Value Anomaly Rank Mean

Palmer Drought Severity Index

September 1936

-4-3-2-11234

Climate Regions (Hover over a Climate Region)

PDSI Palmer Drought Severity Index (PDSI) : --

Anomaly: --

Rank: -- Driest

Mean: --

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

September 1936 Climate Regions Palmer Drought Severity Index

Climate Region	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Northeast	-1.67	-1.77	36	0.10
Upper Midwest	-4.04	-4.27	4	0.23
Ohio Valley	0.34	0.23	66	0.11
Southeast	-1.86	-1.79	36	-0.07
Northern Rockies and Plains	-7.43	-8.25	2	0.82
South	-2.42	-2.47	25	0.05
Southwest	0.39	-0.06	77	0.45
Northwest	-1.65	-1.62	36	-0.03
West	-0.26	-0.38	70	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