July Weather in Knoxville, United States

Last updated: June 24, 2025

In Knoxville, United States, the average temperature in July is a warm 27°C (82°F). While you can expect a minimum of 18°C (65°F) and a maximum of 38°C (100°F), the season brings along an average humidity of 83%. Be prepared for some rain, as 95 mm (3.7 in) of precipitation can fall over approximately 16 days.

July Temperature in Knoxville

In July in Knoxville, the average temperature is 27°C (82°F). Maximum temperatures can reach 38°C (100°F), while minimums can drop to as low as 18°C (65°F). This makes it an ideal time for travelers seeking warm weather and outdoor adventures.

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 27°C (82°F), with highs reaching up to 38°C (100°F) and lows dropping to around 18°C (65°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 95 mm (3.7 in) spread over 16 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 95 mm (3.7 inches) of precipitation spread over approximately 16 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 27°C (82°F), this humidity feels like a thick, warm blanket enveloping you, making outdoor activities exhausting and encouraging visitors to seek the comfort of shade or air conditioning while exploring the area.

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	9°C (49°F)	110 mm (4.3 inches)	86%	moderate
February Weather	13°C (55°F)	119 mm (4.7 inches)	84%	high
March Weather	15°C (59°F)	80 mm (3.2 inches)	83%	very high
April Weather	18°C (65°F)	95 mm (3.8 inches)	81%	very high
May Weather	23°C (74°F)	83 mm (3.3 inches)	81%	extreme
June Weather	26°C (79°F)	113 mm (4.4 inches)	81%	extreme
July Weather	27°C (82°F)	95 mm (3.7 inches)	83%	extreme
August Weather	27°C (81°F)	118 mm (4.6 inches)	81%	extreme
September Weather	25°C (78°F)	96 mm (3.8 inches)	82%	very high
October Weather	21°C (69°F)	100 mm (3.9 inches)	78%	very high
November Weather	13°C (56°F)	76 mm (3.0 inches)	86%	high
December Weather	11°C (51°F)	121 mm (4.7 inches)	89%	moderate