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April Weather in Potomac, United States

Last updated: June 24, 2025

In April, the average temperature in Potomac, United States hovers around 11°C (52°F). However, temperatures can vary significantly, with a minimum of -7°C (20°F) and soaring up to 29°C (85°F). Expect about 118 mm (4.6 in) of precipitation spread over 11 days, accompanied by high average humidity at 85%. Be prepared for a mix of weather as you explore this unique locale!

April Temperature in Potomac

In April in Potomac, the average temperature is 11°C (52°F). Maximums can reach 29°C (85°F), while minimums can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

April Weather in Potomac: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Potomac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Potomac, April typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (85°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec283142526474777470574135
Data source: Temperature data for Potomac 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.

April Precipitation in Potomac

In Potomac in April, the precipitation amount is 118 mm (4.6 in) over the course of 11 days.

April Precipitation Trends in Potomac

The chart displays monthly precipitation patterns in Potomac, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Potomac, April typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec777711111814711287110761197459
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Potomac

In Potomac in April, humidity is 85%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel quite uncomfortable as the air feels heavy and can sap your energy.

April Average Humidity in Potomac

This chart illustrates the average monthly humidity levels in Potomac, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Potomac is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Potomac

In Potomac in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Potomac.

Maximum UV Index Levels in Potomac for April

The chart shows the monthly maximum UV Index (UVI) for Potomac in April, 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 April, the maximum UV index in Potomac typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Potomac April 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 April Weather in Potomac Compares to Other Months

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

This table compares monthly weather conditions in Potomac, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)77 mm (3.0 inches)82%moderate
February Weather-1°C (31°F)77 mm (3.0 inches)83%moderate
March Weather6°C (43°F)111 mm (4.4 inches)84%high
April Weather11°C (52°F)118 mm (4.6 inches)85%very high
May Weather18°C (65°F)147 mm (5.8 inches)79%very high
June Weather23°C (74°F)112 mm (4.4 inches)82%extreme
July Weather25°C (77°F)87 mm (3.4 inches)80%very high
August Weather23°C (74°F)110 mm (4.3 inches)81%very high
September Weather21°C (70°F)76 mm (3.0 inches)80%very high
October Weather14°C (57°F)119 mm (4.7 inches)82%high
November Weather5°C (41°F)74 mm (2.9 inches)88%moderate
December Weather2°C (36°F)59 mm (2.3 inches)84%low

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