Precipitation Trends Tool

This tool provides a time series of SPEI, precipitation, or PET for any given location. Data can be downloaded using link below the graph.

It may take a minute or two to load. Please be patient!
Right click and hit Save Linked File to download data as csv
Website created by Nathan Lemoine.
Email Nate [dot] Lemoine [at] for help.
SPEI data from CSIC
Precipitation and PET data from CEDA
See Harris et al. for details regarding PET calculation