City of Knoxville
Stormwater Engineering Division
Rainfall data is collected and maintained
by the Stormwater Engineering Division, Suite 480 City County
Building (215-2148), as part of the NPDES monitoring program;
see the NPDES
web page for additional information. The current monitoring
station locations are shown in the Year
5 NPDES Annual Report (Appendix E) submitted to TDEC.
See Notes 4 and 5 for new locations of two monitoring stations.
Monthly rainfall data files contain the
daily rainfall amounts at the five City monitoring stations
and at the official NOAA station at McGhee-Tyson Airport. Downloaded
files from this web site in portable document format (as signified
by *.pdf filenames) can be viewed on screen or printed using
the free software called Adobe Reader. Be sure to edit settings
Temperature and precipitation records for
the official NOAA station at McGhee-Tyson Airport can be viewed
at the National
Weather Service web page. The city monitoring stations
show that there can be a large spatial variation for a particular
rainfall event. Rainfall can occur in some parts of the city
and not others due to prevailing winds, localized thunderstorms,
alignment of ridges and valleys, etc.
The monitoring station for First Creek
has been relocated in April 2005. It is now located at the KAT
station (maintenance yard) on Jessamine Street near Fifth
The monitoring station for Second Creek
has been relocated in October 2005, and is now located on Williams
Creek in east Knoxville near Dandridge Avenue.
Here are the top ten wettest years
for the City of Knoxville. The years 2002 and 2003 have been
very wet but do not qualify for the list. Keep in mind that
rainfall-measuring techniques have changed over the years.
Source for rainfall
data: National Weather Service, Morristown TN