July Weather in McLean, United States

Last updated: June 24, 2025

In July, the average temperature in McLean, United States is a warm 27°C (81°F). Expect a range, with minimums dipping to 16°C (61°F) and maximums soaring up to 42°C (108°F). While you bask in the warmth, be prepared for some rain too, as the area receives an average of 36 mm (1.4 in) of precipitation over 7 days. With an average humidity of 82%, it’s a perfect time to enjoy the summer vibes!

July Temperature in McLean

In July in McLean, the average temperature is 27°C (81°F), with maximums reaching up to 42°C (108°F) and minimums dropping as low as 16°C (61°F). Be prepared for varied weather conditions and stay hydrated during your travels!

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

The chart illustrates July temperature patterns in McLean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In McLean, July typically has an average temperature of 27°C (81°F), with highs reaching up to 42°C (108°F) and lows dropping to around 16°C (61°F).

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

July Precipitation in McLean

In McLean in July, the total precipitation amount is 36 mm (1.4 in) over a span of 7 days.

July Precipitation Trends in McLean

The chart displays monthly precipitation patterns in McLean, 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 McLean, July typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 7 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 McLean

In McLean in July humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

July Average Humidity in McLean

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

In McLean in July, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in McLean.

Maximum UV Index Levels in McLean for July

The chart shows the monthly maximum UV Index (UVI) for McLean 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 McLean typically reaches 12, which falls under the extreme exposure category.

Data source: McLean 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 McLean Compares to Other Months

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

This table compares monthly weather conditions in McLean, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	23 mm (0.9 inches)	75%	moderate
February Weather	4°C (39°F)	15 mm (0.6 inches)	76%	high
March Weather	11°C (51°F)	59 mm (2.3 inches)	64%	very high
April Weather	14°C (58°F)	36 mm (1.4 inches)	70%	very high
May Weather	20°C (68°F)	82 mm (3.2 inches)	78%	extreme
June Weather	25°C (77°F)	59 mm (2.3 inches)	81%	extreme
July Weather	27°C (81°F)	36 mm (1.4 inches)	82%	extreme
August Weather	26°C (79°F)	43 mm (1.7 inches)	78%	extreme
September Weather	23°C (73°F)	50 mm (2.0 inches)	72%	very high
October Weather	15°C (59°F)	69 mm (2.7 inches)	73%	high
November Weather	9°C (49°F)	14 mm (0.5 inches)	80%	moderate
December Weather	6°C (42°F)	23 mm (0.9 inches)	81%	moderate