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April Weather in McLean, United States

Last updated: June 24, 2025

In April, the average temperature in McLean, United States hovers around 14°C (58°F). While you might experience a chilly minimum of -6°C (22°F), be prepared for warmer days with highs reaching up to 35°C (95°F). Expect 36 mm (1.4 in) of precipitation spread over about 5 days, and keep in mind that humidity levels will average around 70%.

April Temperature in McLean

In April in McLean, the average temperature is 14°C (58°F). Maximums can reach 35°C (95°F), while minimums can drop as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both lightweight and warm clothing.

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

The chart illustrates April temperature patterns in McLean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In McLean, April typically has an average temperature of 14°C (58°F), with highs reaching up to 35°C (95°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec383951576877817973594842
Data source: Temperature data for McLean 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 McLean

In McLean in April, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.

April Precipitation Trends in McLean

The chart displays monthly precipitation patterns in McLean, 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 McLean, April typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec231559368259364350691423
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in McLean

In McLean in April, humidity is 70%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace that can make outdoor activities feel sticky and exhausting, potentially limiting your exploration to cooler hours of the day.

April Average Humidity in McLean

This chart illustrates the average monthly humidity levels in McLean, 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 McLean is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%64%70%78%81%82%78%72%73%81%81%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in McLean

In McLean 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 McLean.

Maximum UV Index Levels in McLean for April

The chart shows the monthly maximum UV Index (UVI) for McLean 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 McLean typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110754
Data source: McLean 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 McLean Compares to Other Months

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

This table compares monthly weather conditions in McLean, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)23 mm (0.9 inches)75%moderate
February Weather4°C (39°F)15 mm (0.6 inches)76%high
March Weather11°C (51°F)59 mm (2.3 inches)64%very high
April Weather14°C (58°F)36 mm (1.4 inches)70%very high
May Weather20°C (68°F)82 mm (3.2 inches)78%extreme
June Weather25°C (77°F)59 mm (2.3 inches)81%extreme
July Weather27°C (81°F)36 mm (1.4 inches)82%extreme
August Weather26°C (79°F)43 mm (1.7 inches)78%extreme
September Weather23°C (73°F)50 mm (2.0 inches)72%very high
October Weather15°C (59°F)69 mm (2.7 inches)73%high
November Weather9°C (49°F)14 mm (0.5 inches)80%moderate
December Weather6°C (42°F)23 mm (0.9 inches)81%moderate

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