January Weather in Bellevue, United States

Last updated: June 24, 2025

In January, the average temperature in Bellevue, United States hovers around -6°C (22°F). While temperatures can drop to a chilling -32°C (-26°F), they can also peak at a brisk 11°C (52°F). Expect 52 mm (2.1 in) of precipitation spread over approximately 8 days, and brace yourself for an average humidity level of about 84%.

January Temperature in Bellevue

In January in Bellevue, the average temperature is -6°C (22°F). Maximum temperatures can reach 11°C (52°F), while minimums can plunge as low as -32°C (-26°F). Travelers should prepare for chilly conditions and dress warmly when visiting during this time.

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

The chart illustrates January temperature patterns in Bellevue, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bellevue, January typically has an average temperature of -6°C (22°F), with highs reaching up to 11°C (52°F) and lows dropping to around -32°C (-26°F).

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

January Precipitation in Bellevue

In Bellevue in January, the total precipitation amount is 52 mm (2.1 in) over the course of 8 days.

January Precipitation Trends in Bellevue

The chart displays monthly precipitation patterns in Bellevue, 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 Bellevue, January typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Bellevue

In Bellevue in January humidity is 84%. With an average temperature of -6°C (22°F), this humidity feels like an unpleasant chill that seeps into your bones, making travel feel much more uncomfortable and harsh than the temperature alone suggests.

January Average Humidity in Bellevue

This chart illustrates the average monthly humidity levels in Bellevue, 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 Bellevue is approximately 84%, 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 Bellevue

In Bellevue 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 Bellevue, you can check the information here.

Maximum UV Index Levels in Bellevue for January

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

Data source: Bellevue 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 Bellevue Compares to Other Months

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

This table compares monthly weather conditions in Bellevue, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	52 mm (2.1 inches)	84%	moderate
February Weather	-5°C (24°F)	59 mm (2.3 inches)	85%	moderate
March Weather	3°C (38°F)	69 mm (2.7 inches)	84%	high
April Weather	9°C (48°F)	91 mm (3.6 inches)	83%	very high
May Weather	16°C (61°F)	150 mm (5.9 inches)	75%	very high
June Weather	22°C (72°F)	129 mm (5.1 inches)	79%	very high
July Weather	24°C (76°F)	78 mm (3.1 inches)	75%	very high
August Weather	22°C (72°F)	103 mm (4.0 inches)	69%	very high
September Weather	19°C (67°F)	116 mm (4.6 inches)	74%	very high
October Weather	11°C (52°F)	115 mm (4.5 inches)	79%	moderate
November Weather	3°C (37°F)	47 mm (1.8 inches)	88%	moderate
December Weather	-1°C (31°F)	45 mm (1.8 inches)	82%	low