nomadseason

April Weather in Hillsboro, United States

Last updated: June 24, 2025

In April, the average temperature in Hillsboro, United States hovers around 19°C (67°F). Daytime highs can reach up to 34°C (94°F), while nighttime lows dip to a cool 2°C (36°F). Expect about 102 mm (4.0 in) of precipitation spread over approximately 9 days, contributing to an average humidity of 79%.

April Temperature in Hillsboro

In April in Hillsboro, the average temperature is 19°C (67°F). The maximum can reach 34°C (94°F), and the minimum can be as low as 2°C (36°F). This weather makes Hillsboro a great destination for both warm and cooler outdoor activities, so be sure to pack a variety of clothing options for your trip!

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 19°C (67°F), with highs reaching up to 34°C (94°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec485061667582868680695853
Data source: Temperature data for Hillsboro generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Hillsboro

In Hillsboro in April, the total precipitation amount is 102 mm (4.0 in) over a span of 9 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 102 mm (4.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec598685102176705591781314457
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Hillsboro

In Hillsboro in April, humidity is 79%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as the air is thick and can leave you feeling sluggish during outdoor adventures.

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 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%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 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.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
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 Weather9°C (49°F)59 mm (2.3 inches)79%moderate
February Weather10°C (51°F)86 mm (3.4 inches)80%high
March Weather16°C (62°F)85 mm (3.3 inches)78%very high
April Weather19°C (67°F)102 mm (4.0 inches)79%very high
May Weather24°C (75°F)176 mm (6.9 inches)81%extreme
June Weather28°C (82°F)70 mm (2.8 inches)77%extreme
July Weather30°C (86°F)55 mm (2.2 inches)71%extreme
August Weather30°C (86°F)91 mm (3.6 inches)67%extreme
September Weather27°C (80°F)77 mm (3.1 inches)69%very high
October Weather21°C (69°F)131 mm (5.2 inches)73%very high
November Weather14°C (58°F)44 mm (1.7 inches)82%high
December Weather12°C (53°F)56 mm (2.2 inches)87%moderate

Compare Hillsboro's Climate with Cities Worldwide