August Weather in Thornton, United States

Last updated: June 24, 2025

In August, the average temperature in Thornton, United States is a comfortable 19°C (66°F), with a range that can drop to a chilly 5°C (41°F) and soar to a warm 32°C (89°F). Expect 99 mm (3.9 in) of precipitation over approximately 13 days, and a significant average humidity of 66% adds to the overall climate experience.

August Temperature in Thornton

In August in Thornton, the average temperature is 19°C (66°F), with maximums that can reach 32°C (89°F) and minimums that can drop as low as 5°C (41°F). Be sure to pack layers to comfortably enjoy the varied temperatures during your travels.

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

The chart illustrates August temperature patterns in Thornton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thornton, August typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (89°F) and lows dropping to around 5°C (41°F).

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

August Precipitation in Thornton

In Thornton in August, the precipitation amount is 99 mm (3.9 in) over the course of 13 days.

August Precipitation Trends in Thornton

The chart displays monthly precipitation patterns in Thornton, 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 Thornton, August typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 13 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 Thornton

In Thornton in August, humidity is 66%. With an average temperature of 19°C (66°F), this humidity feels like a warm, cozy embrace, creating an inviting atmosphere for exploring the local sights while ensuring you stay hydrated and comfortable throughout your adventures.

August Average Humidity in Thornton

This chart illustrates the average monthly humidity levels in Thornton, 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 Thornton 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 Thornton

In Thornton 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 Thornton.

Maximum UV Index Levels in Thornton for August

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

Data source: Thornton 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 Thornton Compares to Other Months

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

This table compares monthly weather conditions in Thornton, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	85 mm (3.4 inches)	86%	moderate
February Weather	-6°C (21°F)	86 mm (3.4 inches)	84%	moderate
March Weather	-2°C (28°F)	75 mm (2.9 inches)	82%	high
April Weather	5°C (41°F)	129 mm (5.1 inches)	80%	very high
May Weather	12°C (53°F)	98 mm (3.9 inches)	72%	very high
June Weather	17°C (63°F)	105 mm (4.1 inches)	72%	very high
July Weather	20°C (68°F)	135 mm (5.3 inches)	67%	very high
August Weather	19°C (66°F)	99 mm (3.9 inches)	66%	very high
September Weather	15°C (59°F)	71 mm (2.8 inches)	71%	high
October Weather	8°C (47°F)	143 mm (5.6 inches)	78%	moderate
November Weather	0°C (33°F)	119 mm (4.7 inches)	84%	moderate
December Weather	-5°C (23°F)	113 mm (4.5 inches)	81%	low