Last updated: June 24, 2025
In March, the average temperature in Knoxville, United States hovers around 5°C (41°F), with extremes ranging from a chilly -19°C (-2°F) to a pleasant 24°C (76°F). Expect 105 mm (4.1 in) of precipitation spread over 11 days, contributing to an average humidity of 81%. Prepare accordingly for the dynamic weather this month!
In March in Knoxville, the average temperature is 5°C (41°F), with maximums reaching up to 24°C (76°F) and minimums dropping as low as -19°C (-2°F). Travelers should be prepared for a wide range of temperatures, from chilly conditions to unseasonably warm days.
In Knoxville in March, the precipitation amount is 105 mm (4.1 in) over the course of 11 days.
In Knoxville in March, humidity is 81%. With an average temperature of 5°C (41°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor exploration uncomfortable and requiring warm, waterproof clothing to stay comfortable while traveling.
In Knoxville in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Knoxville, you can refer to this Hourly UV Index in Knoxville.
UV Risk Categories
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.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -4°C (26°F) | 57 mm (2.2 inches) | 81% | moderate |
February Weather | -2°C (28°F) | 65 mm (2.6 inches) | 81% | moderate |
March Weather | 5°C (41°F) | 105 mm (4.1 inches) | 81% | high |
April Weather | 10°C (50°F) | 111 mm (4.4 inches) | 82% | very high |
May Weather | 17°C (63°F) | 160 mm (6.3 inches) | 78% | very high |
June Weather | 23°C (74°F) | 152 mm (6.0 inches) | 81% | extreme |
July Weather | 25°C (77°F) | 108 mm (4.2 inches) | 79% | very high |
August Weather | 23°C (74°F) | 67 mm (2.6 inches) | 77% | very high |
September Weather | 20°C (69°F) | 99 mm (3.9 inches) | 78% | very high |
October Weather | 13°C (55°F) | 126 mm (5.0 inches) | 78% | high |
November Weather | 4°C (40°F) | 52 mm (2.1 inches) | 87% | moderate |
December Weather | 1°C (33°F) | 50 mm (2.0 inches) | 84% | low |