Value Anomaly Rank Mean

Palmer Drought Severity Index

September 1897

-4-3-2-11234

Climate Regions (Hover over a Climate Region)

PDSI Palmer Drought Severity Index (PDSI) : --

Anomaly: --

Rank: -- Driest

Mean: --

Text Labels

Download: CSV JSON XML

*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

September 1897 Climate Regions Palmer Drought Severity Index

Climate Region	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Northeast	1.73	1.63	93	0.10
Upper Midwest	-1.49	-1.72	32	0.23
Ohio Valley	-2.20	-2.31	21	0.11
Southeast	-2.39	-2.32	23	-0.07
Northern Rockies and Plains	1.75	0.93	81	0.82
South	-2.66	-2.71	22	0.05
Southwest	3.05	2.60	112	0.45
Northwest	1.19	1.22	101	-0.03
West	-1.47	-1.59	42	0.12

Citing This Page

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