ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 2017

-4-3-2-11234

Illinois (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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September - November 2017 Illinois Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	0.06	-0.03	67	0.09
2. Northeast	1.17	1.13	99	0.03
3. West	-0.76	-0.77	46	0.01
4. Central	-0.91	-0.97	33	0.06
5. East	0.05	0.04	67	0.02
6. West Southwest	-1.56	-1.66	18	0.10
7. East Southeast	-0.51	-0.58	44	0.07
8. Southwest	-1.65	-1.69	18	0.04
9. Southeast	-1.01	-1.05	27	0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published May 2025, retrieved on May 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping