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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 -1°C (30°F). Expect chilly conditions with minimums dipping to -20°C (-3°F) and maximums reaching a mild 15°C (60°F). Be prepared for 49 mm (1.9 in) of precipitation spread over about 10 days, and with an average humidity of 85%, things might feel quite damp.

March Temperature in Bellevue

In March in Bellevue, the average temperature is -1°C (30°F), with a maximum that can reach 15°C (60°F) and a minimum that can drop as low as -20°C (-3°F). Be sure to pack layers to stay comfortable in varying temperatures while exploring the beauty of Bellevue.

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 -1°C (30°F), with highs reaching up to 15°C (60°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec192130374758686556413019
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 total precipitation amount is 49 mm (1.9 in) over the course of 10 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 49 mm (1.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec58804943522551721344345
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 85%. With an average temperature of -1°C (30°F), this humidity feels like a heavy, damp blanket that envelops you, making even short excursions outside feel chilling and uncomfortable.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%85%76%66%62%53%42%46%64%83%87%
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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589111211109643
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-7°C (20°F)58 mm (2.3 inches)91%moderate
February Weather-6°C (22°F)80 mm (3.1 inches)92%moderate
March Weather-1°C (30°F)49 mm (1.9 inches)85%very high
April Weather3°C (38°F)43 mm (1.7 inches)76%very high
May Weather8°C (47°F)52 mm (2.0 inches)66%extreme
June Weather15°C (58°F)25 mm (1.0 inches)62%extreme
July Weather20°C (68°F)5 mm (0.2 inches)53%extreme
August Weather19°C (66°F)17 mm (0.7 inches)42%very high
September Weather13°C (56°F)21 mm (0.8 inches)46%very high
October Weather5°C (41°F)34 mm (1.3 inches)64%high
November Weather-1°C (30°F)43 mm (1.7 inches)83%moderate
December Weather-7°C (20°F)45 mm (1.8 inches)87%moderate

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