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March Weather in Knoxville, United States

Last updated: June 24, 2025

In March, the average temperature in Knoxville, United States hovers around 11°C (53°F). During this time, temperatures can fluctuate significantly, with a minimum of -9°C (16°F) and a maximum reaching 31°C (87°F). Expect 156 mm (6.1 in) of precipitation spread over 14 days, contributing to an average humidity level of 77%.

March Temperature in Knoxville

In March in Knoxville, the average temperature is 11°C (53°F), with maximums reaching 31°C (87°F) and minimums dropping as low as -9°C (16°F). This wide range of temperatures means that travelers should be prepared for both warm and chilly conditions.

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 11°C (53°F), with highs reaching up to 31°C (87°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec394353586876807874624945
Data source: Temperature data for Knoxville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Knoxville

In Knoxville in March, the precipitation amount is 156 mm (6.1 in) over the course of 14 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 156 mm (6.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec101142156154213114771167210796110
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Knoxville

In Knoxville in March humidity is 77%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities require extra layers and a quick adjustment to the cool, moist air.

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 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%77%78%82%81%75%61%59%69%82%88%
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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
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.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)101 mm (4.0 inches)82%moderate
February Weather6°C (43°F)142 mm (5.6 inches)79%high
March Weather11°C (53°F)156 mm (6.1 inches)77%very high
April Weather15°C (59°F)154 mm (6.1 inches)78%very high
May Weather20°C (69°F)213 mm (8.4 inches)82%extreme
June Weather25°C (77°F)114 mm (4.5 inches)81%extreme
July Weather27°C (80°F)77 mm (3.0 inches)75%extreme
August Weather26°C (78°F)116 mm (4.6 inches)61%very high
September Weather24°C (75°F)72 mm (2.8 inches)59%very high
October Weather17°C (62°F)107 mm (4.2 inches)69%high
November Weather9°C (49°F)96 mm (3.8 inches)82%moderate
December Weather7°C (45°F)110 mm (4.3 inches)87%moderate

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