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April Weather in Mount Vernon, United States

Last updated: June 24, 2025

In April, the average temperature in Mount Vernon, United States hovers around 14°C (57°F). While you might experience a chilly minimum of -4°C (26°F), it's also possible to enjoy a warm day with highs reaching 30°C (86°F). Be prepared for about 120 mm (4.7 in) of precipitation spread over 10 days, and expect average humidity levels to be around 80%.

April Temperature in Mount Vernon

In April in Mount Vernon, the average temperature is 14°C (57°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -4°C (26°F), making it important for travelers to prepare for a wide range of weather conditions.

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

The chart illustrates April 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, April typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec353948576977807773614541
Data source: Temperature data for Mount Vernon 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 Mount Vernon

In Mount Vernon in April, the precipitation amount is 120 mm (4.7 in) spread over a duration of 10 days.

April Precipitation Trends in Mount Vernon

The chart displays monthly precipitation patterns in Mount Vernon, 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 Mount Vernon, April typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec971141381201261137580791099092
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Mount Vernon

In Mount Vernon in April, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.

April Average Humidity in Mount Vernon

This chart illustrates the average monthly humidity levels in Mount Vernon, 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 Mount Vernon is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%84%80%82%83%80%76%75%75%85%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Mount Vernon

In Mount Vernon 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 Mount Vernon.

Maximum UV Index Levels in Mount Vernon for April

The chart shows the monthly maximum UV Index (UVI) for Mount Vernon 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 Mount Vernon typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710111110109753
Data source: Mount Vernon 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 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 April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)97 mm (3.8 inches)86%moderate
February Weather4°C (39°F)114 mm (4.5 inches)84%moderate
March Weather9°C (49°F)138 mm (5.4 inches)84%high
April Weather14°C (57°F)120 mm (4.7 inches)80%very high
May Weather20°C (69°F)126 mm (5.0 inches)82%extreme
June Weather25°C (77°F)113 mm (4.5 inches)83%extreme
July Weather27°C (80°F)75 mm (3.0 inches)79%very high
August Weather25°C (78°F)80 mm (3.2 inches)76%very high
September Weather23°C (73°F)79 mm (3.1 inches)75%very high
October Weather16°C (61°F)109 mm (4.3 inches)74%high
November Weather7°C (46°F)90 mm (3.5 inches)85%moderate
December Weather5°C (41°F)92 mm (3.6 inches)88%moderate

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