April Weather in Hillsboro, United States

Last updated: June 24, 2025

In Hillsboro, United States, the average temperature in April hovers around 7°C (45°F). Be prepared for a range of temperatures, with minimums dipping to -10°C (14°F) and maximums reaching up to 26°C (79°F). Expect about 91 mm (3.6 in) of precipitation over approximately 12 days, contributing to an average humidity level of 83%. Enjoy the diverse climate!

April Temperature in Hillsboro

In April in Hillsboro, the average temperature is 7°C (45°F). Maximum temperatures can reach 26°C (79°F), while minimums can drop as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 7°C (45°F), with highs reaching up to 26°C (79°F) and lows dropping to around -10°C (14°F).

Data source: Temperature data for Hillsboro generated using information from the Copernicus Climate Change Service.

April Precipitation in Hillsboro

In Hillsboro in April, the precipitation amount is 91 mm (3.6 in) over a period of 12 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 91 mm (3.6 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Hillsboro

In Hillsboro in April, humidity is 83%. With an average temperature of 7°C (45°F), this humidity feels like a chilly blanket wrapping around you, making travel somewhat uncomfortable as you navigate the dampness that settles in your clothes, leading to a heavy and muggy experience outdoors.

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 83%, offering insight into how humid the weather typically is during this month.

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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	41 mm (1.6 inches)	84%	low
February Weather	-6°C (21°F)	54 mm (2.1 inches)	85%	moderate
March Weather	1°C (35°F)	59 mm (2.3 inches)	84%	moderate
April Weather	7°C (45°F)	91 mm (3.6 inches)	83%	very high
May Weather	15°C (59°F)	137 mm (5.4 inches)	75%	very high
June Weather	21°C (70°F)	119 mm (4.7 inches)	79%	very high
July Weather	23°C (74°F)	107 mm (4.2 inches)	75%	very high
August Weather	21°C (70°F)	116 mm (4.6 inches)	69%	very high
September Weather	18°C (64°F)	110 mm (4.3 inches)	74%	very high
October Weather	10°C (50°F)	111 mm (4.4 inches)	79%	moderate
November Weather	2°C (35°F)	51 mm (2.0 inches)	88%	moderate
December Weather	-3°C (27°F)	46 mm (1.8 inches)	82%	low