2.4 in) of precipitation spread over 7 days, accompanied by a high average humidity of 81%. Prepare accordingly for the chilly and wet conditions!

January Temperature in Astoria

In January in Astoria, the average temperature is -2°C (28°F), with maximums reaching 15°C (60°F) and minimums dropping as low as -28°C (-19°F). Travelers should be prepared for a wide range of temperatures, from chilly days to potentially very cold nights.

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

The chart illustrates January 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, January typically has an average temperature of -2°C (28°F), with highs reaching up to 15°C (60°F) and lows dropping to around -28°C (-19°F).

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

January Precipitation in Astoria

In Astoria in January, the total precipitation amount is 62 mm (2.4 in) observed over a span of 7 days.

January Precipitation Trends in Astoria

The chart displays monthly precipitation patterns in Astoria, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Astoria, January typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Astoria

In Astoria in January, humidity is 81%. With an average temperature of -2°C (28°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm and dry.

January Average Humidity in Astoria

This chart illustrates the average monthly humidity levels in Astoria, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Astoria is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Astoria

In Astoria in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Astoria, you can check the information here.

Maximum UV Index Levels in Astoria for January

The chart shows the monthly maximum UV Index (UVI) for Astoria in January, 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 January, the maximum UV index in Astoria typically reaches 3, which falls under the moderate exposure category.

Data source: Astoria January 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 January 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 January’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 January’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