Climate and Weather for May in Knoxville, TN

Average temperature in May

The average temperature in Knoxville in May for a typical day ranges from a high of 77°F (25°C) to a low of 57°F (14°C). Some would describe it as pleasantly warm, humid but cool.

Rain

In Knoxville in May, there's a 38% chance of rain on an average day. And on the average day it rains or snows, we get 0.42 in (10.7 mm) of precipitation. In more common terms of how much that is, some would describe it as light rain.

Cloudiness

The average amount of time that the sky is clear or sunny (partly cloudy or less) in Knoxville during May is 11.4 hours (48% of the day).

Sunrise and sunset

The average day in Knoxville during May has 14.1 hours of daylight, with sunrise at 6:30 AM and sunset at 8:33 PM.

Humidity

In May, Knoxville is moderately humid with an average amount of 75% (relative humidity), which could be described as humid but cool.

Wind

Historically, the wind in Knoxville during May blows at an average speed of 9.2 mph (14.8 kph).

What to wear

With an average high of 77°F (25°C) and a low of 57°F (14°C), it generally feels pleasantly warm, humid but cool. There might also be a small chance of rain. With that in mind, most people would dress in something light like your favorite shirt.