July Weather in Hillsboro, United States

Last updated: June 24, 2025

In July, the average temperature in Hillsboro, United States is a warm 27°C (81°F), making it an inviting time to visit. However, temperatures can vary, with minimums dipping to 18°C (65°F) and maximums soaring to 36°C (96°F). Be prepared for some rain, as you'll likely encounter 99 mm (3.9 in) of precipitation over about 15 days. Additionally, expect a muggy atmosphere with an average humidity of 78%.

July Temperature in Hillsboro

In July in Hillsboro, the average temperature is 27°C (81°F), with maximums reaching up to 36°C (96°F) and minimums dropping as low as 18°C (65°F). It's an ideal time for travelers seeking warm weather and a comfortable climate for outdoor activities.

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

The chart illustrates July 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, July typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (96°F) and lows dropping to around 18°C (65°F).

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

July Precipitation in Hillsboro

In Hillsboro in July, the total precipitation amount is 99 mm (3.9 in) over the course of 15 days.

July Precipitation Trends in Hillsboro

The chart displays monthly precipitation patterns in Hillsboro, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Hillsboro, July typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Hillsboro

In Hillsboro in July humidity is 78%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy embrace that makes traveling feel both invigorating and exhausting. Moments spent outside can quickly become clammy and uncomfortable, urging travelers to seek shade and hydration as they explore.

July Average Humidity in Hillsboro

This chart illustrates the average monthly humidity levels in Hillsboro, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Hillsboro is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Hillsboro

In Hillsboro in July, 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 July

The chart shows the monthly maximum UV Index (UVI) for Hillsboro in July, 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 July, the maximum UV index in Hillsboro typically reaches 11, which falls under the extreme exposure category.

Data source: Hillsboro July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	114 mm (4.5 inches)	87%	moderate
February Weather	9°C (49°F)	178 mm (7.0 inches)	87%	high
March Weather	13°C (56°F)	175 mm (6.9 inches)	85%	very high
April Weather	17°C (62°F)	147 mm (5.8 inches)	82%	very high
May Weather	22°C (72°F)	105 mm (4.1 inches)	83%	extreme
June Weather	25°C (78°F)	118 mm (4.7 inches)	82%	extreme
July Weather	27°C (81°F)	99 mm (3.9 inches)	78%	extreme
August Weather	27°C (80°F)	107 mm (4.2 inches)	67%	very high
September Weather	24°C (76°F)	102 mm (4.0 inches)	64%	very high
October Weather	19°C (66°F)	108 mm (4.2 inches)	74%	high
November Weather	11°C (51°F)	71 mm (2.8 inches)	87%	moderate
December Weather	9°C (48°F)	144 mm (5.7 inches)	88%	moderate