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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 is a mild 13°C (56°F). However, temperatures can vary significantly, with a minimum of -5°C (23°F) and a maximum reaching up to 31°C (88°F). Expect about 158 mm (6.2 in) of precipitation spread over 12 days, contributing to an average humidity level of 78%.

April Temperature in Mount Vernon

In April in Mount Vernon, the average temperature is 13°C (56°F). The maximum can reach 31°C (88°F) and the minimum can be as low as -5°C (23°F). Be prepared for a wide range of temperatures during your travels, making it essential to pack accordingly.

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 13°C (56°F), with highs reaching up to 31°C (88°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec363849556676797673594641
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 158 mm (6.2 in) over a span of 12 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 158 mm (6.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec85871461581678785128581526753
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 78%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities a bit uncomfortable, creating a heavy atmosphere that clings to the skin, urging travelers to dress in layers for warmth and comfort.

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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 (36°F)85 mm (3.3 inches)81%moderate
February Weather3°C (38°F)87 mm (3.4 inches)78%high
March Weather10°C (50°F)146 mm (5.8 inches)76%high
April Weather13°C (56°F)158 mm (6.2 inches)78%very high
May Weather19°C (66°F)167 mm (6.6 inches)83%very high
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (79°F)85 mm (3.4 inches)78%extreme
August Weather25°C (77°F)128 mm (5.0 inches)68%very high
September Weather23°C (73°F)58 mm (2.3 inches)64%very high
October Weather15°C (59°F)152 mm (6.0 inches)70%high
November Weather8°C (47°F)67 mm (2.6 inches)83%moderate
December Weather5°C (42°F)53 mm (2.1 inches)87%moderate

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