April Weather in Hillsboro, United States

Last updated: June 24, 2025

In April, the average temperature in Hillsboro, United States hovers around 18°C (64°F), with a delightful range from a cool 1°C (35°F) to a warm 31°C (88°F). Expect 163 mm (6.4 in) of precipitation over about 9 days, contributing to an average humidity level of 82%. Perfect for enjoying the lush surroundings!

April Temperature in Hillsboro

In April in Hillsboro, the average temperature is 18°C (64°F). Maximum temperatures can reach up to 31°C (88°F), while the minimum can drop as low as 1°C (35°F). Be prepared for a wide range of temperatures, so pack accordingly for your travels!

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 18°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 1°C (35°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 total precipitation amount is 163 mm (6.4 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 163 mm (6.4 inches) of precipitation spread over approximately 9 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 82%. With an average temperature of 18°C (64°F), this humidity feels like a warm, muggy embrace that can make exploring the area feel stifling, leaving travelers drenched in sweat and longing for respite in the shade.

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.

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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme 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	9°C (48°F)	109 mm (4.3 inches)	85%	moderate
February Weather	12°C (53°F)	159 mm (6.3 inches)	84%	high
March Weather	16°C (60°F)	126 mm (5.0 inches)	82%	very high
April Weather	18°C (64°F)	163 mm (6.4 inches)	82%	extreme
May Weather	23°C (74°F)	132 mm (5.2 inches)	82%	extreme
June Weather	26°C (79°F)	155 mm (6.1 inches)	79%	extreme
July Weather	27°C (81°F)	109 mm (4.3 inches)	82%	extreme
August Weather	27°C (81°F)	138 mm (5.4 inches)	77%	extreme
September Weather	25°C (78°F)	100 mm (3.9 inches)	74%	very high
October Weather	20°C (69°F)	96 mm (3.8 inches)	73%	very high
November Weather	13°C (55°F)	70 mm (2.8 inches)	85%	high
December Weather	11°C (52°F)	121 mm (4.8 inches)	88%	moderate