ValueRankAnomalyMean

Palmer Drought Severity Index

September 1927

-4-3-2-11234

Climate Regions (Hover over a Climate Region)

PDSIPalmer Drought Severity Index (PDSI):

Rank:

Anomaly:

Mean:

Text Labels

Download: CSV JSON XML

September 1927 Climate Regions Regional Palmer Drought Severity Index

Climate Region	Value	Rank 130 Years	Anomaly	1901-2000 Mean
Northeast	0.77	70	0.67	0.10
Upper Midwest	0.12	64	-0.11	0.23
Ohio Valley	4.06	128	3.95	0.11
Southeast	-3.34	9	-3.27	-0.07
Northern Rockies and Plains	4.75	118	3.93	0.82
South	-0.28	62	-0.33	0.05
Southwest	2.79	108	2.34	0.45
Northwest	1.91	115	1.94	-0.03
West	1.16	99	1.04	0.12

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Regional Mapping, published June 2025, retrieved on June 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/mapping