August Weather in Hillsborough, United States

Last updated: June 24, 2025

In August, the average temperature in Hillsborough, United States is a pleasant 21°C (70°F), with a minimum dipping to 7°C (46°F) and highs soaring to 35°C (95°F). Expect 101 mm (4.0 in) of precipitation spread over approximately 12 days, contributing to an average humidity of 66%. Enjoy a comfortable climate that invites exploration and outdoor activities!

August Temperature in Hillsborough

In August in Hillsborough, the average temperature is 21°C (70°F), with maximums soaring up to 35°C (95°F) and minimums dipping as low as 7°C (46°F). Be sure to pack layers to accommodate the varying temperatures during your travels.

August Weather in Hillsborough: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Hillsborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hillsborough, August typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (46°F).

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

August Precipitation in Hillsborough

In Hillsborough in August, the precipitation amount is 101 mm (4.0 in) spread over 12 days.

August Precipitation Trends in Hillsborough

The chart displays monthly precipitation patterns in Hillsborough, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Hillsborough, August typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Hillsborough

In Hillsborough in August humidity is 66%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for leisurely strolls but slightly sticky for longer excursions.

August Average Humidity in Hillsborough

This chart illustrates the average monthly humidity levels in Hillsborough, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Hillsborough is approximately 66%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Hillsborough

In Hillsborough in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Hillsborough.

Maximum UV Index Levels in Hillsborough for August

The chart shows the monthly maximum UV Index (UVI) for Hillsborough in August, 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 August, the maximum UV index in Hillsborough typically reaches 9, which falls under the very high exposure category.

Data source: Hillsborough August 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 August Weather in Hillsborough Compares to Other Months

Weather in Hillsborough varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Hillsborough, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hillsborough, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (24°F)	74 mm (2.9 inches)	86%	moderate
February Weather	-3°C (27°F)	88 mm (3.5 inches)	84%	moderate
March Weather	0°C (33°F)	81 mm (3.2 inches)	82%	high
April Weather	7°C (45°F)	130 mm (5.1 inches)	80%	very high
May Weather	14°C (57°F)	86 mm (3.4 inches)	72%	very high
June Weather	19°C (67°F)	89 mm (3.5 inches)	72%	very high
July Weather	22°C (72°F)	140 mm (5.5 inches)	67%	very high
August Weather	21°C (70°F)	101 mm (4.0 inches)	66%	very high
September Weather	17°C (63°F)	87 mm (3.4 inches)	71%	high
October Weather	11°C (52°F)	135 mm (5.3 inches)	78%	high
November Weather	3°C (37°F)	104 mm (4.1 inches)	84%	moderate
December Weather	-2°C (28°F)	120 mm (4.7 inches)	81%	low