Historical Palmer Drought Indices

Maps

Monthly maps of drought conditions in the contiguous U.S. as measured by the Palmer Drought Severity Index, Palmer Hydrological Drought Index, Palmer Modified Drought Index, and Palmer Z-Index (Palmer, 1965) are provided for January 1900—November 2014. Animations of any set of monthly maps for any period desired can be viewed by selecting the beginning and ending dates of interest.

NCDC transitioned to the nClimDiv dataset on Thursday, March 13, 2014. This was coincident with the release of the February 2014 monthly monitoring report. For details on this transition, please visit our public FTP site and our U.S. Climate Divisional Database site.



Palmer Hydrological Drought Index
January 1933 - December 1938

Dwell
First
Dwell
Last
January 1933 Palmer Hydrological Drought Index

Data File: Palmer Hydrological Drought Index Divisional Data