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April Weather in Wilsonville, United States

Last updated: June 24, 2025

In Wilsonville, United States, the average temperature in April hovers around 12°C (55°F). You'll experience a range of temperatures, with a minimum of -5°C (24°F) and a maximum of 30°C (86°F). Rainfall can be expected, with an average precipitation of 142 mm (5.6 in) spread over 11 days. Be prepared for the humidity too, as it averages a sticky 83%!

April Temperature in Wilsonville

In April in Wilsonville, the average temperature is 12°C (55°F), with maximums reaching 30°C (86°F) and minimums dropping as low as -5°C (24°F). This temperature variability makes it essential for travelers to pack both warm and light clothing for their visit.

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

The chart illustrates April temperature patterns in Wilsonville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wilsonville, April typically has an average temperature of 12°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec313446546776797672594338
Data source: Temperature data for Wilsonville 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 Wilsonville

In Wilsonville in April, the precipitation amount is 142 mm (5.6 in) over the course of 11 days.

April Precipitation Trends in Wilsonville

The chart displays monthly precipitation patterns in Wilsonville, 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 Wilsonville, April typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7881132142162111102119631057760
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Wilsonville

In Wilsonville in April humidity is 83%. With an average temperature of 12°C (55°F), this humidity feels like a cool, damp embrace that makes exploring the area both refreshing and slightly uncomfortable, requiring travelers to dress in layers and stay hydrated.

April Average Humidity in Wilsonville

This chart illustrates the average monthly humidity levels in Wilsonville, 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 Wilsonville is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Wilsonville

In Wilsonville 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 Wilsonville.

Maximum UV Index Levels in Wilsonville for April

The chart shows the monthly maximum UV Index (UVI) for Wilsonville 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 Wilsonville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Wilsonville 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 Wilsonville Compares to Other Months

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

This table compares monthly weather conditions in Wilsonville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)78 mm (3.1 inches)84%moderate
February Weather1°C (35°F)81 mm (3.2 inches)82%moderate
March Weather8°C (46°F)132 mm (5.2 inches)84%high
April Weather12°C (55°F)142 mm (5.6 inches)83%very high
May Weather19°C (67°F)162 mm (6.4 inches)80%very high
June Weather25°C (77°F)111 mm (4.4 inches)83%extreme
July Weather26°C (79°F)102 mm (4.0 inches)82%extreme
August Weather24°C (76°F)119 mm (4.7 inches)82%very high
September Weather22°C (72°F)63 mm (2.5 inches)79%very high
October Weather15°C (59°F)105 mm (4.1 inches)79%high
November Weather6°C (44°F)77 mm (3.0 inches)88%moderate
December Weather3°C (38°F)60 mm (2.4 inches)87%moderate

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