Welcome to the Tennessee Climatological Service....


Currently, Tennessee does not have an official NOAA state climatologist (SC). TVA retired the program in late 2005, and no agency or university has been able to reestablish the State Climatologist Office (SCO). In the meantime, The Tennessee Climatological Service was initiatated by the Department of Biosystems Engineering and Soil Science and the Department of Geography at the University of Tennessee in Knoxville, TN, the Department of Agriculture, Geoscience and Natural Resources at the University of Tennessee at Martin, and the Department of Agricultural Sciences at Tennessee State University. The function of this service is to collect, disseminate, and interpret climate data for the State of Tennessee. This web site provides links to sources of climate data and seasonal forecasts for Tennessee. Most data on the site are available for free; a charge may apply for additional data or interpretation, or for testimony in a legal case. 

Featured Climate Reports

Tables of Wet/dry sequences for selected locations in Tennessee (pdf)

Maps of monthly averages of daily light integrals (DLI) for Tennessee (pdf)

Climate Divisions of Tennessee:

The National Climatic Data Center divides each state into climate divisions for many climate summaries. Tennessee has fou​r climate divisions​.

Current Moisture & Drought Status:

The Tennessee Valley annual accumulated rainfall was approximately normal for 2014, after running below normal through the end of September.
So far in 2015, rainfall and runoff are slightly behind normal.

Rainfall Runoff Comparison (Eastern Valley)