ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 1945

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Iowa (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.68

Anomaly: -0.78

Rank: 40th Driest

Mean: 0.10

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September - November 1945 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-1.24	-1.42	25	0.19
2. North Central	-1.02	-1.18	33	0.16
3. Northeast	-0.19	-0.30	53	0.11
4. West Central	-0.87	-1.03	32	0.17
5. Central	-0.63	-0.74	44	0.11
6. East Central	-0.13	-0.15	66	0.02
7. Southwest	-1.12	-1.18	33	0.06
8. South Central	-0.28	-0.32	58	0.04
9. Southeast	0.50	0.47	85	0.03

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 15, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping