March Weather in Knoxville, United States

Last updated: June 24, 2025

In March, the average temperature in Knoxville, United States hovers around 15°C (59°F), offering a mild climate. However, be prepared for a temperature range that can swing from a chilly -5°C (23°F) to a warm 31°C (88°F). Expect about 80 mm (3.2 in) of precipitation spread across 10 days, coupled with an average humidity of 83%. This blend of factors creates a diverse and dynamic weather experience!

March Temperature in Knoxville

In March in Knoxville, the average temperature is 15°C (59°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -5°C (23°F). This range makes it essential for travelers to pack accordingly for both warm and cool weather.

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

The chart illustrates March 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, March typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around -5°C (23°F).

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

March Precipitation in Knoxville

In Knoxville in March, the precipitation amount is 80 mm (3.2 in) over a span of 10 days.

March Precipitation Trends in Knoxville

The chart displays monthly precipitation patterns in Knoxville, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Knoxville, March typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Knoxville

In Knoxville in March humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.

March Average Humidity in Knoxville

This chart illustrates the average monthly humidity levels in Knoxville, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Knoxville is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Knoxville

In Knoxville in March, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Knoxville.

Maximum UV Index Levels in Knoxville for March

The chart shows the monthly maximum UV Index (UVI) for Knoxville in March, 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 March, the maximum UV index in Knoxville typically reaches 9, which falls under the very high exposure category.

Data source: Knoxville March 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 March 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 March’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 March’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