average temperature knoxville tennessee
49.8Â°F. Knoxville's coldest month is January when the average temperature overnight is 28.9Â°F. In July, the warmest month, the average day time temperature rises to 86.9Â°F. The driest month in Knoxville is October with 2.65 inches of precipitation, and with 5.17 inches March is the wettest month.