March Weather in Rockville, United States

Last updated: June 24, 2025

In March, the average temperature in Rockville, United States hovers around 6°C (43°F), with fluctuations ranging from a chilly -17°C (2°F) to a mild 23°C (74°F). Expect about 122 mm (4.8 in) of precipitation over approximately 13 days, contributing to an average humidity of 86%. Whether you're bundling up or seeking refuge from the rain, this month offers a true taste of the climate in Rockville.

March Temperature in Rockville

In March in Rockville, the average temperature is 6°C (43°F). The maximum can reach 23°C (74°F), and the minimum can be as low as -17°C (2°F). Be prepared for a wide range of temperatures when traveling during this month, ensuring you have both warm and cool clothing options.

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

The chart illustrates March temperature patterns in Rockville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockville, March typically has an average temperature of 6°C (43°F), with highs reaching up to 23°C (74°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec303343526574777570584236
Data source: Temperature data for Rockville 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 Rockville

In Rockville in March, the precipitation amount is 122 mm (4.8 in) recorded over a span of 13 days.

March Precipitation Trends in Rockville

The chart displays monthly precipitation patterns in Rockville, 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 Rockville, March typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8488122106140113103100651188775
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Rockville

In Rockville in March humidity is 86%. With an average temperature of 6°C (43°F), this humidity feels like a chilling blanket enveloping you, making outdoor exploration feel damp and uncomfortable.

March Average Humidity in Rockville

This chart illustrates the average monthly humidity levels in Rockville, 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 Rockville is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Rockville

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

Maximum UV Index Levels in Rockville for March

The chart shows the monthly maximum UV Index (UVI) for Rockville 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 Rockville typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Rockville 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 Rockville Compares to Other Months

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

This table compares monthly weather conditions in Rockville, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)84 mm (3.3 inches)87%moderate
February Weather1°C (33°F)88 mm (3.5 inches)85%moderate
March Weather6°C (43°F)122 mm (4.8 inches)86%high
April Weather11°C (53°F)106 mm (4.2 inches)84%very high
May Weather18°C (65°F)140 mm (5.5 inches)79%very high
June Weather24°C (75°F)113 mm (4.5 inches)82%extreme
July Weather25°C (78°F)103 mm (4.1 inches)79%very high
August Weather24°C (75°F)100 mm (3.9 inches)70%very high
September Weather21°C (71°F)64 mm (2.5 inches)69%very high
October Weather14°C (58°F)118 mm (4.6 inches)76%high
November Weather5°C (42°F)87 mm (3.4 inches)88%moderate
December Weather2°C (36°F)75 mm (3.0 inches)87%moderate

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