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January Weather in Bellevue, United States

Last updated: June 24, 2025

In January, the average temperature in Bellevue, United States hovers around -3°C (26°F), with a chilly minimum reaching as low as -25°C (-14°F) and an occasional high of 15°C (59°F). Expect about 68 mm (2.7 in) of precipitation spread over 11 days, accompanied by a high average humidity of 87%. Bundle up and prepare for a brisk adventure!

January Temperature in Bellevue

In January in Bellevue, the average temperature is -3°C (26°F). The maximum can reach 15°C (59°F) and the minimum can be as low as -25°C (-14°F). Travelers should be prepared for a wide range of temperatures and dress accordingly to ensure comfort during their visit.

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 -3°C (26°F), with highs reaching up to 15°C (59°F) and lows dropping to around -25°C (-14°F).
JanFebMarAprMayJunJulAugSepOctNovDec262737476070757265533932
Data source: Temperature data for Bellevue generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Bellevue

In Bellevue in January, the total precipitation amount is 68 mm (2.7 in) spread over a duration of 11 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 68 mm (2.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6874759114010296711011286863
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Bellevue

In Bellevue in January, humidity is 87%. With an average temperature of -3°C (26°F), this humidity feels like walking through a thick fog, making travels uncomfortable and adding a chill that seeps into your bones.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%87%82%81%78%79%80%82%87%86%
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 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Bellevue, you can visit Hourly UV Index in Bellevue.

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 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
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.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)68 mm (2.7 inches)87%low
February Weather-3°C (27°F)74 mm (2.9 inches)87%moderate
March Weather3°C (37°F)75 mm (3.0 inches)86%high
April Weather8°C (47°F)91 mm (3.6 inches)87%very high
May Weather16°C (60°F)140 mm (5.5 inches)82%very high
June Weather21°C (70°F)102 mm (4.0 inches)81%very high
July Weather24°C (75°F)96 mm (3.8 inches)78%very high
August Weather22°C (72°F)71 mm (2.8 inches)79%very high
September Weather19°C (66°F)101 mm (4.0 inches)79%high
October Weather12°C (53°F)127 mm (5.0 inches)82%moderate
November Weather4°C (39°F)68 mm (2.7 inches)87%moderate
December Weather0°C (33°F)63 mm (2.5 inches)86%low

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