ValueAnomalyRankMean

Divisional Palmer Z-Index

July - September 1991

-4-3-2-11234

Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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July - September 1991 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	0.07	0.06	77	0.01
2. East Upper	-0.63	-0.57	51	-0.06
3. Northwest Lower	-0.22	-0.11	70	-0.12
4. Northeast Lower	-0.57	-0.41	53	-0.16
5. West Central Lower	0.47	0.52	92	-0.06
6. Central Lower	0.30	0.35	79	-0.05
7. East Central Lower	-0.82	-0.91	38	0.09
8. Southwest Lower	-0.02	0.07	70	-0.09
9. South Central Lower	-0.35	-0.35	53	0.00
10. Southeast Lower	-1.20	-1.27	25	0.07

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 16, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping