July Weather in Thornton, United States

Last updated: June 24, 2025

In July, the average temperature in Thornton, United States hovers around 20°C (68°F). Expect minimums to dip to 7°C (44°F) and maximums to soar up to 33°C (92°F). With an average precipitation of 135 mm (5.3 in) over about 13 days, and humidity reaching 67%, be prepared for a mixed bag of weather!

July Temperature in Thornton

In July in Thornton, the average temperature is 20°C (68°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 7°C (44°F). Be sure to pack a range of clothing options to enjoy all the weather this destination has to offer!

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

The chart illustrates July 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, July typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (44°F).

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

July Precipitation in Thornton

In Thornton in July, the precipitation amount is 135 mm (5.3 in) over the course of 13 days.

July Precipitation Trends in Thornton

The chart displays monthly precipitation patterns in Thornton, 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 Thornton, July typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 13 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 Thornton

In Thornton in July humidity is 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.

July Average Humidity in Thornton

This chart illustrates the average monthly humidity levels in Thornton, 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 Thornton is approximately 67%, 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 Thornton

In Thornton in July, 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 July

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

Data source: Thornton 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 Thornton Compares to Other Months

Weather in Thornton varies notably across the year, with each month offering distinct climate conditions. This page compares July’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 July’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