ValueAnomalyRankMean

Divisional Palmer Z-Index

August - October 1920

-4-3-2-11234

Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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August - October 1920 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-2.05	-1.93	13	-0.12
2. East Upper	-1.98	-1.85	13	-0.13
3. Northwest Lower	-0.80	-0.58	45	-0.22
4. Northeast Lower	-0.89	-0.67	45	-0.22
5. West Central Lower	-1.67	-1.53	17	-0.14
6. Central Lower	-1.30	-1.15	25	-0.15
7. East Central Lower	-1.03	-1.01	31	-0.02
8. Southwest Lower	-2.32	-2.25	7	-0.07
9. South Central Lower	-1.33	-1.36	18	0.02
10. Southeast Lower	-0.42	-0.45	54	0.03

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 9, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping