ValueAnomalyRankMean

Palmer Drought Severity Index

October 2012

-4-3-2-11234

Climate Regions (Hover over a Climate Region)

PDSIPalmer Drought Severity Index (PDSI):

Anomaly:

Rank:

Mean:

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October 2012 Climate Regions Regional Palmer Drought Severity Index

Climate Region	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Northeast	1.54	1.45	86	0.09
Upper Midwest	-3.23	-3.48	8	0.25
Ohio Valley	1.10	0.94	73	0.16
Southeast	1.11	1.03	83	0.08
Northern Rockies and Plains	-5.68	-6.51	4	0.83
South	-4.23	-4.36	9	0.13
Southwest	-5.76	-6.16	4	0.40
Northwest	0.63	0.71	87	-0.08
West	-3.59	-3.75	15	0.16

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Regional Mapping, published April 2025, retrieved on April 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/mapping