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April Weather in Ashburn, United States

Last updated: June 24, 2025

In April, the average temperature in Ashburn, United States is a comfortable 19°C (67°F). Expect a range that can dip to a brisk 2°C (35°F) and soar to a toasty 35°C (95°F). With 104 mm (4.1 in) of precipitation over 8 days, staying dry might be a challenge. The average humidity is around 76%, adding a touch of warmth to the atmosphere.

April Temperature in Ashburn

In April in Ashburn, the average temperature is 19°C (67°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 2°C (35°F). This variability makes it essential for travelers to pack accordingly for both warm and cool conditions.

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

The chart illustrates April temperature patterns in Ashburn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ashburn, April typically has an average temperature of 19°C (67°F), with highs reaching up to 35°C (95°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec525762677580838280725854
Data source: Temperature data for Ashburn 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 Ashburn

In Ashburn, in April, the precipitation amount is 104 mm (4.1 in) over a span of 8 days.

April Precipitation Trends in Ashburn

The chart displays monthly precipitation patterns in Ashburn, 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 Ashburn, April typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec791158610481951141081159056119
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ashburn

In Ashburn in April, humidity is 76%. With an average temperature of 19°C (67°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sluggish and requiring regular breaks to stay hydrated while exploring.

April Average Humidity in Ashburn

This chart illustrates the average monthly humidity levels in Ashburn, 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 Ashburn is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ashburn

In Ashburn in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Ashburn.

Maximum UV Index Levels in Ashburn for April

The chart shows the monthly maximum UV Index (UVI) for Ashburn 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 Ashburn typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589101111111110864
Data source: Ashburn 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 Ashburn Compares to Other Months

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

This table compares monthly weather conditions in Ashburn, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)79 mm (3.1 inches)85%moderate
February Weather14°C (58°F)115 mm (4.5 inches)82%very high
March Weather17°C (62°F)86 mm (3.4 inches)80%very high
April Weather19°C (67°F)104 mm (4.1 inches)76%very high
May Weather24°C (76°F)81 mm (3.2 inches)73%extreme
June Weather27°C (81°F)95 mm (3.8 inches)74%extreme
July Weather28°C (83°F)114 mm (4.5 inches)80%extreme
August Weather28°C (83°F)108 mm (4.2 inches)79%extreme
September Weather26°C (80°F)114 mm (4.5 inches)83%very high
October Weather22°C (72°F)90 mm (3.5 inches)77%very high
November Weather15°C (58°F)56 mm (2.2 inches)84%high
December Weather12°C (54°F)119 mm (4.7 inches)88%moderate

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