ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1974

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South Dakota (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.37

Anomaly: -1.63

Rank: 3rd Driest

Mean: 0.26

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October - December 1974 South Dakota Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-0.69	-0.90	25	0.22
2. North Central	-1.03	-1.24	6	0.22
3. Northeast	-1.58	-1.91	3	0.33
4. Black Hills	-0.30	-0.69	47	0.39
5. Southwest	-0.81	-1.18	12	0.37
6. Central	-1.22	-1.42	4	0.20
7. East Central	-1.76	-1.95	1	0.19
8. South Central	-1.39	-1.63	3	0.24
9. Southeast	-1.72	-1.90	1	0.17

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping