July Weather in Dallas, United States

Last updated: June 24, 2025

In Dallas, United States, the average temperature in July hovers around 20°C (68°F). Expect variability, with minimums dipping to 7°C (45°F) and maximums soaring up to 37°C (98°F). Meanwhile, precipitation is quite light, averaging only 4 mm (0.2 in) over 0 days, contributing to an average humidity of 82%.

July Temperature in Dallas

In July in Dallas, the average temperature is 20°C (68°F). Maximums can reach 37°C (98°F), and minimums can be as low as 7°C (45°F). This makes Dallas an ideal destination for travelers seeking a pleasant climate with the possibility of both warm days and cooler evenings.

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

The chart illustrates July temperature patterns in Dallas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dallas, July typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (98°F) and lows dropping to around 7°C (45°F).

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

July Precipitation in Dallas

In Dallas in July, the precipitation amount is 4 mm (0.2 in) over the course of 0 days.

July Precipitation Trends in Dallas

The chart displays monthly precipitation patterns in Dallas, 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 Dallas, July typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 0 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 Dallas

In Dallas in July humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.

July Average Humidity in Dallas

This chart illustrates the average monthly humidity levels in Dallas, 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 Dallas is approximately 82%, 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 Dallas

In Dallas in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Dallas.

Maximum UV Index Levels in Dallas for July

The chart shows the monthly maximum UV Index (UVI) for Dallas 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 Dallas typically reaches 10, which falls under the very high exposure category.

Data source: Dallas 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 Dallas Compares to Other Months

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

This table compares monthly weather conditions in Dallas, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	165 mm (6.5 inches)	85%	low
February Weather	5°C (41°F)	166 mm (6.5 inches)	84%	moderate
March Weather	7°C (45°F)	133 mm (5.2 inches)	85%	moderate
April Weather	10°C (51°F)	112 mm (4.4 inches)	83%	high
May Weather	14°C (57°F)	54 mm (2.1 inches)	83%	very high
June Weather	17°C (63°F)	44 mm (1.7 inches)	83%	very high
July Weather	20°C (68°F)	4 mm (0.2 inches)	82%	very high
August Weather	21°C (69°F)	5 mm (0.2 inches)	74%	very high
September Weather	17°C (63°F)	60 mm (2.3 inches)	71%	high
October Weather	11°C (53°F)	89 mm (3.5 inches)	81%	moderate
November Weather	8°C (46°F)	147 mm (5.8 inches)	87%	moderate
December Weather	5°C (41°F)	186 mm (7.3 inches)	87%	low