July Weather in Knoxville, United States

Last updated: June 24, 2025

In July, the average temperature in Knoxville, United States is a warm 26°C (79°F). Expect a minimum of 15°C (59°F) and a maximum of 36°C (98°F), making it a month of warm contrasts. During this time, precipitation averages around 120 mm (4.7 in) over 14 days, contributing to an average humidity of 83%. Whether you're braving the heat or enjoying the occasional shower, it's a vibrant time to experience all that this destination has to offer!

July Temperature in Knoxville

In July in Knoxville, the average temperature is 26°C (79°F), with maximums reaching 36°C (98°F) and minimums dropping as low as 15°C (59°F). This makes it an ideal time to travel for those who enjoy warm weather and plenty of sunshine.

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

The chart illustrates July temperature patterns in Knoxville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Knoxville, July typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (98°F) and lows dropping to around 15°C (59°F).

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

July Precipitation in Knoxville

In Knoxville in July, the precipitation amount is 120 mm (4.7 in) over the course of 14 days.

July Precipitation Trends in Knoxville

The chart displays monthly precipitation patterns in Knoxville, 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 Knoxville, July typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 14 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 Knoxville

In Knoxville in July, humidity is 83%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket enveloping you, making travel an exercise in endurance as the air clings to your skin and saps your energy.

July Average Humidity in Knoxville

This chart illustrates the average monthly humidity levels in Knoxville, 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 Knoxville is approximately 83%, 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 Knoxville

In Knoxville in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Knoxville.

Maximum UV Index Levels in Knoxville for July

The chart shows the monthly maximum UV Index (UVI) for Knoxville 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 Knoxville typically reaches 11, which falls under the extreme exposure category.

Data source: Knoxville 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 Knoxville Compares to Other Months

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

This table compares monthly weather conditions in Knoxville, 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 (41°F)	98 mm (3.9 inches)	86%	moderate
February Weather	8°C (46°F)	172 mm (6.8 inches)	86%	high
March Weather	11°C (52°F)	155 mm (6.1 inches)	86%	very high
April Weather	15°C (59°F)	132 mm (5.2 inches)	82%	very high
May Weather	21°C (69°F)	106 mm (4.2 inches)	85%	extreme
June Weather	24°C (75°F)	112 mm (4.4 inches)	85%	extreme
July Weather	26°C (79°F)	120 mm (4.7 inches)	83%	extreme
August Weather	25°C (78°F)	126 mm (5.0 inches)	76%	very high
September Weather	23°C (74°F)	91 mm (3.6 inches)	76%	very high
October Weather	17°C (63°F)	116 mm (4.6 inches)	80%	high
November Weather	9°C (49°F)	79 mm (3.1 inches)	88%	moderate
December Weather	7°C (45°F)	132 mm (5.2 inches)	88%	moderate