ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 2020

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Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 0.26

Anomaly: 0.36

Rank: 57th Wettest

Mean: -0.10

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September - November 2020 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	1.33	1.43	102	-0.10
2. East Upper	1.73	1.85	110	-0.12
3. Northwest Lower	0.83	1.06	97	-0.23
4. Northeast Lower	0.75	0.99	93	-0.24
5. West Central Lower	-0.91	-0.78	46	-0.13
6. Central Lower	-1.01	-0.85	44	-0.16
7. East Central Lower	-0.75	-0.69	43	-0.06
8. Southwest Lower	-0.97	-0.96	37	-0.02
9. South Central Lower	-0.48	-0.53	47	0.05
10. Southeast Lower	-0.42	-0.46	52	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