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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 17°C (62°F). While the mercury can dip as low as 1°C (33°F), it can also soar to a balmy 30°C (87°F). Expect about 147 mm (5.8 in) of precipitation spread over 10 days, contributing to an average humidity of 82%. Stay prepared for a mix of weather!

April Temperature in Hillsboro

In April in Hillsboro, the average temperature is 17°C (62°F). Maximums can reach 30°C (87°F), while minimums can drop to as low as 1°C (33°F). Be prepared for a wide range of temperatures when traveling to Hillsboro this April.

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 17°C (62°F), with highs reaching up to 30°C (87°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec444956627278818076665148
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 147 mm (5.8 in) over the course 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 147 mm (5.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1141781751471051189910710210871144
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 82%. With an average temperature of 17°C (62°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and the air thicker, which can be quite exhausting for traveling.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
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 Weather7°C (44°F)114 mm (4.5 inches)87%moderate
February Weather9°C (49°F)178 mm (7.0 inches)87%high
March Weather13°C (56°F)175 mm (6.9 inches)85%very high
April Weather17°C (62°F)147 mm (5.8 inches)82%very high
May Weather22°C (72°F)105 mm (4.1 inches)83%extreme
June Weather25°C (78°F)118 mm (4.7 inches)82%extreme
July Weather27°C (81°F)99 mm (3.9 inches)78%extreme
August Weather27°C (80°F)107 mm (4.2 inches)67%very high
September Weather24°C (76°F)102 mm (4.0 inches)64%very high
October Weather19°C (66°F)108 mm (4.2 inches)74%high
November Weather11°C (51°F)71 mm (2.8 inches)87%moderate
December Weather9°C (48°F)144 mm (5.7 inches)88%moderate

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