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March Weather in Bethesda, United States

Last updated: June 24, 2025

In March, the average temperature in Bethesda, United States hovers around 6°C (43°F). Expect a range from a chilly -13°C (8°F) to a mild 25°C (77°F). With 119 mm (4.7 in) of precipitation spread across approximately 13 days, you might want to pack an umbrella! Notably, the average humidity sits at a high 88%, adding a crispness to the air.

March Temperature in Bethesda

In March in Bethesda, the average temperature is 6°C (43°F), with maximums reaching up to 25°C (77°F) and minimums dropping as low as -13°C (8°F). Travellers should be prepared for a wide range of temperatures, making layered clothing essential for comfort.

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

The chart illustrates March temperature patterns in Bethesda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethesda, March typically has an average temperature of 6°C (43°F), with highs reaching up to 25°C (77°F) and lows dropping to around -13°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec323643526370757368584337
Data source: Temperature data for Bethesda 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 Bethesda

In Bethesda in March, the precipitation amount is 119 mm (4.7 in) spread over 13 days.

March Precipitation Trends in Bethesda

The chart displays monthly precipitation patterns in Bethesda, 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 Bethesda, March typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec931211191421411651339511412092114
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Bethesda

In Bethesda in March, humidity is 88%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and prompting you to seek warm shelter frequently.

March Average Humidity in Bethesda

This chart illustrates the average monthly humidity levels in Bethesda, 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 Bethesda is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Bethesda

In Bethesda 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 Bethesda, you can refer to this Hourly UV Index in Bethesda.

Maximum UV Index Levels in Bethesda for March

The chart shows the monthly maximum UV Index (UVI) for Bethesda 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 Bethesda typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Bethesda 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 Bethesda Compares to Other Months

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

This table compares monthly weather conditions in Bethesda, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)93 mm (3.7 inches)88%moderate
February Weather2°C (36°F)121 mm (4.8 inches)88%moderate
March Weather6°C (43°F)119 mm (4.7 inches)88%high
April Weather11°C (52°F)142 mm (5.6 inches)86%very high
May Weather17°C (63°F)141 mm (5.6 inches)82%very high
June Weather21°C (71°F)165 mm (6.5 inches)84%very high
July Weather24°C (75°F)133 mm (5.2 inches)82%very high
August Weather23°C (73°F)95 mm (3.7 inches)73%very high
September Weather20°C (68°F)114 mm (4.5 inches)73%very high
October Weather14°C (58°F)120 mm (4.7 inches)81%high
November Weather6°C (43°F)92 mm (3.6 inches)89%moderate
December Weather3°C (37°F)114 mm (4.5 inches)86%moderate

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