ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1903

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Iowa (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.14

Anomaly: -0.17

Rank: 60th Driest

Mean: 0.03

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October - December 1903 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	0.70	0.56	84	0.14
2. North Central	-0.18	-0.30	55	0.12
3. Northeast	-0.48	-0.56	38	0.08
4. West Central	0.17	0.06	72	0.11
5. Central	-0.85	-0.87	32	0.02
6. East Central	-0.10	-0.03	61	-0.08
7. Southwest	-0.22	-0.25	57	0.03
8. South Central	-0.49	-0.45	43	-0.05
9. Southeast	-0.12	-0.05	64	-0.07

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