Value Anomaly Rank Mean

Palmer Drought Severity Index

September 1961

-4-3-2-11234

Climate Regions (Hover over a Climate Region)

PDSI Palmer Drought Severity Index (PDSI) : --

Anomaly: --

Rank: -- Driest

Mean: --

Text Labels

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

September 1961 Climate Regions Palmer Drought Severity Index

Climate Region	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Northeast	-0.91	-1.01	47	0.10
Upper Midwest	1.08	0.85	81	0.23
Ohio Valley	2.65	2.54	106	0.11
Southeast	-0.71	-0.64	55	-0.07
Northern Rockies and Plains	1.27	0.45	69	0.82
South	3.78	3.73	119	0.05
Southwest	1.34	0.89	95	0.45
Northwest	0.15	0.18	75	-0.03
West	-1.80	-1.92	36	0.12

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Regional Mapping, published July 2025, retrieved on July 28, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/mapping