ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 1950

-4-3-2-11234

Illinois (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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September - November 1950 Illinois Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	-1.22	-1.30	29	0.09
2. Northeast	-1.14	-1.17	32	0.03
3. West	-1.89	-1.90	11	0.01
4. Central	-0.70	-0.76	46	0.06
5. East	0.36	0.34	79	0.02
6. West Southwest	-1.07	-1.17	28	0.10
7. East Southeast	1.29	1.22	104	0.07
8. Southwest	0.87	0.83	97	0.04
9. Southeast	1.37	1.33	111	0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 19, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping