ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 1909

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Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.72

Anomaly: -1.62

Rank: 24th Driest

Mean: -0.10

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September - November 1909 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-0.75	-0.65	48	-0.10
2. East Upper	-2.50	-2.37	8	-0.12
3. Northwest Lower	-2.04	-1.81	18	-0.23
4. Northeast Lower	-2.47	-2.24	12	-0.24
5. West Central Lower	-2.01	-1.88	12	-0.13
6. Central Lower	-1.66	-1.51	19	-0.16
7. East Central Lower	-0.75	-0.68	43	-0.06
8. Southwest Lower	-0.46	-0.45	48	-0.02
9. South Central Lower	-0.18	-0.23	55	0.05
10. Southeast Lower	-0.72	-0.75	39	0.03

Citing This Page

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