Value Anomaly Rank Mean

Divisional Palmer Z-Index Rank (130 years)

October - December 2003

Driest⇣⅒⇣ ⅓Near Normal⇡ ⅓⇡⅒Wettest

South Dakota (Hover over a Climate Division)

Z-Index Palmer Z-Index : -0.64

Anomaly: -0.90

Rank: 24th Driest

Mean: 0.26

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

October - December 2003 South Dakota Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-0.34	-0.55	46	0.22
2. North Central	-0.71	-0.92	25	0.22
3. Northeast	-0.72	-1.05	23	0.33
4. Black Hills	-0.42	-0.81	42	0.39
5. Southwest	-0.21	-0.58	50	0.37
6. Central	-0.58	-0.78	33	0.20
7. East Central	-0.73	-0.92	29	0.19
8. South Central	-0.42	-0.66	39	0.24
9. Southeast	-0.52	-0.69	38	0.17

Citing This Page

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