July Weather in Rockville, United States

Last updated: June 24, 2025

In Rockville, United States, the average temperature in July hovers around 25°C (78°F), providing a pleasant climate for outdoor activities. Be prepared for a range of temperatures, with a minimum of 13°C (55°F) and a maximum reaching up to 35°C (95°F). During this month, the region experiences an average precipitation of 103 mm (4.1 in) over approximately 11 days, contributing to an overall average humidity of 79%. Enjoy the vibrant atmosphere while staying comfy and prepared for occasional showers!

July Temperature in Rockville

In July in Rockville, the average temperature is 25°C (78°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 13°C (55°F). This weather makes it an ideal time for travelers to explore outdoor activities while also being prepared for occasional cooler evenings.

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

The chart illustrates July temperature patterns in Rockville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockville, July typically has an average temperature of 25°C (78°F), with highs reaching up to 35°C (95°F) and lows dropping to around 13°C (55°F).

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

July Precipitation in Rockville

In Rockville in July, the precipitation amount is 103 mm (4.1 in) spread over 11 days.

July Precipitation Trends in Rockville

The chart displays monthly precipitation patterns in Rockville, 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 Rockville, July typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 11 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 Rockville

In Rockville in July humidity is 79%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities less inviting and requiring frequent breaks to stay refreshed.

July Average Humidity in Rockville

This chart illustrates the average monthly humidity levels in Rockville, 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 Rockville is approximately 79%, 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 Rockville

In Rockville 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 Rockville.

Maximum UV Index Levels in Rockville for July

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

Data source: Rockville 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 Rockville Compares to Other Months

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

This table compares monthly weather conditions in Rockville, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	84 mm (3.3 inches)	87%	moderate
February Weather	1°C (33°F)	88 mm (3.5 inches)	85%	moderate
March Weather	6°C (43°F)	122 mm (4.8 inches)	86%	high
April Weather	11°C (53°F)	106 mm (4.2 inches)	84%	very high
May Weather	18°C (65°F)	140 mm (5.5 inches)	79%	very high
June Weather	24°C (75°F)	113 mm (4.5 inches)	82%	extreme
July Weather	25°C (78°F)	103 mm (4.1 inches)	79%	very high
August Weather	24°C (75°F)	100 mm (3.9 inches)	70%	very high
September Weather	21°C (71°F)	64 mm (2.5 inches)	69%	very high
October Weather	14°C (58°F)	118 mm (4.6 inches)	76%	high
November Weather	5°C (42°F)	87 mm (3.4 inches)	88%	moderate
December Weather	2°C (36°F)	75 mm (3.0 inches)	87%	moderate