Value Anomaly Rank Mean

Divisional Palmer Z-Index

December 1985 - February 1986

-4-3-2-11234

Iowa (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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**Insufficient variability in the data record renders rank insignificant

December 1985 - February 1986 Iowa Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	0.21	0.10	61	0.11
2. North Central	0.18	0.09	67	0.09
3. Northeast	0.79	0.72	100	0.07
4. West Central	-0.28	-0.39	40	0.11
5. Central	0.29	0.24	73	0.05
6. East Central	0.57	0.59	90	-0.02
7. Southwest	0.10	0.05	68	0.04
8. South Central	0.14	0.11	65	0.03
9. Southeast	0.30	0.27	69	0.03

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 27, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping