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March Weather in Bellevue, United States

Last updated: June 24, 2025

In March, the average temperature in Bellevue, United States hovers around 4°C (40°F). Be prepared for temperature variations, as it can dip as low as -13°C (9°F) and soar up to 23°C (73°F). This month also brings about 92 mm (3.6 in) of precipitation over approximately 12 days, contributing to an average humidity level of 87%. Stay cozy and plan accordingly!

March Temperature in Bellevue

In March in Bellevue, the average temperature is 4°C (40°F), with maximums reaching up to 23°C (73°F) and minimums dropping as low as -13°C (9°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates March 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, March typically has an average temperature of 4°C (40°F), with highs reaching up to 23°C (73°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec293239496170757368574235
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.

March Precipitation in Bellevue

In Bellevue in March, the precipitation amount is 92 mm (3.6 in) over the course of 12 days.

March Precipitation Trends in Bellevue

The chart displays monthly precipitation patterns in Bellevue, 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 Bellevue, March typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7688921111251191248375989476
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Bellevue

In Bellevue in March humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

March Average Humidity in Bellevue

This chart illustrates the average monthly humidity levels in Bellevue, 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 Bellevue is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Bellevue

In Bellevue in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bellevue, you can refer to this Hourly UV Index in Bellevue.

Maximum UV Index Levels in Bellevue for March

The chart shows the monthly maximum UV Index (UVI) for Bellevue 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 Bellevue typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Bellevue 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 Bellevue Compares to Other Months

Weather in Bellevue varies notably across the year, with each month offering distinct climate conditions. This page compares March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)76 mm (3.0 inches)88%moderate
February Weather0°C (32°F)87 mm (3.4 inches)87%moderate
March Weather4°C (40°F)92 mm (3.6 inches)87%high
April Weather10°C (49°F)111 mm (4.4 inches)87%very high
May Weather16°C (61°F)125 mm (4.9 inches)81%very high
June Weather21°C (71°F)119 mm (4.7 inches)82%very high
July Weather24°C (75°F)124 mm (4.9 inches)81%very high
August Weather23°C (73°F)83 mm (3.3 inches)78%very high
September Weather20°C (68°F)75 mm (2.9 inches)78%very high
October Weather14°C (57°F)98 mm (3.9 inches)82%high
November Weather5°C (42°F)93 mm (3.7 inches)89%moderate
December Weather2°C (35°F)76 mm (3.0 inches)86%low

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