Wanderlust World Wanderlust World According to the National Weather Service, Knoxville had a total annual rainfall in 2009 of 54.34 inches. The three-year average for 2007 to 2009 was 41.02 inches. The ten-year average for 2000-2009 was 44.79 inches. Monthly rainfall averages for Knoxville range from 2.04 inches in October to 5.28 in July.
Knoxville has a temperate climate. Temperatures rarely fall below an average low of 29 degrees in the winter. Summer highs are normally an average of 87 degrees. Average daily temperatures range from 40 degrees in January and 78 degrees in July. The proximity of the mountains, large amounts of rainfall and its position in the jet stream are partly responsible for the temperateness of Knoxville's climate.
The large amount of rainfall in Knoxville is important to maintain the natural habitat of the area. The area is lush with trees and grass that require rainfall to sustain life. The numerous rivers and lakes require the large amount of rainfall to sustain the ecological environment as well.