ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1955

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Iowa (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -2.80

Anomaly: -2.82

Rank: 2nd Driest

Mean: 0.03

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October - December 1955 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-2.14	-2.28	6	0.14
2. North Central	-2.14	-2.26	7	0.12
3. Northeast	-2.25	-2.33	7	0.08
4. West Central	-2.48	-2.59	1	0.11
5. Central	-2.42	-2.44	3	0.02
6. East Central	-2.45	-2.37	7	-0.08
7. Southwest	-2.77	-2.80	1	0.03
8. South Central	-2.47	-2.42	4	-0.05
9. Southeast	-2.28	-2.21	8	-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