nomadseason

March Weather in Mount Vernon, United States

Last updated: June 24, 2025

In Mount Vernon, United States, the average temperature in March hovers around 10°C (49°F), with a minimum drop to -10°C (13°F) and a peak of 28°C (82°F). Expect about 139 mm (5.5 in) of precipitation spread over 13 days, complemented by a high average humidity of 87%. Prepare for a month of dynamic weather!

March Temperature in Mount Vernon

In March in Mount Vernon, the average temperature is 10°C (49°F). Maximums can reach 28°C (82°F), while minimums can drop as low as -10°C (13°F). Be prepared for a wide range of weather conditions if you're planning to travel during this time.

March Weather in Mount Vernon: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Mount Vernon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Vernon, March typically has an average temperature of 10°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -10°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec374349576773787671614642
Data source: Temperature data for Mount Vernon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Mount Vernon

In Mount Vernon in March, the precipitation amount is 139 mm (5.5 in) over the course of 13 days.

March Precipitation Trends in Mount Vernon

The chart displays monthly precipitation patterns in Mount Vernon, 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 Mount Vernon, March typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9918213913512814910511712111880139
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Mount Vernon

In Mount Vernon in March, humidity is 87%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions somewhat uncomfortable and requiring layered clothing to navigate the cold, clammy air effectively.

March Average Humidity in Mount Vernon

This chart illustrates the average monthly humidity levels in Mount Vernon, 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 Mount Vernon is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%84%84%83%79%66%67%76%89%88%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Mount Vernon

In Mount Vernon in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Mount Vernon.

Maximum UV Index Levels in Mount Vernon for March

The chart shows the monthly maximum UV Index (UVI) for Mount Vernon 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 Mount Vernon typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679111111109753
Data source: Mount Vernon 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 Mount Vernon Compares to Other Months

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

This table compares monthly weather conditions in Mount Vernon, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)99 mm (3.9 inches)88%moderate
February Weather6°C (43°F)182 mm (7.2 inches)88%high
March Weather10°C (49°F)139 mm (5.5 inches)87%high
April Weather14°C (57°F)135 mm (5.3 inches)84%very high
May Weather20°C (68°F)128 mm (5.0 inches)84%extreme
June Weather23°C (73°F)148 mm (5.8 inches)83%extreme
July Weather25°C (78°F)105 mm (4.1 inches)79%extreme
August Weather24°C (76°F)117 mm (4.6 inches)66%very high
September Weather22°C (72°F)121 mm (4.7 inches)67%very high
October Weather16°C (61°F)118 mm (4.6 inches)76%high
November Weather8°C (46°F)80 mm (3.1 inches)89%moderate
December Weather6°C (43°F)139 mm (5.5 inches)88%moderate

Compare Mount Vernon's Climate with Cities Worldwide