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April Weather in Hillsboro, United States

Last updated: June 24, 2025

In April, the average temperature in Hillsboro, United States hovers around 11°C (52°F), with a minimum dipping to -6°C (22°F) and a maximum peaking at 28°C (84°F). Expect precipitation of approximately 104 mm (4.1 in) spread over 10 days, contributing to an average humidity level of 84%. Stay prepared for varying conditions!

April Temperature in Hillsboro

In April in Hillsboro, the average temperature is 11°C (52°F), with maximums reaching 28°C (84°F) and minimums dipping as low as -6°C (22°F). This climate offers a diverse range of weather, making it ideal for travelers seeking both warm days and cool nights.

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

The chart illustrates April temperature patterns in Hillsboro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hillsboro, April typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (84°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec293243526474777470584136
Data source: Temperature data for Hillsboro 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 Hillsboro

In Hillsboro in April, the precipitation amount is 104 mm (4.1 in) over a period of 10 days.

April Precipitation Trends in Hillsboro

The chart displays monthly precipitation patterns in Hillsboro, 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 Hillsboro, April typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8081114104149103101108661198167
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hillsboro

In Hillsboro in April, humidity is 84%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket, making it uncomfortable for traveling as the dampness clings to your skin and can leave you feeling sluggish and fatigued.

April Average Humidity in Hillsboro

This chart illustrates the average monthly humidity levels in Hillsboro, 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 Hillsboro is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hillsboro

In Hillsboro 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 Hillsboro.

Maximum UV Index Levels in Hillsboro for April

The chart shows the monthly maximum UV Index (UVI) for Hillsboro 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 Hillsboro typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Hillsboro 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 Hillsboro Compares to Other Months

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

This table compares monthly weather conditions in Hillsboro, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (30°F)80 mm (3.2 inches)87%moderate
February Weather0°C (33°F)81 mm (3.2 inches)85%moderate
March Weather6°C (43°F)114 mm (4.5 inches)86%high
April Weather11°C (52°F)104 mm (4.1 inches)84%very high
May Weather18°C (65°F)149 mm (5.8 inches)79%very high
June Weather23°C (75°F)103 mm (4.1 inches)82%extreme
July Weather25°C (77°F)101 mm (4.0 inches)79%very high
August Weather24°C (75°F)108 mm (4.2 inches)70%very high
September Weather21°C (70°F)66 mm (2.6 inches)69%very high
October Weather14°C (58°F)119 mm (4.7 inches)76%high
November Weather5°C (42°F)81 mm (3.2 inches)88%moderate
December Weather2°C (36°F)67 mm (2.7 inches)87%moderate

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