Value Anomaly Rank Mean

Divisional Palmer Z-Index

October - December 2024

-4-3-2-11234

Iowa (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

October - December 2024 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-0.52	-0.66	40	0.14
2. North Central	-0.48	-0.59	47	0.12
3. Northeast	0.10	0.02	57	0.08
4. West Central	-0.24	-0.35	58	0.11
5. Central	0.06	0.04	65	0.02
6. East Central	-0.20	-0.12	58	-0.08
7. Southwest	-0.32	-0.35	52	0.03
8. South Central	0.20	0.25	74	-0.05
9. Southeast	0.09	0.15	73	-0.07

Citing This Page

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