ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1982

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Iowa (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 3.13

Anomaly: 3.10

Rank: 2nd Wettest

Mean: 0.03

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October - December 1982 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	3.93	3.79	130	0.14
2. North Central	3.35	3.23	129	0.12
3. Northeast	2.75	2.67	128	0.08
4. West Central	2.86	2.74	127	0.11
5. Central	3.06	3.04	129	0.02
6. East Central	2.84	2.92	128	-0.08
7. Southwest	1.99	1.96	119	0.03
8. South Central	2.51	2.56	126	-0.05
9. Southeast	2.35	2.41	124	-0.07

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 11, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping