Knoxville, TN (37920) has a humid subtropical climate with hot and humid summers and cold winters. During the summer months, temperatures average in the mid-80s during the day while nights remain warm, usually in the upper 60s. Winters are mild, though snowfall does occur occasionally. Rain is abundant throughout the year, particularly in the spring and fall seasons when thunderstorms are also common.
Knoxville (zip 37920), Tennessee gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Knoxville (zip 37920) averages 6 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Knoxville (zip 37920). The US average is 205 sunny days.
Knoxville (zip 37920) gets some kind of precipitation, on average, 126 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 88 degrees
Winter Low: the January low is 27
Rain: averages 49 inches of rain a year
Snow: averages 6 inches of snow a year