ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1899

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Iowa (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.37

Anomaly: -1.39

Rank: 19th Driest

Mean: 0.03

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October - December 1899 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-0.46	-0.60	43	0.14
2. North Central	-1.54	-1.66	16	0.12
3. Northeast	-1.47	-1.54	16	0.08
4. West Central	-0.55	-0.66	39	0.11
5. Central	-1.12	-1.14	24	0.02
6. East Central	-2.08	-2.00	12	-0.08
7. Southwest	-0.24	-0.27	55	0.03
8. South Central	-1.49	-1.44	19	-0.05
9. Southeast	-2.04	-1.97	11	-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