ValueAnomalyRankMean

Palmer Drought Severity Index

September 1958

-4-3-2-11234

Climate Regions (Hover over a Climate Region)

PDSIPalmer Drought Severity Index (PDSI):

Anomaly:

Rank:

Mean:

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September 1958 Climate Regions Regional Palmer Drought Severity Index

Climate Region	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Northeast	2.83	2.73	115	0.10
Upper Midwest	-1.37	-1.60	37	0.23
Ohio Valley	3.05	2.94	115	0.11
Southeast	-0.64	-0.57	58	-0.07
Northern Rockies and Plains	-0.84	-1.66	43	0.82
South	4.87	4.82	128	0.05
Southwest	3.37	2.92	114	0.45
Northwest	-1.04	-1.01	48	-0.03
West	0.02	-0.10	81	0.12

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Regional Mapping, published March 2025, retrieved on April 5, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/mapping