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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 (52°F). However, be prepared for surprises as temperatures can swing from a chilly -14°C (7°F) to a warm 28°C (83°F). Expect 155 mm (6.1 in) of rain over about 12 days, contributing to an average humidity of 86%. Stay equipped for diverse weather conditions!

March Temperature in Knoxville

In March in Knoxville, the average temperature is 11°C (52°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -14°C (7°F). Be prepared for a wide range of temperatures to ensure a comfortable and enjoyable trip.

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 (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec414652596975797773634945
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 total precipitation amount reaches 155 mm (6.1 in) over the course of 12 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 155 mm (6.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec981721551321061121201269111679132
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 86%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek sheltered spots or indoor attractions to escape the uncomfortable dampness.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%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.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
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 Weather5°C (41°F)98 mm (3.9 inches)86%moderate
February Weather8°C (46°F)172 mm (6.8 inches)86%high
March Weather11°C (52°F)155 mm (6.1 inches)86%very high
April Weather15°C (59°F)132 mm (5.2 inches)82%very high
May Weather21°C (69°F)106 mm (4.2 inches)85%extreme
June Weather24°C (75°F)112 mm (4.4 inches)85%extreme
July Weather26°C (79°F)120 mm (4.7 inches)83%extreme
August Weather25°C (78°F)126 mm (5.0 inches)76%very high
September Weather23°C (74°F)91 mm (3.6 inches)76%very high
October Weather17°C (63°F)116 mm (4.6 inches)80%high
November Weather9°C (49°F)79 mm (3.1 inches)88%moderate
December Weather7°C (45°F)132 mm (5.2 inches)88%moderate

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